发明名称 |
Switch mode power supply circuit |
摘要 |
In a switch mode power supply which includes a transformer for DC isolation and a switching transistor, a control transistor which controls the switching transistor is switched on by an appropriate control voltage during the isolating phase until the collector voltage of the switching transistor has fallen to a minimum. The control transistor is preferably switched on during the isolating discharge time and the subsequent oscillation phase of the transformer.
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申请公布号 |
US5657218(A) |
申请公布日期 |
1997.08.12 |
申请号 |
US19950454930 |
申请日期 |
1995.05.31 |
申请人 |
DEUTSCHE THOMSON BRANDT GMBH |
发明人 |
RILLY, GERARD;DURAN, JOSE I. RODRIGUEZ;REHM, MARKUS |
分类号 |
H02M3/28;H02M3/335;H02M3/338;(IPC1-7):H02M3/24;H02M7/44 |
主分类号 |
H02M3/28 |
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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