Sep 17, 2023 · Using a standard Non Latching relay, here is a latching circuit that seals in the relay with the D2 diode and a second set of relay NO contacts. SW1 can be a momentary NO button but once …

Feb 9, 2024 · I have a simple question that I cannot, for the life of me, solve. The premise is simple: I need to turn ON/LATCHING relay using a momentary programmed switch that closes and supplies …

May 20, 2025 · 12V Latching Relay with 12V Momentary Input highhp May 20, 2025 Search Forums New Posts 1 2 Next

Dec 17, 2024 · If yes, this can be done either with a standard relay and an electronic latch circuit, or a pulse-forming circuit and a latching relay. If you want to use a latching relay, then it must have two …

Feb 15, 2026 · Hey guys, I need to build up the circuit that : 1/ when main power 5V is connected for the first time, MCU gets 5V (first time autostart). 2/ MCU starts and drive the PMOS switching on by …

Jan 22, 2023 · Hi All, Can I get your opinion on this simple latching circuit? I got it from here (first circuit shown): I need it to power on with a push of the momentary button. and then turn off with another …

Oct 30, 2017 · I want to build a latching push button ON/OFF power switch which turns on by holding the switch for 3 seconds and turns off by holding the switch for 3-5 seconds.

Apr 23, 2011 · With that restriction, I'm leaning towards the discrete parts or a solid state this one from Sharp. Are latching mechanical relays also always pulling power in one state? So the only difference …

Dec 21, 2023 · It's been ages since I drew a FF circuit and even longer since I've debounced a switch. But this is what I was thinking: 1 switch 3 resistors 1 cap 1 NPN BJT 1 chip (CD4013) or equivalent. …

Oct 5, 2023 · A "latching relay" is not an adequate description. I can describe a single input latching relay that works with only one momentary switch input. But it has no means to unlatch. So it meets …