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Forum Index : Electronics : Inverter building using Wiseguys Power board and the Nano drive board
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KeepIS Guru  Joined: 13/10/2014 Location: AustraliaPosts: 2223 |
Remember this part of the New WG inverter build thread is for those builders new to electronics and inverter building. Below: Some of the the FET hardware, like the bolt and white "top / shaft" insulator washers that we use here to centre the FET body correctly over the PCB while soldering.  Below: Try to have a gentle bend in the FET Legs, instead of a right angle, there are proven reasons to do this. I will not be discussing those here, look it up!!  Below: A view of the White insulating (locating as well) washer on one side of the FET.  Below: The washer on the other side of the PCB.  Below: Ready to solder, gate lead will be trimmed neatly later, flip the board over and start soldering the TOP side of the board first. I mount 4 FETS at a time as they share a common copper track, and soldering four FETS in close proximity helps heats the wide track, when the TOP is done, flip the board over and finish the Bottom. Someone asked how long it took to heat the solder pad for the first leg, I was incorrect, it only takes 4 seconds to have the solder flow over the pad and migrate down the FET leg through the board, each one is progressively faster as the whole track heats. If you are doing this in a freezing room, use a heat gun to GENTLY heat the board first, I did not and it's 19°c in the room. As stated earlier, solder the FET leads on the TOP of the PCB first, flat tip on the pad first, when solder flows on the pad, move the tip against the FET lead for a second or two as you feed a little solder, this normally flows through to the pad on the other side, once you get used to it's very quick to solder each leg.  Edited 2026-08-08 16:14 by KeepIS NANO:Inverter V 8.4ks - Linux AvrDude GUI script V4.1 |
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