公开(公告)号：US4508979A

公开(公告)日：1985-04-02

申请号：US364335

申请日：1982-04-01

Applicant: Hisashi Togari

Inventor： Hisashi Togari

IPC: H03F3/30 ,  H03K17/16 ,  H03K17/66 ,  H03K19/00 ,  H03K19/082 ,  H03K19/088 ,  H03K5/13 ,  H03K3/01

CPC classification number: H03K19/001 ,  H03F3/3096 ,  H03K19/082

Abstract: The present invention relates to a single-ended push-pull type inverter. Such inverter in the prior art generated a large through-current flowing through series-connected output transistors. This large through-current caused not only a large power consumption but also an instability of the entire circuit including the inverter. The present invention improves these disadvantages by inserting a phase inverter stage having a current regulating function just before the output transistors and includes a first transistor having a base receiving an input signal, the phase inverter stage having an input end connected to the collector of the first transistor, a second and a third transistor connected in series, the bases of the second and third transistors being electrically connected, respectively, to the collector of the first transistor and output end of the phase inverter stage and an output terminal connected to the circuit portion connecting the second and third transistors.

Abstract translation: 本发明涉及单端推挽式逆变器。 现有技术中的这种反相器产生流过串联输出晶体管的大的通流电流。 这种大的贯通电流不仅引起大的功率消耗，而且引起包括逆变器的整个电路的不稳定性。 本发明通过在输出晶体管之前插入具有电流调节功能的相位逆变器级来改善这些缺点，并且包括具有接收输入信号的基极的第一晶体管，该相位逆变器级的输入端连接到第一 晶体管，串联连接的第二和第三晶体管，第二和第三晶体管的基极分别电连接到第一晶体管的集电极和相位逆变器级的输出端，以及连接到电路部分的输出端 连接第二和第三晶体管。

公开(公告)号：US4199731A

公开(公告)日：1980-04-22

申请号：US973670

申请日：1978-12-27

Applicant: David L. Taylor ,  Stephen A. Harris

Inventor： David L. Taylor ,  Stephen A. Harris

IPC: G11C7/10 ,  G11C11/34 ,  H03F3/213 ,  H03F3/30 ,  H03K5/02 ,  H03F3/26 ,  B01J17/00

CPC classification number: H03K5/02 ,  G11C7/1051 ,  G11C7/1057 ,  H03F3/213 ,  H03F3/3096

Abstract: An amplifier for use as on the output buffer for semiconductor memories including an amorphous element added to a push-pull configuration to allow conversion between push-pull and open collector nonvolatile configurations by electrically altering the impedence of the amorphous element.

Abstract translation: 一种用于半导体存储器的输出缓冲器的放大器，包括添加到推挽配置中的非晶元件，以通过电子改变非晶元件的阻抗来实现推挽式和集电极开路非易失性配置之间的转换。

公开(公告)号：US3454889A

公开(公告)日：1969-07-08

申请号：US3454889D

申请日：1966-01-03

Applicant: GEN ELECTRIC

Inventor： PETRIE ADELORE F

IPC: H03F3/30 ,  H03F3/26

CPC classification number: H03F3/3096

公开(公告)号：US5952881A

公开(公告)日：1999-09-14

申请号：US839231

申请日：1997-04-24

Applicant: Giorgio Chiozzi ,  Sandro Storti ,  Claudio Tavazzani

Inventor： Giorgio Chiozzi ,  Sandro Storti ,  Claudio Tavazzani

IPC: H03F3/45 ,  H03F3/30 ,  H03F3/26

CPC classification number: H03F3/3096

Abstract: A power stage for an operational amplifier includes an output stage, a current source stage, and a gain stage. The output stage is formed by first and second NPN output transistors arranged in a Totem-Pole configuration, each having respective resistors connected between their respective base and emitter terminals. The output transistors are biased in class AB by a quiescent current supplied by the current source stage and are controlled dynamically by the gain stage. The gain stage includes an NPN gain transistor having a collector terminal connected to the base terminal of the first output transistor and an emitter terminal connected to the base terminal of the second output transistor.

Abstract translation: 用于运算放大器的功率级包括输出级，电流源级和增益级。 输出级由以图腾极配置布置的第一和第二NPN输出晶体管形成，每个具有连接在它们各自的基极和发射极端子之间的相应电阻器。 输出晶体管通过由电流源级提供的静态电流在AB类中偏置，并由增益级动态控制。 增益级包括具有与第一输出晶体管的基极端子连接的集电极端子和连接到第二输出晶体管的基极端子的发射极端子的NPN增益晶体管。

公开(公告)号：US3855540A

公开(公告)日：1974-12-17

申请号：US42441873

申请日：1973-12-13

Applicant: RCA CORP

Inventor： LEIDICH A

IPC: H03F1/42 ,  H03F1/52 ,  H03F3/20 ,  H03F3/213 ,  H03F3/30 ,  H03F3/45 ,  H03G3/10 ,  H03F3/26

CPC classification number: H03F1/52 ,  H03F3/3096 ,  H03F3/45479

Abstract: An amplifier having output transistors with collector-to-emitter paths connected in series for application of operating potential and connected in push-pull for signal, is afforded over-current protection by limiting the sum of the base currents available to the output transistors. This sum current is applied to a node to which the base electrode of one of the output transistors is connected, and the distribution of this current between the base electrodes of two output transistors is controlled by a signalresponsive variable-conduction device connected between the base electrodes of the two output transistors. Class AB operation of the output transistor may be obtained by connecting separate nonlinear resistance networks in parallel with each of their base emitter junctions.

Abstract translation: 具有串联连接用于施加工作电位并以推挽信号连接的集电极到发射极路径的输出晶体管的放大器通过限制可用于输出晶体管的基极电流之和来提供过电流保护。 该和电流被施加到一个输出晶体管的基极连接到的节点上，并且两个输出晶体管的基极之间的该电流的分布由连接在两个输出晶体管之间的信号响应可变导电器件控制 两个输出晶体管的基极。 可以通过将单独的非线性电阻网络与其每个基极发射极结并联连接来获得输出晶体管的AB类操作。

公开(公告)号：US3728638A

公开(公告)日：1973-04-17

申请号：US3728638D

申请日：1971-07-13

Applicant: HITACHI LTD

Inventor： SEKI K ,  OKUDA S

IPC: H03F1/52 ,  H03F3/30 ,  H03F3/42

CPC classification number: H03F1/52 ,  H03F3/3096

Abstract: A transistorized power amplifier circuit comprises an input transistor circuit capable of class-A amplifier operation according to base input and collector output, a first and a second output transistor, and a diode coupling circuit receiving the collector output from the input transistor circuit as an input signal thereof for alternatively driving the output transistors into conduction at each successive half cycle of the input signal. A DC negative feedback circuit is connected between the output terminal of the output transistors and the emitter of the input transistor, and all the transistors are of the same conduction characteristic.

Abstract translation: 晶体管功率放大器电路包括能够根据基极输入和集电极输出进行A类放大器操作的输入晶体管电路，第一和第二输出晶体管以及接收来自输入晶体管电路的集电极输出的二极管耦合电路作为输入 信号，用于在输入信号的每个连续半周期交替地驱动输出晶体管导通。 直流负反馈电路连接在输出晶体管的输出端和输入晶体管的发射极之间，所有晶体管具有相同的导通特性。

公开(公告)号：US3439284A

公开(公告)日：1969-04-15

申请号：US3439284D

申请日：1965-10-19

Applicant: WARWICK ELECTRONICS INC

Inventor： CARLSON GEORGE R

IPC: H03F3/30 ,  H03F3/26 ,  H03G3/30

CPC classification number: H03F3/3096

公开(公告)号：US3246251A

公开(公告)日：1966-04-12

申请号：US31718463

申请日：1963-10-18

Applicant: AMPEX

Inventor： SHEPPARD DAVID H

IPC: H03F3/30

CPC classification number: H03F3/30 ,  H03F3/3096

公开(公告)号：US4922208A

公开(公告)日：1990-05-01

申请号：US334430

申请日：1989-04-07

Applicant: David M. Susak ,  Robert L. Vyne

Inventor： David M. Susak ,  Robert L. Vyne

IPC: H03F3/45 ,  H03F1/02 ,  H03F3/30

CPC classification number: H03F1/0261 ,  H03F3/3096

Abstract: In an output stage of an operational amplifier comprising first and second NPN output transistors a circuit is coupled between the positive supply conductor and the collector of the first NPN transistor for providing a boosted base current drive thereto as a function of the load current sourced from the emitter of the first transistor to the output of the operational amplifier. The circuit senses the collector current flowing through the first transistor for increasing the base current drive thereto as the collector current increases.

公开(公告)号：US4553106A

公开(公告)日：1985-11-12

申请号：US593165

申请日：1984-03-26

Applicant: Robert L. Vyne

Inventor： Robert L. Vyne

IPC: H03F1/08 ,  H03F1/30 ,  H03F3/30

CPC classification number: H03F3/3096 ,  H03F1/083 ,  H03F1/302

Abstract: An operational amplifier includes an input stage, an output stage including first, second and third NPN output transistors, and an intermediate stage. The output stage is driven by a thermal current having a positive temperature coefficient so as to keep the gain of the output stage substantially constant over temperature. Thus, the amplifiers Miller loop stability will also remain substantially constant over temperature.

Abstract translation: 运算放大器包括输入级，包括第一，第二和第三NPN输出晶体管的输出级和中间级。 输出级由具有正温度系数的热电流驱动，以便使输出级的增益在温度上保持基本恒定。 因此，放大器米勒回路的稳定性在温度上也保持基本恒定。