Patent ID: 7271372

Claim:
A power control apparatus for a electric cooker, comprising: an input unit, for setting parameters of temperature control, power control and timing control; an output unit, for displaying parameters of temperature, power and timing; a micro controller unit (MCU), being used for processing the inputs of the input unit and controlling the outputs to the output unit while detecting signals of synchronization (SYN), oscillation (OS), over-voltage (OV), and over-current (OC); a power circuit, for providing power to the power control apparatus; an exciter-coil circuit, for adjusting the power of the power control apparatus; an output circuit of insulated gate bipolar transistor, for driving the exciter-coil circuit; and a drive circuit of insulated gate bipolar transistor (IGBT), being used as voltage transformation interface between the MCU and the output circuit of insulated gate bipolar transistor (IGBT) while being used for driving the output circuit of insulated gate bipolar transistor (IGBT), wherein the micro controller unit further comprises: at least an analog/digital converter; a programmable pulse generator (PPG), comprising at least a comparator, a timer, a prescaler, and a control element; and a processing core, for controlling the control unit of the programmable pulse generator, wherein the MCU is configured to be externally commanded to restart or stop the power output of the PPG while enabling the pulse width of pulses generated by the PPG to be programmed by software for power control and safety.