Automatic night light

admin March 8, 2011 66 Comments
Automatic night light circuit Description. A cheap and simple automatic night light using few transistors and NE555 timer is shown here. The circuit will automatically switch on the AC lamp when night falls and the lamp will be automatically...
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6 to 15V DC to DC converter

admin February 23, 2011 19 Comments
6 to 15V DC to DC converter using LM2585 Description. A very efficient 6V to 15V DC to DC converter using LM2585 is shown here. LM2585 is a monolithic integrated voltage converter IC that can be used in various applications...
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Stereo FM transmitter using BA1404

admin February 17, 2011 33 Comments
Stereo FM transmitter circuit using BA1404. Notes. A high quality stereo FM transmitter circuit is shown here. The circuit is based on the IC BA1404 from ROHM Semiconductors. BA1404 is a monolithic FM stereo modulator that has built in...
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12V to 120V DC DC converter

admin February 17, 2011 11 Comments
Description. A simple 12V to 120V DC DC converter circuit is shown here. The circuit consists of two stages firstly a basic inverter stage and then a rectifier plus filter stage. IC1 NE555 is wired as an astable multivibrator...
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5V boost converter

admin February 17, 2011 4 Comments
5V Boost Converter circuit . Description. A simple 5V boost converter using LTC3440 is shown here. LTC3440 is a highly efficient DC to DC converter that can be operated from input voltages below, above or equal to the output...
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USART Modules in PIC 16F877

john February 14, 2011 1 Comment
PIC 16F877 – USART Modules This article explains the different USART modules used in PIC 16F877 like Asynchronous (full-duplex), Synchronous – Master (half-duplex), and Synchronous – Slave (half-duplex). The USART Baud Rate Generator (BRG) is also explained in detail...
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Buck boost converter circuit

admin February 10, 2011 9 Comments
Buck Boost converter circuit using LTC3440 Description. A very efficient buck boost converter circuit is shown here. The circuit is based on the LTC3440 buck boost regulator IC from Linear Technology. The LTC3440 requires only one inductor and provides...
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DC motor controller

admin January 22, 2014 33 Comments
DC motor control circuit using NE555 Are you familiar with all the applications of 555 timer circuits? If not, we can help you. We all know that for better understanding, the best source is an authenticated book on the...
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Car stereo amplifier circuit using TDA2040

admin February 10, 2011 22 Comments
Car Audio Amplifier Circuit: Given below is a car stereo amplifier circuit using  audio amplifier IC – TDA2040 Description of the circuit: A car stereo amplifier circuit using TDA2040 is shown here. TDA2040 is a monolithic integrated audio amplifier...
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Audio amplifier circuit using TDA2040

admin February 10, 2011 28 Comments
30 Watts Audio amplifier Circuit Description. A 30 watt audio amplifier circuit using TDA2040 is shown here. TDA2040 is a Class AB monolithic integrated audio amplifier available in Pentawatt package. The IC has low harmonic distortion, low cross over...
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Step up voltage converter

admin February 11, 2011 8 Comments
DC Step Up Voltage Converter Description. A simple DC to DC step up  voltage converter using LM2700 is shown here. LM2700 is a step up switching converter that has a 3.6A, 80 M ohm internal switch. It can be...
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MOSFET amplifier circuit – 10 Watts

admin March 10, 2011 2 Comments
10 Watts MOSFET Amplifier Description. The diagram shown here is of a 10W MOSFET amplifier circuit that requires only a single supply. Single rail supply is seldom used in Class-B power amplifiers. Anyway, for low power applications like this...
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Car audio amplifier using TDA2003

admin February 14, 2011 18 Comments
Car Audio Amplifier Circuit Description. A simple low power car stereo amplifier circuit based on TDA 2003 is shown here. The circuit uses cheap, readily available components and it is very easy to construct. TDA2003 is an integrated car...
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Prize Received by Winner of the Contest

jojo February 14, 2011 1 Comment
Hello all Readers, You all might be still remembering our highly successful “Suggest a Topic to Publish” contest. As you all know, we have received over 217 valuable suggestions. We have published some of the suggestions already and still...
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SPHERES

john February 14, 2011 1 Comment
Before reading more about SPHERE, it is important that you know more about NASA Robots. Click on the link below to know more. TAKE A LOOK : NASA ROBOTS You may also be interested in the article below. Anthropomimetic...
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50 Watt MOSFET amplifier

admin March 10, 2011 1 Comment
A simple and easy to build 50 watt MOSFET audio amplifier circuit is shown below. The circuit uses easily available components and provides excellent sound quality .   Description: The first stage of the amplifier is a differential amplifier...
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Dextre Robots

john April 2, 2013 1 Comment
Before reading more about Dextre, it is important that you know more about NASA Robots. Click on the link below to know more. TAKE A LOOK : NASA ROBOTS You may also be interested in the article below. Anthropomimetic...
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NASA Robots

john February 14, 2011 4 Comments
You may also be interested in the article below. Anthropomimetic Machines NASA Robots NASA has innovated and designed special robots which can aid them in doing tasks in dangerous environments. The most common works that are done by these...
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Car Stereo Amplifier Circuit

admin February 14, 2011 10 Comments
Car Stereo Amplifier Circuit Given below is the circuit of a car stereo amplifier that can be used in cars or other vehicles. We have used TDA1553, which is a Class-B audio amplifier. Description : Here is the circuit...
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