Category: Electronics

Electronics session based notes

Digital Multimeter

A multi meter  also known as a VOM (Volt-Ohm meter), is an electronic measuring instrument that combines several measurement functions in one unit. Multimeter would include basic features such as the ability to measure voltage, current, and resistance.  Digital multimeters are now far...

Full Wave Rectifier

Rectifier is defined as a electronic circuit which employs one or more diodes to converting ac voltage into unidirectional pulsating voltage. A Rectifier utilizes PN Junction diode. During positive half cycle of ac input,...

Rectifiers

Rectifiers: Rectifier is defined as a electronic circuit which employs one or more diodes to converting ac voltage into unidirectional pulsating voltage. A Rectifier utilizes PN Junction diode. During positive half cycle of ac...

Silicon Controlled Rectifier

  Silicon Controlled Rectifier (SCR)       A silicon controlled rectifier (SCR) is the oldest and most widely used member of the thyristor family. The SCR is a four layer pnpn device with three junctions. It has three...

8051 Specifications

8051 Specifications In 1981, Intel Corporation introduced an 8-bit micro controller called the 8051. This micro controller had 128 bytes of RAM, 4K bytes of on-chip ROM, two timers, one serial port, and four...

Programmable Logic Control (PLC)

Programmable Logic Control PLC stands for programmable logic control is microprocessor based programming technique. It controls the different process and is programmed according to the operational requirement of that process. It consists of following...

AVR microcontroller

AVR microcontroller Features of AVR microcontroller  This module performs numerous functions that have two-directional inputs and output ports which can be configured with the pull-up resistances. There are numerous inner oscillators, consisting of RC...

8255 Programmable Peripheral Interface

8255 Programmable Peripheral Interface The parallel input-output port chip 8255 is also called as programmable peripheral input- output port. It has 24 input/output lines which may be individually programmed in  three groups of eight...

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