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US 10,374,447 B2Granted
Power converter circuit including at least one battery
AssigneeInfineon Technologies Austria AG
InventorGerald Deboy
Life of this patent
Estimating the term…
Abstract
A circuit includes a first power converter circuit and a second power converter circuit. The input of the second power converter circuit is coupled to the output of the first power converter circuit and is configured to receive an input signal. A rechargeable battery is coupled to the output of the first power converter circuit. A charge control circuit is configured to control charging the rechargeable battery by controlling the second power converter circuit.
Claims27
A circuit comprising:
- a first power converter circuit comprising an output;
- a second power converter circuit comprising an input, an output, and a first control circuit, wherein
- the input of the second power converter circuit is coupled to the output of the first power converter circuit and is configured to receive an input signal from the first power converter circuit,
- the output of the second power converter circuit is configured to be coupled to a load, and
- the second power converter circuit is configured to deliver at the output of the second power converter circuit a first power;
- a rechargeable battery coupled to the output of the first power converter circuit and to the input of the second power converter circuit;
- and
- a second control circuit coupled to the first control circuit, the second control circuit configured to control charging the rechargeable battery during a charging mode by
- detecting a charge state of the rechargeable battery, and
- providing a reference signal based on the detected charge state to the first control circuit, wherein the reference signal represents a desired signal level of the input signal, and wherein the first control circuit is configured to limit the input signal based on the reference signal while the first power is positive.
7 more elements
A method comprising:
- supplying a first output power at an output of a first power converter circuit;
- supplying a second output power at an output of a second power converter, the second power converter having an input coupled to the output of the first power converter circuit to receive an input signal;
- and
- controlling, during a charging mode, a charging of a rechargeable battery coupled to the output of the first power converter circuit by
- detecting a charge state of the rechargeable battery, and
- providing a reference signal based on the detected charge state to the second power converter, wherein the reference signal represents a desired signal level of the input signal, and wherein the second power converter limits the input signal based on the reference signal while the second output power is positive.
3 more elements
A circuit comprising:
- a first power converter circuit comprising an output;
- a second power converter circuit comprising an input, an output, and a first control circuit, wherein
- the input of the second power converter circuit is coupled to the output of the first power converter circuit and is configured to receive an input signal,
- the output of the second power converter circuit is configured to be coupled to a load, and
- the second power converter circuit is configured to deliver at the output of the second power converter circuit a first power;
- a rechargeable battery node coupled to the output of the first power converter circuit, the rechargeable battery node configured to be coupled to a rechargeable battery;
- and
- a second control circuit coupled to the first control circuit, the second control circuit configured to control charging the rechargeable battery during a charging mode by
- detecting a charge state of the rechargeable battery, and
- providing a reference signal based on the detected charge state to the first control circuit, wherein the reference signal represents a desired signal level of the input signal, and wherein the first control circuit is configured to limit the input signal based on the reference signal while the first power is positive.
7 more elements
Dependencies are inferred from the claim text.