How to Guide

This category cover topics of electronics “How to Guide”. Basic theory of electronics and question answer with how tech works with easy way with example. it also cover electrical fundamental like current, voltage and its calculation, some circuit design, device use and benefits etc.


How does a PTC relay with capacitor work?

PTC relay A PTC relay means positive temperature coefficient is a starting device for refrigerator compressors. It is responsible for providing power to the start winding for a brief moment to

What is the difference between MOSFET and HEMT?

In this topics we will understand what is difference between MOSFET and HEMT? Defination and use of Mosfet Mosfet (metal-oxide semiconductor field-effect transistor, pronounced maws-feht) is a special type of field-effect

What is pinch voltage?

When the gate voltage (-vgs) is made more negative, the channel width decreases until no more current flows between channels and the source is said to be pinched (similar to

How does the diode work?

When we talk about electrical and electronic circuits, we use the old convention, called the conventional current flow (from positive to negative). To get rid of any idea of ​​thinking

Why zener diode is used?

Zener diodes are widely used as voltage references and as shunt controllers to adjust voltage across small circuits. When connected in parallel with a variable voltage source so it is

Relationship of Voltage, Current, and Resistance

Relationship of Voltage, Current, and Resistance All circuits are a combination of three electrical properties: voltage, current and Resistance. Voltage is defined as the force that causes free electrons to

Effects of Current Flow

The current flow has four effects that are used in different ways: magnetism, heat, chemistry Action and physical shock. Magnetism When current flows in a conductor, it creates a magnetic

How do photodiode arrays work?

Working of photodiode How does photodiode work : A photodiode array (PDA) is a linear range of discrete photodiodes on an integrated circuit (IC). For spectroscopy it is placed at

How transistor can be used as a switch?

With a zero signal applied to the base of the transistor, it rotates “OFF” by acting as an open switch and zero collector current. The easiest way to change moderate

How do NPN transistors work?

The standard bipolar or BJT transistor is presented in two basic forms. An NPN type (Negative-Positive-Negative) and a PNP type (Positive-Negative-Positive). The most commonly used transistor configuration is the NPN