Current regulation apparatus
AssigneeLG Innotek Co., Ltd.
InventorsYoung Jong KIM, Hyun Sik KIM, Taek Soo KIM, Dong Young HUH
Life of this patent
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Abstract
A current regulation apparatus is provided. The current regulation apparatus includes a trans unit, a first switching unit, a voltage detection unit, a voltage comparison unit, and a control unit. The trans unit includes an auxiliary winding unit. The first switching unit controls an operation of the trans unit. The voltage detection unit detects a voltage induced to the auxiliary winding unit. The voltage comparison unit compares a voltage detected by the voltage detection unit and a reference voltage. The control unit adjusts a turn-on section of the first switching unit according to an output voltage of the voltage comparison unit.
Claims20
A current regulation apparatus comprising:
- a trans unit comprising an auxiliary winding unit;
- a first switching unit controlling an operation of the trans unit;
- a voltage detection unit detecting a voltage induced to the auxiliary winding unit;
- a voltage comparison unit comparing a voltage detected by the voltage detection unit and a reference voltage;
- and
- a control unit adjusting a turn-on section of the first switching unit according to an output voltage of the voltage comparison unit.
A current regulation apparatus comprising:
- a trans unit comprising an auxiliary winding unit;
- a first switching unit controlling an operation of the trans unit;
- a voltage detection unit detecting a voltage induced to the auxiliary winding unit;
- a voltage comparison unit comparing a voltage detected by the voltage detection unit and a reference voltage;
- a control unit adjusting a turn-on section of the first switching unit according to an output voltage of the voltage comparison unit;
- a light emission unit comprising a plurality of Light Emitting Diodes (LEDs) which emit light by a voltage outputted to a secondary side of the trans unit;
- and
- a feedback unit connected to a tap of the auxiliary winding unit to feed back an output voltage of the trans unit to a feedback terminal of the control unit.
Dependencies are inferred from the claim text.