Push-Button Relay Latch Circuit With Simple Debounce 2017-06-20

[crutschow]

crutschow submitted a new article:

Push-Button Relay Latch Circuit With Simple Debounce - PB alternate action circuit uses CD4013 FF with simple debounce to control relay (or other load).

Here's a relatively simple circuit to give a latching relay function from a momentary, single-pole (SP) push-button operation.
It includes a simple RC debounce circuit which ignores multiple pulses from a mechanical PB output, avoiding the more complex (RC diode) circuits often used for debounce of the FF clock input from the PB.

The circuit below consists of a CD4013 CMOS FF connected as a toggle latch, controlling a BJT that drives the relay coil.

Debounce (protection against contact...

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[DakLak]

My company makes 'dazzlers' (aka daylight running lights) for motorcycles and we use one of two circuits dependent upon the motorcycle manufacturer.

Both circuits are 'latching'.**broken link removed** They were found on > http://www.mosaic-industries.com/em...n-switch-turn-on/latching-toggle-power-switch <. The circuits perform flawlessly in a very noisy environment.

I can't raise the site at this moment as I am in Indochina and the web site is in the USA.

If you can't get them, send me a PM and I will e-mail them to you. We use Telegram and FB, too.