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    • 6. 发明授权
    • Circuit configuration for supplying power to electronic tripping device
    • 用于向电子跳闸装置供电的电路配置
    • US6150739A
    • 2000-11-21
    • US147998
    • 1999-03-24
    • Ulrich BaumgartlWolfgang Rohl
    • Ulrich BaumgartlWolfgang Rohl
    • H02H1/06H02M3/155H01H47/00
    • H02M3/155H02H1/066
    • A circuit configuration for supplying power to electronic tripping devices from a current-transforming device. A switched-mode power supply unit, in particular a choke/step-up transforming device having a pulse-width voltage control, is connected downstream of a charging capacitor. Once a set point of the output voltage at an output capacitor is reached, only a very high pulse duty factor is provided. Particularly, maximum power point control is provided during an initial charging phase. Circuit configurations of this kind serve the power supply of overvoltage tripping devices in low-voltage and medium-voltage systems.
    • PCT No.PCT / DE97 / 02215 Sec。 371 1999年3月24日第 102(e)1999年3月24日PCT 1997年9月24日PCT公布。 第WO98 / 13918号公报 日期1998年4月2日用于从电流转换装置向电子跳闸装置供电的电路配置。 开关模式电源单元,特别是具有脉冲宽度电压控制的扼流/升压转换装置连接在充电电容器的下游。 一旦达到输出电容器的输出电压的设定点,只提供非常高的脉冲占空因数。 特别地,在初始充电阶段期间提供最大功率点控制。 这种电路配置用于低压和中压系统中过电压跳闸装置的电源。
    • 7. 发明授权
    • Intrinsically safe power supply with a current regulator
    • 本质安全电源带有电流调节器
    • US4646219A
    • 1987-02-24
    • US794962
    • 1985-11-04
    • Wolfgang Rohl
    • Wolfgang Rohl
    • H02M3/335
    • H02M3/33523
    • An intrinsically safe power supply arrangement with a current regulator is provided with a controlled semiconductor, coupled to a clock generator and coupled between a rectifier and a primary winding of a transformer, for periodically interrupting a DC current in response to a clock signal. A short-circuit switch is disposed between a secondary winding of the transformer and an output of the power supply arrangement. A choke is coupled to the short-circuit switch, and a voltage limiter is coupled to the choke. A current regulator, coupled between the voltage limiter and the output of the power supply arrangement, has a retrogressive current-voltage characteristic and a delay stage for producing a time-delayed rise of a selectable combination of current and voltage. A circuit element supplies a selectable input and output signal of the current regulator to an input of a voltage regulator. An output of the voltage regulator is coupled to the clock generator. A current measuring circuit coupled to the primary winding of the transformer and the clock generator limits the current supplied to the primary winding of the transformer in the event of a short-circuit on the secondary side of the transformer.
    • 具有电流调节器的本质安全的电源装置设置有被耦合到时钟发生器并耦合在变压器的整流器和初级绕组之间的受控半导体,用于响应于时钟信号周期性地中断DC电流。 短路开关设置在变压器的次级绕组和电源装置的输出端之间。 扼流器耦合到短路开关,并且电压限制器耦合到扼流圈。 耦合在电压限制器和电源装置的输出之间的电流调节器具有逆向电流 - 电压特性和用于产生可选择的电流和电压组合的时间延迟上升的延迟级。 电路元件将电流调节器的可选输入和输出信号提供给电压调节器的输入端。 电压调节器的输出耦合到时钟发生器。 耦合到变压器的初级绕组的电流测量电路和时钟发生器在变压器的次级侧发生短路的情况下限制提供给变压器的初级绕组的电流。