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Most of electronic circuit lovers asked about electronic symbols.So today I'm going to give you useful electronic symbols.I got these things from my electronic book called 100 electronic circuit.I suppose this will be useful for you.

This is a very useful circuit diagram.We all know we can't see IR signals with our normal eye.So that when our remote controllers are not working it is difficult to check whether our  remote controller is working or not .So I think this circuit will help you to detect IR signals Note # Now we can see IR signals with a digital camera or your mobile cam # Build this circuit on a PCB # Don't supply over 9V

This is a simple multivibrator circuit.This circuit can be operated with 9V power supply.Most of guys asked  9V multivibrator because they wanted to attach a multivibrator circuit for their bicycles.I suppose now you all will be able to attach this circuit for your bicycle.   Note:  # Build this circuit on a PCB  # Don't supply power over the limit  # use two color LEDS

Voltage and Current (V-I)characteristics of many devices are useful to know the nature of the device. Here are some V-I characteristics Resistor 1)  Resistor : Its a linear device whose V-I curve is a straight line passing through the origin. It implies that as the voltage increase the current also increases for resistors. Diode 2)  Diode : Diode is a non linear device, which allows the flow of current only in one direction(in forward bias) and does not allow the flow of current in reverse bias condition. Voltage source 3) Voltage source: It is a non linear device. Current source 4) Current source: Its a non linear device. Linear devices are having a straight line passing through the origin. Non linear devices does not have a line passing through origin.

T his time we shall be dealing with the practical application of the basic transistors; be it BJT or MOSFET each of these act as a switch in vivid applications. By the not just a switch!! These are high performance switches which work at very high switching speeds...may be in fraction of secs or milli secs! Now, What do you understand by the term Switch?? Definition:   A switch is a device for making and breaking the connection in an electric circuit. Since the basic definition is lucid now, lets go into further details. Switches can be of two types :  Electromechanical switch Electronic switch Electromechanical Switch:  The switches that you use in your homes for day-to-day purposes like turning on your fans and lights or the motorized toy cars we used to play with. The fig below shows the inside out diagram of a basic level electromechanical switch.   As we are more concerned with the electronics side, we shall not go in depths with this electromechanical switch.  If you wanna read f

Diodes is a two terminal electronic device which allows the flow of current in only one direction and high resistance in opposite direction. The most common diode used currently are p-n junction diode. The diodes are of different types as illustrated below: p-n junction Diodes Avalanche Diodes Zener Diodes LED(light emitting diode) Photo Diodes Sckottky Diodes Tunnel Diodes Gunn Diodes Laser Diodes Pin Diodes p-n junction diode:  A pn junction diode is made up of silicon  or  germanium  doped at certain level. Any pentavalent or trivalent impurities can be added to form pn junction diode. It can be either a donor if pentavalent impurities are added or acceptor when trivalent impurities are added. p-n junction diodes are the electronic components that can allow the flow of current in only forward direction and gives 100 percent resistance in reverse direction. Avalanche Diode:  These are the diodes which conducts in the reverse direction when the reverse bias voltage exceeds the breakdo

The essence of communication is an exchange of information. From the very dawn of human civilizations it has been an endless effort to find means and ways of sharing thoughts, ideas, expressions and messages conveying much value. Language was the first means of communication, be it Arabic or Latin; which was gradually enriched to make the mode of communication more effective. This made possible the exchange of written messages or documented information that could not only be sent to distant locations but could also be handed down the generations and preserved for posterity. Many other modes of sending messages evolved from the early days of human interaction. Tireless endeavors at finding ways and means of conveying information effectively evolved gradually into many time-tested communication techniques.  The History... Unfortunately, all primitive modes of communication were restrictive in nature. They were inefficient as far as speed and range of communication were con

The blog will deal with all your basic doubts of basic electronics, so here in this post you will learn some basic electronic devices. Ever wondered while your faculty suddenly asks you to tell some basic electronic devices, then what you should reply....! The answer is below.... Here is the list of basic electronic devices: Resistors Capacitors Diodes Transistors Transducers Sensors Switches Detectors  Resistors :  A Resistor is a element which restricts the flow of current and dissipates that energy into heat. So when a current flows through a resistor then it restricts the flow of current but that energy is converted into heat as energy can neither be destroyed nor created. We can take example of a resistor connected in series with LED (Light emitting diode) to limit the current passing and hence protecting the LED to get damaged. A resistor is of two types: 1) Fixed type                                         2) Variable type A fixed type resistor is having a fixed resistance valu

As previously mentioned ( http://tahmidmc.blogspot.com/2013/09/200000-views-ithaca-arm-and-dmips.html ) I’m doing an independent study under the supervision of Professor Bruce Land here at Cornell University. A semester has passed and I will be continuing my independent study next semester. The independent study (that I'm doing and will be continuing) is on exploring and comparing the peripheral modules of the Microchip PIC32MX250F128B (on the Microstick II platform) and the Atmel AT91SAM3X8E (on the Arduino Due platform). This semester, I've done a good amount of introductory exploration of the two 32-bit microcontrollers. Here are the links to the datasheets of the two microcontrollers on which my independent study is based: AT91SAM3X8E: www.atmel.com/Images/doc11057.pdf PIC32MX250F128B: http://ww1.microchip.com/downloads/en/DeviceDoc/61168E.pdf The Microchip PIC32MX250F128B is a 32-bit RISC microcontroller based on the MIPS M4K core. In this independent study, I have used th