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Single button latching circuit without blinking? Answered

Can you provide a schematic of a latching circuit that doesnt blink when the switch is press hold.
Its an issue in this video(https://www.youtube.com/watch?v=hFwY9jfv6uU )and this video (https://www.youtube.com/watch?v=Foc9R0dC2iI) that if you hold the switch it will blink.
Less components as possible. Thanks for helping have a great day.

3 Replies

ggom20 (author)2017-12-10

search for flip-flop and then think about it.

Another classic is relay based and much in use ;

it starts and stop dangerous machines and will get in stop state

in case of power failure.


The schematic is awfull , but right

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iceng (author)2017-12-09

You want a make before break switch which could be simulated with two latch relays or a rotary slide switch..

But then you may want to play with a GTO gate-turn-off-SCR or simply build one out of two opposing by polar transistors..

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iceng (author)iceng2017-12-09

See the construct using a PNP & NPN


Click the pic to see the whole image

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