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Troubles with shorepower
Larry wrote:
"Eisboch" wrote in news 
the impedance of the switching power supply appears as a dead short to ground, tripping the GFI type breaker. There's nothing wrong with the circuit, it's just a characteristic of the supply type. The input of any switching power supply is merely a full wave bridge rectifier and some LARGE electrolytic capacitors, which are what causes the huge surge when you plug them in...charging those caps. They use large caps for a reason.....to reduce the effects of powerline pulses, especially OFF pulses that blink your lights. The large caps can hold up the output DC for several hundred milliseconds during those brief power "blinks". Unfortunately, the idiots are trying to see how few parts they can make them out of so leave out any surge-reducing varistors or even low value surge resistors from the primary circuit that would stop the huge pulse and plug-in-arcing. Larry Wouldn't adding something like a starting capacitor fix that? |
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