Hi all,
Is there a simple way to prevent backfeed on a traditional relay triggered by GND? Entire circuit is 12V.
I have tried a 1N4004 tied over the coil (85,86), that didn’t work. I also tried the same diode (in both polarities) on negative wire only with no success.
The only thing that dropped the voltage down was a 1K resistor tied from GND to the negative of the coil. At this point though, it is drawing (small) unnecessary current.
Any thoughts on that issue?
Also, would the solution be able to be used whether the relay was positive or negative triggered? I want my project to be versatile to be triggered either way, without the voltage backfeed.
Thanks in advance