US 2025/0357064 A1 · Control Circuit And Microwave Generation Device

Abstract

A control circuit is applied to the microwave generation device that includes a magnetron (36). The control circuit includes a transformer assembly and a switch portion. The transformer assembly includes a primary winding, a first secondary winding, and a second secondary winding. The primary winding is located at a primary side of the transformer assembly. The first secondary winding and the second secondary winding are located at a secondary side of the transformer assembly. The first secondary winding and a cathode of the magnetron form a filament circuit. The switch portion includes a switch member and a control member. The switch member is located in the filament circuit. The control member is electrically connected to a control winding and configured to control the switch member to turn off or turn on the filament circuit when a current in the control winding changes.

Claims10

Dependent claims

A control circuit, applied to a microwave generation device comprising a magnetron, the control circuit comprising:

a transformer assembly comprising a primary winding, a first secondary winding, and a second secondary winding, wherein the primary winding is located at a primary side of the transformer assembly, the first secondary winding and the second secondary winding are located at a secondary side of the transformer assembly, the first secondary winding and a cathode of the magnetron form a filament circuit;
and
a switch portion comprising a switch member and a control member, wherein the switch member is located in the filament circuit, the control member is electrically connected to a control winding and configured to control the switch member to turn off or turn on the filament circuit when a current in the control winding changes, and the control winding is a winding of the transformer assembly, and the control winding and an anode of the magnetron form an anode circuit.

A microwave generation device, comprising:

a magnetron;
and
a control circuit, wherein the control circuit comprises:
a transformer assembly comprising a primary winding, a first secondary winding, and a second secondary winding, the primary winding being located at a primary side of the transformer assembly, the first secondary winding and the second secondary winding being located at a secondary side of the transformer assembly, the first secondary winding and a cathode of the magnetron forming a filament circuit;
and
a switch portion comprising a switch member and a control member, the switch member being located in the filament circuit, the control member being electrically connected to a control winding and configured to control the switch member to turn off or turn on the filament circuit when a current in the control winding changes, and the control winding being one of windings of the transformer assembly, and the control winding and an anode of the magnetron forming an anode circuit.

3 more elements

Dependencies are inferred from the claim text.

Control Circuit And Microwave Generation Device

Life of this patent

Control Circuit And Microwave Generation Device

Life of this patent

Abstract

Claims10