Photoelectric isolation type quick switch circuit diagram

Published:2014/1/9 19:46:00 Author: | Keyword: Photoelectric isolation type quick switch circuit diagram, | From:SeekIC

This circuit can use almost any standard of optoelectronic isolator. As long as the photoelectric diode D; Pick up to less than 20 mu A in the current, can make LM195 power transistor conduction, D2 of the cathode is power directly, and not be collector of Q1, to eliminate the influence of base - the collector capacitance. In 40 v, 1 A load case, the switch speed increased to 500 ns.



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