Development of compact inverter power supply for microwave oven

The development of a novel inverter power supply for a microwave oven is described. Due to its operation at a high frequency using a fast switching device, an IGBT (insulated-gate bipolar transistor), the power supply has been made light and compact. It weighs about one-fifth of the conventional ferro-resonant unit. Adopting the inverter power supply with a new control IC has made it possible to realize a new microwave oven featuring a power control function and high output power.<
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