H - Electricity – 05 – B
Patent
H - Electricity
05
B
327/2.51
H05B 6/68 (2006.01) H05B 6/66 (2006.01)
Patent
CA 1311806
9D-RG-16405 MAGNETRON WITH MICROPROCESSOR BASED FEEDBACK CONTROL ABSTRACT OF THE DISCLOSURE A microwave oven uses a full wave full bridge inverter for supplying energy to a cooking magnetron by way of a power transformer. The inverter is controlled by a microprocessor which acts upon a control circuit having an oscillator. Two feedback loops are provided for controlling the operation of the magnetron. A relatively slow feedback loop uses the microprocessor to adjust inverter operation in order to stabilize the magnetron power output. A relatively fast feedback loop senses current passing through a primary of a power transformer. A signal based on the sensed current is provided to a comparator and compared to a reference. If the signal from the current sensor indicates that the current has become excessive, the comparator generates a shutdown signal which will stop the generation of gating pulses to the transistor switches of the inverter. The relatively fast feedback loop protects the circuitry against sudden current increases which might otherwise damage components before the microprocessor would have time to adjust the inverter operation.
586019
Company General Electric
Craig Wilson And Company
LandOfFree
Magnetron with microprocessor based feedback control does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magnetron with microprocessor based feedback control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetron with microprocessor based feedback control will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1225772