Vcc

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Vcc

An electronics designation that refers to voltage from a power supply connected to the "collector" terminal of a bipolar transistor. In an NPN bipolar (BJT) transistor, it would be +Vcc, while in a PNP transistor, it would be -Vcc.

Double letters (cc) refer to power supply voltages. For example, Vee refers to the "emitter" voltage. In CMOS logic, Vss refers to the "source" voltage, and Vdd is the "drain" voltage.

Single letters refer to the voltage relative to ground; for example, Vc is the "collector" voltage relative to ground. Two different letters indicate the voltage between two terminals; for example: Vbe is the "base" to "emitter" voltage drop, while Vce is the "collector" to "emitter" voltage.
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References in periodicals archive ?
VDD said in its statement to the press that a criminal procedure has been launched against one person on August 2, 2016, in suspicion of illegal participation in the armed conflict in eastern Ukraine.
The reported cut-off limits for VDD is serum 25(OH) D level < 20 ng/ml and for VD insufficiency as <30ng/ml.5 A high prevalence of VDD has been found in various disorders including diabetes, chronic kidney disease and respiratory tract infections.7-9 Exacerbation of asthma, reactivation of tuberculosis and human immunodeficiency virus (HIV) have also been reported in patients with low VD levels.10-12 VDD is the most common cause of nutritional rickets and growth failure in children.
Keywords and abbreviation:Vitamin D (VD) Vitamin D deficiency (VDD), Hypervitaminosis D, Vitamin D toxicity.
As device geometries shrink with each generation of devices, so do the associated supply voltages (VDD).
The prevalence of VDD and associated multiple microvascular complications in subjects with diabetes was significantly higher compared to subjects without diabetes [7].
Worldwide studies have shown an association between VDD and tissue inflammation, endothelial dysfunction, arterial stiffness, atherosclerotic plaque formation (coronary heart disease [CAD], peripheral arterial disease), left ventricular hypertrophy, atrial fibrillation, metabolic syndrome, and diabetes.
The tests are carried out by sweeping the voltage of the front gate from 0 (-0.6V) to 0.6V (0V) for N-type FinFET (P-type FinFET), when the back gate is activated by being tied to VDD (ground) or disabled by being tied to ground (VDD), respectively.
Studies in patients with sickle cell disease (SCD) revealed high prevalence of VDD in these patients regardless of their age or ethnic background [4-7].
Some of the risk factors associated with VDD such as HIV infection, teenage pregnancy, preterm, and low birth weight deliveries are prevalent in our setting [3, 4].
19] However, there are differing opinions and results from studies regarding the correlation of VDD with TB.
DTMOS was proposed for obtaining excellent subthreshold characteristics at ultra-low Vdd [27-29].
A randomized, double-blind study (6) has revealed that vitamin D supplementation indeed changed the expression of genes linked to CVD, which have been associated with vitamin D deficiency (VDD).