Many controllers claim to use Field-Oriented Control (FOC), but most use a cheap, modified trapezoidal wave that introduces a “cogging” feel at low speeds. The result? Jerky starts and a motor that sounds like a angry swarm of bees.
The IPX956 employs a 32-bit ARM Cortex-M4 processor running a proprietary PureSine 2.0 algorithm. This is FOC with 0.01-degree rotor angle detection. The difference is night and day. ipx956 better