发明名称 |
Switch mode power supply using a saturable inductor to provide a pulsed current source |
摘要 |
A switch mode power supply comprises at least one bridge arm including two switching cells in series receiving a direct current voltage to be switched. Each switching cell includes a switching arrangement in parallel with a capacitor and a protection diode. The switching arrangement is alternately closed and opened to supply an alternating current voltage at a switching frequency applied to a load one terminal of which is connected to the common point of the switching cells. A pulsed current source including a saturable inductor is connected to the common point. The saturable inductor is provided by a device including a primary circuit with two windings and a secondary circuit including a single winding to which a direct current source is connected. The windings are wound on a magnetic core and the windings of the primary circuit are connected in parallel and wound in opposite directions. A capacitor is connected in series with the saturable inductor.
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申请公布号 |
US5646836(A) |
申请公布日期 |
1997.07.08 |
申请号 |
US19960630585 |
申请日期 |
1996.04.10 |
申请人 |
ALCATEL CONVERTERS |
发明人 |
SADARNAC, DANIEL;D'ALMEIDA, SYLVAIN |
分类号 |
H01F29/14;H02M3/337;(IPC1-7):H02M7/44 |
主分类号 |
H01F29/14 |
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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