发明名称 |
Improvements in or relating to switched mode power supplies. |
摘要 |
<p>@ A switched mode power supply includes two alternately conductive switching means each comprising two switching elements. Capacitive smoothing means are connected in parallel with one element of each switching means and to the rectified supply via further capacitors. A similar supply is connected to a load via a primary winding of a transformer. A capacitive circuit is provided across one switching element of each switching means and the secondary transformer winding is common to these circuits. Supply current draw is controlled at least once in each cycle by current flowing in the secondary due to the current in the primary.</p> |
申请公布号 |
EP0205287(A2) |
申请公布日期 |
1986.12.17 |
申请号 |
EP19860304117 |
申请日期 |
1986.05.30 |
申请人 |
THORN EMI LIGHTING LTD |
发明人 |
BALL, DAVID PETER |
分类号 |
H02M7/5387;H05B41/28;(IPC1-7):H02M7/538;H02M7/521 |
主分类号 |
H02M7/5387 |
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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