发明授权
- 专利标题: Voltage resonance type switching power source apparatus
- 专利标题(中): 电压谐振型开关电源装置
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申请号: US178654申请日: 1988-04-07
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公开(公告)号: US4866589A公开(公告)日: 1989-09-12
- 发明人: Masayoshi Satoo , Norikazu Tokunaga , Hisao Amano , Teruaki Odaka , Yasuo Matsuda
- 申请人: Masayoshi Satoo , Norikazu Tokunaga , Hisao Amano , Teruaki Odaka , Yasuo Matsuda
- 申请人地址: JPX Tokyo JPX Chiba
- 专利权人: Hitachi, Ltd.,Hitachi Device Engineering Co., Ltd.
- 当前专利权人: Hitachi, Ltd.,Hitachi Device Engineering Co., Ltd.
- 当前专利权人地址: JPX Tokyo JPX Chiba
- 优先权: JPX62-84547 19870408; JPX62-88781 19870413; JPX62-138769 19870602
- 主分类号: H02M3/335
- IPC分类号: H02M3/335 ; H02M7/217 ; H05B6/66
摘要:
In a voltage resonance type switching power source apparatus, which has a step-up transformer, a resonance capacitor connected in series with a primary winding of the transformer, and a transistor connected in parallel with the capacitor to cause a resonant oscillation current by the on-off operation thereof, an on signal of the transistor is produced in synchronism with a second signal, which is obtained by delaying a first signal depending on a voltage induced in a detecting winding provided in the transformer by a predetermined delay time.