Phase Fired Controllers

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.

Read more about Phase Fired Controllers:  Overview

Famous quotes containing the words phase and/or fired:

    This is certainly not the place for a discourse about what festivals are for. Discussions on this theme were plentiful during that phase of preparation and on the whole were fruitless. My experience is that discussion is fruitless. What sets forth and demonstrates is the sight of events in action, is living through these events and understanding them.
    Doris Lessing (b. 1919)

    See where she comes, and smell how all the street,
    Breathes vineyards and pomegranates: oh, how sweet!
    As a fired altar is each stone,
    Perspiring pounded cinnamon.
    The phoenix-nest,
    Built up of odours, burneth in her breast.
    Who therein would not consume
    His soul to ash-heaps in that rich perfume,
    Robert Herrick (1591–1674)