发明名称 |
Circuits and Methods for Controlling Power Converters Including Transformers |
摘要 |
A circuit includes a transformer and a controller. The transformer includes a primary winding and a secondary winding, and operates in multiple switching cycles. A switching cycle includes a charging period and a discharging period. During the charging period, the transformer is powered by the input voltage and a current flowing through the primary winding increases. During the discharging period the transformer discharges to power the load and a current flowing through the secondary winding decreases. The controller includes a pin that receives a first feedback signal indicating the input voltage during the charging period and receives a second feedback signal indicating an electrical condition of the secondary winding during the discharging period. The controller generates a first control signal and a second control signal to regulate the input voltage and an output current flowing through the load, respectively. |
申请公布号 |
US2012243269(A1) |
申请公布日期 |
2012.09.27 |
申请号 |
US201213443786 |
申请日期 |
2012.04.10 |
申请人 |
REN ZHIMOU;KUO CHING-CHUAN;GAO JIANLONG;YI XINMIN;XIE YUNNING;O2MICRO, INC. |
发明人 |
REN ZHIMOU;KUO CHING-CHUAN;GAO JIANLONG;YI XINMIN;XIE YUNNING |
分类号 |
H02M3/335 |
主分类号 |
H02M3/335 |
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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