Bryan1
![](http://myweb.tiscali.co.uk/dirtbox/pics/muttley.gif) Guru
![](forum_images/4_star_rating.gif) Joined: 22/02/2006 Location: AustraliaPosts: 1226 |
Posted: 05:56am 15 Apr 2023 |
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G'Day Guy's, Mike (Wiseguy) came up on Friday with a nice present namely a Aerosharp inverter for me to play with When I said this will be for 24 volts Mike worked out 15 turns should do the job. Then I showed him that 6.5mmX4mm copper wire and asked if it would be suitable for the primary and for the size inverter I'm building it will do the job.
The Toroid
![](uploads/Bryan1/2023-04-15_154624_toroid.jpg)
The name plate
![](uploads/Bryan1/2023-04-15_154649_toroid nameplate.jpg) As the Aerosharp does come with 3 inductors I just had to strip the big one and put some of my tape over the insulation.
![](uploads/Bryan1/2023-04-15_155858_primary choke.jpg) A few years ago Warpspeed (Tony) showed a sketch using this core where 4 turns each side can do both the high and low side inductors and with this wire I can get 2 in hand for the turns.
I have made a start on the Brain board and found I had every resistor bar the 51K which will need to be adjusted to suit the 24 volts so full resolution for the ADC. Where the board calls for a 60 volt to 15 volt board won't be needed for my setup so I was thinking of just using a 7815 with a few dropping diodes to ensure the 7815 stays within it's voltage limits and this can be made on some veroboard putting some pinouts to suit the pcb.
![](uploads/Bryan1/2023-04-15_155233_brain board.jpg)
Yesterday I put that old wire former onto my 2 ring crab burner to anneal the copper and unwinding a few turns this morning proved I can get it nice and straight to install the heatshrink on.
Well with work I will only be able to work on this project on weekends as I am working away so plenty of time to get some research done and order all the parts I need to get this done.
Cheers Bryan Edited 2023-04-15 16:03 by Bryan1 |