发明授权
- 专利标题: Stabilizing power supply apparatus
- 专利标题(中): 稳定供电装置
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申请号: US452139申请日: 1982-12-22
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公开(公告)号: US4460955A公开(公告)日: 1984-07-17
- 发明人: Masayuki Hattori , Shigeo Nakamura
- 申请人: Masayuki Hattori , Shigeo Nakamura
- 申请人地址: JPX Tokyo
- 专利权人: Fanuc Ltd.
- 当前专利权人: Fanuc Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX56-211459 19811225
- 主分类号: G05F1/32
- IPC分类号: G05F1/32 ; G05F1/38 ; G05F1/44 ; H02P13/24
摘要:
A stabilizing power supply apparatus including, as a switching element, a magnetic amplifier supplied with a rectangular wave voltage produced by an inverter and controlled by a reset current. An error sensing circuit senses a difference between the output voltage of the magnetic amplifier and a reference voltage to produce an error signal corresponding to the sensed difference. An amplifier circuit amplifies the error signal into the reset current for the magnetic amplifier. The amplifier circuit includes a NPN-type transistor for amplifying the control current into the reset current and first and second diodes. The first diode has an anode terminal connected to a negative power supply line and a cathode terminal connected to the collector of the transistor in order that charge will not accumulate on the transistor base. The second diode has an anode terminal connected to the emitter of the transistor and a cathode terminal connected to the magnetic amplifier. The reset current is applied to the magnetic amplifier through the second diode to hold the output voltage of the apparatus constant by regulating the on/off timing of the magnetic amplifier in accordance with the difference between the magnitude of the output voltage and the magnitude of the reference voltage.
公开/授权文献
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