duty cycle

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duty cycle

[′düd·ē ‚sī·kəl]
(communications)
The product of the pulse duration and pulse repetition frequency of a pulse carrier, equal to the time per second that pulse power is applied. Also known as duty factor.
(electronics)
(engineering)
The time intervals devoted to starting, running, stopping, and idling when a device is used for intermittent duty.
The ratio of working time to total time for an intermittently operating device, usually expressed as a percent. Also known as duty factor.
(metallurgy)
The percentage of time that current flows in equipment over a specific period during electric resistance welding.
(nucleonics)
The fraction of time during which a pulsed accelerator beam is on target, usually expressed as a percent. Also known as duty factor.

duty cycle

(1) A machine's rated capacity to continuously perform work under normal conditions. It generally applies to mechanical devices such as printers, in which case it would indicate the number of pages that can be printed per month without a problem.

(2) The ratio of a device operating versus cooling down. An 80% duty cycle means that it is capable of running 80% of a specified time period and turned off for the remainder.
References in periodicals archive ?
As new members of the SC65x tiny charge pump platform, these devices are the industry's first LED drivers to integrate digital low-pass filters that convert a PWM dimming signal's duty-cycle into DC current for LCD backlighting with white LEDs.
LED current is linearly proportional to duty-cycle from 1% to 100%, while 0% duty-cycle places the IC into 0.
Non-PLL based clock buffers do not control the pulse skew that creates duty-cycle distortion.
When an overcurrent situation is detected, the controller goes into low duty-cycle hiccup mode to limit current.
This threshold protects the device and the external MOSFET switch from overheating by switching to low duty-cycle operation when internal rise- time currents are abnormally high.
An on-chip duty-cycle circuit provides overcurrent protection for the device if the lamp current exceeds an internally programmed limit (typically 500 mA).
The HP LaserJet 6L printer family offers a speed and duty-cycle increase of 50 percent over its best-selling predecessors.
The AIX network storage environment and ADSM demand storage hardware capable of performing a wide range of functions, including utilizing multidrive configurations, performing simultaneous server and workstation backup and handling the robust duty-cycle demands of HSM,'' said Foltyn.
In order to effectively combat two of tape's biggest enemies, heat and contamination, the SDX drives incorporate an internal Super Head Cleaner mechanism, which virtually eliminates the need for periodic head cleaning, and a variable duty-cycle internal fan, which automatically cools the electronics and baseplate whenever required.
Such rapid transfer rates allow users increased productivity by decreasing the amount of time needed to retrieve, run and archive high duty-cycle applications.