Inductors are also energy storing (passive) components like capacitors. Unlike capacitors which store energy in the form of electric field, inductors store energy in the form of magnetic field. It is a simple wire wound into a coil around a core. As we know that current flowing through a wire develops a magnetic field around …
There are many types of amplifier. Class D amplifier is a type of them. It is very efficient amplifier (efficiency is up to 90-95%). This amplifier works on PWM technique. Audio signal applied to it first get converted into pulse width modulated signal and then it is amplified efficiently. After amplification it is converted back …
Buck boost converter is a DC to DC converter. A DC to DC converter converts the voltage levels of DC sources. We call it DC to DC converter because it take DC voltage as input and gives also DC voltage as output. I have published two separate project articles on buck converter and boost converter …
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Boost converter is a DC to DC step up converter. That means it converts any DC voltage to higher DC voltages. It doesn’t affect power much more so current will step down. Let’s say that we have 3.7 volts battery and we want to power a 5 volts device. In that case we need boost …
Understanding internet of things is very important nowadays because it is expanding at the exponential rate. Internet of things provides the facility of interconnecting computing devices, mechanical and digital machines, home accessories, sensors with unique identifier. It has the ability to transfer and receive data from internet by connecting to a network using WIFI. We …
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In the project of dc dimmer circuit we saw that how we can step down the voltage using PWM. But in that circuit there is a problem of high voltage peak. That can destroy the sensitive electronics devices. For that kind of electronics devices there is another step down circuit called buck converter. Buck converter …
Introduction to silicon controlled rectifier (SCR) You all must familiar with the diode. It is a device that allows current only in the forward direction. A silicon controlled rectifier or SCR in short is a device with a function to control its forward current also. It has one extra terminal to control the current. So, …
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The transformer is a very useful electrical device mostly used in transmission lines to change voltage levels. It consists of two electrically isolated coil (inductor) windings. It is electrically isolated but transfers energy using a changing magnetic field. The working principle of a transformer is mutual induction between both (it can be more than two) …
The capacitor is an energy-storing element like batteries. They are like a tiny rechargeable cells with very low capacity. The battery takes a long time to recharge and gives energy for a long time but in the case of capacitors, this charge and discharge process is quick. Now you can imagine where we can use …