variable-reactance+diode

См. также в других словарях:

• Variable capacitor — Rotary variable capacitor A variable capacitor (also known as a variable air condenser ) is a capacitor whose capacitance may be intentionally and repeatedly changed mechanically or electronically. Variable capacitors are often used in L/C… …   Wikipedia

• PIN diode — Layers of a PIN diode A PIN diode is a diode with a wide, lightly doped near intrinsic semiconductor region between a p type semiconductor and an n type semiconductor region. The p type and n type regions are typically heavily doped because they… …   Wikipedia

• Capacitor — This article is about the electronic component. For the physical phenomenon, see capacitance. For an overview of various kinds of capacitors, see types of capacitor. Capacitor Modern capacitors, by a cm ruler Type Passive …   Wikipedia

• MESURE - Mesures électriques et électroniques — Les mesures électriques et électroniques, grâce à l’apport des semiconducteurs, des méthodes numériques et des systèmes asservis, apparaissent à l’heure actuelle comme une technique clé dans le domaine des mesures en général. L’existence de… …   Encyclopédie Universelle

• Crystal radio — Crystal set redirects here. For the Australian rock band, see The Crystal Set. A modern reproduction of an antique crystal set. It is tuned to different stations by moving the sliding contact (right) up and down the tuning coil (red). The device… …   Wikipedia

• Transformer — This article is about the electrical device. For the toy line franchise, see Transformers. For other uses, see Transformer (disambiguation). Pole mounted distribution transformer with center tapped secondary winding. This type of transformer is… …   Wikipedia

• HYPERFRÉQUENCES — D’après la définition la plus couramment admise, les hyperfréquences représentent des ondes électromagnétiques dont la longueur d’onde est de l’ordre du centimètre, et que l’on utilise notamment en technique radar et en transmission hertzienne.… …   Encyclopédie Universelle

• semiconductor device — ▪ electronics Introduction       electronic circuit component made from a material that is neither a good conductor nor a good insulator (hence semiconductor). Such devices have found wide applications because of their compactness, reliability,… …   Universalium

• Network analysis (electrical circuits) — Linear Network Analysis Elements …   Wikipedia

• Cathode ray tube — Cutaway rendering of a color CRT: 1. Three Electron guns (for red, green, and blue phosphor dots) 2. Electron beams 3. Focusing coils 4. Deflection coils 5. Anode connection 6. Mask for separating beams for red,… …   Wikipedia

• Parametric oscillator — A parametric oscillator is a simple harmonic oscillator whose parameters (its resonance frequency omega and damping eta) vary in time in a defined wayAnother intuitive way of understanding a parametric oscillator is as follows: a parametric… …   Wikipedia