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3 Simple DC Motor Speed Controller Circuits Explained

3 easy to build speed controller circuits for DC motors are presented here, one using Mosfet IRF540, second using IC 555 and the third concept with IC 556 featuring torque processing. Design#1: Mosfet based DC Motor Speed Controller A very cool and easy DC motor speed controller circuit could be build using a just a … Read more3 Simple DC Motor Speed Controller Circuits Explained

4 Simple Clap Switch Circuits using Transistors, Opamp, and IC 555

Want to build a simple clap switch circuit that will toggle any load in response to your claps? The article is presented exactly for this purpose. Here we discuss 4 unique and simple designs which can be selected as per user preference. Overview The article talks about what the title suggests – a clap switch. … Read more4 Simple Clap Switch Circuits using Transistors, Opamp, and IC 555

7 Simple Inverter Circuits you can Build at Home

4047 simple inverter circuit

These 7 inverter circuits may look simple with their designs, but are able to produce a reasonably high power output and an efficiency of around 75%. Learn how to build this cheap mini inverter and power small 220V or 120V appliances such drill machines, LED lamps, CFL lamps, hair dryer, mobile chargers, etc through a … Read more7 Simple Inverter Circuits you can Build at Home

How to Make Simple Boost Converter Circuits

simple boost converter circuit using BJT

A couple of simple boost converter circuts are explained in this post, whch can be build and applied by any hobbyists for their own specific requiremenet. What is a Boost Converter A boost converter circuit is a design intended for stepping-up or boosting a small input voltage levels to a desired higher output voltage level, … Read moreHow to Make Simple Boost Converter Circuits

Simple 150 Watt Amplifier Circuit using Transistors

In this post we learn how to make a simple 150 watt power amplifier circuit using a typical OCL design which ensures cheap layout and use of minimum components, with high reliability. Introduction Referring to the figure a perfectly symmetrical OCL based amplifier can be seen , using discrete components suitable for all electronic enthusiasts … Read moreSimple 150 Watt Amplifier Circuit using Transistors

Emitter-Follower Transistor Application Explored

In this post we learn how to use a transistor emitter follower configuration in practical electronic circuits, we study this through a few different example application circuits. An emitter follower is one of the standard transistor configurations which is also referred to as common collector transistor configuration. Let’s try to first understand what’s an emitter … Read moreEmitter-Follower Transistor Application Explored

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