发明名称 |
METHOD AND APPARATUS OF PROVIDING A BIASED CURRENT LIMIT FOR LIMITING MAXIMUM OUTPUT POWER OF POWER CONVERTERS |
摘要 |
A biased current-limit circuit for limiting a maximum output power of a power converter includes an oscillator for generating a pulse signal. A waveform generator generates a waveform signal in response to a switching signal and a second-sampling signal. A sample-hold circuit is used to sample the waveform signal to generate a hold signal in response to a first-sampling signal. The sample-hold circuit further samples the hold signal to generate a current-limit threshold in response to the second-sampling signal. A current comparator is utilized to compare a current-sensing signal with the current-limit threshold to limit a maximum on-time of the switching signal.
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申请公布号 |
US2010007394(A1) |
申请公布日期 |
2010.01.14 |
申请号 |
US20080337608 |
申请日期 |
2008.12.17 |
申请人 |
SYSTEM GENERAL CORP. |
发明人 |
HSUEH CHENG-CHI;HUANG WEI-HSUAN;YANG TA-YUNG |
分类号 |
H03K7/08 |
主分类号 |
H03K7/08 |
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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