There was a guy that tested the open loop version with little success. 

The closed loop version may work better, but I don't know if it is fast enough. 

My brake is reworked to 96v 40amp 

probably that was another thing why doesnt work corectly 

Posted by: @toni

Thanks !

I think i skip this product and try this... https://www.aliexpress.com/store/product/300A-closed-loop-voltage-negative-feedback-single-phase-AC-solid-state-voltage-regulator-module-220V-380V/1162433_32606038407.html?spm=2114.10010108.1000023.19.3aee3e7fhB3OmG

Its closed loop and negative feedback.

I read that somebody had already done this but some reason had not worked.
Can anybody see any reason why it not work?

Toni

@toni is it working with the retarder brake?

The voltage regulator specifications as following:
input AC：220v/380v - 120A ，

OUTPUT DC： 0-220v/380v.

then I just thinking to use the piggyback engine management analog signal output 0-5v to control the retarder load level. 

is it possible?