Bidirectional level shifter
    1.
    发明授权
    Bidirectional level shifter 有权
    双向电平转换器

    公开(公告)号:US08917112B1

    公开(公告)日:2014-12-23

    申请号:US14014079

    申请日:2013-08-29

    摘要: The invention provides a bidirectional level shifter which includes: a first signal terminal; a second signal terminal; a first switch, coupled between the first signal terminal and ground; an inverter receiving a signal from the first signal terminal; a Schottky diode including an anode and a cathode, the anode receiving a signal from the second signal terminal; a second switch, coupled between the cathode of the Schottky diode and the ground; a comparing circuit, comparing a reference voltage and a voltage at the second signal terminal to control the first switch, wherein the reference voltage is lower than a forward bias voltage of the Schottky diode; a first voltage source coupled to the first common node; and a second voltage source coupled to the second common node.

    摘要翻译: 本发明提供一种双向电平移位器,包括:第一信号端; 第二信号端; 耦合在第一信号端和地之间的第一开关; 逆变器,接收来自第一信号端子的信号; 包括阳极和阴极的肖特基二极管,所述阳极接收来自所述第二信号端子的信号; 耦合在肖特基二极管的阴极和地之间的第二开关; 比较电路,比较第二信号端子处的参考电压和电压以控制第一开关,其中参考电压低于肖特基二极管的正向偏置电压; 耦合到所述第一公共节点的第一电压源; 以及耦合到所述第二公共节点的第二电压源。

    Auto-zero amplifier and sensor module using same
    2.
    发明授权
    Auto-zero amplifier and sensor module using same 失效
    自动归零放大器和传感器模块使用相同

    公开(公告)号:US08773198B2

    公开(公告)日:2014-07-08

    申请号:US13571903

    申请日:2012-08-10

    IPC分类号: H03F3/45

    摘要: An auto-zero amplifier is disclosed, having an amplifying circuit, a switch, and a difference signal generating circuit. The amplifying circuit receives a first input signal for generating a first output signal, and receives a second input signal for generating a second output signal. The switch is coupled between the amplifying circuit and a capacitor. The switch is conducted for charging or discharging the capacitor to a voltage with the first output signal, and the switch is not conducted for keeping the capacitor at the voltage. The difference signal generating circuit is coupled with the amplifying circuit and the capacitor for generating a difference signal of the first output signal and the second output signal, a multiple of the difference signal, a part of the difference signal, and/or a digital output value for the difference signal.

    摘要翻译: 公开了一种具有放大电路,开关和差信号发生电路的自动调零放大器。 放大电路接收用于产生第一输出信号的第一输入信号,并接收用于产生第二输出信号的第二输入信号。 开关耦合在放大电路和电容器之间。 开关用于将电容器充电或放电至具有第一输出信号的电压,并且开关不导通以将电容器保持在电压。 差分信号发生电路与放大电路和电容器耦合,用于产生第一输出信号和第二输出信号的差分信号,差信号的一倍,差分信号的一部分和/或数字输出 差信号的值。

    AUTO-ZERO AMPLIFIER AND SENSOR MODULE USING SAME
    3.
    发明申请
    AUTO-ZERO AMPLIFIER AND SENSOR MODULE USING SAME 失效
    自动零放大器和传感器模块使用相同

    公开(公告)号:US20130038388A1

    公开(公告)日:2013-02-14

    申请号:US13571903

    申请日:2012-08-10

    IPC分类号: H03F3/45

    摘要: An auto-zero amplifier is disclosed, having an amplifying circuit, a switch, and a difference signal generating circuit. The amplifying circuit receives a first input signal for generating a first output signal, and receives a second input signal for generating a second output signal. The switch is coupled between the amplifying circuit and a capacitor. The switch is conducted for charging or discharging the capacitor to a voltage with the first output signal, and the switch is not conducted for keeping the capacitor at the voltage. The difference signal generating circuit is coupled with the amplifying circuit and the capacitor for generating a difference signal of the first output signal and the second output signal, a multiple of the difference signal, a part of the difference signal, and/or a digital output value for the difference signal.

    摘要翻译: 公开了一种具有放大电路,开关和差信号发生电路的自动调零放大器。 放大电路接收用于产生第一输出信号的第一输入信号,并接收用于产生第二输出信号的第二输入信号。 开关耦合在放大电路和电容器之间。 开关用于将电容器充电或放电至具有第一输出信号的电压,并且开关不导通以将电容器保持在电压。 差分信号发生电路与放大电路和电容器耦合,用于产生第一输出信号和第二输出信号的差分信号,差信号的一倍,差分信号的一部分和/或数字输出 差信号的值。