You searched for TRANSISTOR - Page 36 of 66

Smoothing Circuits

Smoothing Circuits: The rectified a.c. consists of a series of undirectional half waves of current or voltage. It is generally desirable to smooth this output. The various filters used for…

Logic Circuit in Static Relay

Logic Circuit in Static Relay: The concept of Logic Circuit in Static Relay can be better understood by considering the logic operations performed by the devices rather than the actual…

Thyristor in Static Relay: The structure of Thyristor in Static Relay consists of four alternate p-and n-type layers. In the thyristor (also called a silicon controlled rectifier—SCR) connections are made…

Hall Effect Relay Circuit

Hall Effect Relay Circuit: Hall Effect Relay Circuit is utilized to give a phase comparator. The effect is very predominant in certain semiconductors such as indium arsenide, indium antimonide, indium…

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…

Phase Comparison Carrier Protection

Phase Comparison Carrier Protection: The phase comparison pilot-relaying operates on the principle of comparing the phase position of the currents at the two ends of the protected section. The Phase…

Optoelectronic Devices Articles

Optoelectronic Devices Articles: Light Units: The total light energy output, or luminous flux (Φs), from a source can be measured in milliwatts (mW) or in lumens (1m), where 1 Im…

Thyristors Articles

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…