-
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。
-
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。
-
公开(公告)号：US4247949A
公开(公告)日：1981-01-27
申请号：US10018
申请日：1979-02-06
申请人： Kazuo Watanabe , Masanori Ienaka , Yasuo Kominami , Makoto Homma
发明人： Kazuo Watanabe , Masanori Ienaka , Yasuo Kominami , Makoto Homma
CPC分类号： H03J3/14
摘要： An input signal is applied to a first limiting amplifier circuit, and an output of the first limiting amplifier circuit is applied to a second limiting amplifier circuit. An output of the second limiting amplifier circuit is applied to a third limiting amplifier circuit. The output signal of the first limiting amplifier circuit is applied to a first detector circuit, the output signal of the second limiting amplifier circuit is applied to a second detector circuit, and the output signal of the third limiting amplifier circuit is applied to a third detector circuit. Bias means for stipulating the bias states of the first, second and third detector circuits are coupled to the third detector circuit. An output signal of the third detector circuit is applied to the second detector circuit as a bias signal, and an output signal of the second detector circuit is applied to the first detector circuit as a bias signal. An output signal of the first detector circuit exhibits a level corresponding to the sum among the output signals of the first, second and third limiting amplifier circuits.
摘要翻译： 输入信号被施加到第一限幅放大器电路，并且第一限幅放大器电路的输出被施加到第二限幅放大器电路。 第二限幅放大器电路的输出被施加到第三限幅放大器电路。 第一限幅放大器电路的输出信号被施加到第一检测器电路，第二限幅放大器电路的输出信号被施加到第二检测器电路，并且第三限幅放大器电路的输出信号被施加到第三检测器 电路。 用于规定第一，第二和第三检测器电路的偏置状态的偏置装置耦合到第三检测器电路。 将第三检测器电路的输出信号作为偏置信号施加到第二检测器电路，并将第二检测器电路的输出信号作为偏置信号施加到第一检测器电路。 第一检测器电路的输出信号表现出与第一，第二和第三限幅放大器电路的输出信号之和相对应的电平。
-
公开(公告)号：US4236117A
公开(公告)日：1980-11-25
申请号：US008848
申请日：1979-02-02
申请人： Kazuo Watanabe , Masanori Ienaka , Yasuo Kominami , Makoto Homma
发明人： Kazuo Watanabe , Masanori Ienaka , Yasuo Kominami , Makoto Homma
CPC分类号： H03D3/22 , H03D3/14 , H03D1/229 , H03D13/008 , H03D2200/0009 , H03D2200/0049
摘要： An FM detector is constructed of a phase shift network and an analog multiplier. The analog multiplier includes a differential amplifier circuit and a phase detector circuit. The differential amplifier circuit includes differential pair transistors which are driven by FM intermediate frequency signals. A base emitter junction of a diode-connected transistor is connected across a base and an emitter of one of the differential pair transistors. The base of the one transistor and a base of the diode-connected transistor are connected to an emitter of an emitter-follower transistor, and the FM intermediate frequency signal is applied to a base of the emitter-follower transistor. Noise which develops in the base of the differential pair transistor or the base of the diode-connected transistor is reduced by the low output impedance of the emitter-follower transistor, so that the signal-to-noise ratio of the FM detector is improved.
摘要翻译： FM检波器由相移网络和模拟乘法器构成。 模拟乘法器包括差分放大器电路和相位检测器电路。 差分放大器电路包括由FM中频信号驱动的差分对晶体管。 二极管连接的晶体管的基极发射极结连接在差分对晶体管之一的基极和发射极之间。 一个晶体管的基极和二极管连接的晶体管的基极连接到发射极跟随晶体管的发射极，并且FM中频信号被施加到发射极跟随器晶体管的基极。 在差分对晶体管的基极或二极管连接的晶体管的基极上产生的噪声通过发射极跟随晶体管的低输出阻抗而降低，使得FM检测器的信噪比得以改善。
-
公开(公告)号：US4362998A
公开(公告)日：1982-12-07
申请号：US7981
申请日：1979-01-31
申请人： Kazuo Watanabe , Masanori Ienaka , Yasuo Kominami , Makoto Homma
发明人： Kazuo Watanabe , Masanori Ienaka , Yasuo Kominami , Makoto Homma
CPC分类号： H03D3/22 , H03D3/14 , H03D1/229 , H03D13/008 , H03D2200/0009 , H03D2200/0049
摘要： An FM detector is constructed of a phase shift network and an analog multiplier. The analog multiplier includes a differential amplifier circuit and a phase detector circuit. The differential amplifier circuit includes differential pair transistors which are driven by FM intermediate frequency signals. One of the differential pair transistors has another transistor connected thereto which is also driven by the FM intermediate frequency signal. A collector signal of either one of the differential pair transistors is applied to the phase detector circuit through the phase shift network, while a collector signal of the other transistor is directly applied to the phase detector circuit. An emitter of the one transistor and an emitter of the other transistor are connected through resistors, whereby the signal-to-noise ratio of the FM detector is improved.
摘要翻译： FM检波器由相移网络和模拟乘法器构成。 模拟乘法器包括差分放大器电路和相位检测器电路。 差分放大器电路包括由FM中频信号驱动的差分对晶体管。 差分对晶体管中的一个具有连接到其上的另一个晶体管，其也由FM中频信号驱动。 差分对晶体管中的任一个的集电极信号通过相移网络施加到相位检测器电路，而另一个晶体管的集电极信号被直接施加到相位检测器电路。 一个晶体管的发射极和另一个晶体管的发射极通过电阻连接，从而提高了FM检测器的信噪比。
-
6.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。
-
7.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。
-
公开(公告)号：US4236252A
公开(公告)日：1980-11-25
申请号：US10019
申请日：1979-02-06
摘要： A first intermediate frequency amplifier stage which executes the amplitude limiting operation of a double-converting FM tuner employing the integrated circuit technology is constructed in the form of an integrated circuit. An output signal of the first intermediate frequency amplifier stage is put into a square pulse waveform on the basis of the amplitude limiting operation, and therefore has higher harmonic components of high frequencies. When the higher harmonic components are injected into a second mixer circuit in a second frequency converter circuit, various higher harmonic components which have frequencies higher than a second intermediate frequency appear at the output of the second mixer conduit. When the higher harmonic components at the output of the second mixer circuit are injected into an FM demodulator circuit, beat trouble is induced. The second frequency converter circuit is also constructed in the form of an integrated circuit, and filter means to pass the fundamental waves of a first intermediate frequency signal and to reject the higher harmonic frequency components thereof is connected between the output of the first intermediate frequency amlifier stage executing the amplitude limiting operation and the input of the second mixer circuit, whereby the beat trouble can be prevented.
摘要翻译： 采用集成电路技术执行双转换FM调谐器的幅度限制操作的第一中频放大器级以集成电路的形式构成。 第一中频放大器级的输出信号在幅度限制运算的基础上被置入方波脉冲波形，因此具有高频谐波分量。 当在第二变频器电路中将高次谐波分量注入第二混频器电路时，在第二混频器导管的输出处出现具有高于第二中频频率的各种高次谐波分量。 当第二混频器电路的输出端的高次谐波分量被注入到FM解调器电路中时，会引起节拍故障。 第二变频器电路也以集成电路的形式构成，滤波器装置将第一中频信号的基波通过，并将其高次谐波频率成分排除在第一中频放大器的输出端 执行振幅限制操作和第二混频器电路的输入，从而可以防止节拍故障。
-
公开(公告)号：US4139738A
公开(公告)日：1979-02-13
申请号：US831520
申请日：1977-09-08
申请人： Masanori Ienaka , Yasuo Kominami
发明人： Masanori Ienaka , Yasuo Kominami
CPC分类号： H03D1/2227
摘要： In a multiplex decoder circuit comprising two pairs of transistor differential circuits driven by switching signals of a 38 kHz subcarrier signal, for separating a stereo composite signal into left and right channel signals, a differential amplifier formed of a pair of transistors connected to the respective differential circuits for amplifying and injecting the composite signal, and a constant current source, at least one of the pair of differential transistor amplifiers being supplied with the composite signal is formed of a negative feedback amplifier to suppress the output distortion of the transistor amplifier due to variations in the emitter resistance of the transistor amplifier with respect to the variations of the input stereo composite signal. As a result, the waveform distortion of the separated left and right channel signals is reduced.
摘要翻译： 在包括由38kHz副载波信号的切换信号驱动的两对晶体管差分电路的多路解码器电路中，用于将立体声合成信号分离成左右声道信号，由连接到相应差分的一对晶体管形成的差分放大器 用于放大和注入复合信号的电路以及恒流源，提供复合信号的一对差分晶体管放大器中的至少一个由负反馈放大器形成，以抑制由于变化引起的晶体管放大器的输出失真 在晶体管放大器的发射极电阻相对于输入立体声复合信号的变化。 结果，分离的左右声道信号的波形失真减小。
-
10.发明授权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
公开(公告)号：US4292549A
公开(公告)日：1981-09-29
申请号：US3120
申请日：1979-01-12
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.
摘要翻译： 一种单稳态多谐振荡器电路，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的放大器电路和连接在放大器电路的输出端和放大器电路的输入端之间的正反馈电路 时间常数电路，其特征在于，触发电路被并入由时间常数电路，放大器电路和正反馈电路构成的电路回路的一部分中，触发电路包括发射极跟随器晶体管，其接收反馈 信号，另一发射极跟随器晶体管，其接收触发信号并且其发射极共同连接到所述射极跟随器晶体管的发射极;以及恒定电流电路，其向共同连接的发射极提供恒定电流。 因此，单稳态多谐振荡器电路可以提供预定的脉冲信号，而不受归因于触发输入电路的任何干扰。
-
-
-
-
-
-
-
-
-
搜索结果
25 条记录 (耗时 0.02 秒)
