PnP

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PNP

(electronics)
A type of bipolar transistor consisting of a layer of N-doped semiconductor (the "base") between two P-doped layers (the "collector" and "emitter"). PNP transistors are commonly operated with the emitter at ground and the collector at a negative voltage.

In the 1960s, the germanium PNP transistor was the cheapest and best for use at ordinary temperatures. The leakage current from collector to base in this type of device is larger than for the silicon transistor, and also varies more with temperature. The effect of these deficiencies can be lessened by proper biasing and feedback, which can make the circuit both serviceable and reliable. Neither germanium nor PNP transistors are as common today.

The voltages used on a PNP transistor are inverted when compared with vacuum tubes. Further, the behaviour of vacuum tubes is usually described in terms of voltages whereas transistors are better described in terms of current.

PNP

(architecture)
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

PnP

(1) See Plug and Play.

(2) (PNP) (Positive Negative Positive) See PN junction.
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Pediatric nurse practitioner salary and practice: Results of a midwest metropolitan area survey.
GOTTESMAN is a past president of the National Association of Pediatric Nurse Practitioners (NAPNAP), and she now chairs NAPNAP's Healthy Eating and Activity Together (HEAT) National Initiative.
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Maureen Kelly is a Pediatric Nurse Practitioner in Pediatric Gastroenterology at the University of North Carolina at Chapel Hill and is a Clinical Assistant Professor at the University of North Carolina at Chapel Hill School of Nursing.
This volume is a review aid for nurses preparing to pass primary care pediatric nurse practitioner tests and exams.
Velazquez of Rutland, a pediatric nurse practitioner, at the Goddard School of Science and Technology in Worcester, where she treated Edwin for pink eye.
Thomas received a Bachelor of Science in Nursing from the University of Virginia, a Masters in Nursing from the University of Kansas and education as a Pediatric Nurse Practitioner from the U.S.

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