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US 9,853,534 B2Granted
Converter circuit arrangement and conversion method
AssigneeInfineon Technologies Austria AG
InventorsAndreas Hofmann, Pierrick Ausseresse
Life of this patent
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Abstract
A converter circuit arrangement is provided, including a converter switch controller, a converter switch, a load circuit interface and an inductor. The converter switch controller may include a control input. The converter switch may be coupled between a first power supply potential and the control input. The inductor may be coupled between a second power supply potential and the load circuit interface. The load circuit interface may be coupled between the control input and the inductor.
Claims20
A converter circuit arrangement, comprising:
- a power supply that comprises a first supply voltage node and a second supply voltage node, wherein the power supply is configured to develop a floating voltage between the first supply voltage node and the second supply voltage node;
- a converter switch controller comprising a control input and a converter switch coupled between the first supply voltage node and the control input, wherein the converter switch controller is configured to drive the converter switch between an open state and a closed state based on a feedback signal developed at the control input;
- a load circuit interface;
- an inductor coupled between the second supply voltage node and the load circuit interface, wherein the load circuit interface is coupled between the control input and the inductor in series with a ground reference node;
- and
- a diode or transistor coupled between the inductor and the ground reference node and configured to provide a freewheeling path for current flowing through the inductor and the load circuit interface when the converter switch is in the open state.
3 more elements
A converter circuit arrangement, comprising:
- a transistor;
- a controller that has a first terminal coupled to a gate terminal of the transistor and a second terminal coupled to a source terminal of the transistor, wherein the controller is configured to drive the transistor between an open state and a closed state based on a feedback signal developed at the second terminal of the controller;
- a power supply that is configured to develop a floating voltage between a first supply voltage node and a second supply voltage node, wherein a drain terminal of the transistor is coupled to the first supply voltage node;
- and
- an inductor, a freewheeling device and a load circuit interface arranged in a topology wherein each one of a first terminal of the inductor and a first terminal of the freewheeling device is coupled to the second primary supply voltage node and the inductor and load circuit interface are series-connected to a ground reference node in parallel with the freewheeling device, and wherein the freewheeling device is non-conducting when the transistor is in the closed state and conducting when the transistor is in the open state to provide a freewheeling path for current flowing through the inductor and the load circuit interface.
2 more elements
Dependencies are inferred from the claim text.