Timeline for Why LM317 does not reach maximum output?
Current License: CC BY-SA 4.0
13 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 12 at 5:08 | vote | accept | Rajesh R | ||
| Sep 8 at 12:07 | comment | added | Rajesh R | Sorry mistake.. better than 5K pot | |
| Sep 6 at 11:56 | comment | added | Andy aka | @RajeshR I have no idea what you mean when you say 10K | |
| Sep 6 at 11:51 | comment | added | Rajesh R | Yeah, but it's better than 10K. | |
| Sep 5 at 17:25 | comment | added | Andy aka | @RajeshR that looks promising but, I still think that an input voltage droop may have also been synonymous with the old potentiometer. Maybe something went wrong here? | |
| Sep 5 at 17:18 | comment | added | Rajesh R | @Andyaka yes, may be the variable pot. might be faulty. I changed and tested. The output values and details are edited in question. | |
| Sep 5 at 0:22 | comment | added | SamGibson♦ | @Andyaka - Hi, I don't see a problem here. Your answer mentioned load current. The OP commented. If another site member sees an apparent misunderstanding in a comment (here, it's a comment by the OP) it's fine for that other site member to respond below where that mistaken comment was written. There's no need for site members to specifically avoid replying to other comments below your answers. This is just how comments go sometimes. You likely see this more simply because of the number of answers you write :) And what if the OP had only made that comment here? Responses would be here! TY | |
| Sep 4 at 23:51 | comment | added | Andy aka | @Whit3rd the claim of no loading is made by the OP under other answers so why are you targeting my answer for your comment? | |
| Sep 4 at 17:30 | comment | added | Rajesh R | Its correct - input voltage is 11.99V | |
| Sep 4 at 14:29 | comment | added | Andy aka | @RajeshR nevertheless, the point I'm making is that you cannot expect better than 10.5 volts on a light load and, if your input supply is maybe only 11 volts, you'll get 9.5 volts out but, you may have a fake part or some partially broken part or some other thing like lack of decoupling capacitors. Also have you checked the value of R2? Measure input voltage with the circuit connected is something you have to do. | |
| Sep 4 at 14:14 | comment | added | Rajesh R | But there is no load at output - I only measured it's using DMM | |
| Sep 4 at 14:08 | history | edited | Andy aka | CC BY-SA 4.0 | added 186 characters in body |
| Sep 4 at 13:46 | history | answered | Andy aka | CC BY-SA 4.0 |