AC-DC CONVERTER
First Claim
1. An alternating current to direct current (AC-DC)converter, comprising:
- a rectifying unit configured to rectify an AC voltage that is being input;
a boost converter unit connected to the rectifying unit and provided with a single inductor, a first switch, and a second switch formed thereto;
a smoothing unit configured to smooth the voltage passing through the boost converter unit; and
a control unit configured to control an ON/OFF of the first switch and the second switch such that the boost converter unit is operated as a power factor correction circuit or as an inrush current limiting circuit.
1 Assignment
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Accused Products
Abstract
An alternating current to direct current (AC-DC) converter is provided. The converter includes a rectifying unit configured to rectify an AC voltage that is being input, a boost converter unit connected to the rectifying unit and provided with a single inductor, a first switch, and a second switch formed thereto, a smoothing unit configured to smooth the voltage passing through the boost converter unit, and a control unit configured to control an ON/OFF of the first switch and the second switch such that the boost converter unit is operated as a power factor correction circuit or as an inrush current limiting circuit, so that the inrush current is stably controlled by reducing additional circuit structures configured for limiting an inrush current.
9 Citations
14 Claims
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1. An alternating current to direct current (AC-DC)converter, comprising:
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a rectifying unit configured to rectify an AC voltage that is being input; a boost converter unit connected to the rectifying unit and provided with a single inductor, a first switch, and a second switch formed thereto; a smoothing unit configured to smooth the voltage passing through the boost converter unit; and a control unit configured to control an ON/OFF of the first switch and the second switch such that the boost converter unit is operated as a power factor correction circuit or as an inrush current limiting circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A converter, comprising:
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a rectifying unit configured to rectify an input voltage; a boost converter unit operable as a power factor correction circuit and an inrush current limiting circuit; and a smoothing unit configured to smooth the voltage passing through the boost converter unit;
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14. A method to convert alternating current to direct current, comprising:
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rectifying an input AC voltage; controlling an ON/OFF of a first switch and a second switch to respectively pass the rectified voltage through a power factor limiting circuit or an inrush current limiting circuit to convert the voltage and output the converted voltage; and smoothing the converted voltage.
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Specification