Patent ID: 7355152

Claim:
A power control method for electric cookers, adapted for controlling the processes of a micro controller unit (MCU) built in a power control apparatus, which comprises the step of: (1) using one comparator as a signal source for providing signals to directly control the restart and output of a programmable pulse generator (PPG) arranged in the MCU by comparing two synchronous signals, while using a timer and a prescaler for timing and controlling a specific output time of the PPG, wherein the setting of the timer and the prescaler is programmed by a software, and the output of the PPG is stopped as soon as the timing of the specific output time is up; (2) using the other comparator to provide a signal for directly stopping the output of the PPG by comparing a response generated when an instantaneous electric current passing an insulated gate bioolar transistor (IGBT) is larger than a specific value with a reference voltage; (3) controlling the output time of the PPG by using timer cooperating with the prescaler; and (4) using a control element for disabling/enabling the two comparators, and for setting up the timer and the prescaler, and for restarting a disable/enable control, and for stopping the disable/enable control, and for controlling the output of the PPG with respect to the software, and for detecting the status of the PPG.