Pulsduty

Pulsduty is a term sometimes used in electronics to refer to the duty aspect of a pulsed signal. It describes the proportion of time that the signal is in its active or ON state within one cycle, and is effectively another name for the pulse duty cycle. The concept is used across disciplines including power electronics and communications, where a pulsed or modulated waveform carries information or power.

Definition and calculation: If a pulse is ON for a duration ton during a repetitive period T, pulsduty equals ton divided by T. It is a dimensionless quantity and is commonly expressed as a percentage by multiplying by 100.

Relation to PWM and control: In pulse-width modulation schemes, pulsduty controls the average voltage or power delivered to a load. Altering the pulsduty changes the mean value while keeping the switching frequency constant.

Measurement and methods: Pulsduty can be measured with an oscilloscope by measuring the pulse width and period, or by using digital timing hardware in microcontrollers. The accuracy depends on sampling rate, jitter, and measurement window.

Applications and examples: It is used in LED drivers, motor controllers, switching power supplies, and communication systems where efficient regulation of average power or signal level is required.

Notes: The term pulsduty is not standardized and may be used informally; in many contexts "duty cycle" or "pulse width" is preferred to avoid ambiguity.