发明名称 |
Low-power low-voltage power supply |
摘要 |
An electrical circuit arrangement provides a low power rectified low voltage from an AC line voltage. The circuit consists of two circuit blocks combined together via an intermediate circuit, of which the first circuit block contains a capacitive input stage for producing a voltage-limited intermediate voltage that is substantially less than the line voltage, and a second circuit block that contains an asymmetric half-bridge that receives the intermediate voltage and produces an AC voltage that is decoupled from the line voltage via a transformer that is operated at the substantially lower voltage. The output of the transformer is rectified to provide the low-level DC output.
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申请公布号 |
US6760233(B2) |
申请公布日期 |
2004.07.06 |
申请号 |
US20020192263 |
申请日期 |
2002.07.10 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
TOLLE TOBIAS GEORG;DUERBAUM THOMAS;SMIDT PIETER JAN MARK |
分类号 |
H02M3/28;H02M3/337;(IPC1-7):H02M3/335 |
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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