One of the shortcomings of the DIAC trigger diode circuit is that the timing capacitor (C1) does not automatically discharge to zero volts when it triggers. In fact, the residual voltage is an unknown ...
We are all familiar with the snap-on phenomenon of inexpensive TRIAC dimmers that are often used to control incandescent lamps –turn the pot until the light comes (snaps) on and then reduce the ...
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