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Lots of electrical ignorance here
Some Rube posted that current from an alternator never goes to zero.
WRONG. 1) an alternator produces alternating current. 2) alternating current alternates directions. 3) every time the current reverses, it MUST stop and go to zero. 4) if it did not stop and go to zero it could not reverse - it could not alternate. When you rectify this stop-and-go current through a bridge setup of diodes, all that happens is the direction of the current is is made to flow the same direction via the correct placement of diodes which allow current one way but not the other. However, re-routing the current to all the same direction (DC) does not and cannot eliminate those finite periods of time when the original alternating current stops and reverses directions. This alternating current is produced by the north and south poles lines of flux cutting through a coil of wire. It goes one way, stops between poles, and then goes back the other way. Walk forward, then walk backward. There will be a finite period of time when you're not moving because you have completely stopped when you reversed directions. You can never eliminate the stop. Wilbur Hubbard |
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