发明名称 |
CAPACITOR CHARGING CIRCUIT WITH A SOFT-START FUNCTION |
摘要 |
When a primary winding current increases to an upper limit determined by a reference voltage having a soft-start characteristic, a power switch is turned OFF. When a secondary winding current decreases to a lower limit determined by another predetermined reference voltage, the power switch is turned ON. A minimum ON-time limiting unit prevents the power switch from being turned OFF before a minimum ON-time expires. The minimum ON-time may be provided with a soft-start modulation. A minimum OFF-time limiting unit prevents the power switch from being turned ON before a minimum OFF-time expires. A maximum ON-time limiting unit prevents the power switch from still remaining ON after a maximum ON-time expires.
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申请公布号 |
US2006033477(A1) |
申请公布日期 |
2006.02.16 |
申请号 |
US20040710997 |
申请日期 |
2004.08.16 |
申请人 |
LEE RONG-CHIN;LIN CHING-KUN;WU CHING-SUNG |
发明人 |
LEE RONG-CHIN;LIN CHING-KUN;WU CHING-SUNG |
分类号 |
H02J7/00 |
主分类号 |
H02J7/00 |
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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