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31 条记录 (耗时 0.022 秒)

    RAMP SIGNAL GENERATION CIRCUIT AND RAMP SIGNAL ADJUSTMENT CIRCUIT
    1.
    发明申请
    RAMP SIGNAL GENERATION CIRCUIT AND RAMP SIGNAL ADJUSTMENT CIRCUIT 审中-公开
    RAMP信号发生电路和RAMP信号调整电路

    公开(公告)号：US20130099834A1

    公开(公告)日：2013-04-25

    申请号：US13654513

    申请日：2012-10-18

    申请人： TDK Corporation

    发明人： Kazunori OSHIMA ,  Hironobu MASUOKA ,  Mitsuyuki TSUJISAKA ,  Yukiharu MIYAOKA

    IPC分类号： H03K4/06

    CPC分类号： H03K4/58 ,  H02M3/156

    摘要： A ramp signal generation circuit comprises a first input terminal that receives a clock signal, a plurality of second input terminals that receive high-level or low-level signals, and a discharge and charge circuit that discharges and charges the capacitor and that outputs a ramp signal corresponding to a voltage generated by the capacitor. The discharge and charge circuit comprises a discharge circuit that discharges the capacitor, and a charge circuit that is configured with a plurality of paired resistors and rectifying elements connected between the capacitor and the plurality of second input terminals. The discharge and charge circuit selects at least one of the plurality of second input terminals so as to change a current value for charging the capacitor by inputting the high-level signal to the selected one of the plurality of second input terminals.

    摘要翻译： 斜坡信号产生电路包括接收时钟信号的第一输入端子，接收高电平或低电平信号的多个第二输入端子，以及放电和充电电路，其对电容器进行放电和充电，并输出斜坡 信号对应于由电容器产生的电压。 放电和充电电路包括放电电容器，以及充电电路，其配置有连接在电容器和多个第二输入端子之间的多个成对电阻器和整流元件。 放电和充电电路选择多个第二输入端子中的至少一个，以便通过将高电平信号输入到多个第二输入端子中的所选择的一个来改变用于对电容器充电的电流值。

    Linear sweep circuit
    2.
    发明授权
    Linear sweep circuit 失效
    线性扫描电路

    公开(公告)号：US3659115A

    公开(公告)日：1972-04-25

    申请号：US3659115D

    申请日：1970-03-09

    申请人： BOEING CO

    发明人： MONTGOMERY GARY D

    IPC分类号： H03K4/50 ,  H03K4/501 ,  H03K4/58

    CPC分类号： H03K4/50 ,  H03K4/501 ,  H03K4/58

    摘要： A logic controlled sweep circuit effecting high linearity over a wide range of sweep frequencies. A timing capacitor charging circuit is coupled to the gate electrode of a field effect transistor, and a Schmitt trigger logic circuit responsive to the sweep output signal at the source of the field effect transistor provides a reset pulse to a J-K flip-flop circuit to discharge the timing capacitor and control the sweep output signal.

    摘要翻译： 一个逻辑控制的扫描电路在宽的扫频范围内实现高线性度。 定时电容器充电电路耦合到场效应晶体管的栅极，并且响应于场效应晶体管源极处的扫描输出信号的施密特触发逻辑电路为JK触发器电路提供复位脉冲以放电 定时电容并控制扫描输出信号。

    Frequency-divided sawtooth wave generating circuit
    3.
    发明授权
    Frequency-divided sawtooth wave generating circuit 失效
    频分复用波形发生电路

    公开(公告)号：US3603809A

    公开(公告)日：1971-09-07

    申请号：US3603809D

    申请日：1970-01-02

    申请人： NIPPON MUSICAL INSTRUMENTS MFG

    发明人： UCHIYAMA YASUJI

    IPC分类号： G10H5/07 ,  H03B19/14 ,  H03K4/08 ,  H03K4/58 ,  H03K6/00 ,  H03K23/00

    CPC分类号： G10H5/07 ,  H03B19/14 ,  H03K4/08 ,  H03K4/58 ,  H03K6/00 ,  H03K23/00

    摘要： A circuit consisting of a square wave frequency divider which converts its input sawtooth wave having a frequency f into an output square wave having a frequency f/2 and a mixer for mixing said output wave and said input sawtooth wave by equal peak amplitudes, said circuit being a principal circuit of the invention and being used to produce a sawtooth wave having a frequency f/2. A plurality of stages each consisting of the circuit mentioned above are successively connected in cascade, whereby a plurality of sawtooth waves having frequencies which are successively divided are produced. Furthermore, modifications of the circuits mentioned above are described.

    Constant amplitude sawtooth generator
    4.
    发明授权
    Constant amplitude sawtooth generator 失效
    恒定振幅发电机

    公开(公告)号：US3569735A

    公开(公告)日：1971-03-09

    申请号：US3569735D

    申请日：1968-09-24

    申请人： US ARMY

    发明人： LAVENDER WENDELL E

    IPC分类号： H03K4/58 ,  H03K4/50

    CPC分类号： H03K4/58

    摘要： This invention relates to a constant amplitude sawtooth generator. The circuit of the generator comprises a charging capacitor that is discharged through a transistor when an input pulse is applied to the base of the transistor. The sawtooth is linearized by the use of a bootstrap circuit comprising two transistors. A fourth transistor in conjunction with a zener diode is used to sample and control the peak output of the generator. If the output of the generator exceeds the breakdown voltage of the zener diode, the fourth transistor will conduct and lower the charging voltage of the charging capacitor.

    Constant current source
    6.
    发明授权
    Constant current source 失效
    恒流源

    公开(公告)号：US3899692A

    公开(公告)日：1975-08-12

    申请号：US42362073

    申请日：1973-12-10

    申请人： ROCKWELL INTERNATIONAL CORP

    发明人： CASWELL ROBERT L

    IPC分类号： H03K4/58 ,  H03K4/12 ,  H03K4/24

    CPC分类号： H03K4/58

    摘要： A current source for supplying constant, low level currents includes a high input impedance voltage follower, a voltage source connected to the voltage follower output terminal and, through an impedance, to the voltage follower input terminal.

    摘要翻译： 用于提供恒定低电平电流的电流源包括高输入阻抗电压跟随器，连接到电压跟随器输出端的电压源，以及通过阻抗连接到电压跟随器输入端。