NE555_PWM_Driver

NE555 precision timer based IRFZ44N LED/motor driver design.

No feedback loop
Just open loop control
No filter
Bare PWM output

PCB Design (DIP)

Schematic

Front

Back

PCB Design (SMD)

Schematic

Front

Back

PCB Images (SMD)

With Lamp

Front

Back

Oscilloscope Waveforms

General

Whole Swing

Ripple

Noise

Conclusion

The theoratical frequency is consistent with experimental frequency
There is small discrepancies between the theoratical ripple and experimental ripple

Simulation on LTSpice

Circuit

Waveforms

Prototype on Breadboard

Watch the video

References

https://circuitdigest.com/electronic-circuits/555-timer-pwm-generator-circuit