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).
A voltage-controlled oscillator is an electronic oscillator whose oscillation frequency is controlled by a voltage input. The applied input voltage determines the instantaneous oscillation frequency.
Relaxation oscillator
…to low frequencies, below audio, they are typically used for applications such as blinking lights (turn signals) and electronic beepers, as well as voltage-controlled oscillators (VCOs), inverters, switching power supplies, dual-slope analog to digital converters, and function generators. The term relaxation oscillator, though…
27 MHz VCXO clock generator IC (TLSI T73227), used in a DVB-T set-top box.
The Korg Monologue is a monophonic synthesizer with two VCOs.