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  1. 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. …

  2. 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 …

  3. Constant Current Constant Voltage Battery Charger - All About Circuits

    Nov 19, 2024 · The charging mechanism should be CC then CV during the end of the charging. I'm using LM317 component to achieve constant current source circuit. TL431A acts a temperature …

  4. 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 ...

  5. 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.

  6. 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 …

  7. 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 …

  8. What am I doing wrong with the lm317? - All About Circuits

    Jan 3, 2023 · Hello. I have a very frustrating problem. Im using the lm317 voltage regulator to add adjustability to a fixed output power supply. I have used the lm317 numerous times over the years …

  9. lm317 power dissipation - All About Circuits

    Jan 17, 2016 · I'm using the lm317 to bring 12v to 6v. But the thing get's untouchably hot almost instantly. The voltage drop is about 6v and the current drop is around 2A. So power dissipation is …

  10. 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 …