A certain pulse measures 10 ms and has a period of 50 ms. The duty cycle is

Concept:

The duty cycle for an alternating quantity describes the fraction of time that the pulse is ON in one pulse period.

Mathematically, this is defined as:

Duty Cycle = \(\frac{T_{on}}{T_{on}+T_{off}}\)

Ton = Time for which the output is ON

Toff = Time for which the output is OFF

Also, the Time period is the sum of the ON time and OFF time, i.e.

T = Ton + Toff

\(Duty~Cycle=\frac{T_{on}}{{T}}\)

Calculation:

With Ton = 10 ms, and T = 50 ms, the duty cycle will be:

\(Duty~Cycle=\frac{10}{{50}}=\frac{1}{5}\)

% Duty cycle will be:

\(\%D=\frac{1}{5}\times 100\)

%D = 20%

Periodic waveform with different duty cycles is as shown below: