| 发明名称 |
MULTI-FUNCTION PIN FOR LIGHT EMITTING DIODE (LED) DRIVER |
| 摘要 |
Techniques are described for a multi-function pin of a light emitting diode (LED) driver. The techniques utilize this multi-function pin for switching current that flows through one or more LEDs, as well as for charging the power supply of the LED driver. The techniques further utilize this multi-function pin to determine whether the voltage at an external transistor is beginning to oscillate, and utilize this multi-function pin to determine whether the current through the one or more LEDs has fully dissipated to an amplitude of zero. |
| 申请公布号 |
US2015048677(A1) |
申请公布日期 |
2015.02.19 |
| 申请号 |
US201313969963 |
申请日期 |
2013.08.19 |
| 申请人 |
Infineon Technologies Austria AG |
发明人 |
Gong Xiaowu |
| 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) driver comprising:
an input pin that receives a current flowing through one or more LEDs into the LED driver; and a controller configured to determine whether a voltage at an external node that is external to the LED driver is beginning to oscillate based on a voltage at the input pin that receives the current in the LED driver, and determine whether the current flowing through the one or more LEDs has reached an amplitude of zero based on the voltage at the same input pin. |
| 地址 |
Villach AT |
