Magnetron power supply

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United States of America Patent

PATENT NO 9390879
APP PUB NO 20130134872A1
SERIAL NO

13809600

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A power supply for a magnetron has a PFC DC voltage source and an HV (High Voltage) converter. The voltage source is mains driven and supplies DC voltage above mains voltage on line, smoothed by capacitor to the HV converter. The latter supplies switched alternating current to transformer. This supplies higher voltage alternating current to a rectifier, in turn supplying the magnetron with high, magnetron powering, anode voltage on line. The DC voltage source has an PFC inductor, which is switched by a transistor switch under control of an integrated circuit. It is the inductor which enables the voltage source to provide a variable DC voltage. An input rectifier is provided for rectifying mains voltage. The output voltage of the voltage source is monitored and fed back to the integrated circuit by a voltage divider.

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Patent Owner(s)

Patent OwnerAddress
CERAVISION LIMITEDTHE MANSION- BLETCHELY PARK- WILTON AVE BLETCHLEY MILTON KEYES MK# 6EB

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lidstrom, Kjell Burea, SE 5 10

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