Synchronous rectification controller and power converter using the same
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsJung Chul GONG, Hwan CHO, Ho Joon JANG
Life of this patent
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Abstract
A synchronous rectification controller and a power converter using the same may prevent malfunction at the time of an initial operation. The synchronous rectification controller may include a sensing unit sensing a magnitude of a driving current, and a driving unit outputting a rectification control signal which controls an operation of the rectification unit by the driving current sensed by the sensing unit. A flow of the driving current in the rectification unit may be selectively cut off, depending on a magnitude of a driving voltage of the synchronous rectification controller.
Claims14
A synchronous rectification controller controlling a rectification unit rectifying a driving current, comprising:
- a sensing unit sensing a magnitude of the driving current;
- and
- a driving unit outputting a rectification control signal which controls the rectification unit by the driving current sensed by the sensing unit,
- wherein the synchronous rectification controller selectively cuts off a flow of the driving current in the rectification unit in response to a magnitude of a driving voltage of the synchronous rectification controller.
A power device, comprising:
- a power supply unit generating a driving current;
- a control unit controlling the power supply unit to regulate a magnitude of the driving current;
- a rectification unit rectifying the driving current;
- and
- a synchronous rectification control unit controlling the rectification unit to output a rectification control signal,
- wherein the synchronous rectification control unit selectively cuts off a flow of the driving current in the rectification unit, depending on a magnitude of a driving voltage of the synchronous rectification control unit.
A synchronous rectification method for controlling rectifying a driving current using a synchronous rectification controller controlling a rectification unit, comprising:
- receiving a driving voltage of the synchronous rectification controller;
- and
- cutting off a flow of the driving current in the rectification unit using a voltage corresponding to the driving current when a magnitude of the driving voltage is equal to or less than a predetermined value.
Dependencies are inferred from the claim text.