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热词
    • 6. 发明授权
    • Integratable comparator circuit with adjustable response threshold
    • 具有可调节响应阈值的可积分比较器电路
    • US5731721A
    • 1998-03-24
    • US699233
    • 1996-08-19
    • Josef-Matthias GantiolerHolger Heil
    • Josef-Matthias GantiolerHolger Heil
    • H03K17/30H03K5/153
    • H03K17/302
    • A comparator circuit includes a series circuit having a first MOSFET and a second MOSFET. An inverter has a third MOSFET and a fourth MOSFET. A node between the first and second MOSFETs is connected to a gate terminal of the fourth MOSFET. An input voltage is applied between ground and the second MOSFET. A series circuit of a fifth MOSFET and a Zener diode polarized in the blocking direction is connected parallel to the fourth MOSFET. A response threshold of the comparator circuit is defined by adjusting a resistance of the Zener diode occurring in the reverse direction. The resistance is adjusted through the use of a voltage pulse that can be applied to a terminal connected to a cathode of the Zener diode.
    • 比较器电路包括具有第一MOSFET和第二MOSFET的串联电路。 逆变器具有第三MOSFET和第四MOSFET。 第一和第二MOSFET之间的节点连接到第四MOSFET的栅极端子。 在地和第二个MOSFET之间施加一个输入电压。 在阻挡方向上极化的第五个MOSFET和齐纳二极管的串联电路与第四个MOSFET并联连接。 比较器电路的响应阈值通过调节在相反方向上发生的齐纳二极管的电阻来定义。 通过使用可以施加到连接到齐纳二极管的阴极的端子的电压脉冲来调节电阻。