A tutorial on the LM317 voltage regulator. Shows you how to make a 1.25 to 25V adjustable voltage supply, or choose any other output voltage you want. An example of a fan speed controller is shown.
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Who else but Dave can turn what was supposed to be a simple 2 minute AVR ISP hack video into a 30 minute episode on designing and measuring the performance of an LM317 voltage regulator circuit, with a bonus shootout between the Fluke 87V and the Gossen Metrahit XTRA multimeters?
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How to build your own linear adjustable power supply based on LM317. In this tutorial I'll explain how linear power supply works, what parts it consists and a lot of small details, like how to calculate smoothing capacitor value, or how to choose a transformer. Plus you'll see how to build an actual power supply. ADDITIONAL INFO & PHOTOS: jumperone.com And you can find some more cool stuff on www.jumperone.com Twitter: twitter.com Videos from other people on similar topics: www.youtube.com - Electronics Thermal Heatsink Design Tutorial from Dave Jones www.youtube.com - Diode Tutorial & How to build an AC to DC power supply from Afrotechmods www.youtube.com - Electrical Transformer Tutorial from Afrotechmods Keywords: LM317 adjustable power supply tutorial linear +5v +12v 5v 12v +3.3v 3.3v lab bench laboratory how to how-to hho diy electronic hack make tinker phil levchenko jumperone electronics instructions howto heat dissipation smoothing capacitor bridge rectifier diode voltage drop
LM317 adjustable power supply tutorial linear +5v +12v 5v 12v +3.3v 3.3v lab bench laboratory how to how-to hho diy electronic hack make tinker phil levchenko jumperone electronics instructions howto heat dissipation smoothing capacitor bridge rectifier diode voltage drop Jumper One TV
This is LM317 Small Power Supply. The input voltage to the LM317 must be at least 1.5v greater than the output voltage. The output is adjustable between 1.25 and 13.5 Volts with a maximum current limit of 1.5 Amps A heat sink will be required for most applications however. On my picture you can see the heat sink. Visit my blog for more information:macoprojects.blogspot.com
In this followup video I'll show some problems that I encountered with my power supply from the previous tutorial video and will show you how I fixed those. It shows that even with the simplest project where "nothing can go wrong" you can't predict every problem that could happen. High-Res Pictures are here: jumperone.com Other videos are here: jumperone.com
LM317 adjustable power supply tutorial linear +5v +12v 5v 12v +3.3v 3.3v lab bench laboratory how to how-to hho diy electronic hack make tinker phil levchenko jumperone electronics instructions howto heat dissipation smoothing capacitor bridge rectifier diode voltage drop Jumper One TV
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LED power driver on the basis of LM317 chipLEDs have become very popular lately. They are used to light up pretty much everything.However, LED is quite a fragile component. It can break when affected by voltage drops, continuous operation in peak modes, and incorrect connection. It is important to know that LED's main longevity parameter is not its power supply voltage but the current which flows through it.I'd like to show you a simplest current regulator which is quite reliable at the same time. It can be easily used in various feed circuits of LEDs.The circuit of such regulator is quite simple. To stabilize voltage "ajust" terminal is usually connected to earth, through a resistor or without it. In this case it is connected with a regulator output.So you can see that you need only one resistor to transform LM317 chip into LED power driver!Rated value of the resistor can be calculated with this simple formula. So we'll have 62 Ohms of rated resistance for an LED with a 20mA current. The chip's maximum input voltage equals 37V. That means you should use the regulator for voltage up to 37V.The only condition that you have to follow is that you must select the number of LEDs in such a way so that the regulator has as little voltage left as possible - but no less than 1.3V. This is necessary for reducing dissipated power on the regulator itself. It is especially important for large currents.And do not forget to install a chip onto the radiator at 350 mA currents or above.
Here is video of Adjustable Regulator using LM317(3-Terminal Adjustable Regulator).The LM117 series of adjustable 3-terminal positive voltage regulators is capable of supplying in excess of 1.5A over a 1.2V to 37V output range.Here is very simple circuit having Two Capacitors , One Register Pot and LM317.The value of Pot is chosen so that my output voltage vary between 0V to 0.55V (DC).
How to build your own linear adjustable power supply based on LM317. In this tutorial I'll explain how linear power supply works, what parts it consists and a lot of small details, like how to calculate smoothing capacitor value, or how to choose a transformer. Plus you'll see how to build an actual power supply. ADDITIONAL INFO & PHOTOS: jumperone.com And you can find some more cool stuff on www.jumperone.com Twitter: twitter.com Videos from other people on similar topics: www.youtube.com - Electronics Thermal Heatsink Design Tutorial from Dave Jones www.youtube.com - Diode Tutorial & How to build an AC to DC power supply from Afrotechmods www.youtube.com - Electrical Transformer Tutorial from Afrotechmods ...bonus: youtu.be Keywords: LM317 adjustable power supply tutorial linear +5v +12v 5v 12v +3.3v 3.3v lab bench laboratory how to how-to hho diy electronic hack make tinker phil levchenko jumperone electronics instructions howto heat dissipation smoothing capacitor bridge rectifier diode voltage drop
LM317 adjustable power supply tutorial linear +5v +12v 5v 12v +3.3v 3.3v lab bench laboratory how to how-to hho diy electronic hack make tinker phil levchenko jumperone electronics instructions howto heat dissipation smoothing capacitor bridge rectifier diode voltage drop Jumper One TV
This is a review and test of the Circuit Creations LM317 Power Regulator Kit 101 bought from www.circuitcreations.com
LM317 Circuit Creations Kit 101 Power Regulator DIY weburbanllc
Here is the breadboard mock up of my pedal meter. The black flex sensor gets placed on the pedal. As you press down on the pedal, the sensor flexes and lights up the display. I hope to use this in my drift car to help data log my runs with only 1 camera.
This is my little voltage regulator based on LM317T with heatsink because it receives a lot of current. It controls the main fan and the CPU fan added on the heatsink cut.
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Showing you how to make an unregulated power supply adjustably regulated through an lm317 adjustable regulator
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This video is just to present an Instructables.com tutorial that I'm making. You can see how and why it works here, than go to the Instructables page and search for "Verstatile voltage regulator with LM317" than see how I built it and build your own. www.instructables.com Aos brasileiros : Desculpas aos que nao sabem ingles, mas quis fazer algo para compartilhar com o mundo. Quem quiser legendar posso disponibilizar o video e agradecer bastante.
This video is deprecated because you can't see the readings on the multimeter. look at my videos and see "Adjustable voltage regulator with LM317" This video is just to present an Instructables.com tutorial that I'm making. You can see how and why it works here, than go to the Instructables page and search for "Verstatile voltage regulator with LM317" than see how I built it and build your own. Aos brasileiros : Desculpas aos que nao sabem ingles, mas quis fazer algo para compartilhar com o mundo. Quem quiser legendar posso disponibilizar o video e agradecer bastante.
Desempenho de um Amperímetro de Corrente Alternada, medindo Corrente Contínua, sendo comparado com um digital. Carga em teste: Uma lâmpada de 12V x 50W (4,1A) Componentes: LM317 MJ15004 Amperímetro AC Voltímetro digital Capacitor de filtro de 26.000uF Transformador 20+20V x 10A O Circuito: img225.imageshack.us
Circuito alimentador a base de integrado lm317, sirve para alimentar un telefono celular en el vehiculo y así eliminar la bateria del celu o en caso de falla de esta, además se puede conectar cualquier dispositivo que requiera un voltaje de entrada de hasta 9v
