| 发明名称 |
LED DRIVING DEVICE, LIGHTING DEVICE, AND CONTROL CIRCUIT FOR LED DRIVING DEVICE |
| 摘要 |
A light emitting diode (LED) driving device includes a rectifier, a voltage converter, a variable impedance unit, and a controller. The rectifier rectifies an alternating current (AC) voltage to generate a first voltage. The voltage converter generates a second voltage for driving a plurality of LEDs from the first voltage. The variable impedance unit is connected to an input terminal of the rectifier. The controller adjusts impedance of the variable impedance unit based on at least one of the first and second voltages. |
| 申请公布号 |
US2015130363(A1) |
申请公布日期 |
2015.05.14 |
| 申请号 |
US201414336880 |
申请日期 |
2014.07.21 |
| 申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
LEE Bong Jin;KANG Kyu Cheol |
| 分类号 |
H05B33/08 |
主分类号 |
H05B33/08 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A light emitting diode (LED) driving device, comprising:
a rectifier configured to rectify an alternating current (AC) voltage to generate a first voltage; a voltage converter configured to generate a second voltage for driving a plurality of LEDs based on the first voltage; a variable impedance unit connected to an input terminal of the rectifier; and a controller configured to adjust impedance of the variable impedance unit based on at least one of the first and second voltages. |
| 地址 |
Suwon-si KR |
