Recently doing a dc servo motor drive, was in a current loop has a problem, I put the motor phase current sampling resistor in the H bridge (pictured), below the current sampling how to judge the direction of the motor current item?

CodePudding user response:

Such resistance measurement is less than the so-called direction, the direction available input level of judgment

CodePudding user response:

Through current judgment is not, you can by applying QT1 - QT6 tong or QT2 - QT5, to determine the direction, in fact, you in the direction of the information is known