Summing difficulty

Power tools require sensorless operation to ensure that low speeds can provide large output torques.

Some customers are demanding a quick start-up and a good start-up feel.

This ensures that the motor is able to provide the highest possible hard torque when starting

Under severe working conditions, the working current can reach more than 100A in a short time

Comparison of competitors

The traditional soft-core MCU that implements the commutation processing algorithm has a long processing time and limits the maximum speed. Through hard-core autonomous sampling commutation, the MCU can achieve higher motor speeds.

Traditional MCUs with high main frequency and complex functions have high prices and no cost advantages. Fengzhao MCU is dedicated to motor control, and the price advantage is obvious.

The traditional soft-core debugging has many steps, and the MCU only needs to configure the relevant registers and motor hardcores to work independently, and the debugging is simple.

solution

Our company can provide two drive schemes of non-inductive FOC and non-inductive square wave for customers to use, both of which can ensure low-speed non-inductive high torque.

Fast downwind detection to ensure downwind start in ms-level units

The stable algorithm and chip ensure that the motor can run reliably under the state of high current; Fast current protection is achieved by hardware in the event of currents exceeding the rated range