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Inverter Size
Slightly Off topic but I know someone here can answer the question.
I am trying to run a Dell Inspiron 5100 in my truck using a small inverter but all I do is blow fuses in the truck. This is a 6 month old Chev 1500 in excellent condition. My "brick" 110 V power supply reads: AC 100-240 V - 103-109 VA 50-60Hz DC 20 V 4.5 A What size inverter in watts do I need to use with this power supply? Can a cigar lighter outlet supply the required power? TIA for your help. |
Inverter Size
I would think that 20V * 4.5A = 90 watts. Small inverters are not real
efficient (some even have a fan) and the "brick" is not to efficent either so: Input power may be more like 90/.75 = 120 watts due to the efficiency of the "brick". and 120/0.75 = 160 watts for the inverter. 160 watts / 12 volts = 13 amps (are you fuzed for 10A? Probably need 20A) This seems quite high. I run a inspiron (old style 266MHz) which only draws about 5 amps on 12 vDC through an inverter and brick. Kind of cycles between 2.5A to 5A. It could be all that horsepower of the 5100. Try slowing it's CPU down (if possible) or at least charging up the batteries prior to plugging it in. By the way I use a Prowatt 250 or a real smaller one (size wise with fan - whole thing plugs into the lighter) rated at 175W. "Fred Miller" wrote in message ... Slightly Off topic but I know someone here can answer the question. I am trying to run a Dell Inspiron 5100 in my truck using a small inverter but all I do is blow fuses in the truck. This is a 6 month old Chev 1500 in excellent condition. My "brick" 110 V power supply reads: AC 100-240 V - 103-109 VA 50-60Hz DC 20 V 4.5 A What size inverter in watts do I need to use with this power supply? Can a cigar lighter outlet supply the required power? TIA for your help. |
Inverter Size
I would think that 20V * 4.5A = 90 watts. Small inverters are not real
efficient (some even have a fan) and the "brick" is not to efficent either so: Input power may be more like 90/.75 = 120 watts due to the efficiency of the "brick". and 120/0.75 = 160 watts for the inverter. 160 watts / 12 volts = 13 amps (are you fuzed for 10A? Probably need 20A) This seems quite high. I run a inspiron (old style 266MHz) which only draws about 5 amps on 12 vDC through an inverter and brick. Kind of cycles between 2.5A to 5A. It could be all that horsepower of the 5100. Try slowing it's CPU down (if possible) or at least charging up the batteries prior to plugging it in. By the way I use a Prowatt 250 or a real smaller one (size wise with fan - whole thing plugs into the lighter) rated at 175W. "Fred Miller" wrote in message ... Slightly Off topic but I know someone here can answer the question. I am trying to run a Dell Inspiron 5100 in my truck using a small inverter but all I do is blow fuses in the truck. This is a 6 month old Chev 1500 in excellent condition. My "brick" 110 V power supply reads: AC 100-240 V - 103-109 VA 50-60Hz DC 20 V 4.5 A What size inverter in watts do I need to use with this power supply? Can a cigar lighter outlet supply the required power? TIA for your help. |
Inverter Size
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"Fred Miller" wrote: Slightly Off topic but I know someone here can answer the question. I am trying to run a Dell Inspiron 5100 in my truck using a small inverter but all I do is blow fuses in the truck. This is a 6 month old Chev 1500 in excellent condition. My "brick" 110 V power supply reads: AC 100-240 V - 103-109 VA 50-60Hz DC 20 V 4.5 A What size inverter in watts do I need to use with this power supply? Can a cigar lighter outlet supply the required power? TIA for your help. Why not just get the cigarette lighter connector from Dell? I can't get one for my Dell Inspiron 600m, but I have one for the Inspiron 2500, and it says Auto-Air Adapter designed for use with Dell (tm) Lat. C Family & Insp. 2500, 4000, 8000 Input 11-16 Vdc 8 Amp Max. Output 20V 3.5A Model # DE2035A-259A Made in USA Protection Class III 0137 LIND Electronics, Inc. 6414 Cambridge St. Minneapolis, MN 55426 grandma Rosalie S/V RosalieAnn, Leonardtown, MD CSY 44 WO #156 http://home.mindspring.com/~gmbeasley/id2.html |
Inverter Size
x-no-archive:yes
"Fred Miller" wrote: Slightly Off topic but I know someone here can answer the question. I am trying to run a Dell Inspiron 5100 in my truck using a small inverter but all I do is blow fuses in the truck. This is a 6 month old Chev 1500 in excellent condition. My "brick" 110 V power supply reads: AC 100-240 V - 103-109 VA 50-60Hz DC 20 V 4.5 A What size inverter in watts do I need to use with this power supply? Can a cigar lighter outlet supply the required power? TIA for your help. Why not just get the cigarette lighter connector from Dell? I can't get one for my Dell Inspiron 600m, but I have one for the Inspiron 2500, and it says Auto-Air Adapter designed for use with Dell (tm) Lat. C Family & Insp. 2500, 4000, 8000 Input 11-16 Vdc 8 Amp Max. Output 20V 3.5A Model # DE2035A-259A Made in USA Protection Class III 0137 LIND Electronics, Inc. 6414 Cambridge St. Minneapolis, MN 55426 grandma Rosalie S/V RosalieAnn, Leonardtown, MD CSY 44 WO #156 http://home.mindspring.com/~gmbeasley/id2.html |
Inverter Size
If the brick input requirement is 100-240 volts at 109 VA, use a 12
volt to 120 volt inverter rated 250 watts output for a rugged service life. It will probably take about 10 amps on a 14 volt source like a cigar lighter. Your car should fuse the cigar lighter at this current (10A) or maybe 15 amps. You start up the inverter with the PC off to stagger the startup surge. You could still be unlucky, if the brick is switching low on the sine wave. Brian W On Fri, 26 Dec 2003 16:45:01 GMT, "Fred Miller" wrote: Slightly Off topic but I know someone here can answer the question. I am trying to run a Dell Inspiron 5100 in my truck using a small inverter but all I do is blow fuses in the truck. This is a 6 month old Chev 1500 in excellent condition. My "brick" 110 V power supply reads: AC 100-240 V - 103-109 VA 50-60Hz DC 20 V 4.5 A What size inverter in watts do I need to use with this power supply? Can a cigar lighter outlet supply the required power? TIA for your help. |
Inverter Size
If the brick input requirement is 100-240 volts at 109 VA, use a 12
volt to 120 volt inverter rated 250 watts output for a rugged service life. It will probably take about 10 amps on a 14 volt source like a cigar lighter. Your car should fuse the cigar lighter at this current (10A) or maybe 15 amps. You start up the inverter with the PC off to stagger the startup surge. You could still be unlucky, if the brick is switching low on the sine wave. Brian W On Fri, 26 Dec 2003 16:45:01 GMT, "Fred Miller" wrote: Slightly Off topic but I know someone here can answer the question. I am trying to run a Dell Inspiron 5100 in my truck using a small inverter but all I do is blow fuses in the truck. This is a 6 month old Chev 1500 in excellent condition. My "brick" 110 V power supply reads: AC 100-240 V - 103-109 VA 50-60Hz DC 20 V 4.5 A What size inverter in watts do I need to use with this power supply? Can a cigar lighter outlet supply the required power? TIA for your help. |
Inverter Size
On Fri, 26 Dec 2003 16:45:01 GMT, "Fred Miller"
wrote: Slightly Off topic but I know someone here can answer the question. I am trying to run a Dell Inspiron 5100 in my truck using a small inverter but all I do is blow fuses in the truck. This is a 6 month old Chev 1500 in excellent condition. My "brick" 110 V power supply reads: AC 100-240 V - 103-109 VA 50-60Hz DC 20 V 4.5 A What size inverter in watts do I need to use with this power supply? Can a cigar lighter outlet supply the required power? TIA for your help. 109VA = Volt-Amperes = about 110 watts, give or take a few. You need at least a 150 watt inverter, 300's are cheap and more useful and won't be overloaded. I recommend the 300 watt Tripplite by name because anything plugged into a Tripplite anything has a $50K insurance policy plugged into it. A piece of Chinese crap from the Shack does not. I've never had a Tripplite product fail, for any reason. There's a 500W inverter that regularly goes into overload running my stepvan shop out on the road, every day. If I can't tear it up, you can't either.....(c; Tripplites are the best, hands down. Now, let's talk about those durn fuses! 120 watts at 12 Volts is 120/12 = 10 Amps. How big was that fuse? The 300 watt inverter needs about 360/12 = 30 amps at full load....leaving a little to keep the fuse from blowing just because you tried to start something. Look at the fuse on the inverter, itself. If it has a 30A fuse.....the circuit it plugs into must also have 30 amps of capacity and a 30A fuse, too! Sound logical? If the inverter blows the fuse with nothing plugged into it, even a 5A fuse....IT'S TOAST! Time to junk the Chinese crap and go buy one of those slick Tripplite inverters I've never been able to trash!.... Larry W4CSC NNNN |
Inverter Size
On Fri, 26 Dec 2003 16:45:01 GMT, "Fred Miller"
wrote: Slightly Off topic but I know someone here can answer the question. I am trying to run a Dell Inspiron 5100 in my truck using a small inverter but all I do is blow fuses in the truck. This is a 6 month old Chev 1500 in excellent condition. My "brick" 110 V power supply reads: AC 100-240 V - 103-109 VA 50-60Hz DC 20 V 4.5 A What size inverter in watts do I need to use with this power supply? Can a cigar lighter outlet supply the required power? TIA for your help. 109VA = Volt-Amperes = about 110 watts, give or take a few. You need at least a 150 watt inverter, 300's are cheap and more useful and won't be overloaded. I recommend the 300 watt Tripplite by name because anything plugged into a Tripplite anything has a $50K insurance policy plugged into it. A piece of Chinese crap from the Shack does not. I've never had a Tripplite product fail, for any reason. There's a 500W inverter that regularly goes into overload running my stepvan shop out on the road, every day. If I can't tear it up, you can't either.....(c; Tripplites are the best, hands down. Now, let's talk about those durn fuses! 120 watts at 12 Volts is 120/12 = 10 Amps. How big was that fuse? The 300 watt inverter needs about 360/12 = 30 amps at full load....leaving a little to keep the fuse from blowing just because you tried to start something. Look at the fuse on the inverter, itself. If it has a 30A fuse.....the circuit it plugs into must also have 30 amps of capacity and a 30A fuse, too! Sound logical? If the inverter blows the fuse with nothing plugged into it, even a 5A fuse....IT'S TOAST! Time to junk the Chinese crap and go buy one of those slick Tripplite inverters I've never been able to trash!.... Larry W4CSC NNNN |
Inverter Size
I got a 175 W for work lights and an Inspiron 8200. Works for me, but that's pretty minimal. Were I to go full bore and get updated weather charts, downloads via wireless, etc., I would probably get a small tower for its robustness and hardwire it into a bigger inverter, say 1500 watts or so. The draw is mainly for hard drive spin-ups, fans and the monitor, so go LCD and link it to all plotter/GPS/depth displays. After all, a laptop is $2K, but an adequate sailor's PC tower could be $500 or less (small HD, older processor, not excessive RAM). I would suspect a decent flat-screen LCD of 15" or so would be more expensive than an "under the nav table" minitower, particularly as a lot of the guts could be salvaged from other PCs. The amount of computing power required to display charts, weather data and so on is greatly exceeded by the current crop of PCs, and the current crop of proprietary "marine" systems are overpriced. You'd be better focussing on the connectivity (Iridium, wireless, SSB, and so on) than the computing power or need for a laptop. Laptops are easy to steal and easy to take with you, although they don't travel well in an open boat. Nobody will swipe a generic $500 tower...you could wirelessly network to a heavily stowed second tower in the lazarette and back up data and STILL pay less than a fragile laptop... R. On Fri, 26 Dec 2003 11:30:37 -0600, "Rick & Linda Bernard" wrote: I would think that 20V * 4.5A = 90 watts. Small inverters are not real efficient (some even have a fan) and the "brick" is not to efficent either so: Input power may be more like 90/.75 = 120 watts due to the efficiency of the "brick". and 120/0.75 = 160 watts for the inverter. 160 watts / 12 volts = 13 amps (are you fuzed for 10A? Probably need 20A) This seems quite high. I run a inspiron (old style 266MHz) which only draws about 5 amps on 12 vDC through an inverter and brick. Kind of cycles between 2.5A to 5A. It could be all that horsepower of the 5100. Try slowing it's CPU down (if possible) or at least charging up the batteries prior to plugging it in. By the way I use a Prowatt 250 or a real smaller one (size wise with fan - whole thing plugs into the lighter) rated at 175W. "Fred Miller" wrote in message ... Slightly Off topic but I know someone here can answer the question. I am trying to run a Dell Inspiron 5100 in my truck using a small inverter but all I do is blow fuses in the truck. This is a 6 month old Chev 1500 in excellent condition. My "brick" 110 V power supply reads: AC 100-240 V - 103-109 VA 50-60Hz DC 20 V 4.5 A What size inverter in watts do I need to use with this power supply? Can a cigar lighter outlet supply the required power? TIA for your help. |
Inverter Size
I got a 175 W for work lights and an Inspiron 8200. Works for me, but that's pretty minimal. Were I to go full bore and get updated weather charts, downloads via wireless, etc., I would probably get a small tower for its robustness and hardwire it into a bigger inverter, say 1500 watts or so. The draw is mainly for hard drive spin-ups, fans and the monitor, so go LCD and link it to all plotter/GPS/depth displays. After all, a laptop is $2K, but an adequate sailor's PC tower could be $500 or less (small HD, older processor, not excessive RAM). I would suspect a decent flat-screen LCD of 15" or so would be more expensive than an "under the nav table" minitower, particularly as a lot of the guts could be salvaged from other PCs. The amount of computing power required to display charts, weather data and so on is greatly exceeded by the current crop of PCs, and the current crop of proprietary "marine" systems are overpriced. You'd be better focussing on the connectivity (Iridium, wireless, SSB, and so on) than the computing power or need for a laptop. Laptops are easy to steal and easy to take with you, although they don't travel well in an open boat. Nobody will swipe a generic $500 tower...you could wirelessly network to a heavily stowed second tower in the lazarette and back up data and STILL pay less than a fragile laptop... R. On Fri, 26 Dec 2003 11:30:37 -0600, "Rick & Linda Bernard" wrote: I would think that 20V * 4.5A = 90 watts. Small inverters are not real efficient (some even have a fan) and the "brick" is not to efficent either so: Input power may be more like 90/.75 = 120 watts due to the efficiency of the "brick". and 120/0.75 = 160 watts for the inverter. 160 watts / 12 volts = 13 amps (are you fuzed for 10A? Probably need 20A) This seems quite high. I run a inspiron (old style 266MHz) which only draws about 5 amps on 12 vDC through an inverter and brick. Kind of cycles between 2.5A to 5A. It could be all that horsepower of the 5100. Try slowing it's CPU down (if possible) or at least charging up the batteries prior to plugging it in. By the way I use a Prowatt 250 or a real smaller one (size wise with fan - whole thing plugs into the lighter) rated at 175W. "Fred Miller" wrote in message ... Slightly Off topic but I know someone here can answer the question. I am trying to run a Dell Inspiron 5100 in my truck using a small inverter but all I do is blow fuses in the truck. This is a 6 month old Chev 1500 in excellent condition. My "brick" 110 V power supply reads: AC 100-240 V - 103-109 VA 50-60Hz DC 20 V 4.5 A What size inverter in watts do I need to use with this power supply? Can a cigar lighter outlet supply the required power? TIA for your help. |
Inverter Size
There is a man who makes power supplies for laptops. I cant find his address a
present. Some one else might have it. I also saw an add for an APU for mobile stuff in an add for Circuit city or some other Sunday add. I'll try and find it. It charged the laptop, PDA & cell phone, from 120 ac, 12 v dc and airplanes for around $100.00. Mike |
Inverter Size
There is a man who makes power supplies for laptops. I cant find his address a
present. Some one else might have it. I also saw an add for an APU for mobile stuff in an add for Circuit city or some other Sunday add. I'll try and find it. It charged the laptop, PDA & cell phone, from 120 ac, 12 v dc and airplanes for around $100.00. Mike |
Inverter Size
"Fred Miller" wrote in message ...
Slightly Off topic but I know someone here can answer the question. I am trying to run a Dell Inspiron 5100 in my truck using a small inverter but all I do is blow fuses in the truck. This is a 6 month old Chev 1500 in excellent condition. My "brick" 110 V power supply reads: AC 100-240 V - 103-109 VA 50-60Hz DC 20 V 4.5 A What size inverter in watts do I need to use with this power supply? Can a cigar lighter outlet supply the required power? TIA for your help. Whether in a truck or a boat, it's inefficient to convert DC to AC back to DC. You'd be better off powering a tower or laptop computer directly from the DC off the vehicle. A trip to Radio Shack should provide all the parts needed. An AT power supply for a tower computer has +12V, -12V, +5V, -5V, and ground. For the +12V and -12V, you will need to filter and regulate the DC feed from your battery bank. The +5V and -5V can be derived from your filtered 12V side, just step the voltage down via a stepdown transformer and regulate it. Make sure to filter the ground as well or gremlins will get your electronics. Now take the wires from your existing PC power supply and connect them to your new power supply. This is overly simplified, but I think the whole project can be built from schematics found in the Radio Shack project books. Laptops are a little bit trickier. Find the voltage rating of the battery, then step the 12V DC of the vehicle to the proper voltage. The tricky part is determining if the voltage regulator is built into the battery or the laptop itself. You may have to make the voltage regulator yourself. If you don't need the regulator, connect your new power supply to the battery contact pads on the laptop. Just remember that you will definately void any warranty doing this. Dan Schiro M/V Sea Ranch Pensacola Sail and Power Squadron |
Inverter Size
"Fred Miller" wrote in message ...
Slightly Off topic but I know someone here can answer the question. I am trying to run a Dell Inspiron 5100 in my truck using a small inverter but all I do is blow fuses in the truck. This is a 6 month old Chev 1500 in excellent condition. My "brick" 110 V power supply reads: AC 100-240 V - 103-109 VA 50-60Hz DC 20 V 4.5 A What size inverter in watts do I need to use with this power supply? Can a cigar lighter outlet supply the required power? TIA for your help. Whether in a truck or a boat, it's inefficient to convert DC to AC back to DC. You'd be better off powering a tower or laptop computer directly from the DC off the vehicle. A trip to Radio Shack should provide all the parts needed. An AT power supply for a tower computer has +12V, -12V, +5V, -5V, and ground. For the +12V and -12V, you will need to filter and regulate the DC feed from your battery bank. The +5V and -5V can be derived from your filtered 12V side, just step the voltage down via a stepdown transformer and regulate it. Make sure to filter the ground as well or gremlins will get your electronics. Now take the wires from your existing PC power supply and connect them to your new power supply. This is overly simplified, but I think the whole project can be built from schematics found in the Radio Shack project books. Laptops are a little bit trickier. Find the voltage rating of the battery, then step the 12V DC of the vehicle to the proper voltage. The tricky part is determining if the voltage regulator is built into the battery or the laptop itself. You may have to make the voltage regulator yourself. If you don't need the regulator, connect your new power supply to the battery contact pads on the laptop. Just remember that you will definately void any warranty doing this. Dan Schiro M/V Sea Ranch Pensacola Sail and Power Squadron |
Inverter Size
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1 On 30 Dec 2003 10:32:28 -0800, Dan wrote: "Fred Miller" wrote in message ... Slightly Off topic but I know someone here can answer the question. I am trying to run a Dell Inspiron 5100 in my truck using a small inverter but all I do is blow fuses in the truck. This is a 6 month old Chev 1500 in excellent condition. My "brick" 110 V power supply reads: AC 100-240 V - 103-109 VA 50-60Hz DC 20 V 4.5 A What size inverter in watts do I need to use with this power supply? Can a cigar lighter outlet supply the required power? TIA for your help. Whether in a truck or a boat, it's inefficient to convert DC to AC back to DC. You'd be better off powering a tower or laptop computer directly from the DC off the vehicle. A trip to Radio Shack should provide all the parts needed. An AT power supply for a tower computer has +12V, -12V, +5V, -5V, and ground. For the +12V and -12V, you will need to filter and regulate the DC feed from your battery bank. The +5V and -5V can be derived from your filtered 12V side, just step the voltage down via a stepdown transformer and regulate it. Make sure to filter the ground as well or gremlins will get your electronics. Now take the wires from your existing PC power supply and connect them to your new power supply. This is overly simplified, but I think the whole project can be built from schematics found in the Radio Shack project books. Laptops are a little bit trickier. Find the voltage rating of the battery, then step the 12V DC of the vehicle to the proper voltage. The tricky part is determining if the voltage regulator is built into the battery or the laptop itself. You may have to make the voltage regulator yourself. If you don't need the regulator, connect your new power supply to the battery contact pads on the laptop. Just remember that you will definately void any warranty doing this. Dan Schiro M/V Sea Ranch Pensacola Sail and Power Squadron In order to use a transformer to step the voltage down, you must by definition be using AC. A transformer doesn't work with a DC level. Rather than go to the hassle of designing and building your own powersupplies, you can buy std AT style supplies that take 12VDC as an input, but usually in limited power forms, don't try powering your 500W game monster machine from one. Expect to pay $200 and up for one. For the laptop, most manufacturers make a 12V car powersupply as an option. If not, then Targus among others, will happily sell you one. The downside to low voltage DC of course, is the I2R losses in the cables, 120VAC may lose some in the translation from DC-AC, but it has the advantage of low loss with relatively small gauge wire. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQE/8meQd90bcYOAWPYRAuUoAKCkpe7G1QMqI69rHIY/NDsUMufRMwCg35tZ uQMzGFjAHt6OJ/BpercEcYM= =jt/b -----END PGP SIGNATURE----- -- Jim Richardson http://www.eskimo.com/~warlock Those who live by the sword are shot by those who don't. |
Inverter Size
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1 On 30 Dec 2003 10:32:28 -0800, Dan wrote: "Fred Miller" wrote in message ... Slightly Off topic but I know someone here can answer the question. I am trying to run a Dell Inspiron 5100 in my truck using a small inverter but all I do is blow fuses in the truck. This is a 6 month old Chev 1500 in excellent condition. My "brick" 110 V power supply reads: AC 100-240 V - 103-109 VA 50-60Hz DC 20 V 4.5 A What size inverter in watts do I need to use with this power supply? Can a cigar lighter outlet supply the required power? TIA for your help. Whether in a truck or a boat, it's inefficient to convert DC to AC back to DC. You'd be better off powering a tower or laptop computer directly from the DC off the vehicle. A trip to Radio Shack should provide all the parts needed. An AT power supply for a tower computer has +12V, -12V, +5V, -5V, and ground. For the +12V and -12V, you will need to filter and regulate the DC feed from your battery bank. The +5V and -5V can be derived from your filtered 12V side, just step the voltage down via a stepdown transformer and regulate it. Make sure to filter the ground as well or gremlins will get your electronics. Now take the wires from your existing PC power supply and connect them to your new power supply. This is overly simplified, but I think the whole project can be built from schematics found in the Radio Shack project books. Laptops are a little bit trickier. Find the voltage rating of the battery, then step the 12V DC of the vehicle to the proper voltage. The tricky part is determining if the voltage regulator is built into the battery or the laptop itself. You may have to make the voltage regulator yourself. If you don't need the regulator, connect your new power supply to the battery contact pads on the laptop. Just remember that you will definately void any warranty doing this. Dan Schiro M/V Sea Ranch Pensacola Sail and Power Squadron In order to use a transformer to step the voltage down, you must by definition be using AC. A transformer doesn't work with a DC level. Rather than go to the hassle of designing and building your own powersupplies, you can buy std AT style supplies that take 12VDC as an input, but usually in limited power forms, don't try powering your 500W game monster machine from one. Expect to pay $200 and up for one. For the laptop, most manufacturers make a 12V car powersupply as an option. If not, then Targus among others, will happily sell you one. The downside to low voltage DC of course, is the I2R losses in the cables, 120VAC may lose some in the translation from DC-AC, but it has the advantage of low loss with relatively small gauge wire. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQE/8meQd90bcYOAWPYRAuUoAKCkpe7G1QMqI69rHIY/NDsUMufRMwCg35tZ uQMzGFjAHt6OJ/BpercEcYM= =jt/b -----END PGP SIGNATURE----- -- Jim Richardson http://www.eskimo.com/~warlock Those who live by the sword are shot by those who don't. |
Inverter Size
FOR $55.00 UDS you can my a PW-70A which takes 12v dc and has all the
output for you computer..look at: http://www.logicsupply.com/product_i...roducts_id/118 I've been running only for 4 months. Hanz Jim Richardson wrote: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 30 Dec 2003 10:32:28 -0800, Dan wrote: "Fred Miller" wrote in message ... Slightly Off topic but I know someone here can answer the question. I am trying to run a Dell Inspiron 5100 in my truck using a small inverter but all I do is blow fuses in the truck. This is a 6 month old Chev 1500 in excellent condition. My "brick" 110 V power supply reads: AC 100-240 V - 103-109 VA 50-60Hz DC 20 V 4.5 A What size inverter in watts do I need to use with this power supply? Can a cigar lighter outlet supply the required power? TIA for your help. Whether in a truck or a boat, it's inefficient to convert DC to AC back to DC. You'd be better off powering a tower or laptop computer directly from the DC off the vehicle. A trip to Radio Shack should provide all the parts needed. An AT power supply for a tower computer has +12V, -12V, +5V, -5V, and ground. For the +12V and -12V, you will need to filter and regulate the DC feed from your battery bank. The +5V and -5V can be derived from your filtered 12V side, just step the voltage down via a stepdown transformer and regulate it. Make sure to filter the ground as well or gremlins will get your electronics. Now take the wires from your existing PC power supply and connect them to your new power supply. This is overly simplified, but I think the whole project can be built from schematics found in the Radio Shack project books. Laptops are a little bit trickier. Find the voltage rating of the battery, then step the 12V DC of the vehicle to the proper voltage. The tricky part is determining if the voltage regulator is built into the battery or the laptop itself. You may have to make the voltage regulator yourself. If you don't need the regulator, connect your new power supply to the battery contact pads on the laptop. Just remember that you will definately void any warranty doing this. Dan Schiro M/V Sea Ranch Pensacola Sail and Power Squadron In order to use a transformer to step the voltage down, you must by definition be using AC. A transformer doesn't work with a DC level. Rather than go to the hassle of designing and building your own powersupplies, you can buy std AT style supplies that take 12VDC as an input, but usually in limited power forms, don't try powering your 500W game monster machine from one. Expect to pay $200 and up for one. For the laptop, most manufacturers make a 12V car powersupply as an option. If not, then Targus among others, will happily sell you one. The downside to low voltage DC of course, is the I2R losses in the cables, 120VAC may lose some in the translation from DC-AC, but it has the advantage of low loss with relatively small gauge wire. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQE/8meQd90bcYOAWPYRAuUoAKCkpe7G1QMqI69rHIY/NDsUMufRMwCg35tZ uQMzGFjAHt6OJ/BpercEcYM= =jt/b -----END PGP SIGNATURE----- |
Inverter Size
FOR $55.00 UDS you can my a PW-70A which takes 12v dc and has all the
output for you computer..look at: http://www.logicsupply.com/product_i...roducts_id/118 I've been running only for 4 months. Hanz Jim Richardson wrote: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 30 Dec 2003 10:32:28 -0800, Dan wrote: "Fred Miller" wrote in message ... Slightly Off topic but I know someone here can answer the question. I am trying to run a Dell Inspiron 5100 in my truck using a small inverter but all I do is blow fuses in the truck. This is a 6 month old Chev 1500 in excellent condition. My "brick" 110 V power supply reads: AC 100-240 V - 103-109 VA 50-60Hz DC 20 V 4.5 A What size inverter in watts do I need to use with this power supply? Can a cigar lighter outlet supply the required power? TIA for your help. Whether in a truck or a boat, it's inefficient to convert DC to AC back to DC. You'd be better off powering a tower or laptop computer directly from the DC off the vehicle. A trip to Radio Shack should provide all the parts needed. An AT power supply for a tower computer has +12V, -12V, +5V, -5V, and ground. For the +12V and -12V, you will need to filter and regulate the DC feed from your battery bank. The +5V and -5V can be derived from your filtered 12V side, just step the voltage down via a stepdown transformer and regulate it. Make sure to filter the ground as well or gremlins will get your electronics. Now take the wires from your existing PC power supply and connect them to your new power supply. This is overly simplified, but I think the whole project can be built from schematics found in the Radio Shack project books. Laptops are a little bit trickier. Find the voltage rating of the battery, then step the 12V DC of the vehicle to the proper voltage. The tricky part is determining if the voltage regulator is built into the battery or the laptop itself. You may have to make the voltage regulator yourself. If you don't need the regulator, connect your new power supply to the battery contact pads on the laptop. Just remember that you will definately void any warranty doing this. Dan Schiro M/V Sea Ranch Pensacola Sail and Power Squadron In order to use a transformer to step the voltage down, you must by definition be using AC. A transformer doesn't work with a DC level. Rather than go to the hassle of designing and building your own powersupplies, you can buy std AT style supplies that take 12VDC as an input, but usually in limited power forms, don't try powering your 500W game monster machine from one. Expect to pay $200 and up for one. For the laptop, most manufacturers make a 12V car powersupply as an option. If not, then Targus among others, will happily sell you one. The downside to low voltage DC of course, is the I2R losses in the cables, 120VAC may lose some in the translation from DC-AC, but it has the advantage of low loss with relatively small gauge wire. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQE/8meQd90bcYOAWPYRAuUoAKCkpe7G1QMqI69rHIY/NDsUMufRMwCg35tZ uQMzGFjAHt6OJ/BpercEcYM= =jt/b -----END PGP SIGNATURE----- |
Inverter Size
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Hash: SHA1 On Wed, 31 Dec 2003 06:25:43 -0500, hanz wrote: FOR $55.00 UDS you can my a PW-70A which takes 12v dc and has all the output for you computer..look at: http://www.logicsupply.com/product_i...roducts_id/118 I've been running only for 4 months. Hanz That will work fine, provided your power requirements are 100W Jim Richardson wrote: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 30 Dec 2003 10:32:28 -0800, Dan wrote: "Fred Miller" wrote in message ... Slightly Off topic but I know someone here can answer the question. I am trying to run a Dell Inspiron 5100 in my truck using a small inverter but all I do is blow fuses in the truck. This is a 6 month old Chev 1500 in excellent condition. My "brick" 110 V power supply reads: AC 100-240 V - 103-109 VA 50-60Hz DC 20 V 4.5 A What size inverter in watts do I need to use with this power supply? Can a cigar lighter outlet supply the required power? TIA for your help. Whether in a truck or a boat, it's inefficient to convert DC to AC back to DC. You'd be better off powering a tower or laptop computer directly from the DC off the vehicle. A trip to Radio Shack should provide all the parts needed. An AT power supply for a tower computer has +12V, -12V, +5V, -5V, and ground. For the +12V and -12V, you will need to filter and regulate the DC feed from your battery bank. The +5V and -5V can be derived from your filtered 12V side, just step the voltage down via a stepdown transformer and regulate it. Make sure to filter the ground as well or gremlins will get your electronics. Now take the wires from your existing PC power supply and connect them to your new power supply. This is overly simplified, but I think the whole project can be built from schematics found in the Radio Shack project books. Laptops are a little bit trickier. Find the voltage rating of the battery, then step the 12V DC of the vehicle to the proper voltage. The tricky part is determining if the voltage regulator is built into the battery or the laptop itself. You may have to make the voltage regulator yourself. If you don't need the regulator, connect your new power supply to the battery contact pads on the laptop. Just remember that you will definately void any warranty doing this. Dan Schiro M/V Sea Ranch Pensacola Sail and Power Squadron In order to use a transformer to step the voltage down, you must by definition be using AC. A transformer doesn't work with a DC level. Rather than go to the hassle of designing and building your own powersupplies, you can buy std AT style supplies that take 12VDC as an input, but usually in limited power forms, don't try powering your 500W game monster machine from one. Expect to pay $200 and up for one. For the laptop, most manufacturers make a 12V car powersupply as an option. If not, then Targus among others, will happily sell you one. The downside to low voltage DC of course, is the I2R losses in the cables, 120VAC may lose some in the translation from DC-AC, but it has the advantage of low loss with relatively small gauge wire. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQE/8meQd90bcYOAWPYRAuUoAKCkpe7G1QMqI69rHIY/NDsUMufRMwCg35tZ uQMzGFjAHt6OJ/BpercEcYM= =jt/b -----END PGP SIGNATURE----- -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQE/8y7+d90bcYOAWPYRAqSDAJ9JDBhAt/1MvskrvEcIZeAmDVCv1wCfdPAW isMKA9pMKSVoob5g2swpdSE= =Sf7n -----END PGP SIGNATURE----- -- Jim Richardson http://www.eskimo.com/~warlock We aim to please. Ourselves, mostly, but we do aim to please. Anthony DeBoer |
Inverter Size
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Hash: SHA1 On Wed, 31 Dec 2003 06:25:43 -0500, hanz wrote: FOR $55.00 UDS you can my a PW-70A which takes 12v dc and has all the output for you computer..look at: http://www.logicsupply.com/product_i...roducts_id/118 I've been running only for 4 months. Hanz That will work fine, provided your power requirements are 100W Jim Richardson wrote: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 30 Dec 2003 10:32:28 -0800, Dan wrote: "Fred Miller" wrote in message ... Slightly Off topic but I know someone here can answer the question. I am trying to run a Dell Inspiron 5100 in my truck using a small inverter but all I do is blow fuses in the truck. This is a 6 month old Chev 1500 in excellent condition. My "brick" 110 V power supply reads: AC 100-240 V - 103-109 VA 50-60Hz DC 20 V 4.5 A What size inverter in watts do I need to use with this power supply? Can a cigar lighter outlet supply the required power? TIA for your help. Whether in a truck or a boat, it's inefficient to convert DC to AC back to DC. You'd be better off powering a tower or laptop computer directly from the DC off the vehicle. A trip to Radio Shack should provide all the parts needed. An AT power supply for a tower computer has +12V, -12V, +5V, -5V, and ground. For the +12V and -12V, you will need to filter and regulate the DC feed from your battery bank. The +5V and -5V can be derived from your filtered 12V side, just step the voltage down via a stepdown transformer and regulate it. Make sure to filter the ground as well or gremlins will get your electronics. Now take the wires from your existing PC power supply and connect them to your new power supply. This is overly simplified, but I think the whole project can be built from schematics found in the Radio Shack project books. Laptops are a little bit trickier. Find the voltage rating of the battery, then step the 12V DC of the vehicle to the proper voltage. The tricky part is determining if the voltage regulator is built into the battery or the laptop itself. You may have to make the voltage regulator yourself. If you don't need the regulator, connect your new power supply to the battery contact pads on the laptop. Just remember that you will definately void any warranty doing this. Dan Schiro M/V Sea Ranch Pensacola Sail and Power Squadron In order to use a transformer to step the voltage down, you must by definition be using AC. A transformer doesn't work with a DC level. Rather than go to the hassle of designing and building your own powersupplies, you can buy std AT style supplies that take 12VDC as an input, but usually in limited power forms, don't try powering your 500W game monster machine from one. Expect to pay $200 and up for one. For the laptop, most manufacturers make a 12V car powersupply as an option. If not, then Targus among others, will happily sell you one. The downside to low voltage DC of course, is the I2R losses in the cables, 120VAC may lose some in the translation from DC-AC, but it has the advantage of low loss with relatively small gauge wire. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQE/8meQd90bcYOAWPYRAuUoAKCkpe7G1QMqI69rHIY/NDsUMufRMwCg35tZ uQMzGFjAHt6OJ/BpercEcYM= =jt/b -----END PGP SIGNATURE----- -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQE/8y7+d90bcYOAWPYRAqSDAJ9JDBhAt/1MvskrvEcIZeAmDVCv1wCfdPAW isMKA9pMKSVoob5g2swpdSE= =Sf7n -----END PGP SIGNATURE----- -- Jim Richardson http://www.eskimo.com/~warlock We aim to please. Ourselves, mostly, but we do aim to please. Anthony DeBoer |
Inverter Size
Jim Richardson wrote in message ...
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 30 Dec 2003 10:32:28 -0800, Dan wrote: "Fred Miller" wrote in message ... Slightly Off topic but I know someone here can answer the question. I am trying to run a Dell Inspiron 5100 in my truck using a small inverter but all I do is blow fuses in the truck. This is a 6 month old Chev 1500 in excellent condition. My "brick" 110 V power supply reads: AC 100-240 V - 103-109 VA 50-60Hz DC 20 V 4.5 A What size inverter in watts do I need to use with this power supply? Can a cigar lighter outlet supply the required power? TIA for your help. Whether in a truck or a boat, it's inefficient to convert DC to AC back to DC. You'd be better off powering a tower or laptop computer directly from the DC off the vehicle. A trip to Radio Shack should provide all the parts needed. An AT power supply for a tower computer has +12V, -12V, +5V, -5V, and ground. For the +12V and -12V, you will need to filter and regulate the DC feed from your battery bank. The +5V and -5V can be derived from your filtered 12V side, just step the voltage down via a stepdown transformer and regulate it. Make sure to filter the ground as well or gremlins will get your electronics. Now take the wires from your existing PC power supply and connect them to your new power supply. This is overly simplified, but I think the whole project can be built from schematics found in the Radio Shack project books. Laptops are a little bit trickier. Find the voltage rating of the battery, then step the 12V DC of the vehicle to the proper voltage. The tricky part is determining if the voltage regulator is built into the battery or the laptop itself. You may have to make the voltage regulator yourself. If you don't need the regulator, connect your new power supply to the battery contact pads on the laptop. Just remember that you will definately void any warranty doing this. Dan Schiro M/V Sea Ranch Pensacola Sail and Power Squadron In order to use a transformer to step the voltage down, you must by definition be using AC. A transformer doesn't work with a DC level. Rather than go to the hassle of designing and building your own powersupplies, you can buy std AT style supplies that take 12VDC as an input, but usually in limited power forms, don't try powering your 500W game monster machine from one. Expect to pay $200 and up for one. For the laptop, most manufacturers make a 12V car powersupply as an option. If not, then Targus among others, will happily sell you one. The downside to low voltage DC of course, is the I2R losses in the cables, 120VAC may lose some in the translation from DC-AC, but it has the advantage of low loss with relatively small gauge wire. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQE/8meQd90bcYOAWPYRAuUoAKCkpe7G1QMqI69rHIY/NDsUMufRMwCg35tZ uQMzGFjAHt6OJ/BpercEcYM= =jt/b -----END PGP SIGNATURE----- Jim, Good catch about the transformers. A simple analog voltage divider would work. |
Inverter Size
Jim Richardson wrote in message ...
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 30 Dec 2003 10:32:28 -0800, Dan wrote: "Fred Miller" wrote in message ... Slightly Off topic but I know someone here can answer the question. I am trying to run a Dell Inspiron 5100 in my truck using a small inverter but all I do is blow fuses in the truck. This is a 6 month old Chev 1500 in excellent condition. My "brick" 110 V power supply reads: AC 100-240 V - 103-109 VA 50-60Hz DC 20 V 4.5 A What size inverter in watts do I need to use with this power supply? Can a cigar lighter outlet supply the required power? TIA for your help. Whether in a truck or a boat, it's inefficient to convert DC to AC back to DC. You'd be better off powering a tower or laptop computer directly from the DC off the vehicle. A trip to Radio Shack should provide all the parts needed. An AT power supply for a tower computer has +12V, -12V, +5V, -5V, and ground. For the +12V and -12V, you will need to filter and regulate the DC feed from your battery bank. The +5V and -5V can be derived from your filtered 12V side, just step the voltage down via a stepdown transformer and regulate it. Make sure to filter the ground as well or gremlins will get your electronics. Now take the wires from your existing PC power supply and connect them to your new power supply. This is overly simplified, but I think the whole project can be built from schematics found in the Radio Shack project books. Laptops are a little bit trickier. Find the voltage rating of the battery, then step the 12V DC of the vehicle to the proper voltage. The tricky part is determining if the voltage regulator is built into the battery or the laptop itself. You may have to make the voltage regulator yourself. If you don't need the regulator, connect your new power supply to the battery contact pads on the laptop. Just remember that you will definately void any warranty doing this. Dan Schiro M/V Sea Ranch Pensacola Sail and Power Squadron In order to use a transformer to step the voltage down, you must by definition be using AC. A transformer doesn't work with a DC level. Rather than go to the hassle of designing and building your own powersupplies, you can buy std AT style supplies that take 12VDC as an input, but usually in limited power forms, don't try powering your 500W game monster machine from one. Expect to pay $200 and up for one. For the laptop, most manufacturers make a 12V car powersupply as an option. If not, then Targus among others, will happily sell you one. The downside to low voltage DC of course, is the I2R losses in the cables, 120VAC may lose some in the translation from DC-AC, but it has the advantage of low loss with relatively small gauge wire. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQE/8meQd90bcYOAWPYRAuUoAKCkpe7G1QMqI69rHIY/NDsUMufRMwCg35tZ uQMzGFjAHt6OJ/BpercEcYM= =jt/b -----END PGP SIGNATURE----- Jim, Good catch about the transformers. A simple analog voltage divider would work. |
Inverter Size
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Inverter Size
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Inverter Size
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Hash: SHA1 On 31 Dec 2003 17:37:47 -0800, Dan wrote: Jim Richardson wrote in message snip In order to use a transformer to step the voltage down, you must by definition be using AC. A transformer doesn't work with a DC level. Rather than go to the hassle of designing and building your own powersupplies, you can buy std AT style supplies that take 12VDC as an input, but usually in limited power forms, don't try powering your 500W game monster machine from one. Expect to pay $200 and up for one. For the laptop, most manufacturers make a 12V car powersupply as an option. If not, then Targus among others, will happily sell you one. The downside to low voltage DC of course, is the I2R losses in the cables, 120VAC may lose some in the translation from DC-AC, but it has the advantage of low loss with relatively small gauge wire. Jim, Good catch about the transformers. A simple analog voltage divider would work. The down side to simple voltage devider, is that you have to throw away a lot of power, whether you are doing it with a linear regulator, a dropping resistor, or a zener diode, any voltage you don't "use" get's wasted as heat at the rate of "unwanted volts" X amp draw. Nasty if you are powering a high draw system like a 5VDC logic board, with 12VDC. In the case of a computer, your best choice really is either an inverter, or a DC-DC switching powersupply built for the task. Either, well done, is going to draw less total power, (by wasting less) than a linear regulator or voltage divider setup. Unfortunately, they are going to have other problems which have to be dealt with, most importantly, being switching noise. Which is pretty critical in the case of a system on a boat with comm gear. You'll need to take the relevent precautions to prevent noise coming in the power supply of the radios. On the other hand, if you have the space and inclination, you could allways build a motor-generator converter :) although they are typically used in situations where you are changing a *lot* of power, and number of phases and frequencies too.. but you could do it I suppose :) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQE/9M88d90bcYOAWPYRAiMUAKCF/TUfonjiqRlgaHzuYlPvu2G0dgCeJI3p l7AchR0x3QgLW08NoMPniAw= =qVQ+ -----END PGP SIGNATURE----- -- Jim Richardson http://www.eskimo.com/~warlock "Even if you can deceive people about a product through misleading statements, sooner or later the product will speak for itself." - Hajime Karatsu |
Inverter Size
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1 On 31 Dec 2003 17:37:47 -0800, Dan wrote: Jim Richardson wrote in message snip In order to use a transformer to step the voltage down, you must by definition be using AC. A transformer doesn't work with a DC level. Rather than go to the hassle of designing and building your own powersupplies, you can buy std AT style supplies that take 12VDC as an input, but usually in limited power forms, don't try powering your 500W game monster machine from one. Expect to pay $200 and up for one. For the laptop, most manufacturers make a 12V car powersupply as an option. If not, then Targus among others, will happily sell you one. The downside to low voltage DC of course, is the I2R losses in the cables, 120VAC may lose some in the translation from DC-AC, but it has the advantage of low loss with relatively small gauge wire. Jim, Good catch about the transformers. A simple analog voltage divider would work. The down side to simple voltage devider, is that you have to throw away a lot of power, whether you are doing it with a linear regulator, a dropping resistor, or a zener diode, any voltage you don't "use" get's wasted as heat at the rate of "unwanted volts" X amp draw. Nasty if you are powering a high draw system like a 5VDC logic board, with 12VDC. In the case of a computer, your best choice really is either an inverter, or a DC-DC switching powersupply built for the task. Either, well done, is going to draw less total power, (by wasting less) than a linear regulator or voltage divider setup. Unfortunately, they are going to have other problems which have to be dealt with, most importantly, being switching noise. Which is pretty critical in the case of a system on a boat with comm gear. You'll need to take the relevent precautions to prevent noise coming in the power supply of the radios. On the other hand, if you have the space and inclination, you could allways build a motor-generator converter :) although they are typically used in situations where you are changing a *lot* of power, and number of phases and frequencies too.. but you could do it I suppose :) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQE/9M88d90bcYOAWPYRAiMUAKCF/TUfonjiqRlgaHzuYlPvu2G0dgCeJI3p l7AchR0x3QgLW08NoMPniAw= =qVQ+ -----END PGP SIGNATURE----- -- Jim Richardson http://www.eskimo.com/~warlock "Even if you can deceive people about a product through misleading statements, sooner or later the product will speak for itself." - Hajime Karatsu |
Inverter Size
this might be what someone else was referring to
kit costs about $US32 http://user.gru.net/n4uau/kits/Volta...e/apvb-kit.htm which isnt as cheap as this which i just bought for $US17.90 http://www.compgeeks.com/additem.asp?invtid=SDR-70W On Fri, 26 Dec 2003 16:45:01 +0000, Fred Miller wrote: Slightly Off topic but I know someone here can answer the question. I am trying to run a Dell Inspiron 5100 in my truck using a small inverter but all I do is blow fuses in the truck. This is a 6 month old Chev 1500 in excellent condition. My "brick" 110 V power supply reads: AC 100-240 V - 103-109 VA 50-60Hz DC 20 V 4.5 A What size inverter in watts do I need to use with this power supply? Can a cigar lighter outlet supply the required power? TIA for your help. |
Inverter Size
this might be what someone else was referring to
kit costs about $US32 http://user.gru.net/n4uau/kits/Volta...e/apvb-kit.htm which isnt as cheap as this which i just bought for $US17.90 http://www.compgeeks.com/additem.asp?invtid=SDR-70W On Fri, 26 Dec 2003 16:45:01 +0000, Fred Miller wrote: Slightly Off topic but I know someone here can answer the question. I am trying to run a Dell Inspiron 5100 in my truck using a small inverter but all I do is blow fuses in the truck. This is a 6 month old Chev 1500 in excellent condition. My "brick" 110 V power supply reads: AC 100-240 V - 103-109 VA 50-60Hz DC 20 V 4.5 A What size inverter in watts do I need to use with this power supply? Can a cigar lighter outlet supply the required power? TIA for your help. |
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