Before revision: The duty cycle is defined as the ratio between the pulse duration, or pulse width () and the period () of a rectangular waveform Spectrum in relation to duty cycle A duty cycle is the fraction of one period in which a signal or system is active.
After revision: or power cycleThe duty cycle is defined as the ratio between the pulse duration, or pulse width () and the period () of a rectangular waveform Spectrum in relation to duty cycle A duty cycle is the fraction of one period in which a signal or system is active.