LM317T Voltage Regulator with Pass Transistor

Zener Diodes and Silicon Diodes, Multiple Output Regulated Power Supply.



http://www.youtube.com/watch?v=x6hobqY0fWQ&hl=en

Wiring of an old Ford Truck externally regulated alternator. This is from a 1985 Ford F350 with the 6.9L diesel engine.



http://www.youtube.com/watch?v=KjdaTypqj6o&hl=en

boginjr.com A few resistor modification, some desoldering, wiring and an LED voltmeter from eBay and voila, our new supply with overcurrent protection (short circuit proof) is now done. Video includes "heavy duty testin' " with a small peewee two watt 0R58 resistor (to check the maximum current provided by the supply), purposely haven't kept it there for more than a second or two, or else it would burst in flames real quick xD - And say goodbye to your LM317 "lab power supplies" !



http://www.youtube.com/watch?v=3LBsFrbPzb8&hl=en

Link to page: www.pcbheaven.com This is the remake of the third episode of the LED driving and controlling methods Theory Series. In this episode i explain how can someone design a constant current LED driver with a single transistor, biased with a Zener diode to achieve constant current regulation regardless of the power supply voltage. Additionally, i analyze a second circuit with sme functionality but instead of the Zener diode i use two simple diodes. On-line calculator for this circuit: www.pcbheaven.com



http://www.youtube.com/watch?v=fMc99rM6u4k&hl=en

**Always follow the instructions in your repair manual when doing repair or maintenance work on a motorcycle. Manuals can be found at the dealer and online.** To check the regulated charging voltage on a 2009 Kawasaki KLR 650, requires a voltmeter, ratchet, extension, and a 8mm and 10mm socket. The first step is to warm up the motorcycle to operating temperature. After the bike is warmed up, remove the side panels and seat to get access the the battery terminals. The battery must be in good condition and be fully charged and the battery terminals should be clean and making good contact with the battery. According to the Clymer manual a fully charged battery must measure 13 or more volts, but I think anything over 12.6 volts is fully charged. After determining that the battery is good and fully charged, run the motorcycle at 3000 rpm and turn the headlights on bright. Place the meter leads on the battery terminals and measure the voltage. You should get a voltage between 13.8 and 14.8 volts. If your measured voltage is out of range, than obtain a wiring schematic for the motorcycle. If the voltage reading was low, than check for a open or short circuit in the charging system wiring, and also check the alternator stator, and condition of the regulator/rectifier. If your reading was high, than check the condition of the regulator/rectifier, and check all connections related to the regulator/rectifier. A bad battery can also cause a bad reading, so its very important to make ...



http://www.youtube.com/watch?v=doFNSjWf1U0&hl=en

Day 1: Voltage Regulated, Current Limiting, Power Supply Regulator. Takes unregulated 15-25 volt supply and provides a regulated 2.7-13.8 volts with selectable current limiting. I suggest building it with a 20-30 mA limit, and a larger one, several hundred mA, or whatever your transistor can dissipate in the worst case.



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

This is an electronically fired pulse motor. It is using a device called a " step down adjustable switching regulator" that is 90% efficient to control the supply voltage . A small solar panel is used to supply energy to a 5Ah 12v lead acid battery. That energy is then metered out to the motor thru the regulator. More energy goes into battery during the day than the motor consumes. At night the motor runs on the stored energy. The pulse motor circuit is a John Bedini patented design.



http://www.youtube.com/watch?v=qYfAzIytEJ8&hl=en

www.microchip.com Walk through the basics of a charge pump circuit. Each components significance is highlighted using a series of slides that show both the schematic and output waveforms. Next, a pulse train is applied to the circuit to create a voltage doubler. Intelligence is later incorporated using a comparator peripheral on a PIC Microcontroller to regulate output voltage. All equations required to build the circuit are discussed as well as derivations and importance. Finally, using the same components, a voltage inverter is created to show some alternate configurations.



http://www.youtube.com/watch?v=P-Pv8TL2WC4&hl=en

Lecture Series on Basic Electronics by Dr.Chitralekha Mahanta, Department of Electronics and Communication Engineering ,IIT Guwahati. For more details on NPTEL visit nptel.iitm.ac.in



http://www.youtube.com/watch?v=x2wqwqUhMdE&hl=en

This video shows how a LM317 Variable Voltage Regulator works with the explanation of pin diagram circuit and some tips... Tutorial- Part 1- 1.2 To 25V/3A Regulated Power Supply



http://www.youtube.com/watch?v=dCEY3At_p5I&hl=en

This is the Slayer007 Generator with a voltage regulator added to control the energy used to drive the oscillator.



http://www.youtube.com/watch?v=KwqMDBrF9wM&hl=en

This is a solid state radiant energy battery charger being run using a step down adjustable switching voltage regulator to control the energy drain from a power source.



http://www.youtube.com/watch?v=NAdYlhP6opY&hl=en

progettazione realizzazione costruzione e collaudo di un alimentatore stabilizzato ceazione PECAFE



http://www.youtube.com/watch?v=6nNhT4G3-8I&hl=en

progettazione realizzazione costruzione e collaudo di un alimentatore stabilizzato ceazione PECAFE



http://www.youtube.com/watch?v=6nNhT4G3-8I&hl=en