| 摘要 |
A power supply circuit for a continuous wave magnetron provides selectively adjustable microwave power levels that are stable at each level. The unregulated direct voltage supplied to the magnetron cathode is combined with an additional voltage derived from a common alternating current source to provide a total direct current which passes through the electromagnet coil of the magnetron. Variations in the power source are compensated by the variations of the added current in the coil to provide stable magnetron power at each level. The circuit providing the added current to the coil includes a simple rectifier, filter, zener diode and series resistor arrangement with a switch for selecting different diode, resistor and voltage combinations.
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