发明名称 |
POWER SUPPLY, DISPLAY DEVICE, AND LIGHT SOURCE DRIVING APPARATUS |
摘要 |
A power supply is provided, which includes a DC-DC converter being supplied with an external DC input voltage and a first switching control signal and outputting a duty sensing signal of which a magnitude is varied in accordance with the first switching control signal, the duty sensing signal being indicative of a duty ratio of the first switching control signal, and the DC-DC converter converting the input voltage into a DC output voltage of a predetermined magnitude based on the first switching control signal; and a feedback controlling unit comparing the duty sensing signal with a first reference signal to adjust the duty ratio of the first switching control signal.
|
申请公布号 |
US2009256499(A1) |
申请公布日期 |
2009.10.15 |
申请号 |
US20090488403 |
申请日期 |
2009.06.19 |
申请人 |
LEE SANG-GIL;YOON JU-YOUNG;LEE JONG-SEO;KIM GI-CHERL;LEE SANG-YU |
发明人 |
LEE SANG-GIL;YOON JU-YOUNG;LEE JONG-SEO;KIM GI-CHERL;LEE SANG-YU |
分类号 |
H05B39/04 |
主分类号 |
H05B39/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|