PWM Duty Cycle Generator
Pulse Width Modulation (PWM) is widely used in motor control, LED dimming, microcontroller outputs, robotics, and power electronics.
This PWM Duty Cycle Generator helps you calculate accurate PWM values based on frequency and timing inputs, giving instant results for design and troubleshooting.
Pulse Width Modulation Calculator
Enter ON time and OFF time in milliseconds.
If you know the frequency, enter it (optional).
Click Calculate Duty Cycle.
The tool displays:
Duty Cycle (%)
Frequency (Hz)
Signal Period (ms)
🧭 How to Use
FAQ
Q1. What is PWM duty cycle?
A. It is the percentage of time the signal stays HIGH during one complete cycle.
Q2. Why is PWM used?
A. For speed control, dimming, heating control, and digital-to-analog power delivery.
Q3. What units should I enter?
A. ON and OFF times in milliseconds; frequency is optional.
Q4. Can I use this for Arduino or ESP32 PWM design?
A. Yes — it works for all microcontrollers, PLC modules, and power electronics circuits