Adjustable DC power supply based on LM317

LM317 Adjustable DC power supply

I made one myself LM317 DC adjustable power supply , Project open source , Including schematic diagram ,PCB, materiel BOM, Circuit simulation

Design principle

TP31C Of 3 Triode is mainly used to protect circuit , then LM317 It's an adjustable LDO, The principle is simple , If you don't understand, you can read the text of the schematic

Two of them are added LED Indicator light ,PCB Hollowing out in the middle is to put a current meter .

Simulation demonstration

The simulation uses mul14, Used to adjust the output voltage , Design and debug the input voltage with 9V better

I sent the demo video B standing , At the same time, the access address of the project is also placed in B The comment area of the station , I hope you find it useful to use one button three times
B Connection of stations
https://www.bilibili.com/video/BV1Ur4y1M7JE？spm_id_from=333.999.0.0&vd_source=777b79c4e106b3c1f680c8095d06adfd