Flasher with intriguing circuitry
Added 2022-10-02 03:47:52 +0000 UTCThis module uses a very unexpected component to trigger a MOSFET for flashing 12V lights with just two wires.
I was actually quite pleased to see such a retro component is not just still available, but has made the transition to an SMD package.
Comments
Not sure its current rating. It has very low quiescent current of its own.
Big Clive
2022-10-05 22:01:46 +0000 UTCits so weird... i guess if your mom used basic stamps and my gran used 555s, then everyone's great-grandma had to dig into the RC time constant to get anything done. what kind of power consumption does it rate at?how lossy is the blinky?
Joel Murphy
2022-10-05 04:08:57 +0000 UTCGreat for prop making I suppose, just a simple way to make a flashing light at any speed you want without any noise.
Matt Tester
2022-10-02 22:35:14 +0000 UTCFascinating; I wasn't familiar with PUTs. Great explanation!
Charles
2022-10-02 22:06:34 +0000 UTCIt needs to bootstrap its internal supply, for which there will be a minimum load. Incandescent car indicator bulbs were 6W, don't know what the LED equivalent is. But that 1k shunt is a mere 144mW.
Mike Page
2022-10-02 12:50:42 +0000 UTCThat was a very interesting video, and such a simple, yet very useful use of components.
Mike Hughes
2022-10-02 08:32:33 +0000 UTCThat may be the "can" bit. The Chinese sellers associate canbus compatibility with parallel resistors in their smoking hot LED lamps.
Big Clive
2022-10-02 05:52:05 +0000 UTCInteresting that it doesn’t work for its intended purpose.
Lostngone
2022-10-02 04:29:35 +0000 UTCInteresting little circuit. Most of the electronic flashers also have a mechanical relay or something to ‘click’ while in use. At least in my experience here in the US.
Derek Smith
2022-10-02 04:14:36 +0000 UTC
