Top Circuits Page 126
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Although it does not have the same charm as real mercury barometers with long glass tubes on pieces of carved and polished wood, the Torricelli barometer discussed here is a functional equivalent and electronic replica of the Torricelli barometer. Actually,....
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This circuit will be particularly useful to those hobbyists who use a breadboard` to try out ideas and who also use a simple home-made` DC power supply consisting of a transformer, rectifier, smoothing capacitor and protective fuse, that is, one without over....
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When the voltage on the non-inverting input of each comparator exceeds the voltage at its inverting input, the output switches high and illuminates the relevant LED. NOR gate latches are connected to the outputs of the third and fourth comparators. When the....
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The pulser is intended to switch the mains voltage on and off at intervals between just under a second and up to 10 minutes. This is useful, for instance, when a mains-operated equipment is to be tested for long periods, or for periodic switching of....
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The video amplifier in the diagram is a well-known design. Simple, yet very useful, were it not for the ease with which the transistors can be damaged if the potentiometers (black level and signal amplitude) are in their extreme position. Fortunately, this....
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This circuit has been designed to provide a clearly visible light, formed by 13 high efficiency flashing LEDs arranged in a pseudo-rotating order. Due to low voltage, low drain battery operation and small size, the device is suitable for mounting on bicycles....
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All components arranged as in the picture sequence below. Current will flow starting from the sourcevoltage and to the switch. When the switch is closed current will flow through the diode, wherediode serves as a switch is closed because it was given forward....
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Using ceramic tuning 3. 587 mhz resonator and resonator filters are also sold with a value of 5. 5mhz, 7. 7 mhz and 10. 7 mhz. Distance transmitter range is approximately 2-4km. the working principle of this circuit are filter resonator/ceramic filtersraise....
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Using a LM1458 dual op amp IC. The circuit takes the audio signal rom the condenser microphone and amplifier it, so you can use the microphone as the input to some device which wouldn`t normally accept microphone level signals. The circuit requires a 6-9....
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This circuit is a general-purpose 10-W audio amplifier for moderate-power PA or modulator use in an AM transmitter. With higher voltages and a change in bias resistors, up to 30 W can be obtained. The Output Stage Amplifier using transistor 2N3055 and MJE2055...
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This circuit yearn for act the performance of the equipment, otherwise Check the fuse here the circuit. The circuit is diminutive and the power supply voltage of all kinds. It demonstrate with LED, 2-color in individual. Which is cathode universal kind, the....
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This circuit LED reproduces the first LED sequence at this time used by FISA on behalf of Formula single racing. It may perhaps be alive used with slot car sets (such for example HO shin up AFX/Life Like/Tyco sets) or else means of communication controlled....
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It`s state is constantly changing and this change affect the flow of current and voltage and the effect will be visible with the two leds. The speed of the led flasher may be adjusted with potentiometer P1. Being an astable multivibrator, the circuit has no....
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6V to 12V DC converter circuits that can be used to convert a small voltage of about 6 volts to a higher voltage of 12 volts but ofcourse with a lower current rating. This inverter circuit can provide up to 800mA of 12V power from a 6V supply. For example,....
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The key board here we are interfacing is a matrix keyboard. This key board is designed with a particular rows and columns. These rows and columns are connected to the microcontroller through its ports of the micro controller 8051. We normally use 8*8 matrix....
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A 8051 microcontroller based electronics project. This demo project explains how to make a car parking system automated. Here, there is a multi floor parking system, and a lift will take your car to the appropriate parking area depending on the cars that are....
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Controlling devices using switches are common. From a few decades controlling devices using remote control switches like infrared remote control switch, wireless remote control switches, light activated switches are becoming popular. But these technologies....
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Tutorial on Interfacing the 20x4 LCD module to PC parallel port...
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This is Circuit Diagram 0.1 Alpha Software, all free to download and also available open source....
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This Homemade GSM Car Security System super simple circuit design of a GSM car security system really works....
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The program uses the internal 4MHz oscillator PIC16F628 2 Input Alarm Circuit....
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The Audio Research Corporation LS22 Line Stage Preamplifier was chosen for this upgrade....
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This Bells Ring Generator using MC14106 or 40106 Hex Schmitt Inverter IC generates a dual-tone bells ringing similar to most door-bell units....
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This is DoorBell Bird Voice Electro Suite, to replace the old doorbell, to give the freshness in using the excitement new doorbell....
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Mark Harrington 3 in 1 Door Bell. The circuit comprises the power supply which is formed by TR1, Q3 , D13 , Q1 , D9....
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Mark Harrington Audio Tracer. The audio input is fed into the first stage op amp via C6 , RV1 , C4, R4....
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3904 3906 Siren Circuit. The circuit produces a wailing siren sound when the switch is turned on....
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Boss MT2 Metal Zone Distortion Pedal Schematic. The MT-2 Metal pedal is one the most popular guitar pedals, providing over-the-top, insane distortion tones with huge mids and lows and an ultra-saturated sound....
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Dunlop Cry Baby Wah Wah Schematic Still its hard to be the Cry Baby sound for what it is....
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This is Fire Alarm using IC TD2002 suite, to identify if there is a fire. This alarm is very important in crowd residential complex, so that we can know earlier. This alarm works if there is a fog that generated by the fire cross the lamp and LDR sensor, so....
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Atmega 8535 Color Conversion to Frequency, the technology of instrumentation that can recognize of colors or also known as color sensor, is very urgently needed in the field of industry. This sensor has a lot of its usefulness as for the paint industry until....
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The clock is based around a the PIC16F877 microcontroller from Microchip Technology Inc, which performs all of the logic necessary to decode the MSF signal and show the time on twelve 7-segment displays...
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The 60 Hz Frequency Generator circuit is very urgently needed to make the inverter or hardware related to the AC current voltage. This 60 Hz Frequency Generator is very simple and has a high accuration, the squarewave as the output which is precision. The....
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This is NIMH Battery Charger using IC LTC4060 Electro Suite, a NIMH battery charger which is powerful, effective and efficient. Features of the IC LTC4060 is a specialization of a NIMH battery charger. NIMH Battery Charger with IC LTC4060 can perform safely....
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LM358 consist of two independent, high gain operational amplifier in one package. Important feature of this IC is we do not require independent power supply for working of each comparator for wide range of power supply. LM358 can be used as transducer....
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This is Overheat Detector Alarm Switch using Temperature Sensor IC LM35 Electronic Suite Diagram, at the heart of this overhead detector (fire alarm) circuit is a precision integrated temperature sensor type LM35 (IC1), which provides an accurately linear....
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The primary goal for this project is to utilize the 555 timers to detect a motion in the nearby environment. The output of this circuit will light LED and make an audible sound like an alarm...
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AC Motor Speed Controller was designed to control the speed of AC motors with carbon brushes anything from drills to saws to vacuum cleaner....
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RS232 to RS485 Converter Circuit Schematic. RS232 to RS485 converters are mostly used in industrial and commercial environments....
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Solar Cells Light-Sound Converter. This is experimental circuit that converts light into sound....
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2SC1815 Flip Flop LED Flasher Suite A very simple and very easy to understand....
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This is Illumination Intensity Measurement System Diagram. The data in the microprocessor is always in digital form. This is Illumination Intensity Measurement System Diagram - Part 1. The data in the microprocessor is always in digital form....
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Music Driven Motor Schematic. The geared motor drive the stem of a dancing flower to beat of music....
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6V to 220V Inverter Schematic. Starting from 6-Volt input on the DC current into 220-volt AC output....
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AT89C2051 Digital Visitor Counter. The microcontroller do the above job it receives the signals from the sensors....
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Oscilloscope Xminilab-B on the microcontroller Atmel AVR ATXMEGA32A4 electro suite in rlocman The Gabotronis company produces debug board Oscilloscope Xminilab-B on the microcontroller Atmel AVR ATXMEGA32A4 electro suite. As we found in rlocman.ru, The....
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Solar Cell Charger Schematic. The circuit was built with a single oscillator system (blocking oscillator)....
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This Wideband DTV UHF Antenna TV Amplifier has a total gain of 10 to 15 dB in the 400 850 MHz domain frequency....
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PIC controlled 500W `Modified Sine Wave` Inverter. The PIC16F628A is programmed to produce a logic 5v signal for 5ms at pin 17 then 15ms off....
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4 Channel 433MHz Wireless RF Remote Control Kit 200m. RF remote control provides long range of up to 200m / 650ft and can find many uses for controlling different devices....
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A8V W8EXI 6CL6 One Tube Transmitter. The operation of the 6CL6 transmitter is actually quite sophisticated....
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Designing Audio amplifier from the scratch using discrete componentsis interesting, as it allow users to design amplifiers that can satisfy their various requirements. With audio amplifiers, low level sounds from mobile devices around us can be made more....
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All the naturally occurring phenomena like sound, temperature and pressure etc, are analog in nature. Therefore to make an micro-controller read analog signal for analog-to-digital conversion process, through built-in analog-to-digital converter (ADC), it is....
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a regulated and noise free power supply voltage for the microcntroller and other components like amplifiers, filters and GPS etc. , otherwise a voltage surge generated in the voltage being fed to the microcontroller and other components may permanently....
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This website was created to help students find idea for their project/FYP. All the content presented here are found from me, reliable blogs, website and forums. The owner of this website takes no responsibility what so ever for any of the content. If you....
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This is a circuit of a microcontroller AT89S52 Thermometer and 12-bit ADC LTC1298, programs written in the language c program with digital filtering and interface the LED display. The reading provides 0. 1C sensitivity. The hardware block and circuit diagram....
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This circuit allows you to equlize the audio signals in 10 band. It uses low amount op-amps (TL074 - JFET op-amp) to anatomy a able blaster circuit. The affection of the architecture is a classical band-pass alive filter. The VCC is in ambit of 12 ~ 15 VDC....
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This disco lamp circuit is not a voice operated switch (VOX) because this circuit is too dumb to differentiate between musical sound or human voice. This is rather a sound activated than voice activated. One interesting application is to control your disco....
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This is a simple preamplifier circuit for electret condenser microphone. using a LM1458 dual op amp IC. The circuit takes the audio signal rom the condenser microphone and amplifier it, so you can use the microphone as the input to some device which wouldn`t....
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This is a simple 12VDC to 220AC inverter circuit that can be used produces an AC output at line frequency and 220AC or different voltage by selecting transformer T1. The 555 IC is configured as a low-frequency oscillator, tunable over the frequency range of....
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The latest circuit diagram of the AD2496 is shown here. All modifacations I intended and described in the article about the prototype have been implemented. Additionally I introduced two current compensated chokes for higher EMV immunity. Not that I....
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This Project Automatic Room Light Controller with Visitor Counter using Microcontroller is a reliable circuit that takes over the task of controlling the room lights as well us counting number of persons/ visitors in the room very accurately. When somebody....
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The circuit given here is of a very useful and accurate digital voltmeter with LED display using the ICL7107 from Intersil. The ICL7107 is a high performance, low power, 3. 5 digit analog to digital converter. The IC includes internal circuitry for seven....
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The Part of 1996 Ford Windstar Wiring Diagram: power distribution, common, rear, ignition, fuse panel, battery, instrument illumination, radio, left rear speaker, remote headphone module, solid state, right rear..
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This is a design circuit for audio graphic equalizers, that are very common as commercial products but circuits for them are very rarely published. This circuit is a simple design circuit. The circuit is need an op-amp for amplifying the input signal. This....
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This is a design schematic to sensor the electromagnetic field. This circuit is based or built by 741 IC. This IC is an op-amp. The circuit can detect the field even hidden wrings. This is the figure of the schematic. A 1mH inductor is used for sensing the....
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This intelligent electronic lock circuit is built using transistors only. To open this electronic lock, one has to press tactile switches S1 through S4 sequentially. For deception you may annotate these switches with different numbers on the control....
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Here is the variable high voltage dc power supply circuit, which we can customize the output voltage from 0 to 311Vdc, and it is protected the current over limit that we define at about 100 mA. The power MOSFET Q1 is controlled the current output, with using....
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This is flashing lamp circuit. This circuit operate with 6V power supply. You can fix this circuit for your bick or for your car. Here I have used common transsistor 2N3904...
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This is the built servo amplifier and circuit diagram. This is a simple and ordinary op-amp circuit, there is nothing difficult. However it has power amplifier and small signal amplifier on the board together. You have to pay attention to unintentional....
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