Multiplex Switchig Method Driving Display Circuit

Published:2011/5/17 5:52:00 Author:Robert | Keyword: Multiplex Switching Method, Driving, Display | From:SeekIC

This circuit uses the battery to supply power. It takes a decode driver to drive the MAN-4 displayer'sseveral nixietubes one by one through the multiplex method, which can reduce the battery's power consumption. Because the readings saw by the human eye in the whole show cycle is still preserved impressions, it looks like the displayer being with a continuous display. The peak current of the displayer is 20mA, but every nixietube's electrified time is just 12.5% of the whole display cycle time. The four MC1402 8-bit shift registers lock and store the value caculated by the MC14515 counter and complete the multiplex switching function.



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