POWER SUPPLY AND DC-DC CONVERTER THEREIN
First Claim
1. A power supply comprising:
- a smoothing circuit unit to receive a voltage and to smoothen the voltage; and
a voltage drop circuit unit to drop the smoothened voltage,wherein the voltage drop circuit unit comprises;
an electric charge storage circuit to output the dropped smoothened voltage;
a resonance circuit to receive first current from the smoothing circuit unit and to supply second current to the electric charge storage circuit; and
a current interruption circuit to control the first current and the second current.
1 Assignment
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Accused Products
Abstract
A power supply includes a rectifier circuit to rectify power, a smoothing circuit unit to smoothen a voltage of the rectified power, and a voltage drop circuit unit to drop the smoothened voltage. The voltage drop circuit unit includes an electric charge storage circuit to output the voltage-dropped voltage, a resonance circuit to receive first current from the smoothing circuit unit and to supply second current to the electric charge storage circuit, and a current interruption circuit to control the first current and the second current using zero current switching for performing switching when current does not flow using a resonance circuit.
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Citations
31 Claims
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1. A power supply comprising:
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a smoothing circuit unit to receive a voltage and to smoothen the voltage; and a voltage drop circuit unit to drop the smoothened voltage, wherein the voltage drop circuit unit comprises; an electric charge storage circuit to output the dropped smoothened voltage; a resonance circuit to receive first current from the smoothing circuit unit and to supply second current to the electric charge storage circuit; and a current interruption circuit to control the first current and the second current. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A voltage drop circuit for dropping a voltage of a power source, the voltage drop circuit comprising:
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an electric charge storage circuit unit to output the dropped voltage; a resonance circuit unit to receive first current from the power source and to supply second current to the electric charge storage circuit a switching circuit to interrupt the first current and the second current; and a rectifier circuit to pass one of the first current and the second current and to shut off the other of the first current and the second current. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A voltage drop circuit for dropping a voltage of a power source, the voltage drop circuit comprising:
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at least one electric charge storage circuit unit to output the dropped voltage; at least one resonance circuit unit to receive first current from the power source and to supply second current to the electric charge storage circuit; a switching circuit to interrupt the first current and the second current; a rectifier circuit to rectify the first current and the second current; and a voltage drop controller to control the switching circuit. - View Dependent Claims (26, 27, 28, 29, 30, 31)
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Specification