H - Electricity – 05 – B
Patent
H - Electricity
05
B
327/2.5
H05B 6/64 (2006.01) F24C 7/02 (2006.01)
Patent
CA 1053760
ABSTRACT OF THE DISCLOSURE A microwave magnetron operating circuit includes a high-leakage reactance transformer having a secondary winding, a capacitor connected in series with the secondary winding and means connecting the series combination of capacitor and secondary winding across the heater-cathode and the anode terminal of a magnetron. A controlled semiconductor switch, such as a triac, is connected electrically in shunt of the magnetron. Control means are provided to operate the triac to its current conducting state, so as to conduct current in shunt of the magnetron. The control means includes a positionable control member, accessible to the user, for varying the time at which the controlled semicon- ductor device is placed in its electrically conductive state, so as to permit the user to adjust or set the power supplied to the magnetron to various different power levels.
268943
Burke Robert V.
Hester Thomas E.
LandOfFree
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