PWM Spannung Rechner — Formel
## PWM Average Voltage
A PWM signal with fixed amplitude and variable duty cycle produces an average voltage proportional to the duty cycle.
### Formulas
**V_avg = V_peak x Duty Cycle**
**V_rms = V_peak x sqrt(Duty Cycle)**
When filtered through a low-pass filter, the PWM signal approximates a DC voltage equal to V_avg. This principle drives motor controllers, dimmers, and digital-to-analog conversion.
A PWM signal with fixed amplitude and variable duty cycle produces an average voltage proportional to the duty cycle.
### Formulas
**V_avg = V_peak x Duty Cycle**
**V_rms = V_peak x sqrt(Duty Cycle)**
When filtered through a low-pass filter, the PWM signal approximates a DC voltage equal to V_avg. This principle drives motor controllers, dimmers, and digital-to-analog conversion.
Lösungsbeispiel
3.3 V logic level at 75% duty cycle.
- Average voltage: 3.3 x 0.75 = 2.475 V
- RMS voltage: 3.3 x sqrt(0.75) = 3.3 x 0.866 = 2.858 V
- Power is 75% of continuous DC