发明授权
- 专利标题: Power supply, display device, and light source driving apparatus
- 专利标题(中): 电源,显示装置和光源驱动装置
-
申请号: US11197082申请日: 2005-08-04
-
公开(公告)号: US07567067B2公开(公告)日: 2009-07-28
- 发明人: Sang-Gil Lee , Ju-Young Yoon , Jong-Seo Lee , Gi-Cherl Kim , Sang-Yu Lee
- 申请人: Sang-Gil Lee , Ju-Young Yoon , Jong-Seo Lee , Gi-Cherl Kim , Sang-Yu Lee
- 申请人地址: KR Suwon-Si, Gyeonggi-do
- 专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人地址: KR Suwon-Si, Gyeonggi-do
- 代理机构: Haynes and Boone, LLP
- 优先权: KR10-2004-0066015 20040820
- 主分类号: G05F1/00
- IPC分类号: G05F1/00
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.
公开/授权文献
信息查询
IPC分类: