IN4001 cockpit accessoryJohn Cooper wrote:I'd better upgrade my 1N4001s

IN4001 cockpit accessoryJohn Cooper wrote:I'd better upgrade my 1N4001s
John Cooper wrote:I guess I'd better upgrade my 1N4001s then, shouldn't I.Chris Zavatson wrote:... the back EMF current on these motors ranges from about 10 to 60A depending on the load at the time power is pulled.
John Cooper wrote:I guess I'd better upgrade my 1N4001s then, shouldn't I.
No, they''re from the motor wires to ground and have been working fine so far. I know this because my transition light LED is hooked to those wires (through isolation diodes and fuses) and if the snubbing diodes are not there, the transition LED will burn out due to the counter EMF spike. (Ask me how I know.) Actually, I think my snubbing diodes are 1N4007, but I'll upgrade them for more current anyway.Chris Zavatson wrote:I assume you have those on the relay coils.
John Cooper wrote:No, they''re from the motor wires to ground and have been working fine so far. I know this because my transition light LED is hooked to those wires (through isolation diodes and fuses) and if the snubbing diodes are not there, the transition LED will burn out due to the counter EMF spike. (Ask me how I know.) Actually, I think my snubbing diodes are 1N4007, but I'll upgrade them for more current anyway.Chris Zavatson wrote:I assume you have those on the relay coils.
Close. The diodes and bigazz MOVs are connected to the relay outputs. I decided decades ago not to use those 1930's technology, heavy, solenoids. I'm still using the Bosch relays. (Diodes not shown but they are in parallel with the MOVs.Chris Zavatson wrote:Are you hooked up directly to the motor wires?
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