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A BLDC motor controller controls the motor’s speed, torque, and ability to start, stop, and reverse rotation. Let’s first look at the building of a brushless motor to get a better understanding of the controller’s operating principles.
Its principal parts are as follows:
a stator with windings that generate a magnetic field when activated; and an armature or rotor consisting of permanent and frequently neodymium magnets.
The motor rotates thanks to the magnets in the rotor and the windings in the stator. They are attracted to one another by their opposing poles and repulsed by their shared poles. A brushed DC motor goes through a process that is comparable. The method used to switch the current provided to the wire windings is the key distinction.
The Global Automotive Brushless Motor Controller market accounted for $XX Billion in 2021 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2022 to 2030.
Toshiba Electronic Devices & Storage Corporation (“Toshiba”) began volume sales of the “TC78B011FTG,” a three-phase brushless DC motor control pre-driver IC. The item is for high-speed motors, such as the blowers and fans used in servers as well as the suction motors in cordless and robotic vacuum cleaners.
The sine-wave driving approach used by TC78B011FTG does not rely on Hall sensor control. This lessens noise and vibration. Additionally, a built-in closed loop speed control function enables the programming of a thorough speed profile into the IC’s non-volatile memory (NVM), assuring suppression of rotation speed variations caused by variations in load or power supply voltage without the need for an external MCU.
