Repository-circuits
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Here is the full schematic for the driver. I chose to use a PIC16F628 as the microcontroller because it is cheap, has a internal oscillator (4 MHz) and an internal USART. NOTE: There is an error in this schematic and a pull-up resistor on RA5 (pin 4 in the.... -
Get More Information about Circuit Diagram of Mobile Jammer by visiting this link.A GSM Jammer or cell phone jammer is a device that transmit signal on the same frequency at which the GSM system operates, the jamming success when the mobile phones in the.... -
The GS1674 is a high-speed BiCMOS integrated circuit designed to equalize and restore signals received over 75ohm coaxial cable. The device is optimized for performance at 270Mb/s and 1. 485Gb/s, and features DC restoration to compensate for the DC content.... -
This two-part article describes how to use a simple voltage divider circuit with a thermistor to achieve high-accuracy temperature readings over broad measurement ranges. Part one discusses the circuit and various temperature estimation methods.... -
The report gives the reader info related to light sensor, light photoresistor, comparator, and circuit. There are lots of information regarding detection.... -
In this tutorial we can get information related to sensor amplifier, schematic, and noise. This tutorial presents discussion around sensor, output, and.... -
If you`ve ever wanted a high-voltage generator to create neat lightning effects, perform Kirlian photography experiments or play with neon lights, then this one is for you!. " We will describe a laboratory pulse generator using an auto-ignition coil and.... -
Build this exciting Jacob`s Ladder and watch electric arcs ascend the ladder and evaporate in space. It works from a clever 12, 000-volt power supply. Author Robert Iannini. " People have long been fascinated by electric arcs-and perhaps put off by them..... -
The circuit consists of little more than a few coils, a step-up power transformer, and a capacitor. Power from an AC wall receptacle is fed to transformer T1 (a small neon-sign transformer) which steps the voltage up to about 3000-volts AC. The stepped-up.... -
Most Tesla coils designed for educational and experimental purposes use line-operated, step-up transformer-in setups like that shown in Fig. 1 -to generate the high voltage needed for the coil`s primary circuit. While there`s nothing technically wrong with.... -
Tesla built the world`s most powerful radio transmitter. Around the base of a 200-foot mast, he placed an air-core transformer that measured 75 feet in diameter. The primary consisted only of only a few turns of wire; the secondary was 10 feet in diameter.... -
This Precision Power Supply is a nice addition on your workbench as primary, or in my case, a supplementary power supply. With zero to 40V and 2A with adjustable current limiting it will surely gets lots of use on your bench. On average the most amperage for.... -
All errors in circuit diagrams, documents and layout are corrected. The circuit as shown below is functional and working. Note that Q2 is sensitive and easily destroyed by wrong connection, shorts, over-voltage or too much current. What does that mean If.... -
The project started with a request from a fellow member of the Long Eaton Club, Tony Bowler. He was interested in converting one of the `Golden Oldies` to electric free-flight. He choose Vic Smeed`s "Debutante" to power with seven AE size cells and a.... -
The Metal-Oxide-Semiconductor Field-Effect Transistor, or MOSFET for short, is similar in many ways to the junction FET (JFET). Both are voltage-driven unipolar devices that depend on either electron or hole movement-but not both, as does the bipolar.... -
The bipolar junction transistor is still one of the cornerstone`s of modern solid-state electronics. Learn (or review) the basics of this important active device. The Bipolar Junction Transistor (BJT) triggered the revolution in modern solid-state.... -
An audio power amplifier can boost weak signals from a tuner, CD player, or tape deck to fill a room with sound. This article focuses on the operating principles and circuitry of low-frequency power amplifiers based on the bipolar junction transistor (BJT)..... -
This last article on bipolar junction transistors (BJT) is a potpourri of circuits. Some are practical and some are not so practical, but they can be great for experiments. With these circuits you can amplify signals, filter high and low frequencies,.... -
A few time ago I decided to create a media center box to replace my DVD player, sattelite receiver, VCR and my kid`s Play Station 2, toone device. So, I made a core 2 duo processor system that actually replaced with succeed, all my electronic devices. The.... -
I describe the procedure I followed to build the Box, the Lamp System and the Countdown System which is based on the AVR mega8 microcontroller. Four blacklight lamps, 15W each, emit radiation at the region of UVA, with a peak around 350nm where the thin.... -
The basic small-range remote controls are 2, Infrared and RF (Radio Frequency). One of the weaks of Infrared is that the signal can not pass the walls. So, if you wantto control your garage door, the only way is to use some RF remote control. The circuit.... -
On this project we will control anAVR microcontroller (MCU) via Visual Basic 6. The applications of this circuit is countless. You can make, anything you want, that needs control from a Personal Computer (PC)or from anycircuit collects data from sensors..... -
The TRW-24G connector pins is too small (~1mm pin to pin). For that I order the adaptor PCB that is convert the small connector of RF module, to standard pin connector. The pin order of RF modules in schematic diagram is based on pin order of pin adaptor,.... -
When you use microcontrollers in your designs, sometime you face a problem how to show user required data. Several LEDs, 7 segment display or LCD module can be solution. But if you must show a lot of information simultaneously, it can be difficulty. Large.... -
Programmer in my "AVR software and technical Library - April 2003" CD-rom and decide to publish it. The reason was, that this programmer is very stable and works perfect with AVR Studio 4. I hadtested it before published it, with AT90s2313 and its worked.... -
A very simple circuit forexperiments with AT90S2313, 2x16 LCD display and 4x4 keypad. The clock is based on 4 MHz crystal, but you can use any other crystalbetween 1-4 MHz. The keys with the name "A", "B". "F" are typed to the LCD with numbers 10-16. Because....
New Circuits
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
Popular Circuits
This project I made for my little daughter. It is 24 channel light illumination. The schematic is...
The circuit is composed of a relaxation oscillator formed by Q1 and an SCR flip-flop formed by Q2...
A very simple and useful antenna amplifier can be constructed using this circuit diagram. This...
This PSU has been abnormally advised in place of current-hungry ham telephone system...
An electromagnetic generator without moving parts includes a permanent magnet and a magnetic core...
Today, most telephone equipment use a DTMF receiver IC. One common DTMF receiver IC is the...
This simple circuit will produce an alarm whenever the temperature falls below zero degree. A...
This project is an instance of the UsbProg project created by Benedikt Sauter. Bene released the...
The automatic pump controller eliminates the need for any manual switching of pumps installed for...
Fixed some issues with the benito arduino programmer and upgraded it to the latest version of the...
Human approach detector circuit is composed of integrated operational amplifier, gate circuit and...
90 color TDA4866 power amplifier for the vertical deflection system, vertical deflection...