Circuit for a semiconductor switching element including a transformer
AssigneeInfineon Technologies Austria AG
InventorsMarcus Nuebling, Jens Barrenscheen, Bernhard Strzalkowski
Life of this patent
Estimating the term…
Abstract
A circuit for a semiconductor switching element including a transformer. One embodiment provides a first voltage supply circuit having a first oscillator. A first transformer is connected downstream of the first oscillator. A first accumulation circuit for providing a first supply voltage is connected downstream of the first transformer. A driver circuit having input terminals for feeding in the first supply voltage and having output terminals for providing a drive voltage for the semiconductor switching element, designed to generate the drive voltage for the semiconductor switching element at least from the first supply voltage.
Claims24
(canceled)
2-15. (canceled)
A circuit for a semiconductor switching element, comprising:
- at least a first voltage supply circuit having a first oscillator;
- a first transformer, connected downstream of the first oscillator;
- and
- a first accumulation circuit for providing a first supply voltage, connected downstream of the first transformer;
- and
- a driver circuit having input terminals for feeding in the first supply voltage and having output terminals for providing a drive voltage for the semiconductor switching element, configured to generate the drive voltage for the semiconductor switching element at least from the first supply voltage.
A circuit comprising:
- at least a first voltage supply circuit having a first oscillator;
- a first transformer, connected downstream of the first oscillator;
- and
- a first accumulation circuit for providing a first supply voltage, connected downstream of the first transformer;
- and
- a driver circuit having input terminals for feeding in the first supply voltage and having output terminals for providing a drive voltage for the semiconductor switching element, configured to generate the drive voltage for the semiconductor switching element at least from the first supply voltage, the driver circuit further comprising:
- a semiconductor switching element connected between the output terminals;
- and
- an evaluation circuit, to which the first supply voltage is fed and configured to drive the semiconductor switching element depending on the supply voltage.
A circuit for a semiconductor switching element, comprising:
- at least a first voltage supply circuit having a first oscillator;
- a first transformer, connected downstream of the first oscillator;
- and
- a first accumulation circuit for providing a first supply voltage, connected downstream of the first transformer;
- a driver circuit having input terminals for feeding in the first supply voltage and having output terminals for providing a drive voltage for the semiconductor switching element, configured to generate the drive voltage for the semiconductor switching element at least from the first supply voltage;
- and
- a second voltage supply circuit having a second transformer and a second accumulation circuit for providing a second supply voltage, connected downstream of the second transformer,
- wherein the second supply voltage is fed to the driver circuit.
An integrated circuit comprising:
- at least a first voltage supply circuit having a first oscillator;
- a first transformer, connected downstream of the first oscillator;
- and
- a first accumulation circuit for providing a first supply voltage, connected downstream of the first transformer;
- and
- a driver circuit having input terminals for feeding in the first supply voltage and having output terminals for providing a drive voltage for a switching element, configured to generate the drive voltage for the semiconductor switching element at least from the first supply voltage, including a first semiconductor switching element.
A method for driving a semiconductor switching element comprising:
- providing at least a first voltage supply circuit having a first oscillator;
- providing a first transformer, connected downstream of the first oscillator;
- and
- providing a first supply voltage via a first accumulation circuit, connected downstream of the first transformer;
- and
- receiving the first supply voltage via a driver circuit and having output terminals for providing a drive voltage for the semiconductor switching element, including generating the drive voltage for the semiconductor switching element at least from the first supply voltage.
Dependencies are inferred from the claim text.