发明授权
US4292549A Monostable multivibrator and FM detector circuit employing differential
transistor pair (threshold) trigger circuit to avoid interference
signal operation
失效
采用差分晶体管对(阈值)触发电路的Monostable多谐振荡器和FM检测器电路,以避免干扰信号的运行
- 专利标题: Monostable multivibrator and FM detector circuit employing differential transistor pair (threshold) trigger circuit to avoid interference signal operation
- 专利标题(中): 采用差分晶体管对(阈值)触发电路的Monostable多谐振荡器和FM检测器电路,以避免干扰信号的运行
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申请号: US3120申请日: 1979-01-12
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公开(公告)号: US4292549A公开(公告)日: 1981-09-29
- 发明人: Takeshi Wada , Masanori Ienaka , Yasuo Kominami , Yukihiko Miyamoto , Tsuneo Yamada
- 申请人: Takeshi Wada , Masanori Ienaka , Yasuo Kominami , Yukihiko Miyamoto , Tsuneo Yamada
- 申请人地址: JPX Tokyo JPX Tokyo
- 专利权人: Hitachi Ltd.,Trio Kabushiki Kaisha
- 当前专利权人: Hitachi Ltd.,Trio Kabushiki Kaisha
- 当前专利权人地址: JPX Tokyo JPX Tokyo
- 优先权: JPX53-28662 19780315
- 主分类号: H03K3/013
- IPC分类号: H03K3/013 ; H03D3/04 ; H03K3/02 ; H03K3/023 ; H03K3/0232 ; H03K5/04 ; H03K9/06 ; H03K5/08 ; H03K3/033
摘要:
A monostable multivibrator circuit including a time constant circuit which includes a capacitor, an amplifier circuit which receives an output signal of the time constant circuit, and a positive feedback circuit which is connected between an output end of the amplifier circuit and an input end of the time constant circuit, characterized in that a trigger circuit is incorporated in a part of a circuit loop which is constructed of the time constant circuit, the amplifier circuit and the positive feedback circuit, the trigger circuit comprising an emitter-follower transistor which receives a feedback signal, another emitter-follower transistor which receives a trigger signal and whose emitter is connected to an emitter of the first-mentioned emitter-follower transistor in common, and a constant-current circuit which supplies a constant current to the emitters connected in common. Thus, the monostable multivibrator circuit can provide a predetermined pulse signal without any interference attributable to a trigger input circuit.
公开/授权文献
- US5450845A Medical electrode system 公开/授权日:1995-09-19