Patent ID: 7548052

Claim:
An AC power source controller, comprising: an input side; an output side; a power source controlling interface, which is electrically connected between said input and output sides for controlling the power source output; and a phase modulator, which is electrically connected to the input side of said power source controlling interface; further including: a microcontroller unit, which is electrically connected to said power source controlling interface for outputting control orders; an encoding DIP switch, which is electrically connected to said microcontroller unit for setting different system groups; a control signal receiving module, which is electrically connected to said microcontroller unit for receiving control signals of different power source outputting modes; and a signal detecting interface, which is electrically connected between said input side of power source and said input side of microcontroller unit for detecting phase signals input into said microcontroller unit to calculate the parameter of time delay Dn; wherein, according to the detected phase variation of input power source and based upon a chosen conducting phase Pn, said phase modulator automatically adjusts the time delay Dn between the conducting and cutting off orders sent to the AC power source controlling interface, thus power source output being accurately controlled.