发明名称 |
Switching power supply utilizing switch-selectable resistors to determine output voltage |
摘要 |
A switching power supply includes a source of DC voltage and a transformer having primary and secondary windings. A switching circuit is coupled between the DC voltage and the primary winding to provide alternating current to the primary winding. A rectifier circuit is coupled to the secondary winding to provide a DC output voltage. A controller circuit controls the switching circuit to modulate the alternating current provided to the primary winding. A circuit receives a first input signal having a magnitude which is determined by the DC output voltage and a second input signal having a magnitude which is determined by a selected position of a multiposition switch. An output of the circuit generates a feedback signal which is coupled to the controller circuit.
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申请公布号 |
US2007279952(A1) |
申请公布日期 |
2007.12.06 |
申请号 |
US20070891187 |
申请日期 |
2007.08.09 |
申请人 |
COMARCO WIRELESS TECHNOLOGIES, INC. |
发明人 |
LANNI THOMAS W. |
分类号 |
H02M3/335;G06F1/26;H01R13/24;H01R13/66;H02J7/00;H02J7/02;H02M1/00;H02M1/42;H02M3/00;H02M3/28;H02M3/337;H02M3/338;H05K1/16 |
主分类号 |
H02M3/335 |
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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