Simple 3 Watt and 5 Watt LED Driver Circuit Using IC 338

The IC LM338 as we probably are aware, is a profoundly adaptable gadget with regards to controlling voltages and current levels....

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Remote control switch on or off for home appliances

Associate this circuit to any of your home apparatuses (light, fan, radio, and so on) to make the machine turn on/off from a TV, VCD or DVD remote control. The circuit can be activated from up to 10 meters. ...

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Simple Car Audio Amplifier Circuit

A straightforward low power car stereo amplifier circuit taking into account TDA 2003 is showed here...

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Using Arduino as a simple Web Server along with Ethernet shield

Using an Ethernet shield along with Arduino board you can turn it into a simple web server which can be accessed by anyone on the internet, and by accessing that server with a browser running on any computer connected to the same network as the Arduino board, you can: Control hardware from the webpage like fan or lights (using Javascript buttons). Read...

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Simple +-400Watt Amplifier using TDA7294 or TDA7293 + Power Transistors 2SC5200 and 2SA1943

This additional part can be added to the traditional chip amp made using TDA7294 or TDA7293 to gain extra power in output. The traditional chip amp produces about 40-50watt rms output which isn't any less but by adding these power transistors it can maximize the output to extreme...

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Stun Gun Circuit Diagram using 555 timer IC

CAUTION: Before going to explain about this circuit, we are going to strictly suggest that DO NOT TRY TO IMPLEMENT IT PRACTICALLY AS IT PRODUCES VERY HIGH VOLTAGE.  DO IT ONLY UNDER A PROFESSIONAL'S GUIDANCE! A stun gun is usually a device used to produce a very high voltage, low current signal and is used mostly as a weapon to stun or send...

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A simple 12V battery charger schematic using LM317

This is a simple 12Volt Battery Charger Circuit which can be made using less components...

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500 Watt Inverter using Transistor 2N3055 along with Transformer ratings

This Circuit has been corrected while it had minor issues in the past, the circuit has been fully debugged for any problems and made 100% working now...

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Making your own 10,000 to 25,000 volt capacitor

We are going to make a big High Voltage Capacitor, so please do not try this unless you are an expert in handling high voltage equipments....

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Doing a Country Style track lighting.

Track lighting is another expansion in enriching our homes environment. It gives an extremely lovely lightning effect. One can change its brightening through a control unit in regards to the amount of light is needed.&nbs...

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While innovation is at it's peak are you still wondering how solar panels work?

Solar Panels are turning out to be more well known today as a distinct option for conventional power era systems. By utilizing Solar Panels, we can outfit the Heat and Light energy gave by the sun and create power for anything from an icebox to a car. Have you ever seen Solar Panel secured rooftops or school zone signs with Solar Panels on and thought...

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Audio Clipping Peak Indicator using IC TL062

This Simple Audio Clipping Peak Indicator circuit was expected to distinguish clipping in preamp stages, mixers, equalizer, amplifiers and so on. It can be utilized as a different, convenient unit, to signal by using some LEDs when the output wave form a specific sound stage is "cutting" i.e. is coming to the onset of its maximum permitted peak voltage...

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How to make a 2 Watt audio amplifier from discrete components

A 2 Watt audio amplifier made from discrete components...

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How to make your own simple 5pf Capacitor

It is surely possible to make your own capacitors.At least those with small values, like up to 5-100pF ...

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Simple 150 Watt amplifier circuit using transistors

This is the cheapest 150 Watt amplifier circuit you can make,I think.Based on two Darlington power transistors TIP 142 and TIP 147 ,this circuit can deliver a blasting 150 W Rms to a 4 Ohm speaker.Enough for you to get rocked?;then try out this...

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A Simple Day Light Sensor Circuit using cheap components like LDR and UM66 IC

This circuit will help you to make a Light Sensitive Morning Alarm circuit using limited components. The morning light or other light is sensed by an LDR (Light Dependent Resistor) or Photoresistor and it triggers the alarming section. The circuit generates a melodious alarming tone when light falls on it.  Wire-up the circuit as shown in...

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Cheapest High power LED driver circuit schematic

There are many other articles on internet with simpler circuits but none of them are cost effective or as cheap as this one. Using some easy to get cheap components you can make a much better LED driver than you would have thought of....

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Simple and Cheap 100W Inverter Circuit

Inverter is a small circuit which will convert the direct current (DC) to alternating current (AC). The power of a battery is converted in to’ main voltages’ or AC power. This power can be used for electronic appliances like television, mobile phones, computer etc. the main function of the inverter is to convert DC to AC and step-up transformer...

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Lead Acid Battery Charger Circuit

To successfully charge a battery, it should be supplied with DC current and not AC. This circuit shows how you can use DC voltage to regulate and finally charge the battery. Now if you have AC voltage, you can convert it using a rectifier bridge and pass it through filter to obtain DC voltage which can then be used in this circuit to charge the Lead...

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Bipolar LED Driver Circuit

A Bi color LED is a special type of LED consists of two diodes connected in inverse direction to each other inside a package. A bi color LED generally consists of three terminals- a common pin and two separate pins. ...

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Simple audio amplifier using LM386.

The LM386 is an audio amplifier designed for use in low voltage consumer applications. The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between pins 1 and 8 will increase the gain to any value from 20 to 200...

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Arduino: an Introduction

Arduino is an open-source platform used for building electronics projects. Arduino consists of both a physical programmable circuit board (often referred to as a microcontroller) and a piece of software, or IDE (Integrated Development Environment) that runs on your computer, used to write and upload computer code to the physical board...

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A simple fix for mouse click issues.

After a month of non-use, you might notice that your mouse clicks are not working as they used to. Many times because of lack of use of right clicks buttons, the buttons stops working. This can be fixed easily...

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