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Wind 6 turns of solid wire on a pen or pencil that is just under 1/2 inch in diameter. Remove the wire from the pencil and spread the winding to make a length of 3/4 inch. Solder C2 somewhere near the middle of the coil...
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Wireless Imaging Intruder Alarm app enables Home Security Smartphones to detect and send burglar pictures direct to your personal cell phone, PDA or computer within a few seconds of a break-in at your home or business when you are away. Code Alarm Security....
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A simple thermostat circuit that can be used to control a relay and supply power to a small space heater through the relay contacts. The relay contacts should be rated above the current requirements for the heater. Temperature changes are detected by a (1.....
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I know the general rule of world that reading makes man ready, writing makes man everyday but practice makes man perfect. Only theoretical knowledge is not enough for an E. C (Electronics and communication engineering)student. A project is one of the....
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Here is the circuit diagram of a fully transistorized inverter that can drive up to 60W loads. Transistors Q1 and Q2 forms a 50Hz astable multivibrator. The output from the collector of Q2 is connected to the input of the Darlington pair formed by Q3 and Q4.....
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Colpitts oscillator circuit is shown in Figure 1, Q is the transistor. The Colpitts and Hartley oscillator circuit are similar, except the inductor, capacitor exchange of positions. Oscillator equivalent circuit shown in Figure 2. Capacitors C1, C2, and....
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A novel method of hydrogen generation by water electrolysis using an ultra-short-pulse power supply Authors: NAOHIRO SHIMIZU, SOUZABURO HOTTA, TAKAYUKI SEKIYA and OSAMU ODA Abstract A novel method of hydrogen generation by water electrolysis using....
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The current source in the diagram, which react very fast to changes in the input signal, may be used, for instance, in certain measurements. Differential amplifier IC1 ensures that the potential across R2 is equal to the input voltage: Iout =Uin/R2. The....
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This circuit uses invisible infrared light to detect the movement of people through the door. A short beep will be generated when the infrared beam breaks ..
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This simple circuit can monitor the charging process in 12 Volt Lead Acid battery or Tubular battery. The status of LED indicates whether the battery is accepting charge or not. It also indicates the full charge condition. The circuit can be incorporated in....
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The hydraulic system includes pump No. 8 (Drawing 10) installed on the gearbox, dispenser (1), oil tank (4), hydraulic jack (5) and oil conduits. From the tank oil moves along conduit (9), sucked in the pump (8) and gets into dispenser (1) via conduit (7).....
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LM4610 Dual Dc Operated Tone/volume/balance Circuit With National 3-d Sound - National SemiconductorThe LM4844 is an integrated Audio sub-system designed for stereo cell phone applications. Operating on a 3. 3V supply, it combines a stereo speaker Amplifier delivering 495mW per channel into an 8& load and a stereo OCL Headphone Amplifier delivering 33mW....
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MiniVol is my effort at a very simple volume control board based on the excellent TI PGA2320 volume control IC, which offers impressive specs and can operate over a range of -95. 5dB to +31. 5dB. It utilises a small Atmel AVR microcontroller to control the....
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This is a The Directly (DC) Coupled Amplifier circuit. This circuit is built from NPN transistor and PNP transistor. This circuit is used to amplify a DC....
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The above is a stereo amplifier circuit based on IC STK4191 with 2 X 50Watt output power 8 ohm impedance. And besides that you can use some of the IC can also be applied in this series include the STK4101, 4111, 4121, 5131, 4141, 4151, 5161, 4171, 4181, and....
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Controlling heaters rated as high as 1500 watt requires stringent specifications with the controlling unit for safe and effective implementation of the intended operations. With the advent of advanced snubber-less Triacs and Diacs makingheatercontrollers at....
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Im pursuing a homemade photography LED array. Ideally, the LED array will be 6 series 5 parallel. (24 volts @ 1000mA per row). Each LED row is a different wavelength, together they make up the whole spectrum. Each LED row I want to have adjustable so you can....
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This simple water detector circuit uses alternative voltage in order to prevent the corrosion of the electrodes. It is easy to build and uses N1 as a trigger Schmitt gate which generate the AC. If between the electrodes is a electricity conductor, for....
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The tracker is easy to build on a perfboard. I used a basic one-pad-per-hole perfboard and 26-gauge wire, but 30-gauge would probably be better. All the electronic parts are available from Mouser Electronics. Radio Shack sells the perfboard and the 2. 5mm....
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I made an hbridge using TPS2836 and CSD16404. The schematic is shown below. It does not work properly and I have a few questions about it. It would be great if you can point out where the design is wrong. 1. I gave a VDD-GND of 5V and tried to give the....
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ZSSC1856 of ZMDI Company is the double-channel ADC of integrating embedded MCU, made up of two chips, PQFN32 5x5mm capsulates. Basic chip SBC of the system Having included the high tension circuit, LIN transceiver and including the peripheral hardware, 18....
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The PTB78560x is a series of 30 W rated isolated DC/DC converters, designed to operate from a standard 24 V or 48 V telecom central office (CO) supply. Housed in a 12 package, each model has a wide-adjust output voltage that CAN be set to one of the common....
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The DDC lines on HDMI connector side are 47KOhms 5V PU and 2KOhms 3. 3V PU on FPGA side. Our schematic look like this one: This glitch is part of the normal operation of the DDC buffer in the AD8195. The glitch only occurs on the rising edge of the....
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The AmpLoadPull project illustrates the use of the AmpLoadPull and LoadPullSetup components in ADS. These components are part of the ADS behavioral model suite found under the System - Data Models palette. "circuit_level_amplifier_1_tone. dsn" is a schematic....
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The circuitis a simple one transistor amplifier with amplification of about 30-40 dB (depends on transitor, temperature and voltage). The dynamic mic input is just a simple one transistor amplifier circuit with nothing special in it. LED D1 is inthe....
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A new type of NiMH battery known as HeCell has recently been developed, which is claimed to allow higher discharge rates than the conventional ones (about 12 - 16C). ..
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I would like you to generate a diagram showing all the hardware parts you will be using for your project, and how they are connected to each other. This diagram should clearly show the Arduino board as a box with lines going in and out of it, with arrows....
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A pattern generator is a very useful instrument for the correct alignment of the timing circuits of a television set. The circuit we propose you to build, is a «bar generator» that will produce horizontal and vertical stripes (bars) on the TV screen, that....