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Electronics Theory

How to Use Resistors with LED, Zener and Transistor

Last Updated on October 6, 2019 by Swagatam 56 Comments

circuit2

In this post I have explained how to use resistors while designing an electronic circuits using LEDs, zener diodes, or transistors. This article can be very useful for the new hobbyists who normally get confused with the resistor values to be used for a specific component and for the desired application. What is a Resistor […]

Filed Under: Electronics Theory Tagged With: LED, Resistors, Transistor, Zener

How Wireless Power Transfer Works

Last Updated on August 29, 2019 by Swagatam 41 Comments

wireless2Bpower2Btransfer 1

Wireless power transfer is a process in which electrical energy is transferred from one system to another system through electromagnetic waves without using wires or any physical contact. In this post I have explained regarding how wireless power transfer works or the transfer of electricity through air without using wires. You might have already come […]

Filed Under: Electronics Theory, Power Supply Circuits Tagged With: Power, Transfer, Wireless, Works

How Thyristors (SCR) Work – Tutorial

Last Updated on August 18, 2019 by Swagatam 8 Comments

scr 2

Basically an SCR ( Silicon Controlled Rectifier) which is also known by the name Thyristor works quite like a transistor. What  SCR Stands for The device gets its name (SCR) due to its multi layered semiconductor internal structure which refers to the “silicon” word in the beginning of its name. The second part of the […]

Filed Under: Electronics Theory Tagged With: SCR, Thyristors, Tutorial, Work

Understanding Pull-Up and Pull-Down Resistors with Diagrams and Formulas

Last Updated on August 9, 2019 by Swagatam 2 Comments

calculation

In this post I am going to explain pull-Up resistor and pull-down resistor, why they are commonly used in electronic circuits, what happens to electronic circuits without Pull-Up or Pull-down resistor, and How to calculate Pull-Up and Pull-down resistor values and finally we will see about open collector configuration. How Logic Inputs and Outputs Work […]

Filed Under: Electronics Theory Tagged With: Diagrams, Down, Formulas, Pull, Resistors, Understanding

Understanding PID Controller

Last Updated on August 3, 2019 by Swagatam 4 Comments

PID

The first successful assessment of PID control theory was practically verified in the field of automatic steering systems for ships, way back around the year 1920. After this it was applied in various industrial automatic process controls requiring optimized and accurate manufacturing output specifications. For manufacturing units PID was popularly implemented for achieving precise pneumatic […]

Filed Under: Electronics Theory Tagged With: Controller, PID, Understanding

P-Channel MOSFET in H-Bridge Applications

Last Updated on August 3, 2019 by Swagatam Leave a Comment

p channel selection

Implementing P-channel MOSFETs in an H-bridge circuit may look easy and enticing, however it may require some stringent calculations and parameters for achieving an optimal response. P-channel MOSFETs are usually implemented for load ON/OFF switching. The ease-of-use of P-channel options on the high side allows them to be very convenient for applications like Low-Voltage Drives […]

Filed Under: Electronics Theory Tagged With: Applications, Bridge, Channel, MOSFET

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