Duty Cycle Rechner
Berechnen Sie duty cycle percentage aus on-time und period. Find frequency und off-time for PWM signals.
Tastgrad
50.0 %
Duty Cycle vs On Time (Pulse Width)
Formel
## What is Duty Cycle? Duty cycle is the fraction of one period during which a signal is in its active (high) state. ### Formula **Duty Cycle = On Time / Period x 100%** **Off Time = Period - On Time** Duty cycle is fundamental to PWM (Pulse Width Modulation), which controls motor speed, LED brightness, and power delivery by varying the on-time while keeping frequency constant.
Lösungsbeispiel
A 1 kHz signal with 500 microsecond on-time.
- 01Duty cycle: 500 / 1000 x 100 = 50.0%
- 02Off time: 1000 - 500 = 500 microseconds
- 03Frequency: 1,000,000 / 1000 = 1000 Hz
Häufig Gestellte Fragen
What is 50% duty cycle?
A square wave where the signal is high for exactly half the period. This is the most common starting point for PWM.
How does duty cycle relate to average voltage?
The average voltage equals duty cycle times the peak voltage: V_avg = Duty x V_peak.
Can duty cycle be over 100%?
No. Duty cycle ranges from 0% (always off) to 100% (always on). Values outside this range indicate an error in measurement.
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