发明名称 |
POWER SUPPLY UNIT |
摘要 |
PROBLEM TO BE SOLVED: To provide a downsized and inexpensive power supply unit having an inductor with a simple structure requiring no secondary winding. SOLUTION: This power supply unit 100 includes: a diode bridge 2 which outputs a pulsating voltage including a pulsating component from a positive electrode by rectifying closed AC power supply; a boosting chopper circuit 70 which stores energy for boosting the pulsating voltage output by the diode bridge 2 and includes an inductor 7 equipped with an intermediate terminal c for the output of a driving signal for driving other elements at some midpoint of a winding; a current-limiting element 3 connected between the diode bridge 2 and the inductor 7; and a switching element 4 which is connected in parallel to the current-limiting element 3 and turns on based on the driving signal output from the intermediate terminal c. COPYRIGHT: (C)2007,JPO&INPIT
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申请公布号 |
JP2007159265(A) |
申请公布日期 |
2007.06.21 |
申请号 |
JP20050350611 |
申请日期 |
2005.12.05 |
申请人 |
MITSUBISHI ELECTRIC CORP;MITSUBISHI ELECTRIC LIGHTING CORP |
发明人 |
TAKAHASHI OSAMU;OKUDA NORIAKI |
分类号 |
H02M3/155;H02M7/06;H02M7/12 |
主分类号 |
H02M3/155 |
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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