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    • 4. 发明授权
    • Low-side driver high-voltage transient protection circuit
    • 低边驱动器高压瞬态保护电路
    • US08339181B2
    • 2012-12-25
    • US12613363
    • 2009-11-05
    • Alex WedinDale TrumboPaul Stevens
    • Alex WedinDale TrumboPaul Stevens
    • H03K17/00
    • H03K17/0822
    • A low-side driver circuit includes a low-side driver integrated circuit and a controllable switch. The low-side driver integrated circuit is responsive to an on-off command input signal to selectively operate in an ON mode and an OFF mode. The controllable switch is responsive to the on-off command signal to selectively operate in a CLOSED mode and an OPEN mode. The low-side driver integrated circuit and the controllable switch are configured to simultaneously operate in the ON mode and the CLOSED mode, respectively, and in the OFF mode and the OPEN mode, respectively. During a voltage transient the potential will be realized across the controllable switch, thus protecting the lower voltage rated low-side integrated circuit.
    • 低侧驱动电路包括低侧驱动器集成电路和可控开关。 低侧驱动器集成电路响应于开 - 关命令输入信号,以选择性地在ON模式和OFF模式下操作。 可控开关响应于开 - 关命令信号,以选择性地以闭合模式和打开模式操作。 低侧驱动器集成电路和可控开关分别被配置为分别在ON模式和CLOSED模式下分别处于OFF模式和OPEN模式。 在电压瞬变期间,电位将跨可控开关实现,从而保护低电压额定值的低侧集成电路。
    • 7. 发明授权
    • Appartus and method for protecting signal and communication lines from very high voltage and transient pulses
    • Appartus和用于保护信号和通信线路免受非常高的电压和瞬态脉冲的影响
    • US08570697B2
    • 2013-10-29
    • US13230716
    • 2011-09-12
    • Paul StevensAlex WedinDale Trumbo
    • Paul StevensAlex WedinDale Trumbo
    • H02H3/20H02H3/00
    • H02H3/20
    • Apparatus for protecting a signal line bus driver from overvoltage faults may include a first solid-state switch configured to block current having a positive voltage when open and a second solid-state switch configured to block current having a negative voltage when open. A comparator circuit may produce a output signal responsively to presence of a fault-induced voltage in the signal line that has a magnitude that exceeds the reference voltage. The first and second switches may be connected in series with one another and with the bus driver. The switches may be interposed between the bus driver and an output end of the signal line and may responsively to the comparator circuit output signal.
    • 用于保护信号线总线驱动器免受过压故障的装置可以包括第一固态开关,其被配置为阻止当开路时具有正电压的电流,以及第二固态开关,其被配置为在打开时阻断具有负电压的电流。 比较器电路可以响应于信号线中的故障感应电压的存在而产生输出信号,该电压具有超过参考电压的幅度。 第一和第二开关可以彼此串联并与总线驱动器串联连接。 开关可以插在总线驱动器和信号线的输出端之间,并且可以响应于比较器电路输出信号。