Circuit arrangement for actuating a transistor
AssigneeInfineon Technologies Austria AG
InventorsBernhard Strzalkowski, Marco Seibt, Uwe Kirchner
Life of this patent
Estimating the term…
Abstract
One example of the invention relates to a circuit arrangement for actuating a high-side transistor which includes a control terminal and a load terminal. The circuit arrangement includes a driver circuit that is designed to generate, in response to a control signal, a driver signal for the control terminal of the high-side transistor. A supply circuit is capacitively coupled to a radio-frequency signal source and is designed to provide a supply voltage to the driver circuit, the supply voltage being referenced to a floating reference potential.
Claims24
A circuit arrangement for actuating a high-side transistor that comprises a control terminal and a load terminal, the circuit arrangement comprising:
- a driver circuit that is designed to generate, in response to a control signal, a driver signal for the control terminal of the high-side transistor,
- a radio-frequency signal source;
- and
- a supply circuit capacitively coupled to the radio-frequency signal source and which is designed to provide at an output a supply voltage to the driver circuit, the supply voltage being referenced to a floating reference potential, wherein one circuit node, that is at the floating reference potential, and a further circuit node, which has a constant reference potential, have a capacitor connected between them for closing a current path to the radio-frequency signal source.
A circuit comprising:
- a radio-frequency signal source;
- a driver circuit including an output to be coupled to a control terminal of a high-side transistor;
- and
- a supply circuit with an input that is capacitively coupled to an output of the radio-frequency signal source and with an output that is coupled to a supply voltage input of the driver circuit, the supply voltage being referenced to a floating reference potential, wherein the supply circuit comprises at least one Villard cascade for doubling voltage.
A circuit arrangement for actuating a high-side transistor that comprises a control terminal and a load terminal, the circuit arrangement comprising:
- a driver circuit generating a driver signal for the control terminal of the high-side transistor in response to a control signal;
- a radio-frequency signal source;
- and
- a supply circuit configured to be capacitively coupled to a radio-frequency signal source the supply circuit providing a supply voltage to the driver circuit, the supply voltage being referenced to a floating reference potential, wherein one circuit node, that is at the floating reference potential, and a further circuit node, which has a constant reference potential, have a capacitance connected between them for closing a current path to the radio-frequency signal source.
Dependencies are inferred from the claim text.