Guru
Joined: 22/02/2006
Location: AustraliaPosts: 1415
| Posted: 01:24am 17 May 2023 |
G'Day Guy's,
Well been doing a lot of thinking and reading old posts particularity where the big choke out of the Aerosharp was used as the primary dual choke. The one I found was done by Tony and as I did just have enough of that enameled wire left well that first choke I made was a donor
to the cause.So 10 turns on each side and I put some of that motor lamination sheet I had left over from my 4Kw motor conversion thru the centre to isolate each choke.
I used some of that motor tape to keep the turns nice and tight and the hunt is for some varnish as some of the wire was scored on one side giving it a sealing paint will isolate the scores
Now I have these chokes I do need to test them out and that pic Tony put up for a choke tester looks the go as I do have a 30 volt 3 amp power supply, a couple of huge can type caps 1500uf 450 volt of memory to use. My 600 amp clamp meter is works after all these years so I can measure the current. Now with the schotty diodes used it was said they were chosen for the low voltage drop which off memory 0.3 forward voltage. It just happens those big fets I got off that first grid tie have the same forward voltage in diode mode.
I do have old scope so the smoke test is needed to see if it still works and I do have my 865 Fluke Scope meter so I can take pic's of the wave form.
Which brings up the next hurdle actually powering up this tester as it has been a very long time since I was programming.
Cheers Bryan