Electronics

Electronics, embedded, microcontroller, pic, projects, hobby circuits, circuit, blog, transistor, technology

What’s Inside an Electrolytic Capacitor?

The aluminium electrolytic capacitor consists of two foils sandwiched between absorbent paper, and wound tightly into a cylinder. The anode, is composed of pure aluminium foil with aluminium oxide formed electrolytically on the surface. The foil has been etched to increase the effective surface area. The cathode is made of high-absorption paper mixed with an electrolyte, in contact with a cathode foil. The electrolyte is used to ensure good contact with the anode, by permeating its etched structure, and also to repair any flaws in the oxide layer when the capacitor is polarised....

July 29, 2012By Electronics, What is Inside?0 CommentsRead more...
Nanowire 3D Transistor New Design

Nanowire 3D Transistors Becomes More Compact

A transistor is a very important electronic device which is used to amplify and switch electronic signals. Semiconductor Chip makers started to use 3D Transistors in 2011 to reduce the size and increase the efficiency of chips. They can pack more 3D transistors into a single chip since it is much more compact than traditional planar transistor. The amount of compactness will not be sufficient for future generations of semiconductor chips and to keep the pace of Moore's Law. Thus there is a...

June 23, 2012By Electronics, Electronics News0 CommentsRead more...
PIC16F877A

Interfacing EEPROM with PIC Microcontroller

What is an EEPROM ? EEPROM is an abbreviation for Electrically Erasable  Programmable Read Only Memory and it is a Non-Volatile memory. It is used in computers and other electronic devices to store data that must me saved during no power supply. EEPROM is a class of ROM (Read Only Memory) which can be electrically erased in bit by bit and able to store new data. A small amount of EEPROM (usually 128/256 bytes) is available internally with PIC Microcontrollers. I have already posted about Using...

June 22, 2012By Electronics, MikroC, PIC Microcontroller, Tutorials, , , , 11 CommentsRead more...
Servo Motor

Servo Motor

Introduction Servo Motors are ordinary geared down DC Motors equipped with servo mechanism for precise control of angular position. A servomechanism or servo refers to an error sensing negative feedback which is used to correct the performance of a device. Servos are used for precise positioning in robotic arms, legs, RC Aeroplanes, Helicopters etc. Servo Motors do not rotate continuously, their rotation is limited between fixed angles. Usually these motors have rotation limit from 90° to 180° and some special have limit 360° or more. An ordinary...

June 16, 2012By Electronics, 2 CommentsRead more...
Stepper Motor or Step Motor

Stepper Motor or Step Motor

Introduction to Stepper Motor It is a brushless, synchronous DC electric motor, which divides the full rotation into a number of equal steps. It is also known as Step Motor. For example, in the case of a 200 step motor, one complete rotation (360°) is divided in to 200 steps, which means one step is equal to 1.8°. It can take only one step at a time and each steps are equal. The exact position of a stepper motor can be controlled...

June 13, 2012By Electronics, 2 CommentsRead more...

Integrated sensors to handle extreme conditions

A team ofengineers has created silicon carbide based amplifiers having applications in both aerospace and energy industries. The devices can take extreme heat even upto 600 degree Celsius.These integrated circuits are designed over a wide-band-gap semiconductor. According to Dr.Garverick, "Most semi-conductors are made out of silicon, but silicon will not function above 300 degrees Celsius, and there are some important applications above that range." So his team started to use silicon carbide,which begins to act as semiconductors at high temperatures. Engineers at NASA...

June 12, 2012By Electronics0 CommentsRead more...

Custom-Made Magnets

The properties of a substance depends almost entirely on its constituent atoms and how these atoms interact with each other. But a finite number of atom types, imposes a limit on the variation of properties that a conventional material may have. But a new range of engineered materials called metamaterials have opened a whole new dimension in this field . Metamaterials are composed of sets of nanostructures which are able to interact with electromagnetic waves in almost the same way...

June 7, 2012By Electronics, , , , 0 CommentsRead more...
rfid tag

RFID : Radio Frequency Identification

What is RFID or Radio Frequency Identification ? How it Works ? Radio Frequency Identification is a term that used to describe a wireless system that used for Automatic Identification and Tracking, it uses Radio Frequency electromagnetic fields to transfer data from tag attached to an object. Unlike UPC (Universal Product Code) Bar Code, this technology doesn't need line of sight communication and it can be read through clothing, human body or any non metallic materials. Therefore it is an excellent replacement for UPC...

June 4, 2012By Electronics, 1 CommentRead more...
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