公开(公告)号：US3921010A

公开(公告)日：1975-11-18

申请号：US38972673

申请日：1973-08-20

Applicant: RCA CORP

Inventor： GRIFFIN ROGER THOMAS

IPC: H03D1/06 ,  G01R19/04 ,  G01R19/165 ,  G04C3/10 ,  G04C3/14 ,  G04C13/11 ,  G04G99/00 ,  H03K5/1532 ,  H03K5/153 ,  H03K19/38 ,  H03K19/40

CPC classification number: G04G99/00 ,  G01R19/04 ,  G01R19/16519 ,  G04C3/143 ,  G04C13/11 ,  H03K5/1532

Abstract: A feedback circuit between the output and input terminals of a complementary-symmetry, metal-oxide-semiconductor (CMOS) circuit, such as an inverter circuit, quiescently biases the circuit at a point on its transfer characteristic such that a slight additional change in voltage level will cause the circuit to change state. Input signal is applied to the input terminal through a coupling element such as a capacitor. When this input signal starts to decrease after reaching its peak voltage value in a given sense, it causes the feedback circuit to open and the CMOS circuit to change to its second state. In response to each following peak of the same sense, the feedback loop momentarily closes then opens and concurrently the circuit momentarily reverts to its initial state then switches to its second state.

Abstract translation: 在互补对称的金属氧化物半导体（CMOS）电路（例如逆变器电路）的输出端和输入端之间的反馈电路在其传输特性的某一点静态地偏置电路，使得电压稍微的附加变化 电平将导致电路改变状态。 输入信号通过诸如电容器的耦合元件施加到输入端。 当该输入信号在给定意义上达到其峰值电压值之后开始降低时，使得反馈电路打开，并且CMOS电路变为其第二状态。 响应于相同感测的每个后续峰值，反馈环路瞬间闭合然后打开，同时电路暂时恢复到其初始状态，然后切换到其第二状态。

公开(公告)号：US3904888A

公开(公告)日：1975-09-09

申请号：US48623274

申请日：1974-07-05

Applicant: RCA CORP

Inventor： GRIFFIN ROGER THOMAS ,  HILLMAN DANIEL LEE

IPC: H03K5/02 ,  H03K5/12 ,  H03K19/0948 ,  H03K19/08 ,  H03K19/36 ,  H03K19/40

CPC classification number: H03K5/023 ,  H03K5/12 ,  H03K19/0948

Abstract: The circuits include a complementary inverter, comprised of first and second transistors responsive to an input signal, and means responsive to the input signal, for placing the conduction paths of additional transistors in parallel with the conduction path of the first or the second transistor. The conductivity of the additional transistors is controlled by a feedback signal derived from the output of the inverter. When an inverter transistor is turned on the additional transistors connected across it are also turned on causing the equivalent impedance of the ''''ON'''' portion of the circuit to be much lower than the ''''ON'''' impedance of either one of the inverter transistors.

Abstract translation: 电路包括互补反相器，其包括响应于输入信号的第一和第二晶体管以及响应于输入信号的装置，用于将附加晶体管的导通路径与第一或第二晶体管的导通路径平行。 通过从逆变器的输出得到的反馈信号来控制附加晶体管的导电性。 当逆变器晶体管导通时，连接在其上的附加晶体管也被导通，导致电路的“ON”部分的等效阻抗远低于任一个反相器晶体管的“ON”阻抗。