发明名称 |
Load detection for switched-mode power converters |
摘要 |
In one embodiment, a method for detecting a load in a switched-mode power converter is provided. The switched-mode power converter includes high and low-side power switches which are configured to be driven respectively by high and low-side drive signals to provide a switching voltage. The high and low-side drive signals include a plurality of dead-time periods. The method includes monitoring a waveform of the switching voltage and at least one of the high and low-side drive signals. The monitored waveform of the switching voltage is compared to the monitored waveform of the at least one of the high and low-side drive signals to determine whether the switching voltage is high or low during at least one of the dead-time periods. A current measurement of the load is determined based on whether the switching voltage is high or low during the at least one of the dead-time periods. |
申请公布号 |
US8638088(B2) |
申请公布日期 |
2014.01.28 |
申请号 |
US201113019490 |
申请日期 |
2011.02.02 |
申请人 |
HONDA JUN;JEONG JONG-DEOG;INTERNATIONAL RECTIFIER CORPORATION |
发明人 |
HONDA JUN;JEONG JONG-DEOG |
分类号 |
G01R25/00 |
主分类号 |
G01R25/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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