LM317 current source simulation - All About Circuits
Mar 30, 2025 · The circuit in the picture with LM317 should provide 1A current, but it gives only 266 mA. What am I doing wrong? I have also attached LM317.asy and LM317.sub downloaded from the link. …
LM317 as a current limiter control - All About Circuits
Jan 5, 2025 · I've seen the circuit diagram (found on the web) part of a Li Ion battery charger attached and from what I understand, the second LM317 (CC) serves a current limiter. I would like to ask for …
LM317 Voltage Drop (IN>Out) Vs Efficiency - All About Circuits
Jan 17, 2009 · Hi Rardi, 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 …
LM317 battery-charger circuit - All About Circuits
Jun 9, 2018 · Hi! I would like to find battery charger design with li-po. Looking at the data sheet to use the LM317, the expression for the basic formula and the battery-charger circuit is confusing. I would …
Creating a high current LM317 regulator - All About Circuits
Feb 25, 2015 · 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. This is the circuit that I used. It …
LM317 LDO design excercise - All About Circuits
Nov 20, 2025 · The LM317 in normal regulator operation, is designed to maintain the Out pin voltage at a value of Vref (1.25V) greater than the ADJ pin voltage, no matter the external configuration. Thus …
Add component to LTSpice | All About Circuits
Apr 8, 2010 · Here is the Spice model I used for the LM317. Code: *LM317 TI voltage regulator - pin order: In, Adj, Out *TI adjustable voltage regulator pkg:TO-3 .SUBCKT LM317 1 2 ...
understanding LED driven by LM317 - All About Circuits
Oct 2, 2009 · The LM317 in this configuration is a constant current device, it will deliver the exact current the LED is rated for (with appropriate selection of the resistor), the LED dropping voltage is irrelevant …
LM317 current injector/boosting circuit - All About Circuits
Mar 1, 2023 · A LM317 circuit controlling to 20mA My concern with this however was whether any damage could be caused to the analog output device in the rig controller, since it will periodically go …
LM317 Voltage Regulator Adjustable on MultiSim! - All About Circuits
Dec 8, 2016 · Hey guys! Any of you knows where can i find the LM317 ADJUSTABLE Voltage Regulator for multisim? It would be very appreciated.