The 3-shunt current sampling need in the moments that 3 low MOSFETS are ON in FOC. I have an question about in this moment. Because when 3 low MOSFET are ON and 3 High MOSFETs are OFF, there isn't any current go through any High MOSFETs. The currents go through the 3 low MOSFETs and 3 shunt resistors are the freewheel current. And this freewheeling current will continue in very short time and decreased to zero very fast. How to decide the accurate moments in this freewheel current period. Thanks.
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