RECTIFIER CIRCUIT FOR CONVERTING AC VOLTAGE INTO RECTIFIED VOLTAGE
First Claim
1. A rectifier circuit comprising:
- a low side switching circuit connected between a reference node and first and second input nodes, wherein the first and second input nodes receive an alternating current (AC) voltage;
a high side switching circuit connected between an output node and the first and second input nodes, wherein the output node outputs a rectified voltage of the AC voltage; and
a low side driver coupled to the low side switching circuit, wherein the low side driver is configured to control, in response to a control signal, the low side switching circuit so that the low side driving voltage and a voltage provided from one of the first and second input nodes are synchronized in phase.
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Abstract
A rectifier circuit includes a low side switching circuit, a high side switching circuit and a low side driver. The low side switching circuit is connected between a reference node and first and second input nodes. The first and second input nodes receive an alternating current (AC) voltage. The high side switching circuit is connected between an output node and the first and second input nodes. The output node outputs a rectified voltage of the AC voltage. The low side driver is coupled to the low side switching circuit. The low side driver controls, in response to a control signal, the low side switching circuit so that the low side driving voltage and a voltage provided from one of the first and second input nodes are synchronized in phase.
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Citations
20 Claims
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1. A rectifier circuit comprising:
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a low side switching circuit connected between a reference node and first and second input nodes, wherein the first and second input nodes receive an alternating current (AC) voltage; a high side switching circuit connected between an output node and the first and second input nodes, wherein the output node outputs a rectified voltage of the AC voltage; and a low side driver coupled to the low side switching circuit, wherein the low side driver is configured to control, in response to a control signal, the low side switching circuit so that the low side driving voltage and a voltage provided from one of the first and second input nodes are synchronized in phase. - View Dependent Claims (2, 3, 4)
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5. A rectifier circuit comprising:
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a low side switching circuit connected between a reference node and first and second input nodes, wherein the first and second input nodes receive an alternating current (AC) voltage; a high side switching circuit connected between an output node and the first and second input nodes, wherein the output node outputs a rectified voltage of the AC voltage; first and second low side drivers, each being coupled to the low side switching circuit, wherein the first and second low side drivers are configured to generate low side driving voltages, and wherein the first and second low side drivers are configured to control, in response to a control signal, the low side switching circuit so that the low side driving voltages provided from the first and second low side drivers are synchronized with voltages provided from the second and first input nodes, respectively; a bootstrap circuit coupled to the second input node, wherein the bootstrap circuit is configured to generate a bootstrapping voltage based on a bootstrap driving voltage and the voltage provided from the second input node; and a high side driver coupled to the high side switching circuit, wherein the high side driver is configured to provide a high side driving voltage to the high side switching circuit to control the high side switching circuit and generate the high side driving voltage based on at least one of the rectified voltage, the voltages provided from the first and second input nodes, the low side driving voltage generated by the second low side driver, the bootstrap driving voltage, and the bootstrapping voltage. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A rectifier circuit comprising:
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a low side switching circuit connected between a reference node and first and second input nodes, wherein the first and second input nodes receive an alternating current (AC) voltage; a high side switching circuit connected between an output node and the first and second input nodes, wherein the output node outputs a rectified voltage of the AC voltage; first and second low side drivers, each being coupled to the low side switching circuit, wherein the first and second low side drivers are configured to generate low side driving voltages, and wherein the first and second low side drivers are configured to control, in response to a control signal, the low side switching circuit so that the low side driving voltages provided from the first and second low side drivers are synchronized with voltages provided from the second and first input nodes, respectively; a bootstrap driving voltage generator configured to generate a bootstrap driving voltage based on the rectified voltage, the control signal, and an offset voltage; and a bootstrap circuit coupled to the high side switching circuit, wherein the bootstrap circuit is configured to generate a bootstrapping voltage based on the low side driving voltage generated by the first low side driver and the bootstrap driving voltage and provide the bootstrapping voltage to the high side switching circuit. - View Dependent Claims (19, 20)
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Specification