current loop


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current loop

[′kər·ənt ‚lüp]
(electricity)

Current loop

In electrical wiring, a situation in which separation of hot and neutral leads results in higher than normal electromagnetic fields.

current loop

A serial transmission method that uses a closed loop. It originated with teletype machines that transmitted 20 mA (milliamperes) of current for a 1 bit and the absence of current for a 0 bit. A 60 mA loop is also used for digital signals. A common analog current loop is 4-20 mA (4 to 20 mA), which is widely used for process automation. Current loops provide a better signal-to-noise ratio (SNR) than voltage-based systems. Contrast with RS-232. See 4-20 mA.
References in periodicals archive ?
For two specific field configurations, the large current loop and the dipole, the system is simplified, obtaining a leading order model.
Parameter Value Inner current loop controller proportional term, [k.
As such, the ESL of a mounted MLCC directly relates to the area of an idealized current loop ([L.
The second proposes to improve the dynamic properties of current loop by increasing the rate of control algorithm response without increasing the pulse width modulation (PWM) carrier frequency.
Tsang et-alused a control technique where he decomposed buck converter into voltage and current loops [8].
The system has an additional inner current loop control that includes a current controller and measurement filtering; its equivalent dynamics is part of the open-loop dynamics for the speed control; this current loop control has an equivalent model G.
Mohamed's "See the Light" (GDN, July 13) letter clearly indicates that the current loop system surpasses the need for a countdown system with a few reasons given to indicate its superiority over the old countdown system.
This current loop corresponds to the current of the drain to the source through the MOSFET chip.
These two-wire instruments are loop-powered and support both source or sink output wiring connections on the current loop with a 12-32 V dc supply.
From the basic result (1) we can use superposition of several such current segments to obtain the vector potential of a closed current loop of area S.
The series incorporates a new current loop design that achieves an industry leading frequency response of up to 3 kHz, and an auto-tuning function that performs optimal configurations and minimizes position error and settling time to almost zero.