Divide-By-2-Or-3 Circuit

Posted on Apr 19, 2012

This circuit produces a symmetrical waveform when dividing by either 2 or 3. The Divide Select input controls the

Divide-By-2-Or-3 Circuit
Click here to download the full size of the above Circuit.

division factor. When Divide Select is high, flip-flops IC1 and IC2, along with associated gates, form the classical divide-by-3 circuit. When divide select is low, however, the output of the AND gate, IC5, goes low. Consequently, the NOR gate, IC4, inverts the feedback signal and passes it to the D input of the flip-flop, IC1. Now, IC1 acts like a toggle flip-flop and produces a divide-by-2 output. IC3, which is, in effect, a negative-edge-triggered flip-flop, provides symmetrical output signals. When you select division by 2 (Divide Select is low), the output and AND gate IC6 is low, and IC3 simply clocks out the divider"s output, delayed by one clock period. When you set Divide Select high, the path to the output through the AND and OR gates, IC6 and IC7, is enabled. This path means that the output goes high on the leading edge of IC3"s input (not its output) and produces a symmetrical divide-by-3 output.

Leave Comment

characters left:

New Circuits



Popular Circuits

20W Class-A Amplifier
Temperature Control switch
Switching regulator operating at 200Khz
One-Way Voice-Activated Intercom Circuit
Battery Indicator based on PIC18f452
Bass-treble Tone Control Circuit With LM1035N IC
Converting current to voltage transducer circuit Using LM107
DIY mobile phone jammer Schematic Diagram
Micro-Ohm Meter Senior Project Page
20w rf fm amplifier circuit
250 to 5000 watts PWM DC/AC 220V Power Inverter
Discrete Voltage Inverter
Double astable multivibrator circuit diagram
555 meter circuit diagram of a DC voltage