发明名称 |
Fault control circuit for switched power supply |
摘要 |
A voltage source, a transformer and a switching controller are coupled for switched mode generation of a regulated output supply voltage. A switching circuit responsive to an on/off signal turns the power supply on and off by establishing a conductive condition in a conductive path. A fault detector establishes a non-conductive condition in a part of the conduction path responsive to an overload condition. A delay circuit establishes a conductive condition in an auxiliary conduction path for a period of time after the power supply is turned on. The auxiliary conduction path becomes non-conductive when the fault detector establishes a conductive condition in the part of the conduction path. The part of the conduction path remains conductive absent an overload condition. A latch arrangement including the delay circuit maintains the non-conductive condition in the auxiliary conduction path until the power supply is turned off. |
申请公布号 |
AU5442498(A) |
申请公布日期 |
1998.06.03 |
申请号 |
AU19980054424 |
申请日期 |
1997.11.12 |
申请人 |
THOMSON CONSUMER ELECTRONICS, INC |
发明人 |
KEVIN MICHAEL WILLIAMS |
分类号 |
H02M3/28;H02H7/125;H02M1/00;H02M1/32;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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