backfeed

[b1mmuo27]

I am using a standard auto relay 85,86,87a,30,87 which is swithing on a smaller pcb latching relay. I know the reistance in the auto relay is about 70 ohms. The resistance in the pcb coil is about 400 ohms. The smaller relay is being switched on again by back feed through these bigger relays. They are not being affected by this. Just the smaller relays. Is their something I can do to make these more resistant to this backfeed?

 

[Analog]

Can you use Diode isolation?

 

[dknguyen]

BTW, the common term is feedback in English, rather than backfeed.

 

[Russlk]

You need to post the circuit, it does not make any sense that there is feedback.

 

[b1mmuo27]

Maybe out west you call it feedback, but an electrician in Ontario would call backfeed.

 

[Roff]

Maybe out west you call it feedback, but an electrician in Ontario would call backfeed.

I can understand why you would call it backfeed.
Feedback, backfeed - we still need a schematic - or would that be a maticsche?