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公开(公告)号：US4283674A
公开(公告)日：1981-08-11
申请号：US59030
申请日：1979-07-19
CPC分类号： G05F3/18
摘要： This invention relates to a constant voltage output circuit using, as its reference potential source, power source feed terminals for feeding a power source voltage to a reference potential source of a given circuit. The constant voltage output circuit includes a series circuit of an npn transistor and a pnp transistor interposed between the reference potential source of the given circuit and the power source feed terminals, means for biasing the base potential of the pnp transistor by a predetermined potential with respect to the potential of the power source feed terminals, and an emitter follower circuit disposed in the collector output circuit of the npn transistor of the series circuit, and forming a negative feed-back circuit.
摘要翻译： 本发明涉及使用作为其参考电位源的用于将电源电压馈送到给定电路的参考电位源的电源馈电端子的恒压输出电路。 恒压输出电路包括插入在给定电路的参考电位源和电源馈电端子之间的npn晶体管和pnp晶体管的串联电路，用于将pnp晶体管的基极电位偏置预定电位的装置 电源馈电端子的电位和设置在串联电路的npn晶体管的集电极输出电路中的射极跟随器电路，并形成负反馈电路。
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公开(公告)号：US4272709A
公开(公告)日：1981-06-09
申请号：US58872
申请日：1979-07-18
CPC分类号： H02P7/2885 , Y10S388/902 , Y10S388/934
摘要： The present invention is related to a temperature-compensated circuit for controlling the drive of a motor, comprising a differential comparator for comparing a running-speed signal of a motor with a reference signal, and a feedback amplifier having a differential amplifier to which is given an input offset.
摘要翻译： 本发明涉及一种用于控制电动机驱动的温度补偿电路，包括用于将电动机的运行速度信号与参考信号进行比较的差分比较器，以及具有给定的差分放大器的反馈放大器 输入偏移。
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公开(公告)号：US4264873A
公开(公告)日：1981-04-28
申请号：US56422
申请日：1979-07-10
CPC分类号： H03F3/45085 , H03F3/45 , H03F2203/45388 , H03F2203/45462 , H03F2203/45496 , H03F2203/45508 , H03F2203/45611 , H03F2203/45612 , H03F2203/45652 , H03F2203/45656
摘要： A differential amplification is disclosed which comprises differential paired transistors. The direct bias current flowing in the differential paired transistors is determined by a constant current flowing from a first constant current circuit connected to the emitters of the differential paired transistors. The collector current of one of the differential paired transistors is caused to flow as an input current in a high-precision current mirror circuit. The current value of the constant current flowing in the first constant current circuit is set at 2Io. Since a direct base current Ib flows in the differential paired transistors, the current value of the collector current of one of the differential paired transistors is (Io-Ib). Accordingly, the high-precision current mirror circuit generates an output current of a current value of (Io-Ib) at the output terminal thereof. The differential amplification circuit includes a second constant current circuit having a current value Io corresponding to 1/2 of the current value of the constant current flowing in the first constant current circuit. A bias transistor is connected between the high-precision current mirror circuit and the second constant current circuit, and the direct base current Ib flows in this bias transistor. Accordingly, in the equilibrium state between the differential paired transistors, the output current appearing at the output terminal of the high precision current mirror circuit becomes zero, and the offset output current can be eliminated or moderated.
摘要翻译： 公开了包括差分成对晶体管的差分放大器。 在差分成对晶体管中流动的直流偏置电流由连接到差分成对晶体管的发射极的第一恒定电流电流的恒定电流确定。 导致差分成对晶体管之一的集电极电流作为高精度电流镜电路中的输入电流流动。 在第一恒流电路中流动的恒定电流的电流值设定为2Io。 由于直流基极电流Ib流入差分成对晶体管，因此差分成对晶体管之一的集电极电流的电流值为（Io-Ib）。 因此，高精度电流镜电路在其输出端产生电流值（Io-Ib）的输出电流。 差分放大电路包括具有对应于在第一恒流电路中流动的恒定电流的电流值的1/2的电流值I 1的第二恒流电路。 偏置晶体管连接在高精度电流镜电路和第二恒流电路之间，直流基极电流Ib流入该偏置晶体管。 因此，在差分成对晶体管之间的平衡状态下，出现在高精度电流镜电路的输出端的输出电流变为零，并且可以消除或缓和偏移输出电流。
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公开(公告)号：US4313145A
公开(公告)日：1982-01-26
申请号：US83657
申请日：1979-10-11
IPC分类号： G01R19/165 , H02H3/50 , H02H7/20 , H03F1/42 , H03F1/52
CPC分类号： H03F1/52 , G01R19/165 , H02H3/50
摘要： An output from an OCL type power output circuit is applied to a loudspeaker load through a switching means such as a relay. A first detector circuit and a second detector circuit detect a first operating status (e.g., output d.c. level) and a second operating status (e.g., output current level of an output transistor) of the OCL type power output circuit, respectively. The detection output signals of the first detector circuit and the second detector circuit are respectively applied to a first detecting transistor and a second detecting transistor. In the normal operation status of the OCL type power output circuit, the first detecting transistor and the second detecting transistor are respectively biased into "on" states by the first detector circuit and the second detector circuit so as to permit predetermined currents to flow. When the first and second detecting transistors are in their "on" states they control a driving transistor into an "on" state. Then, the switching means, such as a relay, is controlled into a closed state. In the abnormal operation status of the OCL type power output circuit, the first detector circuit or the second detector circuit controls the first detecting transistor or the second detecting transistor into an "off" state, so that the switching means, such as a relay, is controlled into an open state.
摘要翻译： OCL型电力输出电路的输出通过诸如继电器的开关装置施加到扬声器负载。 第一检测器电路和第二检测器电路分别检测OCL型功率输出电路的第一操作状态（例如，输出直流电平）和第二操作状态（例如输出晶体管的输出电流电平）。 第一检测器电路和第二检测器电路的检测输出信号分别施加到第一检测晶体管和第二检测晶体管。 在OCL型功率输出电路的正常工作状态下，第一检测电路和第二检测晶体管分别由第一检测电路和第二检测电路偏置成“接通”状态，以允许预定电流流动。 当第一和第二检测晶体管处于“导通”状态时，它们将驱动晶体管控制为“导通”状态。 然后，诸如继电器之类的开关装置被控制成闭合状态。 在OCL型电力输出电路的异常运行状态下，第一检测电路或第二检测电路将第一检测晶体管或第二检测晶体管控制为“关”状态，使得诸如继电器之类的开关装置， 被控制成打开状态。
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公开(公告)号：US4276442A
公开(公告)日：1981-06-30
申请号：US25039
申请日：1979-03-29
摘要： The output derived from an electric circuit such as an OCL type power amplifier circuit is delivered to a load such as a speaker, through a switching means such as a relay. When the operation of the electric circuit has come out of a predetermined range of operation, the switching means is operated to break the connection between the electric circuit and the load. A detection circuit for detecting the operation of the electric circuit includes a detecting transistor constructed in a semiconductor integrated circuit. The detecting transistor is connected at its base to the input terminal for external connection of the semiconductor integrated circuit, so as to receive a signal representative of the operation state of the electric circuit. The detecting transistor is so biased as to allow a predetermined electric current to flow therethrough, when the electric circuit is operating within the predetermined range of operation. However, in case of a breakdown of the detecting transistor, or when the operation of the electric circuit has come out of the predetermined range of operation, the current flowing through the detecting transistor is changed from the predetermined level. This change is transmitted to a driving transistor which is adapted to break the switching means such as a relay.
摘要翻译： 从诸如OCL型功率放大器电路的电路得到的输出通过诸如继电器的开关装置传送到诸如扬声器的负载。 当电路的操作已经超出预定的操作范围时，切换装置被操作以断开电路和负载之间的连接。 用于检测电路的操作的检测电路包括构造在半导体集成电路中的检测晶体管。 检测晶体管的基极连接到用于半导体集成电路的外部连接的输入端子，以便接收表示电路的工作状态的信号。 当电路在预定操作范围内运行时，检测晶体管被偏压以允许预定的电流流过。 然而，在检测晶体管的击穿的情况下，或者当电路的操作已经超出预定操作范围时，流过检测晶体管的电流从预定电平变化。 该变化被传送到适于断开诸如继电器的开关装置的驱动晶体管。
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公开(公告)号：US4473852A
公开(公告)日：1984-09-25
申请号：US412001
申请日：1982-08-27
CPC分类号： H03G9/025
摘要： Conventional Dolby B-type or C-type noise reduction systems respond sensitively to an A.C. bias signal during recording onto a magnetic tape. As a result, the system might exhibit a large encode error. In order to reduce such encode error, the gain - frequency characteristic control sensitivity of a side chain in the system to the A.C. bias signal to be supplied to a recording head is set at a value smaller than that of the gain - frequency characteristic control sensitivity of the side chain to an encode input signal at an audio frequency. Such a reduction of the encode error is achieved by connecting a bias trap circuit to a gain control amplifier included in the side chain.
摘要翻译： 传统的杜比B型或C型降噪系统在记录到磁带上时敏感地响应于A.C.偏差信号。 因此，系统可能会出现较大的编码错误。 为了减少这种编码误差，系统中侧链的增益 - 频率特性控制灵敏度被提供给记录头的AC偏置信号被设置为小于增益 - 频率特性控制灵敏度 的侧链到音频的编码输入信号。 通过将偏置捕获电路连接到侧链中包括的增益控制放大器来实现编码误差的这种减少。
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公开(公告)号：US4412189A
公开(公告)日：1983-10-25
申请号：US262814
申请日：1981-05-12
申请人： Yasuo Kominami , Tetsuo Sato , Yuichi Ohkubo
发明人： Yasuo Kominami , Tetsuo Sato , Yuichi Ohkubo
CPC分类号： H03G9/025
摘要： Either an input signal of a combining network or an output signal of an inverter arranged on a main path is fed to a side path through a mode switch in a switchable signal compressor/signal expander. Since an input terminal of a control amplifier is connected to a variable filter without passing through a signal amplifier, the deviation of the detection characteristic of a rectifier and integrator attributed to D.C. offset voltages of the signal amplifier and the control amplifier can be reduced. On the other hand, a switchable signal compressor/signal expander in another aspect of performance has a reference voltage generator for producing a D.C. reference voltage, and the output D.C. level of the control amplifier is maintained at a level approximate to the D.C. reference voltage. The other ends of first and second capacitors of the rectifier and integrator are also supplied with the D.C. reference voltage, so that the fluctuation of the detection characteristic of the rectifier and integrator ascribable to the fluctuation of the D.C. reference voltage is reduced.
摘要翻译： 组合网络的输入信号或布置在主路径上的反相器的输出信号被馈送到可切换信号压缩器/信号扩展器中的模式开关的侧路径。 由于控制放大器的输入端子连接到可变滤波器而不通过信号放大器，所以可以减小归因于信号放大器和控制放大器的直流偏移电压的整流器和积分器的检测特性的偏差。 另一方面，另一方面的可切换信号压缩器/信号扩展器具有用于产生直流参考电压的参考电压发生器，并且控制放大器的输出直流电平保持在接近直流参考电压的电平。 整流器和积分器的第一和第二电容器的另一端还具有直流参考电压，从而降低归因于直流参考电压的波动的整流器和积分器的检测特性的波动。
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8.发明授权Monostable multivibrator and FM detector circuit employing common emitter transistor amplifier with plural emitter resistors to avoid circuit operation from signal noise 失效采用具有多个发射极电阻的公共发射极晶体管放大器的Monostable多谐振荡器和FM检波器电路，以避免信号噪声的电路运行
公开(公告)号：US4282448A
公开(公告)日：1981-08-04
申请号：US969085
申请日：1978-12-13
摘要： This invention discloses a monostable multivibrator which is useful for an FM detector circuit of a pulse count system. The monostable multivibrator has a time constant circuit which includes a capacitor, an amplifier circuit which receives an output of the time constant circuit, a positive feedback circuit which is connected between an output end of the amplifier circuit and an input end of the time constant circuit, and a trigger terminal which is disposed in a circuit loop constructed of the time constant circuit, the amplifier circuit and the positive feedback circuit; and is characterized in that the amplifier circuit is a differential amplifier which is made up of a pair of transistors connected in the differential form, the transistors being connected in common through emitter resistances connected in series with respective emitters thereof. Thus, the monostable multivibrator can provide pulse signals of a fixed pulse width without being influenced by noise.
摘要翻译： 本发明公开了一种可用于脉冲计数系统的FM检测器电路的单稳态多谐振荡器。 单稳态多谐振荡器具有时间常数电路，其包括电容器，接收时间常数电路的输出的放大器电路，连接在放大器电路的输出端和时间常数电路的输入端之间的正反馈电路 以及设置在由时间常数电路，放大电路和正反馈电路构成的电路回路中的触发端子; 并且其特征在于放大电路是由以差分形式连接的一对晶体管构成的差分放大器，晶体管通过与其各自的发射极串联连接的发射极电阻共同连接。 因此，单稳态多谐振荡器可以提供固定脉冲宽度的脉冲信号，而不受噪声的影响。
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9.发明授权Circuit for preventing output clipping of R.F. stage in radio receiver 失效用于防止R.F.的输出限幅的电路 无线电接收机的舞台
公开(公告)号：US4030035A
公开(公告)日：1977-06-14
申请号：US617638
申请日：1975-09-29
申请人： Masanori Ienaka , Yasuo Kominami , Yukio Suzuki , Masami Kawamura
发明人： Masanori Ienaka , Yasuo Kominami , Yukio Suzuki , Masami Kawamura
CPC分类号： H03G3/3068
摘要： In a receiver comprising a radio frequency amplifier stage, a frequency converter stage, an intermediate frequency amplifier stage and a detector, so that the gains of the radio frequency amplifier stage and the intermediate frequency amplifier stage are automatically controlled by an AGC voltage derived from the detector, the improvement further comprising a voltage comparator which compares a signal amplitude value of the radio frequency amplifier stage and a predetermined reference value and which provides a detection output signal when the former value becomes greater than the latter value, the gain of the radio frequency amplifier stage being reduced by the detection output signal so as to prevent the output clipping of the radio frequency amplifier stage.
摘要翻译： 在包括射频放大器级，频率转换器级，中频放大器级和检测器的接收器中，使得射频放大器级和中频放大级的增益由源自 所述改进还包括电压比较器，其比较所述射频放大器级的信号幅度值和预定参考值，并且当所述前一值变得大于后一值时提供检测输出信号，所述射频增益 放大器级被检测输出信号减小，以防止射频放大器级的输出限幅。
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10.发明授权Monostable multivibrator circuit and FM detector circuit employing predetermined load resistance and constant current to increase response rate of differential transistor pair 失效单稳态多谐振荡器电路和FM检测电路采用预定的负载电阻和恒定电流来提高差分晶体管对的响应速率
公开(公告)号：US4297601A
公开(公告)日：1981-10-27
申请号：US3962
申请日：1979-01-16
申请人： Takeshi Wada , Yasuo Kominami , Yukihiko Miyamoto , Tsuneo Yamada
发明人： Takeshi Wada , Yasuo Kominami , Yukihiko Miyamoto , Tsuneo Yamada
IPC分类号： H03K3/013 , H03D3/04 , H03K3/02 , H03K3/023 , H03K3/0232 , H03K5/04 , H03K9/06 , H03K5/12 , H03K3/284
摘要： A monostable multivibrator circuit is disclosed. It is characterized by comprising a time constant circuit which includes a capacitor, an amplifier circuit which receives an output signal of the time constant circuit and in which a signal amplifying transistor operates in the non-saturated state, a positive feedback circuit which is connected between the output end of the amplifier circuit and the input end of the time constant circuit and in which a signal amplifying transistor operates in the non-saturated state, and a trigger terminal which is disposed in a circuit loop constructed of the time constant circuit, the amplifier circuit and the positive feedback circuit. Further, it is characterized in that a signal which is produced by the shift from the non-conductive state to the conductive state of the signal amplifying transistor connected to an output terminal of the positive feedback circuit is supplied to the time constant circuit as a positive feedback signal.
摘要翻译： 公开了一种单稳态多谐振荡器电路。 其特征在于包括时间常数电路，其包括电容器，接收时间常数电路的输出信号并且其中信号放大晶体管工作在非饱和状态的放大器电路，正反馈电路连接在 放大器电路的输出端和时间常数电路的输入端，信号放大晶体管工作在非饱和状态，触发端子设置在由时间常数电路构成的电路环路中， 放大电路和正反馈电路。 此外，其特征在于，通过从连接到正反馈电路的输出端子的信号放大晶体管的非导通状态转变为导通状态而产生的信号作为正值提供给时间常数电路 反馈信号。
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