SINGLE STAGE AC/DC CONVERTER
First Claim
1. A single stage AC/DC converter comprising:
- a rectifier to rectify an input AC voltage and output the input AC voltage from a first input node and a second input node to a first output node and a second output node;
an input capacitor connected between the first and second output nodes to store a rectified voltage and output a constant voltage;
a transformer unit to transform the voltage, which is received from the input capacitor, and transmit the voltage from a primary side to a secondary side; and
a power factor correction circuit to correct a power factor of a circuit,wherein the power factor correction circuit comprises;
a first auxiliary diode having one terminal connected with the first input node;
a second auxiliary diode having one terminal connected with the second input node;
an auxiliary winding inductor connected between opposite terminals of the first and second auxiliary diodes and the first output node, and coupled with the transformer unit; and
a first input inductor connected between the auxiliary winding inductor connected with the first output node and the input capacitor.
1 Assignment
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Accused Products
Abstract
A single stage AC/DC converter includes a rectifier to rectify an input AC voltage and output the input AC voltage from first and second input nodes to first and second output nodes, an input capacitor connected between the first and second output nodes to store a rectified voltage and output a constant voltage, a transformer unit to transform the voltage received from the input capacitor, and transmit the voltage to a secondary side, and a power factor correction circuit to correct a power factor of a circuit. The power factor correction circuit includes a first auxiliary diode having one terminal connected with the first input node, a second auxiliary diode having one terminal connected with the second input node, and an auxiliary winding inductor connected among opposite terminals of the first and second auxiliary diodes and the first output node or the second output node.
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Citations
20 Claims
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1. A single stage AC/DC converter comprising:
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a rectifier to rectify an input AC voltage and output the input AC voltage from a first input node and a second input node to a first output node and a second output node; an input capacitor connected between the first and second output nodes to store a rectified voltage and output a constant voltage; a transformer unit to transform the voltage, which is received from the input capacitor, and transmit the voltage from a primary side to a secondary side; and a power factor correction circuit to correct a power factor of a circuit, wherein the power factor correction circuit comprises; a first auxiliary diode having one terminal connected with the first input node; a second auxiliary diode having one terminal connected with the second input node; an auxiliary winding inductor connected between opposite terminals of the first and second auxiliary diodes and the first output node, and coupled with the transformer unit; and a first input inductor connected between the auxiliary winding inductor connected with the first output node and the input capacitor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A single stage AC/DC converter comprising:
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a rectifier to rectify an input AC voltage and output the input AC voltage from a first input node and a second input node to a first output node and a second output node; an input capacitor connected between the first and second output nodes to store a rectified voltage and output a constant voltage; a transformer unit to transform the voltage, which is received from the input capacitor, and transmit the voltage from a primary side to a secondary side; and a power factor correction circuit to correct a power factor of a circuit, wherein the power factor correction circuit comprises; a first auxiliary diode having one terminal connected with the first input node; a second auxiliary diode having one terminal connected with the second input node; an auxiliary winding inductor connected among opposite terminals of the first and second auxiliary diodes and the second output node, and coupled with the transformer unit; and a first input inductor connected between the auxiliary winding inductor connected with the first output node and the input capacitor. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification