Power supply for magnetron and the like loads

Details Power supply for magnetron and the like loads Power supply for magnetron and the like loads

G - Physics

05

F

323/4, 323/9, 32

G05F 1/44 (2006.01) H01J 23/34 (2006.01)

Patent

CA 1162983

RD-11045 POWER SUPPLY FOR MAGNETRON AND THE LIKE LOADS ABSTRACT OF THE DISCLOSURE A flyback-type high-frequency, high-voltage power supply for energizing a self-rectifying load, such as a magnetron microwave power generator for a microwave oven and the like. A switching device is connected in series with a primary winding of a transformer to provide pulses of energy to a self-resonant circuit at the transformer secondary winding. The self-resonant circuit includes the electrical capacitance of the load connected across the transformer secondary winding. The load conducts only for unipolarity excitation exceeding a minimum magnitude. A clamping diode is positioned in parallel with the switching device, at the transformer primary winding, to protect the switching device from reverse-voltage effects. A high- voltage rectifier is not required in this relatively light-weight power supply.

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