Heating control system which minimizes AC power line voltage fluctuations

摘要

An electrical heater control system reduces flicker. The system includes an electrical heating system; an AC (alternating current) power source for supplying AC current to the electrical heating system; an AC power control device connected between the electrical heating system and the AC power source for controlling the supply of AC current to the electrical heating system; and a controller unit coupled to the AC power control device for activating the device at zero crossings of the AC power to minimize flicker in AC current supplied to the electrical heating system from the AC power source.