Circuit diagrams and schematics - Electronic projects

This circuit uses the nand gate IC number is 4011B per Clock signal generator circuit, feeding it with the pin number 14 of the IC counter circuit 4017B.When you press and hold the switch S1 C1 will discharge. Causing current flow through D1 as a result, IC1 work.Clock generator and input to IC2. IC2, which [...]

This isn’t a very useful or interesting circuit but it demonstrates the prinicple of a Binary to Decimal decoder IC such as the IC 4511. Read More Source: http://www.geocities.com/electronics3456/4511.html Thank you. Related Links More Circuit about digital counter More 7 segment LED counter circuit More decade counter circuit 4-digit Up-Down counter with PIC 16F88 PIC16F84A [...]

The circuit uses a 555 timer oscillator to supply clock pulses of a variable frequency to the 4017 decade counter. The decade counter only needs to have three outputs so the fourth output goes into the reset pin to start the cycle all over again. The central red led is always on. Each row of [...]