MONITOR POWER SAVER FOR COMPUTERS


Posted on Feb 4, 2014

The circuit monitors PC keyboard activity through five-pin DIN connector J1. When the user presses a key, the keyboard sends a series of negative-going pulses on pin 2. In conjunction with Q1 and C3, the op amp essentially functions as an integrator, which stretches the continually varying periods of the input pulses to a relatively constant period with a..


MONITOR POWER SAVER FOR COMPUTERS
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