I decided to mothball my power supply project. I may come back to it one day, I may not. I sort of had a rage-quit moment this week-end, when I blew one of the channel's regulator circuits. The thing is, I didn't do anything I didn't think it could handle. Now, the voltage output is always 2 volts higher than what I set it for, and the current-limiting seems to never kick in, it goes to 1 full amp (or at least that's the max I'm capable of measuring) when I short it. Meh. I thought it was more robust than it appeared to be, and I didn't want to spend more time to complete it, only to run into more issues. It needs some re-design.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgGX3I04iXcZiGhfR8PLsPNgXq9FjWkWJsHZ6vNb74cALbcge64UxzfjTYpsGaZHys8VVLG_IECaT6RG2UHwGbkiJ9u51l-7pwf_9oycNkuj4dfCzc432QcqrvjBwlCZ6s7nMNiBjOuEyo/s400/IMG_20120813_214114.jpg) |
The Bench Power Supply (Powerbug 6000), in its
open casket, the mothballs are in my head.... and my heart. |
So as a wrap up, I'm just going to post some pictures I (and my wife, player with an in-law's camera) took of the project.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEidbp0TIPDIBqGvRxjxJMw8MXXbeNCMmStq5zCFvJqQKXxcmmkX74apag3YePc76oUbX_xfjvQh7vdNqQcV_EF-QsK8J0VkyVKEFMNgMFDMtnEySyYV0A4yjPBb1FOqET9kQiu57zbORmE/s400/IMG_1160.JPG) |
My dev setup, a completed regulator channel board is on the left. |
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhhPti4XOlw661a_4SoKLwqjZff7F4hjv46FO0LvXjwwDD4TStzS5VzyoF-O1PumKb-jXnkOqOQgkda5obGvDx7aq2EIpfxE02-UwG7LTHcpo2wK9ptpgdhkdC3YRdC9OWezvO4dlgxalM/s400/IMG_1163.JPG) |
Here's one of the channel board, this is in fact the one that died. |
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhRKd3OnvZGDHTKOhJZfwOK_48gCMursvzVD57C8Hxj79JCiGM1i_xOuJ1hHoURvl_GF79acxJkKHMmwWT8Ay5rIJ-CtVHhJjugEQMEwfyrEPCEn9jZfl4r9nD62bHyUACyqx703MH1Q6E/s400/IMG_1165.JPG) |
The underside of the channel board. I think I'm actually good at putting
together rat's nest perf board circuits. |
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgbGHgNoVm3iWOCHAVsIzEMtt3S7oRWwCuIP9cH1mGFaF4pLEiaLY97vrT-swkWqg9ju87_PJRbgBp3x7X3ux_dKG6GmqOx2NWwq4sEnkduUKmQiwxv60_hyphenhyphenulMxs4P_97wYRK4LdzukKU/s400/IMG_1166.JPG) |
Hot glue! |
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjLkvyb7UpfWLmcOcRFu6_2adxHwBYLt242TDsLbZzRpyE5hb1CCJQztWKVBOdcQi0V-zymENxti00BJER9riJFpHfdryKiefoWQnjLEmKLJtKL2NVoQXMew_H3MDY9rEMeRzX1P43wfvA/s400/IMG_1170.JPG) |
All three assembled regulator boards. I surprised myself in how consistent I
could be in the construction. |
I did put a lot of time into this project, it's another one chalked up to a "learning experience".
As a consolation, my wife is encouraging to just go out and purchase a bench supply. It will not be as cool, or as featured as my supply, but then again, it may actually work.
--P
This comment has been removed by a blog administrator.
ReplyDelete