Phase-fired controllers

Thyristor voltage regulated by phase control

Phase control (PFC), also called phase cutting, is a method of pulse-width modulation (PWM) for power limiting, applied to AC voltages. It works by modulating a thyristor, SCR, triac, thyratron, or other such gated diode-like devices into and out of conduction at a predetermined phase of the applied waveform.

单词	Phase angle control
释义	Phase angle control 英语百科 Phase-fired controllers Phase control (PFC), also called phase cutting, is a method of pulse-width modulation (PWM) for power limiting, applied to AC voltages. It works by modulating a thyristor, SCR, triac, thyratron, or other such gated diode-like devices into and out of conduction at a predetermined phase of the applied waveform.
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Phase angle control

Phase-fired controllers