Switching unit and power supply circuit
AssigneeKabushiki Kaisha Toshiba
InventorsKohei Hasegawa, Takenori Yasuzumi
Life of this patent
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Abstract
A switching unit of an embodiment includes a first switching element of normally-on type, a second switching element of normally-off type having a non-reference potential side conductive terminal connected to a reference potential side conductive terminal of the first switching element, a series capacitor connected between a conduction control terminal of the first switching element and a conduction control terminal of the second switching element, and a diode having an anode connected to the conduction control terminal of the first switching element and a cathode connected to a common junction of the first switching element and the second switching element.
Claims17
A switching unit comprising:
- a first switching element of normally-on type;
- a second switching element of normally-off type haying a non-reference potential side conductive terminal connected to a reference potential side conductive terminal of the first switching element;
- a series capacitor connected between a conduction control terminal of the first switching element and a conduction control terminal of the second switching element;
- and a first diode having an anode directly connected to the conduction control terminal of the first switching element and a cathode directly connected to a common junction of the first switching element and the second switching element.
A power supply circuit comprising:
- a first switching element of normally—on type;
- a second switching element of normally—off type having a non-reference potential side conductive terminal connected to a reference potential side conductive terminal of the first switching element;
- a series capacitor connected between a conduction control terminal of the first switching element and a conduction control terminal of the second switching element;
- a diode having an anode directly connected to the conduction control terminal of the first switching element and a cathode directly connected to a common junction of the first switching element and the second switching element:
- and a drive circuit outputting a drive signal to a switching unit formed by the first switching clement, the second switching element, the series capacitor, and the diode, wherein the power supply circuit, generates a supply voltage of a predetermined level as the switching unit performs a switching operation in accordance with the drive signal.
Dependencies are inferred from the claim text.