The annular scintillator schematic

Published:2012/9/17 1:08:00 Author:Ecco | Keyword: annular scintillator | From:SeekIC

The circuit is mainly composed of NE555, CD4017 and peripheral circuits. The NE555 forms multivibrator, and its pin 3 outputs square wave to control CD4017 output shift end and individually light LED so that the LED ring flashes. As shown in the figure, the line flicker frequency is about 1.5Hz, operating current is less than 50mA. Components Selection: IC1 chooses the 555 tine-base circuit, IC2 selects CD4017 integrated circuit. R1 uses (1/2) W metal film resistor, the remaining resistors selects (1/4) W resistors, LED0 ~ LED9 can choose Φ5mm ultra bright or special highlight red light-emitting tube. Other components are shown as the figure.



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