LM317T Voltage Regulator with Pass Transistor

a remade computer tower into a 30 amp dc power supply 1.5 volt to 37 volt original circuit @ htt://www.zen22142.zen.co.uk could be modified to other voltages and amp loads could be battery or mains voltage www.docstoc.com



http://www.youtube.com/watch?v=CoV1RGXyMx4&hl=en

The project is essentially done and ready for delivery to the strawbale home where it will live. The only thing to add now is a bit of + / - physical protection to avoid bumping live buss bars, a small AA charge, and a lamp. This setup will basically be used to run a few kitchen appliances like food processors, etc, in an off grid home. When the SLA's die, each one (5 total) will be replaced with (2) 6V Trojans in series, thus comprising a 1000 Amp Hour Bank. That is why everything was done beefy, to accomodate that. I will post links to the parts I used; everything was quite affordable. The setup as shown cost less than $300 incl. everything you see. the inverter is a Xantrex 3000 watt modified sine wave with max 300A input. Blue LCD DC 500A Digital LED Panel Ammeter/ amp Ampere Meter Without shunt available by ebay vendor minishop_008 for $9.99 free shipping. myworld.ebay.com DC 500A 75mV Current Shunt For Ampmeter Analog Panel AMP Meter Ammeter - matching shunt for above ammeter by minishop_008 for $9.99 free shipping. LCD Digital Blue Voltage Volt Meter Voltmeter Panel 20V - $4.99 free shipping available by vendor bestnbestonline. myworld.ebay.com Entire metering package cost was $25. 20A 12V/24V PWM Solar Street Light Panel Charge Controller Regulator Auto switch $14.99 free shipping myworld.ebay.com myworld.ebay.com



http://www.youtube.com/watch?v=8L29EP9fp1g&hl=en

It's my lucky day because my neighbor is throwing away a microwave! One man's trash is another man's treasure, and with all the parts I can harvest off this abandoned appliance, I feel like I just won the lottery! www.thekingofrandom.com Music by Kevin Macleod (Down Home Rockin) http Project inspired by: MattsAwesomeStuff www.youtube.com WARNING: Do not try this at home. This project is extremely dangerous and should not be attempted without adult supervision and adequate training. Misuse, or careless use, of tools or projects may result in severe electric shock, serious injury, death, and/or permanent damage to equipment and property. Use of this video content is at your own risk. I'm super excited about these salvaged parts, because there are a ton of dangerous projects I can use these for. Like unballasted high voltage electrical arcing, or instantly fatal traveling arcs. How about improvised spot welding, or dangerously exciting metal melting, and even makeshift AC stick welders? I feel like I made out like a bandit on this project, and these salvaged components will lay the foundation for many projects to come.



http://www.youtube.com/watch?v=TVkioe3PJz0&hl=en

This is a tutorial about making an Arduino board on a breadboard! It is useful to be able to do this as its much cheaper once you have the infrastructure to use it (cables, tools ect...) and if it breaks a replacement isn't that expensive. This video is also the first of the arduino workshop projects in which I will make fun 30 minutes arduino projects. I spent a while making this video so I hope you enjoy it. CLOSE UP PICTURES (FULL RESOLUTION) yfrog.com yfrog.com ______________________________________ ATMEGA 328 PINOUT softsolder.files.wordpress.com Parts list _______________________________________________________________________ 1 x Breadboard (If you don't already have one) www.sparkfun.com 1 x RED/BLACK hookup wire (If you don't have any) www.sparkfun.com www.sparkfun.com 1 x ATmega328 with Arduino Bootloader www.sparkfun.com 1 x Ceramic Resonator www.sparkfun.com 1 x Max 232 Chip www.sparkfun.com 1 x DB9 Solder Cup www.sparkfun.com 6 x .1uf Ceramic Capacitors www.sparkfun.com 1 x 10k pull up resistor (I recommend getting the resistor kit also from sparkfun!) www.sparkfun.com 1 x Push Button Switch www.sparkfun.com 1 x 5v Voltage Regulator www.sparkfun.com 1 x LED www.sparkfun.com 1 x LED RESISTOR (Again I would just get the resistor kit!) www.sparkfun.com 1 x RS232 CABLE www.sparkfun.com 1 x RS232 TO USB CONVERTER (OPTIONAL if you want usb, its cheaper on ebay!) www.sparkfun.com ...



http://www.youtube.com/watch?v=VY0kiJNI5oE&hl=en

Final update on my thermostat project, that I've built as a simple microcontroller project that you can learn from. jumperone.com



http://www.youtube.com/watch?v=o6e_lZlfKn0&hl=en

The EZ-B Robot Controller was designed by Canadian Roboticist DJ Sures, who is the creator of popular robots: Autonomous Wall-E, Award Winning 3-D Environment Mapping K-9 and the Autonomous Cookie Monster. Combining his robot knowledge and experiences, the EZ-B was designed as an all-in-one solution. The circuit board contains a powerful voltage regulator, a bluetooth antenna module, digital I/O, ADC, servo control, serial ports, MIDI connection, TellyMate interface, and more! This robot controller supports the EZ-Builder software interface to control your robot, without even needing to program! Watch the EZ-Builder Video and see how easy it is to add Camera Color Recognition to your robot without writing any code! For those interested in programming, the .Net EZ-SDK exposes the EZ-B features. Including color camera recognition, voice recognition, voice synthesis, midi control, and more. You can quickly recognize how the EZ-Robot Project was designed for reusable flexibility. Build many DIY Robots with a single EZ-B Controller by simply moving the board between projects.



http://www.youtube.com/watch?v=wa4liJQPh5M&hl=en

Recently I have been thinking about the idea of converting my old Dick Smith Q-1280 oscilloscope I don't use anymore into a video monitor for composite video and NBTV and so have been looking around for schematics to do the job. YouTube user 256byteram kindly provided me with a schematic he made for his video to scope project www.youtube.com so I went to Jaycar bought all necessary parts and constructed the circuit. I then realized I needed a +/-12V power supply and had a 7812 regulator but no 7912 regulator and couldn't be bothered driving to Jaycar so from some site I found an alternate +/-VDC circuit that takes +VDC input, uses a 555 timer to create a low AC voltage and rectifier circuits to create the +/- DC voltage, so I adapted that and inputting a 14VDC power supply I get +/-12.5VDC out to power the video-scope circuit. Anyhow after construction and fixing some of my construction mistakes I hooked up the circuit to my two other oscilloscopes that have X, Y and Z input and fired them up and unfortunately no picture appears but instead I get a funky looking polygon with a raster like display on the inside, the polygon does react to the video input but no picture. Also I am finding when I check the + and - voltage rails I am getting 0 to +/-2V while the circuit is in operation, and when power supply circuit disconnected from video-scope circuit I get the normal +/-12.5VDC. I wondered if there is any shorts, I did check over the circuit and fixed my construction errors ...



http://www.youtube.com/watch?v=Mh4Eg60dkWo&hl=en

A DIY multi-voltage power supply I built the other week. Standard +/- 12, 9, and 5 but with a variable output for mimicking a single AA, or two in series. Not current limited though, that seemed too far for a first try. It might be worth altering the +9V though so it can also mimic a partially drained battery, to confirm performance in things like guitar effects pedals. If I was doing it again, I'd use a transformer with higher current supply, and make two +/- outputs, both variable, using the LM317 regulator instead. That would cover pretty much everything, and be simpler to build. Oh well :) !



http://www.youtube.com/watch?v=aE29WX6PYQM&hl=en

installing a new voltage regulator and asking advice from you cub guys about my busted PTO. should i buy missing parts and rebuild PTO or buy an entire new PTO assembly . it will see some action . it runs the front end loaders hyd . pump. thanks



http://www.youtube.com/watch?v=pmxxtOYlfhw&hl=en

DISCLAIMER: I AM NOT RESPONSIBLE FOR ANYTHING THAT MIGHT HAPPEN TO YOURSELF OR YOUR ELECTRICAL DEVICE. THIS VIDEO IS FOR EDUCATIONAL PURPOSES ONLY AND SHOULD ONLY BE ATTEMPTED AT YOUR OWN RISK. if you need any help building this, pm me and I'll be happy to help



http://www.youtube.com/watch?v=AV-vvpHoh_g&hl=en

Model No. 145:- The main motto of the project is to utilization of sensor with combination of embedded equipment for the door opening systems. This project describes the design and implementations of automatic controller for the door. The door opens when any human movement is detected near the door it detects with help of a PIR (Passive infrared) sensor detects the movement and sends a signal to the transistor, in turn gives interrupt signal to a programmable microcontroller of 8051 family, the output signal form the microcontroller is fed to the DC motor which is used to open the door and close the door which is driven by a motor driver IC. Interrupt signals can be used to stop power to the motor in the event of locked rotor condition. The power supply consists of a step down transformer 230/12V, which steps down the voltage to 12V AC. This is converted to DC using a Bridge rectifier and it is then regulated to +5V using a voltage regulator 7805 which is required for the operation of the microcontroller and other components. For more info visit efxkits.com



http://www.youtube.com/watch?v=-XYnCV-t1wE&hl=en

installing a new voltage regulator and asking advice from you cub guys about my busted PTO. should i buy missing parts and rebuild PTO or buy an entire new PTO assembly . it will see some action . it runs the front end loaders hyd . pump. thanks



http://www.youtube.com/watch?v=pmxxtOYlfhw&hl=en

Please watch this in the highest quality, as it shows much better detail. This is just a preview of my on screen display project in progress. I will have a better video uploaded soon, I just wanted to show people it is not vaporware ... it really works. In this demo, text is drawn and a logo is blitted. All of this is dynamic; it's being drawn at approximately 20 frames per second. As the processor only has 3 MIPS or so of its 39.7 MIPS available for drawing graphics (read: the rest is dedicated to the TV output stage) I think this is very impressive. But look out for even greater performance increases in future versions where I implement a few additional speed ups. The glitch at the top is due to a bug in my OSD, which I hope to fix in the first release. It is just reading the memory before the video RAM and you are seeing the SFRs and line data. Nothing to really worry about. It is helpful as an indicator of frame rate. Super OSD is a free, open-source (GPLv2)** graphical on screen display for PAL and NTSC video signals. It is primarily designed as an alternative to current model aircraft OSDs, which are usually too limited, WAY too expensive, or closed source. It is based on a dsPIC33FJ128GP802. This device has 16K of RAM and 128K of FLASH. Almost 94% of the RAM is used but only about 17% flash is used, this includes the logos you see. An LM1881 is used to sync and a LM317T is used to generate a +3.37V supply for the 3.0-3.6 volt dsPIC. 256x192 pixels are drawn, and ...



http://www.youtube.com/watch?v=RE18gHRUR40&hl=en

This is a detailed walkaround showing the progress to date of my "Daisy the Diesel Project". It was named by my 5 year old Julian who loves watching "Thomas the tank engine" I bought this wonderful engine in Australia from a company called "Ozlisteroids." Their website address is www.ozlisteroids.com Buying this engine was the beginning of a project that just kept growing and growing. The engine is an indian clone of the famous Lister CS "cold starting" 8/1 diesel engine. This particular one was made by the folks at JKSON diesel. It is an 8 hp model, making its power at 850 rpm. Here is a bit of a rundown of what has been done so far in this project. * Stripped down to every last nut and bolt to permit proper cleaning out of the casting sand that we always seem to find in the indian made engines. * All paint and indian body filler removed, then repainted in colours of our own preference instead. * Built a frame to mount it all on, then set about finding and building on a number of interesting things for it to actually drive. There's nothing more boring than looking at videos of all these beautifully restored engines on youtube, which are doing nothing but turning themselves over and looking pretty! Diesels love to work, don't they? ! Well this one gets to work hard, and regularly. No glazed bores here... The two major objects driven by my engine are a heavy duty 240 volt alternator and an air compressor. The air compressor is a brand new 1950's made Bendix-Westinghouse ...



http://www.youtube.com/watch?v=NDrEpgHuFBM&hl=en

This is a detailed walkaround showing the progress to date of my "Daisy the Diesel Project". It was named by my 5 year old Julian who loves watching "Thomas the tank engine" Buying this engine was the beginning of a project that just kept growing and growing. The engine is an indian clone of the famous Lister CS "cold starting" 8/1 diesel engine. This particular one was made by the folks at JKSON diesel. It is an 8 hp model, making its power at 850 rpm. Here is a bit of a rundown of what has been done so far in this project. * Stripped down to every last nut and bolt to permit proper cleaning out of the casting sand that we always seem to find in the indian made engines. * All paint and indian body filler removed, then repainted in colours of our own preference instead. * Built a frame to mount it all on, then set about finding and building on a number of interesting things for it to actually drive. There's nothing more boring than looking at videos of all these beautifully restored engines on youtube, which are doing nothing but turning themselves over and looking pretty! Diesels love to work, don't they? ! Well this one gets to work hard, and regularly. No glazed bores here... The two major objects driven by my engine are a heavy duty 240 volt alternator and an air compressor. The air compressor is a brand new 1950's made Bendix-Westinghouse truck compressor. It's about 8 cfm and air cooled twin cylinder design. It has an internal oil pump and white metal bearings, even ...



http://www.youtube.com/watch?v=NDrEpgHuFBM&hl=en

This is a video camera I designed about ten years ago. Though not tiny by today's standards, about the size of a dice, for a short time it ruled as the smallest commercially available color video camera. Developed completely during my spare time in my small lab at home I designed the circuit board using OrCad Capture and Layout, the body using AutoCad, and would hand solder the tiny components with a regular soldering pencil. Twenty of the components (resistors, capacitors, etc.) on the printed circuit board were in 0402 packages (40 thousandths of an inch long by 20 thousandths of an inch wide). The goal was to get the circuit board down to the same size as the imaging chip which was the smallest available at the time, making it the limiting size factor for the camera. After assembly the whole camera was dipped into rubber tool grip paint to create a thin protective body. I opted to use 1/8th stereo headphone jacks as a power/video connector since regular RCA video jacks and coaxial power connectors would have nearly tripled the size of the entire package. On the circuit board you will see one standard size transistor package (TO-92). This is actually a 5 volt voltage regulator chip which allows the camera to be run safely on a power supply from about 6-14 volts. This camera became the predecessor for many others I have designed for specialized extreme pressure, extreme temperature, extreme vibration and other application projects.FlirGuy I try to respond to all requests ...



http://www.youtube.com/watch?v=pAjRbATG50k&hl=en

A project using Embedded systems that simulates the rolling of a die. Includes a buzzer for the visually impaired. Made for the course 055:036 at the University of Iowa.



http://www.youtube.com/watch?v=darYzQVs80w&hl=en

upload test (1x)PIC16F887A [Microntroller Unit, storage everything and process everything] (1x)20mhz crystal [clock source for the processor] (1x) LM317 [power supply for LED, and LED brightness control] (1x) 10K pot [adjust voltage on the LM317 IC for LED brightess control] (1x) 220ohm resistor [feedback for LM317 IC operation} (1x) 78L05 100ma fix 5V regulator [PIC power supply] (2x) 18pf capacitor [crystal filter] (3x) SN75468 IC [21 column LED cathod current sink] (8x) PN2907A [8 row LED anode current source] (4x) NO pushbutton [for changing menu and character setup] (4x) 0.1uf capacitors [filter noise on pusbutton switch] (1x) 2200uf 10V capacitor [5-voltage line filter] (1x) 8pair-DIP switch (for change mode from programming the PIC to normal operation and also in future, for cascading multiple board ]



http://www.youtube.com/watch?v=ZqFMbjsWD4E&hl=en