Various aspects of home brew inverters

Author	Message
tinyt Guru Joined: 12/11/2017 Location: United States Posts: 470	Posted: 04:36pm 12 Feb 2019         wiseguy said   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.... ........ The way I remember, signal SCR_SD_N is input to nano1 and nano2. It is output from the SCR (Q6) thru a 1K resistor (r27). It becomes high when the SCR conducts. It now depends on poida's codes how nano1 and nano2 handles it.