Driver circuit for time unit

TLDR: In this article, a driver circuit for time unit with electronic circuits such as photo coupler and transistors was proposed. But the driver circuit was not used to increase the reliability in comparison with the relay circuit consisting of relay circuits.

Abstract: PURPOSE:To increase the reliability in comparison with the driver circuit consisting of relay circuits, by constituting the driver circuit for time unit with electronic circuits such as photo coupler and transistors. CONSTITUTION:The signal A of the master clock 1 is converted into the signals C,B signals to turn off the transistors 17,18 alternately with the conversion circuit 2. When the transistor 18 is ON, the remote control terminal RC of the second switching regulator 12 is closed to the potential of the - terminal with the photo coupler 16 to turn off the switching regulator 12. When the transistor 18 is turned off, the output a of the switching regulator 12 produces a positive voltage. Similarly, negative voltage is produced from the first switching regulator 11 to drive the slave clocks with the polarity pulse.