Frequency
Also: cycle rate, f
The number of repeating cycles per unit time.
Frequency is reciprocal period; usable PWM frequency also depends on timer clock, count range, and required duty resolution.
- Units
- hertz (Hz = s⁻¹)
- Formula
f = 1/T
Example A 1 kHz PWM repeats every 1 ms.
Common misconception Higher frequency does not automatically give finer duty resolution.