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Bret Cahill wrote:
> This must be a really really common problem and the only reason it is
> difficult to find on youtube is the wrong search terms:
> If a device has a power on button latch switch and you want it to turn
> on and off like a light bulb, i. e., when the power supply is plugged
> in or a relay connects the power, or for solar, when the sun comes up,
> is it a common solution to run a wire from the power supply through a
> cap and maybe a large drain resister in parallel then to one side of
> the latch switch?
don't follow your description here at all. Are you just trying to
figure out a "simple" way to pulse a latching relay's coil long enough
for it to set?
Note that in order to reset a latching relay, one normally needs to
drive a secondary coil, or reverse the current flow in a single coil
model; so if I'm understanding your question properly, you're never
actually going to "unlatch" the relay.
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