| 发明名称 | Light emitting diode driver | ||
| 摘要 | There is provided a light emitting diode driver capable of improving power efficiency by using a resistor having a low power consumption rating while controlling an LED channel so that it has constant brightness stably. The light emitting diode driver includes: a power supplying unit converting an input voltage into a predetermined driving voltage so as to supply the driving voltage to an LED channel; and a driving unit amplifying a detection voltage detected based on a current from the LED channel by a predetermined gain and controlling the current flowing through the LED channel so that the amplified detection voltage has a level equal to that of a predetermined reference voltage. | ||
| 申请公布号 | US9148928(B2) | 申请公布日期 | 2015.09.29 |
| 申请号 | US201414163902 | 申请日期 | 2014.01.24 |
| 申请人 | SAMSUNG ELECTRO-MECHANICS CO., LTD. | 发明人 | Park Jung Eui;Lee Jin Soo;Ryu Byoung Woo;Kong Seung Kon;Han Dae Hoon;Hwang Bo Hyun |
| 分类号 | H05B33/08 | 主分类号 | H05B33/08 |
| 代理机构 | McDermott Will & Emery LLP | 代理人 | McDermott Will & Emery LLP |
| 主权项 | 1. A light emitting diode (LED) driver, comprising: a power supplying unit converting an input voltage into a predetermined driving voltage so as to supply the driving voltage to an LED channel; and a driving unit amplifying a detection voltage detected based on a current from the LED channel by a predetermined gain and controlling the current flowing through the LED channel so that the amplified detection voltage has a level equal to that of a predetermined reference voltage. | ||
| 地址 | Suwon-Si, Gyeonggi-Do KR | ||