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    • 8. 发明公开
    • HIGH VOLTAGE TOLERANT CMOS DRIVER FOR LOW-VOLTAGE BI-DIRECTIONAL COMMUNICATION BUSES
    • 用于低压双向通信总线的高压容差CMOS驱动器
    • EP3311489A1
    • 2018-04-25
    • EP15730764.6
    • 2015-06-18
    • EUROPEAN SPACE AGENCY
    • JANSEN, RichardLINDNER, Scott
    • H03K19/003
    • H03K19/00338G06F13/4022H03K19/00315H03K19/018507
    • This application relates to a bi-state driver circuit for switching an output terminal between a first predetermined voltage level and a high impedance state. The bi-state driver circuit comprises a first string of transistors connected between the output terminal and the first predetermined voltage level and comprising at least a first transistor arranged closer to the first predetermined voltage level and a second transistor arranged closer to the output terminal, a voltage divider circuit connected between the output terminal and a voltage level of a control signal attaining voltage levels between the first predetermined voltage level and a second predetermined voltage level, comprising at least one intermediate node having an intermediate voltage level between a voltage level of the output terminal and the voltage level of the control signal, and a second string of transistors connected between the intermediate node of the voltage divider circuit and the second predetermined voltage level, and comprising at least a third transistor. A control terminal of the second transistor is connected to the intermediate node. The first transistor is configured to be switched in accordance with the control signal. The third transistor is configured to be switched in accordance with the control signal, in a phase-locked relationship with the first transistor. The application further relates to a driver circuit for switching a first output terminal between a first output voltage level and a high impedance state, and for switching a second output terminal between a second output voltage level and the high impedance state. The application yet further relates to a method of controlling a bi-state driver circuit.