pass element

pass element

[′pas ‚el·ə·mənt]
(electronics)
Controlled variable resistance device, either a vacuum tube or power transistor, in series with the source of direct-current power; the pass element is driven by the amplified error signal to increase its resistance when the output needs to be lowered or to decrease its resistance when the output must be raised.
References in periodicals archive ?
In addition, the clamp's use of a very low resistance p-channel MOSFET as the pass element ensures that any EMI issues are removed.
The bus pass element of the school transport budget was overspent in 2010/11 by pounds 32,000, and long term demand is expected to rise.
In addition, AP9060's use of a very low resistance p-channel MOSFET as the pass element ensures that any EMI issues are removed.
She will examine the proposals drawn up by council benefits and admissions manager Sue Heawood, who states: "The bus pass element of the school transport budget was overspent in 2009/10 by pounds 91,000," adding, "While some of this overspend will be reduced in 2010/11 through savings.
Some LDOs have better performance in certain categories than others based on the type of pass element employed.
For the pass element, a high drain current 60V N-channel MOSFET has been used instead of a bipolar transistor to reduce the overall bias current.
The new device significantly reduces conduction losses associated with the pass element to dramatically improve the efficiency of the entire system.
Most LDO regulators use an N- or P-channel FET pass element and can offer a dropout voltage of 100 mV or less.
One of the first approaches in integrating fault protection with an analog switch was for a certain type of multiplexer whose pass element consists of three MOSFETs in series (n-channel/p-channel/n-channel).
The power losses can be approximated by the product of input to output voltage difference times the current flowing through the linear pass element.