Mostly yes! Of course with excessive help of my friends!
Otherwise it would be too expensive.
BR, Toni
Otherwise it would be too expensive.
BR, Toni
8 pairs out !
A real monster!
What is the power supply?
Is it a PA amplifier?
What is the out devices?
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Only new OPS pcbs for the well known and very well workingSA2013/SA2014. See index post 1! 😉
Attachments
SA2015 IPS/VAS/OPS technology is used with IRFP240/9240 and another variant of this amp is using a single pair of IXYS high power VMOS IXTH80N20L/48P20P. This amplifier has been renamed to SA2017. SA2017 isn't cabled because the home cinema/laboratory project uses up all my spare time. Will take some weeks till my new lab goes into "production" 😉.
Have fun, Toni
P.S.: on saturday we will do the floor finish...
Have fun, Toni
P.S.: on saturday we will do the floor finish...
My SA2014 build thread started here:
ASTX SA2014 Build Thread. 2 x 400W@4R with CNC machined case.
This will be a big step up in complexity compared to any of my previous builds (Myref and some 41hz Tripath a long time ago...) so I'd appreciate some help from you guys along the way. Thanks in advance!
ASTX SA2014 Build Thread. 2 x 400W@4R with CNC machined case.
This will be a big step up in complexity compared to any of my previous builds (Myref and some 41hz Tripath a long time ago...) so I'd appreciate some help from you guys along the way. Thanks in advance!
A very good decision building the flagship SA2014. 🙂
I will jump in with help whenever it is needed. 😉
Have fun,
Toni
I will jump in with help whenever it is needed. 😉
Have fun,
Toni
Looks nice!
May be my next project.😀
Is the heatsink you sent ideal when forced air cooling used?
What is the dimensions?
I have a salvaged 100+100V 1KW toroidal .😎
May be my next project.😀
Is the heatsink you sent ideal when forced air cooling used?
What is the dimensions?
I have a salvaged 100+100V 1KW toroidal .😎
The heatsink - think you mean ct-400 / 400x120x40 mm - has a RthK of 0.35 degree.
One channel SA2014 driven with +/- 70V rails dissipates about 63W on idle which increases the heatsink temperature about 22 degree above ambient with normal convection cooling. On a hot summer day the transistor temperatures may be too high to be in the allowed SOA range if you drive the amplifier harder ...
With forced air cooling you may use them for this project but you must ensure, that the forced air cooling is equal spread over the whole length of the heatsink.
One channel SA2014 driven with +/- 70V rails dissipates about 63W on idle which increases the heatsink temperature about 22 degree above ambient with normal convection cooling. On a hot summer day the transistor temperatures may be too high to be in the allowed SOA range if you drive the amplifier harder ...
With forced air cooling you may use them for this project but you must ensure, that the forced air cooling is equal spread over the whole length of the heatsink.