This is the design for simple micro flasher circuit. This circuit is continuously emits flashing light with the consumption of very less power. The circuit is work with based on CD4093, for the operation. The circuit can run for a very long time for four 1.5 V torch cells. This is the figure of the circuit.
For operation of the circuit, a low power CMOS IC CD4093 (IC1) is used to produce sharp pulses of 20 ms from a red LED. The LED appears to be glowing continuously due to persistence of vision, and lot of power is saved. The IC1 is quad NAND gate whose one gate is used for producing oscillations. The unused inputs are kept to logic 1 by connecting it to the positive. The value of R1 determines the charging current of C1. All capacitors must be rated 10V. For power supply of the circuit, a 6V DC adapter can be also used to power the circuit or using 6V battery.
For operation of the circuit, a low power CMOS IC CD4093 (IC1) is used to produce sharp pulses of 20 ms from a red LED. The LED appears to be glowing continuously due to persistence of vision, and lot of power is saved. The IC1 is quad NAND gate whose one gate is used for producing oscillations. The unused inputs are kept to logic 1 by connecting it to the positive. The value of R1 determines the charging current of C1. All capacitors must be rated 10V. For power supply of the circuit, a 6V DC adapter can be also used to power the circuit or using 6V battery.
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