| 摘要 |
A power control apparatus for electric cookers is disclosed, which comprises: an input unit, for setting parameters of temperature control, power control and timing control, etc.; an output unit, for displaying parameters of temperature, power and timing, etc.; a micro controller unit (MCU), having a programmer pulse generator (PPG) and at least an analog/digital converter built therein, being used for processing the inputs of the input unit and controlling the outputs to the output unit while detecting signals of synchronization, oscillation, 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 (IGBT), for driving the exciter-coil circuit; 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 a command can be inputted externally to the MCU for restarting or stopping the output of the PPG; and the PPG is capable of outputting pulses of programmable pulse width, being programmed by a software in view of power control and the protection of power control apparatus.
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