Control Variable DC Power Supply With LM317

This DC power supply circuit is adjustable using IC Voltage Regulator LM317. LM317 is a versatile and highly efficient 1.2-37V voltage regulatorthat can provide up to 1.5A of current with a large heat sink. It'sideal for just about any application. This was my first workbench powersupply and I still use it.Since LM317 is protectedagainst...

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Control 6A, 5 Volt Power Supply

The standard variable voltage regulator type LM150 is fairly easily available, but at times its out, which is limited to about 3 amperes, may prove to e a limiting factor to its utility, nut the simple modification describe here allows the to be enhanced to about 6 amperes. The circuit has inbuilt safe area protection and thermal overload...

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Control 32W HiFi Amplifier circuit based on TDA2050

This is a High Fidelify (Hi-Fi) amplifier circuit based on single IC TDA205. This is a mono channel audio amplifier. You need to build the same circuit for stereo channel. TDA2050 Description:The TDA 2050 is a monolithic integrated circuitin Pentawatt package, intended for use as an audio class AB audioamplifier. Thanks to its high power...

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Control High Current Regulated Supply

The high current regulator below uses an additional winding or a separate transformer to supply power for the LM317 regulator so that the pass transistors can operate closer to saturation and improve efficiency. For good efficiency the voltage at the collectors of the two parallel 2N3055 pass transistors should be close to the output voltage....

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Control TDA7295, 80W Audio Amplifier

Below is a 80W amplifier circuit is constructed by using a power ICTDA7295. With a very simple design, makes this circuit very easy tobuild. TDA7295 has many features to support your audio system, the most important is that the IC has very low distortion and very low noise feature.The TDA7295 is a monolithic integrated circuit in Multiwatt15package,...

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Control 10W Audio Amplifier circuit based on TDA1910

Simple and cheap, that's the advantage of this circuit. Although the output power is not high but audio quality is good, because TDA1910 has a very low noise feature. This circuit suitable for use as a student project.About TDA1910:The TDA1910 is a monolithic integrated circuit in MULTIWATT® package, intended for use in Hi-Fi audio power...

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Control Digital Remote Thermometer Circuit With Receiver and Transmitter

Remote sensor sends data via mains supply, Temperature range: 00.0 to 99.9 °CThis circuit is intended for precision centigrade temperature measurement, with a transmitter section converting to frequency the sensor's output voltage, which is proportional to the measured temperature. The output frequency bursts are conveyed into the mains...

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Control Line follower with atmega 16

Here the complete electrical circuit diagram of line follower robot which built based on ATmega16. There are three modules of line follower robot circuit that are sensor module, microcontroller module and DC motor module.IR sensor schematic diagram:Mainboard (microcontroller + DC motor driver schematic diagra...

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Control Power LED Flasher

The low cost and extremely compact circuit given here is that of a highly power saving flashing LED indicator.Whereas most LEDs fail to work below 2 volt, their forward voltage alone being 1,6 volts minimum, this flasher can work off one single cell.The LM3909 contains virtually all the essential trigger and pulsing circuitry which controls...

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Control NiCad Batteries Charger

This battery charger circuit is designed for recharging Ni Cad batteries based on an AC-powered current source method. It can crank out as much as 1 amp and can be modified to go even higher by choosing different devices for Q1. Since this circuit uses AC line voltages and currents, please exercise extreme caution during assembly,...

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Control Perkembangan semikonduktor

Semikondutor adalah bahan yang paling banyak digunakan pada peralatan elektronika sekarang ini.Sifatnya yang khusus membuat semikonduktor sangat khas dalam tingkat atom. Semikonduktro adalah bahan yang mempunyai sifat antara konduktor dan isolasi. Pada saat tertentu semikondukto bisa menjadi isolasi maupun konduktor hal ini biasanya diakibatkan...

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Control Dasar Digital dan Mikroprosesor (UNIT ARITMATIKA & FLIP-FLOP)

Gambar  ini adalah gambar awal mulanya  Mikroprosesor dibuat namanya adalah SAP1( Simple As Possible ) Tujuannya adalah untuk menunjukan gagasan penting operasi komputer Pencacah Program PC mencacah dari 0000 sampai 1111 dengan hexsadesimal 0 sampai F.RegisterAlamat Memori (MAR)MAR menerima alamat  biner dari pencacah programAkumulatoryakni...

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Control TEA6320 Multichannel Audio Selector and Volume Control Circuit

This is a design circuit for high-end audio equipments are normally digitally controlled by a microprocessor (microcontroller) system. It’s necessary to have  digital interface that provide control for audio signal switching, as well as programming the gain to control the signal volume. This is the figure of the circuit; TEA6320...

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Control Line Follower ROBOT Controlled by 2051

This Robot use two motors control  rear wheels and the single front wheel is free. It has 4-infrared sensors on the bottom for detect black tracking tape, when the sensors detected black color, output of  comparator, LM324 is low logic and the other the output is high.Microcontrollor AT89C2051 and H-Bridge driver L293D were used ...

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Control AC to DC 90 Watt Switching Power Adaptor

AC to DC switching power adaptor circuit with maximum output power of 90W. Switching power supply is built using a high voltage power switching regulator IC MC33374 and some other additional components. The MC33374 IC is a monolithic high voltage power switching regulators that are specially designed to operate directly from a rectified AC...

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Control Basic Phototransistor Detector

This is a Phototransistor Detector circuit. In this circuit, when the light falling on the phototransistor (Q1) is blocked, its conductance will decrease and the voltage across Q1 will rise. When the voltage rises above 1/2 of the supply voltage the output of the comparator will turn ON and the LED will be lit.The only critical part of this...

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Control Mobile Phone Charger Circuit For Traveling

Here is an ideal Mobile charger using 1.5 volt pen cells to charge mobile phone while traveling. It can replenish cell phone battery three or four times in places where AC power is not available. Most of the Mobile phone batteries are rated at 3.6 V/500 mA. A single pen torch cell can provide 1.5 volts and 1.5 Amps current. So if four...

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Control Printing Compact for Windows Mobile

Today, in turn for the net, I have found a notice interesting. Polaroid, in collaboration with Zink Imaging has intention to release to short (the precise date still has not been specified) a new printing for photo super capacities them. The new “Digital Mobile Instant Photo Printer” will be equipped of Bluetooth logo's, in order to allow...

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Control Windows seven WP7 Tips and Tricks - To associate a Bluetooth device

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Control Digital Remote Thermometer Circuit With Receiver and Transmitter

Remote sensor sends data via mains supply, Temperature range: 00.0 to 99.9 °CThis circuit is intended for precision centigrade temperature measurement, with a transmitter section converting to frequency the sensor's output voltage, which is proportional to the measured temperature. The output frequency bursts are conveyed into the mains...

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Control Mobile Phone Charger Circuit For Traveling

Here is an ideal Mobile charger using 1.5 volt pen cells to charge mobile phone while traveling. It can replenish cell phone battery three or four times in places where AC power is not available. Most of the Mobile phone batteries are rated at 3.6 V/500 mA. A single pen torch cell can provide 1.5 volts and 1.5 Amps current. So if four...

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Control Motorola CommandOne, an earpiece bluetooth in order to write the SMS

To write SMS while guide is it self most dangerous. In some Countries he is also illegal and in passed they have been also of the serious incidents much for distractions of this type. The keyboards touchscreen, much fashionable ones in the smartphone more recent, than certainly of it do not facilitate the writing. Therefore Motorola it has...

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Control Simple Car Theft Deterrent

The purpose of this simple circuit is to deter potential car burglars by flashing a few LEDs on a seemingly very sophisticated control panel,implying that the vehicle is equipped with a sophisticated hi-tech alarm system. This simple deterrent is unique in the sense that it is based on just one single uni junction (UJT) and is connected to...

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Control Headlights On Indicator

Most drivers would have experienced the frustrations at some time or another of parking their car for the day and coming back in the evening only to find that they have accidentally left the head lights on. The result,with the modem small car batteries, quite often is that they have discharged the battery too much to start the engine. And...

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Control The Pocket Receiver

Not that there is any paucity of pocket receivers or that they are too expensive,or that there are hardly any well known circuit that we decided to design' another one'. It's not just another one.The True Pocket Receiver No doubt, dozens of models are commercially available but they aren't truly pocket sized (rather pocket oversized...

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Control 3A Universal Power Supply

This universal power supply is universal in the true sense. With a output continually variable from 1.25 volts to 25 volts, this power supply is left with hardly any needs that it can't fulfill.The power supply is short circuit protected and  has in-built thermal overload protection.As shown in figure, the power supply uses an LM350...

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Control DC motor control a AVR ATmega8

DC motor control using the PWM counters of AVR ATmega8 microcontroller. I had used a DC motor from an old personal stereo cassette player. The circuit provides speed and direction control of the motor. The PWM waveforms are used for driving the MOSFET H-bridge as shown in the schematic:At a time only one of the two PWM channel is active,...

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Control Iran Introduces Walking Humanoid Soorena Robot

Iranian President Mahmoud Ahmadinejad unveiled a new Asimo-likerobot, which they intend to use in “sensitive jobs,” according togovernment newspapers. The report did not elaborate what the robot cando apart from dragging its feet across the floor.Soorena-2, which was named after an ancient Persian warrior,measures 1.45 meters (4 feet 9 inches)...

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Control BlackBerry VM-605 Specification

The BlackBerry VM-605 features a loud speaker for clear calls. Built-in FM transmission allows drivers to make use of their vehicle’s stereo for calls and music. The most interesting features in the VM-605 is that it was designed to work with GPS applications like TeleNav that announce your directions over the speakerphone. BlackBerry has included a button lock function. Holding the FM, Volume Up, and Front Panel buttons for four...

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Control RAM and ROM memories in Micoprosesor

Computer memory devices come in two basic types,RAM and ROM. these words are not as helpful as they could be.RAM standers for 'random access memory, a term which can in fact be applied to both types.ROM is 'read only memory'  which means that the computer system can obtain information stored in the memory('read' it) but can't store anything new in it('write' to it').RAM stores can boat be read from and written to,but both...

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Control The silicon chips

Most people will have heard of the " silicon chips".There are many such  devices,but the words are usually taken to mean a microprocessor.The heart of any computer is something called a central processing unit (CPU),the microprocessor (MPU) is simply a CPU which has been considerably reduced in size using modern integrated circuit technology....

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Control Atmel 89S and AVR Programmer(STK200)

A kit for this activity is accessible from RSH Electronics.Download PDF adaptation of this folioThe ambit starts timing back switched on. The blooming LED lights to appearance that timing is in progress. Back the time aeon is over the blooming LED turns off, the red LED turns on and the bleeper sounds.Adjustable 1-10 Minute Timer ProjectThe...

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Control Schematic amplifier for head phone op-50

 Schematic amplifierPerformance of the circuit: (Vout = 6Vrms, R1=4k©)T.H.D @ 100HZ = 0.0025%@ 1KHZ = 0.003%@ 10KHZ = 0.011%Relationship sign noise p5; 80dB answer = ±0.4dB from 10Hz to 20KhzBand with = -3dB @ 56...

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Control Liquid PCB different from other PCB programs

Liquid PCB was designed from the point of view of the user. I think that the computer should take as much work from the user as possible, while still giving them the freedom to produce an excellent design. It should be possible to navigate the interface using as few mouse clicks as possible.Liquid PCB actually uses the immense power of your...

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Control Schematic Long Range FM transmitter Circuit

The power output of most of these circuits are very low because no power amplifier stages were incorporated.The transmitter circuit described here has an extra RF power amplifier stage, after the oscillator stage, to raise the power output to 200-250 milliwatts. With a good matching 50-ohm ground plane antenna or multi-element Yagi antenna,...

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Control Birth of an Industry Microcontroller

Significant technological breakthroughs usually result from seeking a solution to a problem and they add to a body of existing knowledge. The development of solid-state electronic followed this pattern building on the limitations of early computers and leading to this development of the transistors in 1947.One problem occurred prior to the...

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Control Communication using RS232 serial line

One of the most powerful communication to be implemented in a digital system is communication using RS232 serial line.Microcontroller 89s51 have facilitie a UART, so that it can perform serial communication with RS2322-level inter-equipment or with the computer. IC MAX232 is enabled to change the format of TTL to RS232.Interface MAX 232Scenatic...

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Control DIGITAL COMPASS DESCRIPTION

Basic Description The digital compass gives measurements based on Earth's magnetic field for robot navigation. Inside this commonly available MEMS are tiny nano-structures that bend due to electromagnetic fields. When this MEMS experiences any form of EM field, the tiny structures bend by an amount which can be electrically detected. Cheaper...

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