This is the Shift Register Driver Power Supply Circuit Diagram. A16 V power supply can be synthesized as shown using IN1692 rectifiers. A shift pulse input saturates the 2N2714 depriving the Darling-ton combination (2N2714 and 2N2868) of base drive.The negative pulse so generated on the 15 V line is differentiated to produce a positive trigger pulse at its trailing edge.
Shift Register Driver Power Supply Circuit Diagram
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