| 摘要 |
PURPOSE: An inductive heating cooker using a self-oscillation half-bridge driver IC is provided to reduce a manufacturing cost by simplifying a structure of circuits of an IGBT driving part. CONSTITUTION: An inductive heating cooker using a self-oscillation half-bridge driver IC includes a rectification and smoothing portion(74), an inverter portion(90), an inverter control portion, a micro computer(88), and an inductive heating coil(86). The inverter control portion includes an analog conversion portion(87), an output control portion(4), and a self-oscillation half-bridge driver IC(80). The analog conversion portion(87) converts a digital control signal to an analog signal. The output control portion(4) controls an oscillation frequency by using a variation of resistance between a drain and a source of a field effect transistor. The self-oscillation half-bridge driver IC(80) is formed with an oscillation circuit portion for performing a self-oscillation process and a half-bridge driver portion for outputting a pulse signal to drive two power elements. The half-bridge driver portion includes two push-pull drivers to output the pulse signal.
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