An optocoupler (or an optoelectronic coupler) is basically an interface between two circuits which operate at (usually) different voltage levels. The key advantage of an optocoupler is the electrical isolation between the input and output circuits. With an optocoupler, the only contact between the input and the output is a beam of light. Because of […]
What is an LCD/Definition of Liquid Crystal Displays The liquid-crystal display has the distinct advantage of having a low power consumption than the LED. It is typically of the order of microwatts for the display in comparison to the some order of milliwatts for LEDs. Low power consumption requirement has made it compatible with MOS
A Light Dependent Resistor (LDR) is also called a photoresistor or a cadmium sulfide (CdS) cell. It is also called a photoconductor. It is basically a photocell that works on the principle of photoconductivity. The passive component is basically a resistor whose resistance value decreases when the intensity of light decreases. This optoelectronic device is
You might have read about a “Diode” in many of your text books or electronics magazines/websites. But you still don’t get the concept? Don’t worry! In this article, we explain in detail about a semiconductor diode and its properties. Well, a diode is nothing but a PN junction. We have crafted two excellent articles about
What is a tunnel diode? Dr.Leo Esaki invented a tunnel diode, which is also known as “Esaki diode” on behalf of its inventor. Its a high conductivity two terminal P-N junction diode doped heavily about 1000 times greater than a conventional junction diode. Because of heavy doping depletion layer width is reduced to an extremely
Vacuum Diodes-Applications and Construction The simplest form of the electron tube for the production and control of free electrons is a Vacuum diode. Two electrodes are there for a vacuum diode known as anode and cathode. Cathode serves as an emitter of electrons where as anode serves as a collector of electrons. Cathode may be
 Note:- This article is currently under editing. You may refer this article later to get the full version In this article, we are going deep into resistors and different types of resistors. A resistor is one component that we use in every electronic circuit. Whats is resistance? “Resistance” by definition is the opposition to free
