Six-way loop lantern control circuit composed of HFC3040

Published:2011/11/9 20:38:00 Author:May | Keyword: Six-way loop , lantern control | From:SeekIC

Six-way loop lantern control circuit composed of HFC3040 module can drive six-way lantern loop to flash, andit hastwo different loop speeds, and it is shown in the diagram. Because the circuit skillfully uses flashing integrated module HFC3040 to make circuit structure simple and cost low. IC1 is theflashing special integrate circuit HFC3040, and its working voltage range is 1.5~5V. So 220V ACvoltage is buck limited by R1, half-wave rectified byV1 to makeLED emit light. At the same time, the two ends ofLED 's about 1.6V steady DC voltageis filtered by C1 toofferpowerfor integrate circuit. Because TR's trigger ends connectto ground,it immediately is triggered to work after getting power. Six output ends L1~L6 is in low level orderly, so six PNP triodes VT1~VT6 are breakover orderly, unidirectional thyristors VS1~VS6and lanterns H1~H6 arelit one by one.



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