发明名称 |
ACTIVE CLAMP RESONANCE CONTROL |
摘要 |
According to some preferred embodiments, power converter includes a comparator circuit with feedback from current-fed PI or PID control to select one of two regeneration times of at least one active clamp: i) wherein at low loads a regeneration circuit is turned ON for substantially an entire current-transfer cycle such as to avoid output of current-fed converter continuing to rise; and ii) wherein at high loads the regeneration period is reduced to between about ¼ to ½ of a resonance-frequency cycle so that a resonance between the regeneration capacitance and the transformer's leakage inductance avoids excessive ringing currents and/or lost efficiency.
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申请公布号 |
US2008013346(A1) |
申请公布日期 |
2008.01.17 |
申请号 |
US20070765692 |
申请日期 |
2007.06.20 |
申请人 |
TOSHIBA INTERNATIONAL CORPORATION |
发明人 |
WESTMORELAND DAVID;AMBO TATSUAKI |
分类号 |
H02M5/458 |
主分类号 |
H02M5/458 |
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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