| 发明名称 |
Method and Device for Detecting Current of Inductor of PFC Circuit |
| 摘要 |
A method and device for detecting inductor current of a PFC circuit are disclosed, which relates to the field of power supply technology. The method includes: detecting a voltage on a boost inductor of a critical-conduction mode PFC circuit, and obtaining an inductor voltage detection signal (S1); converting the inductor voltage detection signal into a voltage signal whose waveform is consistent with a current waveform of the inductor to serve as an inductor current detection signal, to perform loop protection on the PFC circuit or perform over-current protection on the PFC circuit by using the inductor current detection signal (S2). |
| 申请公布号 |
US2017045555(A1) |
申请公布日期 |
2017.02.16 |
| 申请号 |
US201415305104 |
申请日期 |
2014.10.28 |
| 申请人 |
ZTE CORPORATION |
发明人 |
LIU Tao;ZHOU Jianping;Lin Guoxian;FAN Jie;LUO Yong |
| 分类号 |
G01R19/25;H02M1/42;H02H7/12;G01R15/18 |
主分类号 |
G01R19/25 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for detecting inductor current of a power factor correction (PFC) circuit, comprising:
detecting a voltage on a boost inductor of a critical-conduction mode PFC circuit, and obtaining an inductor voltage detection signal; converting the inductor voltage detection signal into a voltage signal whose waveform is consistent with a current waveform of the inductor to serve as an inductor current detection signal, to perform loop protection on the PFC circuit or perform over-current protection on the PFC circuit by using the inductor current detection signal. |
| 地址 |
Shenzhen City, Guangdong Province CN |
