发明名称 |
Control circuit for measuring and regulating output current of CCM power converter |
摘要 |
A switching control circuit is provided for measuring and regulating an output current of a power converter. The power converter is operated under continuous current mode. A detection circuit generates a continuous-current signal and a peak-current signal by detecting a switching current of an inductive device. An integration circuit generates an average-current signal in response to the continuous-current signal, the peak-current signal and an off time of a switching signal. The switching control circuit generates the switching signal in response to the average-current signal. The switching signal is coupled to switch the inductive device and regulate the output current of the power converter. A time constant of the integration circuit is correlated to the switching period of the switching signal, therefore the average-current signal will be proportional to the output current.
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申请公布号 |
US7663352(B2) |
申请公布日期 |
2010.02.16 |
申请号 |
US20070845261 |
申请日期 |
2007.08.27 |
申请人 |
SYSTEM GENERAL CORP. |
发明人 |
YANG TA-YUNG;LI CHUH-CHING;TSAO FENG-CHENG |
分类号 |
G05F1/00;H02M3/24;H02M7/44 |
主分类号 |
G05F1/00 |
代理机构 |
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主权项 |
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