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Transistor Relays

Transistor Relays: These are the most widely accepted type of static relays, so much so that when we say static relays, we can safely infer transistor relays only. The transistor…

Static Relays Basics and Classification

Static Relays Basics and Classification: A Static Relays Basics refers to a relay in which the measurement or comparison of electrical quantities is done in a static network which is…

Thyristors Articles: Silicon Controlled Rectifier Principle Operation: Silicon Controlled Rectifier Principle Operation (SCR) consists of four layers of semiconductor material, alternately p-type and n-type as illustrated in Fig. 19-1(a). Because…

Tunnel Diode Operation and Characteristics

Tunnel Diode Operation and Characteristics: Tunnel Diode Operation - A tunnel diode (sometimes called an Esaki diode after its inventor, Leo Esaki) is a two-terminal negative resistance device that can…

Voltage Variable Capacitors

Voltage Variable Capacitors: VVC Operation - Voltage Variable Capacitors diodes (VVCs) are also known as varicaps, varactors, and as tuning diodes. Basically, a Voltage Variable Capacitors is a reverse biased…

UJT Circuit Diagram

UJT Circuit Diagram: UJT Circuit Diagram Operation : The Unijunction transistor (UJT) consists of a bar of lightly-doped n-type silicon with a block of p-type material on one side, [see…

Silicon Controlled Rectifier Principle Operation

Silicon Controlled Rectifier Principle Operation: Silicon Controlled Rectifier Principle Operation (SCR) consists of four layers of semiconductor material, alternately p-type and n-type as illustrated in Fig. 19-1(a). Because of its…

Field Effect Transistors Articles

Field Effect Transistors Articles: Junction Field Effect Transistor Theory: n-Channel JFET – The operating principle of an n-channel Junction Field Effect Transistor Theory (JFET) is illustrated by the block representation…