The 555 blinking electronic cat circuit

Published:2011/7/18 5:23:00 Author:nelly | Keyword: blinking, electronic cat | From:SeekIC

As shown on the figure 11-25, the astable multivibrator consists of the 555 and R1 and R2 and C. f=1.44/(R1 +2R2)C, the oscillation frequency on the figure is about 1Hz, the duty ratio is 50%. The high power level which outputs drives LED1 and the low power drives the LED2 drives the LED2. The LED1 and LED2 can light in turn. The R3 and R4 are Current-limiting protective resistances.



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