SVPWM implementation with MCSDK

Hi,

I have studied UM1052 user manual about vector control implementation on PMSM. But I have two major problems. The first one is with the SVPWM implementation on sector 4.11 and the other one is "Circle limitation" on sector 4.12.1 .

I am actually looking for a good reference to understand these two parts. I have reviewed many SVPWM application notes and papers. I know the theory completely but this way of implementation MCSDK has used, seems to be unique.

Thanks for your help.