Circuit Diagram for 555 Timer PWM Generation Components Required: 555 Timer IC, 1K Resistor, 10K Potentiometer, 2 - 0.01uF Capacitor,
                                                                 2 - 1N4148 Fast Switching Diode, 470 Resistor, LED, Breadboard, 9V-12V Power Supply, Jumper Wires. NOTE: 1N914, 1N5817 can be substituted!



555 - Pulse Width Modulator





555 - Pulse Width Modulator Timing, (Duty Cycle)