发明名称 |
Leakage current power supply |
摘要 |
An electronic power supply (100) receives power from an AC source (10) and supplies power to a load (20) that is referenced to earth ground (30). Power supply (100) comprises a power converter (200) and a voltage regulator (400). Power converter (200) draws a ground leakage current from AC source (10) and is capable of providing a steady-state output current having an average value that is greater than that of the ground leakage current. Voltage regulator (400) limits the output voltage of the power converter (200) to a predetermined level. In a preferred embodiments power converter (200) is implemented as a self-oscillating converters and power supply (100) draws a ground leakage current that is sufficiently small to meet regulatory limits and to avoid tripping of conventional ground-fault interrupters.
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申请公布号 |
US5909365(A) |
申请公布日期 |
1999.06.01 |
申请号 |
US19970885448 |
申请日期 |
1997.06.30 |
申请人 |
MOTOROLA INC. |
发明人 |
MERWIN, JEFFREY D.;STEPHENS, DENNIS L. |
分类号 |
H02M3/156;H02M7/217;(IPC1-7):H02M7/06 |
主分类号 |
H02M3/156 |
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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