A number of years ago I saw a wiring diagram for an AC to DC conversion circuit using a bridge rectifier in one of the Train Magazines, using 2 SPDT toggle switches one for AC to DC selection and the other toggle switch for Forward and Reverse selection on the DC side. I have broken wires on my unit and am not sure how to rewire. Does anyone have a wiring schematic for such a circuit as I have long lost the article with the original diagram on it. Any help would be greatly appreciated. Thanks Gary.
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Are you talking a simple bridge rectifier with a polarity reverse switch? I'm pretty sure that the toggle switches would have been DPDT, you'll certainly need that for polarity reversal.
This should be pretty simple to draw up...
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@trains52 posted:A number of years ago I saw a wiring diagram for an AC to DC conversion circuit using a bridge rectifier in one of the Train Magazines, using 2 SPDT toggle switches one for AC to DC selection and the other toggle switch for Forward and Reverse selection on the DC side. I have broken wires on my unit and am not sure how to rewire. Does anyone have a wiring schematic for such a circuit as I have long lost the article with the original diagram on it. Any help would be greatly appreciated. Thanks Gary.
So minor issue- there are ways to wire this but I see some conflict
Edit- John beat me to it!!
Example, you said bridge rectifier but then also said 2 SPDT
I could use individual diodes, not a bridge for half wave, and use a SPDT switch- and get 2 polarities.
That same circuit above using half wave then also leads to easier DC to AC switch use of another SPDT switch.
However, I see a more effective circuit using 2 each DPDT switches and bridge rectifier for both full wave DC both polarities, and the other switch going between AC and DC.- but again, that key point is DPDT switches.
I think the bridge rectifier with full-wave rectification makes a lot more sense, half-wave rectification will create a very noisy running of some DC motors.