ELECTRONICS PUSH BUTTON SWITCH - When the circuit power is turned on, C1 capacitor charges via the two 470k resistors. When the switch is pressed, the voltage on C1 is passed to directly Q3 to turn it on. This turns on Q1 and the voltage developed across R7 will keep Q1 transistor turned on when the button is released. Q2 is also turned on during this time and it discharges the
Sunday, April 8, 2012
ELECTRONICS PUSH BUTTON SWITCH
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