How to use the pwm average voltage calculator
Find the average voltage delivered by a pulse width modulated signal at a duty cycle. Enter supply voltage, duty cycle, pwm frequency in the fields above; the average voltage, pwm period are computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “PWM average voltage”, “duty cycle voltage”, “dimmer average voltage”, “calculate pwm average voltage”, “find average voltage”.
Formula
Variables
- V — Supply voltage (V)
- D — Duty cycle (%)
- f — PWM frequency (Hz)
Worked example
With supply voltage = 12 V, duty cycle = 40 %, pwm frequency = 1000 Hz, the calculator gives average voltage ≈ 4.8 V; pwm period ≈ 1,000 µs.
Frequently asked questions
What is the pwm average voltage calculator used for?
Find the average voltage delivered by a pulse width modulated signal at a duty cycle. It helps with questions such as “PWM average voltage”, “duty cycle voltage”, “dimmer average voltage”.
What is the formula for the pwm average voltage calculation?
Average voltage (V) = V × D / 100. PWM period (µs) = 1e6 / f. Here V is supply voltage (V), D is duty cycle (%), f is pwm frequency (Hz).
What inputs do I need for the pwm average voltage calculator?
You need supply voltage in V, duty cycle in %, pwm frequency in Hz. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use the pwm average voltage calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the pwm average voltage result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.