Four path lights with bird control circuit using BH9201

Published:2011/7/5 22:46:00 Author:zj | Keyword: Four path lights, bird twitter control circuit | From:SeekIC

The circuit is shown above. It is composed of a lamp control circuit of SCR trigger control circuit, a sounding circuit, audio power amplifier circuit of birdsong and AC voltage reducing rectifier circuit. It can in the four path lights string strobe at the same time, a beautiful melodious birds toot cries. BH9201 is a special lantern control integrated circuit, it has four control signal output regulator connected in an external pins 2, 3 of RP1, can make the four path lights show jumping, running water, the light, the three state. R0, RP1, C1 inside the BH9201 oscillation circuit of an external resistor and capacitor.



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