LM317T Voltage Regulator with Pass Transistor

Well the weather is strarting to get better and the hobby room bug bit me today so I started to install my new regulator and on board glow Thanks for watching



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This is a 1.1w 445nm(Blue) burning laser. it is housed in an altoids box and thermal paste connects the diode to the box for cooling. the circuit is a lm317t and a 1-Ohm resistor along with a 47uF 35V capacitor. a 9v battery was used, even though the rating for a typical 9v is around 0.55Ah ( which means it wont power it for more than 28 minutes) and the lithium version can power it for at most 58 minutes with a rating of 1.2Ah



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the v.2 controller will do 60v with a resister in line with the voltage regulator.



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Here's my DC output voltage reading from my bridge rectifier circuit.



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I apologise in advance for the shaky video during engine starting. I simply didn't have enough hands! This is the initial test of a boost circuit I made to assist with getting an initial field on my ST-10 generator with its output powered voltage regulator. The 9 volt battery is used to "kick start" the field in the event that self excitation is insufficient. Some ST-10 generators (including mine) do not retain enough residual magnetism to start generating when using an output based voltage regulator such as the GAVR-15. This circuit appears to have completely overcome that problem.



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The famous Pivot Raizin VS the new Adhoc Voltaggio automotive voltage stabilizer. This is a hardware comparison video involving dissasembly hardware inspection.



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Check out voodooscooterparts.com to order your LED Voltage Regulators.



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I recently started using Carl Hartman's Tone Preserver (voltage regulator) and think you need to check it out if you want your vintage amps to run on the voltages they were designed to run on. It's compact. Your amps will sound better and run quieter. The website is www.vintagesoundworkbench.com



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This is the latest 3rd version of ZAPTOR Gold Acoustic Voltage Stabiliser...it equipped with an intelligent LED which will change colour based on your car's voltage usage...the more voltage is used...the colour on the LED change and blink faster...



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This is my own diy clock, it's a plan how to build it up. If you have any questions, ask me, maybe I can help. The clock build up in 3 main sections, the 1 hertz source, the number motors, and the 4073 ic-s. It use for restart 10 seconds, and 10 minutes if they reach 6. If the clock reached 24 hour, it must be also restart. With 2 integrated circuit you can generate correct 1 herzt sign. The 4060 make 2 hertz with the oscillating circuit, and the 4013 flipflop divide it with 2. And here you get the one hertz sign. Here is the schematic, as you can see. For display numbers, the circuit use 4026. When it get an input, the number which show, will change 1 higher. And when it reach 10, send an input for the next 4026. So the clock count the 1 hertz signs from the oscillator. You must set the correct time, so the circuit have 2 buttons, one for minutes, and one for hours. If you push down set minutes, you send a 2 hertz signal from 4060 to minutes display 4026. The power supply is 5 volt, made with 7805 voltage regulator.



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www.voltage-stabilizer-regulator.com kami adalah agen resmi voltage stabilizer dengan garansi 5 th mulai dari 1kVA, 3kVa 100kVa 1 phase dan 3 Phase atau sesuai kebutuhan dengan variasi produk yoritsu voltage stabilizer, denki stabiliser,matsuyama avr, matshushita voltage regulator dapatkan free survey untuk jabotabek hubungi 085697519388 (luhur) CV Budikarya teknologi



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Speaker: script Alternative and mobile power for all your little toys This talk will show you how to solar-power your laptop, PDA, cell phone, portable fridge or almost any other small device. Topics discussed include choosing the right solar panel, using (or not using) a voltage regulator, buffering the energy, some real applications as well as instructions on how to build a small and simple device to measure your power and energy savings. Do you want to use your laptop in the garden or in the park without needing to pull long cords? Need to recharge your cell phone, PDA or camera in the wilderness? Are you just curious about solar energy or just want to keep your drinks cool on a hot summer day? Well, then you should attend this lecture! Contents of the lecture: * Motivation * Decide what you want to have powered * Choosing the appropriate solar panel * Connectors, adapters, plugs * The universal Buck/Boost voltage regulator * Building your own device to measure voltage, current, power and energy * Applications More information about the 25th Chaos Communication Congress can be found via the Chaos Communication Congress website: bit.ly Source: bit.ly



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Lecture Series on Electronics For Analog Signal Processing I by Prof.K.Radhakrishna Rao, Department of Electrical Engineering,IIT Madras. For more details on NPTEL visit nptel.iitm.ac.in



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Measure the Power Supply Ripple Rejection (PSRR) of a linear regulator Scot Lester SVVC014



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NUD4700 Active Shunt Regulator as a Low-Cost Way to Ensure LED Reliability When lighting equipment is mission-critical, ensuring its long useful life is absolutely necessary (examples include headlights, lighthouses, bridges, airport runways, etc.). In the past few years, serial LED networks have been actively used for these purposes. However, failure of a single LED light causes the entire series to fail as well. ON Semiconductor offers a low-cost solution that ensures uninterrupted operation of a LED networks even after one the lights burn out. It can be achieved by connecting NUD4700 active shunt regulators in parallel to each LED. When an LED burns out, the shunt regulator is connected to the circuit, allowing the current to bypass the burnt-out light. NUD4700 shunt regulators are intended for use in parallel with LEDs and come in POWERMITE casings with two terminals for surface mounting. An electronic shunt regulator consists of a thyristor and a control circuit that includes a voltage reference diode and a resistor voltage splitter. A capacitor in the thyristor control electrode circuit ensures reaction delay and prevents false triggering. If a burnt-out LED is replaced with a functioning one, the NUD4700 shunt regulator is switched to the off state, which means it is fully recovered and ready for use again. The circuit must be connected in the following manner. The NUD4700 active shunt regulator is connected in parallel to each LED, which enables the entire network ...



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Modifying the feedback path of an ATX power supply allows you to adjust the voltage of the outputs. The result is a very cheap, efficient, stable supply which can output from 3.1V to around 28V, at up to 3 amps, perhaps more. WARNING: I am not responsible if you electrocute yourself. A computer power supply / ATX power supply is mains operated equipment. It can have voltages of up to 350V across some components when live. Be very careful when working with one. Take all precautions, a shock could be fatal, at the very least it can cause burns and hurts a lot! I used a 1k pot and an old 120W ELENCO power supply. It may well work with different power supplies. In my case, I found I was able to get the rails to vary quite significantly. Your mileage vary vary. 12V: 10.6V - 28.5V 5V: 4.8V - 11.5V 3.3V: 3.1V - 8.5V -12V: -11.1V to -30V 5Vsb: constant 5.06V Future ideas are to add a linear pass transistor voltage regulator on the output - this would drop a few volts but significantly reduce ripple, and to add a microcontroller for features like constant current/constant power/current limited and automatic switching between rails to achieve a full 0-25V range.



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Installed a new RR from Oregon Motorcycle Parts on my cfmoto 250cc chinese scooter



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-Fonte ajustável de 1.3va 29V suportando uma corrente máxima de 10A na saída. -Possui ajuste grosso e ajuste fino de tensão permitindo ajustes precisos como por exemplo 3,3V. -Utiliza o regulador de tensão LM317 e 02 transistores 2N3773 para suportar a corrente de 10A sem aquecimento excessivo. -Um cooler foi adicionado aos transistores de saída para mantê-los sem aquecimento excessivo mesmo com a carga máxima de corrente. -Cada transistor desta fonte suporta até 16A de corrente, portando na carga máxima, cada um deles estará com 5A de corrente evitando que eles aqueçam excessivamente e queimem. - O Display utiliza uma bateria 9v para alimentação independente da fonte.



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Furman's Christos Desalernos introduces the Furman P-3600 AR G Global Voltage Regulator at NAMM 2010. Ideal for touring musicians, the P-3600 AR G provides a clean and stable 120V of AC power anywhere from any voltage input between 88V-134V and 170V-265V. For more information, see www.furmansound.com



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with Jim Williams, Staff Scientist video.linear.com The universal application of switching regulators, combined with the powered systems potential for supply noise sensitivity, mandates the need for a reliable noise measurement technique. Actually, switching regulator "noise" isn't really noise at all, but coherent, high frequency residue directly related to the regulators switching. This residue, composed of fundamental switching frequency ripple and wideband harmonic, is the measurand.



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Visit www.microchip.com to learn more.This video provides an overview of MCP1640 Sync Boost Converter Evaluation Board. It demonstrates the ease of use and minimum number of external components power supply solution for applications powered by one-cell, two-cell, or three-cell alkaline, NiCd/NiMH; one-cell Li-Ion or Li-Polymer batteries



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SOME NOTES: These are just a few tips I found as I designed the circuit for the car. I hope it saves people some of the headache I had to go through. -Voltage Regulators [5v adjustable = LM318C] [12v adjustable = LM317C] if you do not have them already. -- You will need two resistors for the Voltage regulators. I recommend using 200ohms for the first resistor, and a 1k potentiometer for the second one. --Here is the data sheet "www.national.com/ds/LM/LM117.pdf" -Almost all of the parts came from Radio Shack (Even battery cases)



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Voltage regulator and forward only high side of an H-Bridge (P-MOSFET). 13.1 volts are delivered to motor while 6 volts are delivered to the stock electronics via a voltage regulator. For more info on this project, and many more, visit: z3.invisionfree.com



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Disclaimer: unfortunately I cannot be responsible for damages to your equipment as this is not a common rapier or service procedure and you will be using non original parts that said if you follow the video to every step and make sure you are confident you have the correct parts youll be fine. (Sorry just covering my ars) This is a video showing you how to replace the little pop up target light on the front of your Technics SL MK2 turntable to an LED. the advantages to this are, the LEDs draw less power, they are brighter, they have a longer life span and as an added bonus they work out cheaper in the first place. By the way the LEDs on my decks look blue but they are actually white, they look blue on the camera because they have a high colour temperature. Order codes: Order code for maplin led: N28BY = WHITE. N30BY = GREEN. N33BY = SUNSET ORANGE. N31BY = BLUE. N32BY = YELLOW. Order code for maplin voltage regulator: QL31J = (PART NUMBER: TS7805CZ) OR UJ54J = (PART NUMBER: L78S05CV) When ordering the voltage regulator be sure to check the part number on the part its self to insure you are getting the correct part. Order code for Radioshack voltage regulator: 276-1770 = (PART NUMBER: ML7805A) WANINGS: Dont have the turntable plugged in while you have the plastic case off, i did the test with the multi-meter so you dont have to. Check and double check that there are no short circuits before powering up your turntable, and never allow a short circuit to occur in the lamp ...



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A quick first try of showing my JCM800. 50Watt 2204 originally built from a Ceriatone Kit. It has a Variable Voltage Regulator installed for fixed biased amps. Sorry, it is just the regular digital camera built in mic, so it seems to make all playing sound the same volume. Sorry about the guitar playing too; totally not paying attention to that aspect of it. I'm no Phil X...



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How To Make Cordless Drill To Crank Charger See how you can use a cordless drill as a crank charger to recharge batteries, even alkalines! Step 1: A Clever Idea It's the holiday season and everybody knows what that means: lots of dead batteries. But, don't throw them out, recharge them. Here's how. A cordless drill can also be used as a generator. Connecting the battery leads inside to a volt meter, and simply turning it, will show this. Step 2: Obtain The Parts All we need now is a voltage regulator. You'll find the perfect part inside a cheap, outdoor solar-powered garden lamp. The battery holder inside has a circuit board attached, which charges the battery from the solar panel. This is exactly what we need. The rest of the parts cost about $3.00 total, and include a C and D cell holder, some alligator clips, and a length of wire. Step 3: Attach The Wire To The Circuit Board Although I prefer to sauter them, you can attach the alligator clips by stripping about a quarter-inch of wire, and using a pair of pliers to firmly clamp them into place. Now, attach or sauter the other end of the wires to the red and black leads on the circuit board. Step 4: Make The Hand Crank I made a hand crank from bending a metal bar that attaches to the drill just like a regular bit. Now, the cordless drill will work just like a hand crank generator. Attach the alligator clips to the battery post and we're ready for testing. Step 5: Test The Machine Let's start with a completely dead NiCad ...



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DIY automatic light regulatorTwilight switches turn on the lights depending on the intensity of ambient light. A twilight switch can regulate illumination depending on the brightness of external light.Automatic built-in regulators maintain a specified illumination level depending on the changes in external lighting. Thus they smoothly adjust specified illumination. In this way lighting can be controlled in the streets, houses, staircases, land estates, shop windows, advertisement signs, and duty rooms of industrial facilities.Automatic light regulators save a lot of electric power. The main category of twilight switches has a photocell in its design.A photocell measures illumination. So depending on the determined value the device turns electric circuit on or off. The popular summer house sensors on solar batteries also have photocells in their designs. To be more specific, they use sensitive phototransistors or photodiodes which turn on the charging mode during the day and switch on LEDs in the nighttime.The operating principle of such device can be shown through the example of two simple assemblies which use a phototransistor and a key element on the basis of bipolar transistors. The devices come without additional up-invertors. They are powered from galvanic cells and are mounted onto small sections of the printed circuit board which facilitates assembly.The number of power elements depends exclusively on the load, ie on the number and capacity of LEDs. One of the ...



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Step by step instructions got building an adjustable voltage regulator using the lm 317



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New xtreme CHARGER v6.9, designed for easy and simple to use with cigarette lighter socket in the car, for Fuel Saving, Smoother Engine, Voltage Stabilizer for the car electrical system. How does it work? We try to share the information. Someday, all vehicles shall have this for standard. Nothing else matter much nowaday besides earthquakes and cyclones, and Crazy Oil Prices! Despite meeting with OPEC for more oil production, prices per barrel actually gone higher! Wonder who's laughing to the bank.



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Gangster Choppers isn't just another pretty name company. Gangster Choppers knows where choppers came from, our parents and grandparents were chopping before us and we are proud to carry on the tradition. We aren't just bolting together catalog bikes like a bunch of companies in the past decade have popped up, chopper this and chopper that. John Dodson isn't about compromise, he builds what he wants and holds true to his origins. Look around at the choppers that have rolled out of the shop over the past 11 years. Both national and international magazine features along with TV coverage. If you're after a chopper with the soul, heritage, and accurate look of a chopper...then you've come to the right place friend. THE BIO OF JOHN DODSON My first bike was a 1975 Harley Davidson XLCH that needed much tender care and more than that it needed my money! I swear every time I rode it something broke or fell off. I got real good real quick at fixing it. One weekend I would ride and the generator would quit, I would fix the brushes just in time for another weekend. Then the starter would quit, fix that on Monday and it would start all over again. I went through ignition coils, voltage regulator, starter solenoid, generator, starter motor, 2 carburetor rebuilds, numerous oil leaks; you name it I dealt with it. That was 20 years ago and I have always been elbow deep in grease. In 1999 I hung a name on the shop calling it Gangster Choppers, the first dozen tee shirts were printed and a ...



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A quick little buck converter that I rigged up. I connected the MOSFET directly to the output of my TL494 so the fall time suffers but it is not too bad. 0-12V output voltage, maybe 1 ampere max.



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