发明名称 |
SIGNAL PEAK DETECTOR AND DETECTION METHOD, AND CONTROL IC AND METHOD FOR A PFC CONVERTER |
摘要 |
A control integrated circuit for a power factor correction converter has a pin for detecting an alternating-current information and a direct-current information of an input signal. The control integrated circuit comprises a signal peak detector for detecting a peak value of the input signal to the pin to obtain the direct-current information of the input signal. Since the alternating-current information and the direct-current information of the input signal can be obtained through the same pin, the pin count of the control integrated circuit can be decreased. |
申请公布号 |
US2014117947(A1) |
申请公布日期 |
2014.05.01 |
申请号 |
US201314061317 |
申请日期 |
2013.10.23 |
申请人 |
RICHTEK TECHNOLOGY CORPORATION |
发明人 |
LAI YUNG-CHIH;HO JYUN-CHE;CHEN ISAAC Y. |
分类号 |
H02M1/42;H03K23/00 |
主分类号 |
H02M1/42 |
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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