I believe there is a simple circuit, that uses a single non latching push button (1 or more pole possible?) to toggle 12V relay. 1 press - ON state, another press - OFF state and so on.

I can't find it anywhere, I searched over the internet as much as I could.

  • \$\begingroup\$ Does this answer your question? \$\endgroup\$ Mar 25 at 3:21
  • \$\begingroup\$ Easy and reliable is using one D flip-flop. RC debounced button signal connected to CLK input. Q_neg connected to D input. \$\endgroup\$ Mar 25 at 3:39
  • \$\begingroup\$ Rather than using a latching circuit to drive a relay would you consider a latching relay? They're pulse operated and only use power when they change states. \$\endgroup\$
    – K H
    Mar 25 at 4:56

Maybe this will help you

Very simple circuit. Its key link is the popular NE555 timer chip. It is she who registers the keystroke and sets the output to either logical 1 or 0. Button S1 - any button to close without latching

Source: https://sdelaysam-svoimirukami.ru/4282-vklyuchenie-i-vyklyuchenie-nagruzki-odnoy-knopkoy.html


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