DEVICE FOR TRANSMISSION OF CONTROL SIGNALS WITH GALVANIC ISOLATION Russian patent published in 1997 - IPC

FIELD: pulse equipment. SUBSTANCE: device has transformer, two gates, communication line and amplifier, which outputs are connected to inputs of communication line which is designed as twisted pair, which second terminal is connected to middle tap of primary winding of transformer. Start terminal of primary winding is connected to output of first gate. End terminal of primary winding is connected to output of second gate. Inputs of first and second gates are joined. Input of amplifier serves as device input. In addition device has decoder, interface unit, two resistors, two diodes and level converter, which inverting input is connected to first input of decoder, which second and third inputs serve as additional second and third inputs of device. First and second outputs of decoder are connected to control inputs of second and first gates respectively. First and second terminals of communication line are connected to first and second terminals of interface unit, which third terminal is connected to joined inputs of gates. First terminals of first and second resistors are joined and connected to device output and end terminal of secondary winding of transformer. Start terminal of secondary winding is connected to anode of first diode and cathode of second diode. Anode of second diode is connected to second terminal of first resistor. Cathode of first diode is connected to second terminal of second resistor and to input of level converter, which inverting output serves as device output. EFFECT: increased functional capabilities, simplified design. 1 dwg