What is beta (β) in BJTs
In this article we will discuss regarding beta (β) and what is hFE in BJT configurations. We will find the similarity between ac and dc betas, and also prove through formulas why the factor beta is so...
View ArticleHow to Calculate and Optimize Modified Sine Waveform
I am sure you might have often wondered how to accomplish the correct way of optimizing and calculating a modified square wave such that it produced almost an identical replication of a sine wave when...
View ArticleLoud Pistol Sound Simulator Circuit
A pistol sound generator circuit presented here can be used as button operated starting sound during racing events or marathons, or simply to deter wild animals and thieves in remote areas. The concept...
View ArticleArduino 3 Phase Inverter Circuit with Code
In this post we learn how to make a simple microprocessor Arduino based 3 phase inverter circuit which could be upgraded as per user preference for operating a given 3 phase load. We have already...
View ArticleBJT Common Collector Configuration
In our previous articles we have learned the other two transistor configurations, namely the common-base and the common-emitter. In this article we discuss the third and the final design which is...
View ArticleHow to Troubleshoot Transistor (BJT) Circuits Correctly
BJT troubleshooting techniques is a huge topic and therefore including 100 % solutions and strategies can be perhaps difficult within a single article. Basically, the user should know about a handful...
View ArticleDesigning Op amp Oscillators
In this post we learn how to design opamp based oscillators, and regarding the many critical factors required for generating a stable oscillator design. Op amp based oscillators are normally used to...
View ArticlePhase Shift Oscillators – Wien-Bridge, Buffered, Quadrature, Bubba
In the previous post we learned about the critical considerations required while designing an op-amp based phase shift oscillator. In this post we will take it further ahead and know more regarding the...
View Article1000 watt to 2000 watt Power Amplifier Circuit
In this article we elaborately discuss a simple to built yet awesome 1000 watt amplifier circuit, which could be easily upgraded to achieve upto 2000 watt output. It uses relatively fewer components...
View ArticleHigh Current Zener Diode Datasheet, Application Circuit
Zener diodes that are normally available are mostly 1/4 watt or 1/2 watt types. And it is quite valid since the basic function of zener is to create stabilized reference voltage. Zener diodes are not...
View ArticleLM3915 IC Datasheet, Pinout, Application Circuits
If you are having difficulty in understanding how to use an LM3915 IC, this article will help you to easily construct any desired applicable circuit using this IC. Here, we will discuss the datasheet...
View Article27 MHz AM/FM Transmitter Circuit for Citizen Band Communication
The 10 km range, 27 MHz transmitter circuit explained here uses citizen's band which consists of 2 main types of users: radio control (R/C) modellists and users of low-power FM transceivers for local...
View ArticleCapacitor Inductor Calculations
Inductors can be imagined as the opposite of capacitors. The main difference between a capacitor and an inductor is that a capacitor carries a protective dielectric between its plates, which inhibits...
View ArticleH-Bridge Bootstrapping
Bootstrapping is a crucial aspect that you will find in all H-bridge or full bridge networks with N-channel mosfets. It is a process in which the gate/source terminals of the high side mosfets are...
View Article2 Hi-Fi 40 Watt Amplifier Circuits Explored
In this post you will learn about a couple of low distortion Hi-Fi 40 watt amplifier circuits that can be further upgraded to higher wattage through some minor tweaks. This article was contributed to...
View ArticleField-Effect Transistors (FET)
The field-effect transistor (FET) is a three-terminal device designed for a wide range of circuit applications that complement, to a great level, those of the BJT transistor. While you will find...
View Article2N3055 Datasheet, Pinout, Application Circuits
In this post we comprehensively discuss the pinout function, electrical specications, and application designs for the power transistor 2N3055. If you are an electronic hobbyist, you might have...
View ArticleBuild this Open Baffle Hi-Fi Loudspeaker System with Crossover Network
The open baffle hi-fi, high quality speaker design introduced here provides a substitute to the common loudspeaker housing. Its sound emission pattern resembles electrostatic pattern. It works without...
View ArticleHow to Repair Mosquito Swatter Bats
This post provides some general tips regarding how to repair a mosquito swatter bat or racket, through quick steps. Mosquito rackets today have become an indispensable tool in every house, simply...
View ArticleMOSFET (Depletion-Type)
Two main types of FETs that presently exist are: JFETs and MOSFETs. MOSFETs can be further classified into depletion type and enhancement type. Both these types define the fundamental mode of operation...
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