Comparator
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In electronics, a comparator is a device that compares two voltages or currents and outputs a digital signal indicating which is larger. It has two analog input terminals V + and V − and one binary di
LM393 dual comparator, a common comparator integrated circuit chip, shown on a circuit board
A precision calibration comparator
Relaxation oscillator
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In electronics, a relaxation oscillator is a nonlinear electronic oscillator circuit that produces a nonsinusoidal repetitive output signal, such as a triangle wave or square wave. The circuit consist
The blinking turn signal on some motor vehicles is generated by a simple relaxation oscillator powering a relay.
A vacuum tube Abraham-Bloch multivibrator relaxation oscillator, France, 1920 (small box, left). Its harmonics are being used to calibrate a wavemeter (center).