Guru
Joined: 21/06/2018
Location: AustraliaPosts: 1225
| Posted: 02:18pm 12 Feb 2019 |
Hi TinyT, I am implementing my version of a control board bit by bit and I hit a small stumbling block. I refer to your schematics to ensure I have the right pin numbers etc.
Nano1 has an input shown as "SCR_SD_N" which caused me to re read about 40 pages to discover what the hell it was. After looking at Nano2 which also has this mysterious input I think I now get it.
Does Nano1 have the flag the wrong way around - it is an output to nano2 so Nano2 knows why the toroid has suddenly gone so quiet, and why the lights went out....
I'm glad to see the finished results are starting to make some sine waves.
I only have 2 types of outputs from my control board to the power boards as I will only be driving optos. One uses the IR2184 direct to optos in the standard fashion (with inherent dead time), the second type uses a quad exclusive or gate to provide complimentary drives (no dead time) which are intended to drive the opto couplers using Warps inverse parallel trick and can provide for more (increased) dead time by adding a small cap if required.
Hope to send out for manufacture this week.
If at first you dont succeed, I suggest you avoid sky diving....
Cheers Mike