Had a look at it. Its a coin toss. Without need for thermal tracking the IRFP9140 has more current capability. However if thermal tracking is required the IRFP9240 may be better.😉
A design note that uses 22 ohm gate resistors
http://www.ti.com/general/docs/lit/getliterature.tsp?literatureNumber=snaa058b&fileType=pdf
Another design note that examines the different output mosfets and makes suggestions on gate resistors based on input topology and also examines thermal tracking
http://www.ti.com/litv/pdf/snaa045a
http://www.ti.com/litv/pdf/snaa031a
Both contain pcb examples
http://www.ti.com/general/docs/lit/getliterature.tsp?literatureNumber=snaa058b&fileType=pdf
Another design note that examines the different output mosfets and makes suggestions on gate resistors based on input topology and also examines thermal tracking
http://www.ti.com/litv/pdf/snaa045a
http://www.ti.com/litv/pdf/snaa031a
Both contain pcb examples
The PCBs will be serviced in groups such as 20s so that those who reserved first dont have to wait for others. http://www.diyaudio.com/forums/vendors-bazaar/242311-2diffet-type-2-pcbs-100-a.html. Although am not commenting at the thread am watching it 😉
Personaly I don't like the way you located the power fets.What's wrong with Alexmm his layout?
Lets have a little flavour 😎 , some mix and match ?
Hi Alex send me the layout files to info@harrisonaudiolabs.com
As the 100 PCBs will be serviced in batches of 20. Well the first batch can be one PCB and the next can be another 😉
kind regards,
Harrison.
Hi Alex send me the layout files to info@harrisonaudiolabs.com
As the 100 PCBs will be serviced in batches of 20. Well the first batch can be one PCB and the next can be another 😉
kind regards,
Harrison.
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The schematic
The first 20 will print using this schematic and above layout. Time estimate to print 1 month
The first 20 will print using this schematic and above layout. Time estimate to print 1 month
Attachments
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