发明名称 |
Power supply apparatus and method for a backlight system |
摘要 |
A power supply system includes a transformer having a primary winding on its primary side for coupling to a power source and one or more secondary windings on its secondary side. A first control circuit is disposed on the primary side of the transformer for controlling a current flow in the primary winding. A second control circuit disposed on the secondary side of the transformer, and the second control circuit is configured to provide a regulated output voltage. In the power supply system, the first control circuit is configured to generate a control signal for controlling the current flow in the primary winding without using a feedback control signal from the secondary side of the transformer.
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申请公布号 |
US8525428(B2) |
申请公布日期 |
2013.09.03 |
申请号 |
US20110986960 |
申请日期 |
2011.01.07 |
申请人 |
CHEN FAN;WU XIN;SUN CHAOQUN;WU QANQING;BCD SEMICONDUCTOR MANUFACTURING CO. LTD. |
发明人 |
CHEN FAN;WU XIN;SUN CHAOQUN;WU QANQING |
分类号 |
H05B37/02;G01F1/00;H02M3/335;H05B37/00;H05B39/00;H05B39/02;H05B39/04;H05B41/00;H05B41/16;H05B41/24;H05B41/36 |
主分类号 |
H05B37/02 |
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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