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Low current control of triac speed controller?
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Sylvi:
Hi

I think it should be pointed out that the term "microwsitch" apart from being a brand of switch only refers to the mechanical stroke of the actuator - tiny movement causes the contact to open or close. This in no way reflects on the current rating of the switch. For example, my electric lawn mower has a 15A "microswitch" in its switch housing.

In the OE's application, there is no reason to use house wire or a heavy zip cable to connect the microswitch.

Doh! It just occurred to me that the suggestion of a microswitch is to have a microcontroller do the switching? In that case, an electronic element such as BJT or mosfet would short the gate of the triac, with this element being placed right by the triac. How this device is in turn controlled might be via optoisolator for safety. The opto would also be mounted wherever the triac is and the input to the opto is then only an isolated LE voltage and current - tiny wires with tiny insulation.
PP3331:
Thing is, shorting the gate to A1 does not disable the triac -- and I've verified the pins.
Circlotron:

--- Quote from: PP3331 on December 18, 2018, 02:47:34 am ---Thing is, shorting the gate to A1 does not disable the triac -- and I've verified the pins.

--- End quote ---
I'm more than interested to see how this turns out to be so...
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