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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

3 Best Joule Thief Circuits

Technically it may seem impossible to illuminate a 3.3V LED with a 1.5V source, but the amazing concept of joule thief makes this look so easy and effective, and virtually unbelievable. Moreover the circuit additionally makes sure that not a single drop of “joule” is left unused in the cell. A joule thief circuit is … Read more3 Best Joule Thief Circuits

4 Tested Clap Switch Circuits

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 Tested Clap Switch Circuits

IC TP4056 Li-Ion Battery Charger Circuit

The post elaborately explains 3 automatic intelligent single chip CC/CV or constant current, constant voltage 3.7V Li-Ion battery charger circuits, using specialized Hi-End IC TP4056, IC LP2951, IC LM3622, with battery temperature sensing and termination facility. Design#1 CIRCUIT DESCRIPTION The first design is probably the smartest one, incorporating the IC TP4056 which is a comprehensive … Read moreIC TP4056 Li-Ion Battery Charger Circuit

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

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