Part Number: TMS320F280049C
Other Parts Discussed in Thread: AMC1311, CONTROLSUITE
Tool/software: Code Composer Studio
Hello team,
We are using TMS320f280049c controller and end application is a) PMSM Motor running in one fixed direction all time, b) with fixed load - attached all the time and c) SW to control speed of it based on some user setting.
1) Pls refer to my earlier post (https://e2e.ti.com/support/microcontrollers/c2000/f/171/t/973343) - response was that "The three-phase voltage sensing signals are a must-have for using the FAST estimator to spin the motor."
2) Due to additional cost involved for that hardware (AMC1311, OPamp, etc..) - we want to control PMSM Motor without using phase voltages.
3) In the next phase - we plan to similarly removing 3 phase currents with one shunt current. We have got a App note on how to do that in code("spract7.pdf"), from you. Thank you.
4) Can you please advise of a better way to do Sl#2. Are there any inter-dependencies on Sl#2 and #3; in other words - can they both co-exist in one solution. We have come across similar solution in another semiconductor company allowing for a low cost design / product. We haven't seen Phase voltage sensing in TI App notes like TIDUEG8A, TIDUA15A, TIDUBX1C.
thank you
