FOC Math Library

The FOC require some mathematical functions to process vectors and to process raw signals from motor power board.

The following list includes the main functions:

• LPF : one / two order on the fly programmable low pass filter. This is simple IIR (infinite impulse response) digital filter.
• Clarke transform: this function is used to convert the measured current and voltage three phases system into two phases system.
• Park transform (and inverse): used to rotate vectors. Mainly used to convert rotor reference to stator reference and vice versa
• SIN/COS : sine and cosine function
• ATAN2 : arctangent function
• RecToPol : rectangular to polar coordinate conversion