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 switched off after a preset time. The working of this night light circuit very simple. An […]
When you look at the image below, you may think it is just a fuzzy ball of wool that is spun together. But, amazingly it is the best 3-D Simulation model of the Human Immunodeficiency Virus [HIV] which displays even the tiniest proteins from the HIV virus and the host it infects. This model has
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 like flyback converters, boost converters, forward converters, multiple output converters etc. The circuit requires minimum number
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 stereo modulator, FM modulator, RF amplifier circuitries. The FM modulator can be operated from 76 to
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 operating at a frequency of 100Hz and it can be adjusted using the preset R1. Output
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 voltage. In terms of synchronous rectification, LTC3440 provides up to 96% efficiency and up to 600mA
Our generation has seen all types of film cameras and digital cameras with which megapixel images could be taken. As a matter of fact, these images are still considered as the state of art in digital photography. But with the advancement in technology, Gigapixel images have started to show up, though in vivid detail. It
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 along with the register table. The applications of USART is also given. RELATED ARTICLES: TAKE A
We have only heard about uni-junction and bi-junction transistors. Recently, the researchers at the Tyndall National Institute, UCC have developed a transistor which is junctionless. This discovery was made by the team led by Tyndall’s Professor Jean-Pierre Colinge. The first announcement was made by publishing the news in Nature Nanotechnology. The news has been accepted
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 up to 96% efficiency. There is no need of Schottky diode for applications where output voltage
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 subject. CircuitsToday presents an online store which has reviews on 3 books that are considered to
TDA2613 Hi Fi audio amplifier Description. A 6 watt audio amplifier circuit using TDA2613 is shown here. TDA2613 is an integrated Hi-Fi audio amplifier IC from Philips Semiconductors. The IC is switch ON / switch OFF click proof, short circuit proof, thermally protected and is available in 9 pin single in line plastic package. In
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 that operates in Class AB mode. The IC has built in circuitry for short circuit protection
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 distortion and has a built in circuitry for short circuit protection. In the circuit two TDA2040
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 operated at 600 kHz or 1.25MHz switching frequency. In the circuit LM2700 is wired in order
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 it’s quite fine. Actually I got this circuit from an old cassette player that is still
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 radio amplifier from ST Micro electronics that has a lot of good features like short circuit
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 working on others. You are still welcome to suggest new topic ideas,eventhough the contest is over.
SPHERES stands for Synchronized Position Hold, Engage, Reorient Experimental Satellites. This type of NASA Robot mainly consists of 3 miniaturized satellites that can work in extreme climates and environments. These satellites have 8-inch diameters and were originally used in the International Space Station (ISS). The SPHERE was developed by the Massachusetts Institute of Technology (MIT)
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 based on transistors Q1 and Q2. Capacitor C8 is the input DC decoupler, R1 limits input
Voltage Converter Circuit – 6 to 12 volts One of our valuable readers asked us about any other application of the Audio amplifier IC TDA2003. Well, it can be used to build a Voltage converter circuit. Here’s an example of 6 to 12 volts converter using the same IC Description of the Voltage converter circuit:
Dextre Robot IMAGE FROM Dextre is also called the Special Purpose Dexterous Manipulator [SPDM]. It is a NASA robot and was basically designed as a two-armed robot. It was assigned as a telemanipulator in the Mobile Servicing System on the International Space Station [ISS]. The robot was also used for other space oriented jobs. The
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 robots are the repair of radiation exposed machines, capturing videos in outer space, getting into minute places inside the space craft where astronauts cannot enter and so
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 of a car stereo amplifier based on TDA1553. TDA1553 is a monolithic Class-B audio amplifier which
Working of SWR Meters This article focuses on the concept of Standing Wave Ratio, its measurement using SWR meters, directional swr meter, Voltage Standing wave ratio (vswr), Swr bridge circuit, applications and problems with an SWR meter. SWR Meter IMAGE SOURCE SWR meters are used to measure and denote the standing wave ratio in a
