LM317 Voltage Drop (IN>Out) Vs Efficiency | All About Circuits
网页2009年1月17日 · Sadly, the LM317 is not very energy efficient. It makes for a very simple solution for linear current or voltage regulators, but it is actually very wasteful in terms of power efficiency. If you've set your LM317 to output 6.4v with a source of 12.7v, then nearly 1/2 of the power is being consumed in the form of heat by the LM317.
I'm looking for a high-efficiency replacement for the LM317.
网页2022年3月14日 · And the Ebay price is under $5 for one. That is pretty hard to beat. Otherwise, the only thing you can do is to try to run the LM317 on lower input volts or use larger heat sinks or a fan. EDIT: Fot less noise, if that is a problem, install one of these in front of the LM317, and set the switch mode supply output volts to 7V.
Add component to LTSpice - All About Circuits
网页2010年4月8日 · The attached file, LM317.zip, contains: LM317.sub - place in ...\SwitcherCad\lib\sub LM317.sym - place in ...\SwitcherCad\lib\sym\PowerProducts That way it will show up in the list with Linear Technology's power products. Since I've added LM317.sub in the symbol itself, you don't have to use the .INCLUDE LM317.sub SPICE …
Alternative Transistors for LM317 High Current Voltage Regulator ...
网页Jun 20, 2017. #1. Hi, I am referring the below circuit diagram to make a High Current Linear Voltage Regulator circuit. This circuit is given in LM317's datasheet. I need the regulator circuit to handle no more than 5 AMP Output Current. I find TIP73 a little overestimate for this current. Moreover, I do not have this transistor handy.
LM317 Voltage Regulator Adjustable on MultiSim!
网页2016年12月8日 · Joined Mar 14, 2008. 35,590. Dec 8, 2016. #2. All LM317 's are adjustable. So Multisim doesn't have an LM317 model built in? What version of Multisim are you using? M.
LM317 - LM338, big voltage drop under load | All About Circuits
网页114. May 30, 2020. #1. LM317 and LM338 are easy to use and pretty straightforward devices for voltage regulation. LM338 is said to be able to supply 5A and LM317 more than 1A current. Just as an experiment I built two regulators, one with 317 and the other with 338. I used 220 ohms / 680 ohms which gave me an output voltage of about 5.8 Volts.
LM317 + MJ2955 = overheating at 5v - 3A | All About Circuits
网页2023年12月13日 · Output choke is from PC PSU's output, all 100nf are too close to lm317, zobel also. The Problem here is power supply overheating even draw 2.5 - 3A with controller connected. Bridge rectifier has 80-85 celcius, lm317+2955 75-80 celcius. isnt normal i …
Creating a high current LM317 regulator - All About Circuits
网页2015年2月25日 · The generator powered an inverter so that the kids could get an idea of how much more power is needed to power an incandescent light bulb than an LED or CFL bulb. To keep the voltage from rising above 13.8 volts I used an LM317 regulator circuit. I found the circuit design on a renewable energy web site in the U.K.
Digital controlled LM317 (DAC) with arduino | All About Circuits
网页2022年11月22日 · Connected A0 and gnd pins to my circuit's gnd which I fed LM317. But, when I create real circuit and test it, I take 2.7 V to 3.3 V from LM317 output. I should take 1.25 to 6.25 V. when I check Arduino's gnd, I realized that it is not 0. ıt is -3 V. Arduino's 5V is actally +2V. which yields voltage different of 5 V. but, I have to connect DAC ...
7805 vs LM317 - All About Circuits
网页2008年1月31日 · The layout is critical. For your application assuming 9V in and 5V out and 100mA max average current you should be fine with the 7805 or LM317. If your currents will be higher and you are battery operated then you would enter the region where the complexity of the switcher becomes less of a factor. S.
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