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A Brushless Direct Current (BLDC) motor pre-driver is a type of electronic device that is used to control the speed and direction of a brushless DC motor. The pre-driver is typically used in applications where precise control over the motor is required, such as robotics, automation, and medical systems.
The pre-driver serves as an intermediary between the motor and the controller, providing an interface for controlling the motor and allowing for more efficient operation.
The pre-driver works by providing pulse-width modulation (PWM) signals to the motor. The PWM signals are used to control the speed and direction of the motor.
The pre-driver is typically connected to a controller, which can be programmed to set the desired speed and direction of the motor. The pre-driver then converts the controller’s signals into the appropriate PWM signals for the motor.
The pre-driver can also be used to improve the performance of the motor. By using a pre-driver, the motor can be run at higher speeds and with more efficiency. This is because the pre-driver can optimise the PWM signals for the motor, ensuring that the motor is not overdriven or underdriven.
In addition to controlling the speed and direction of the motor, the pre-driver can also be used to protect the motor from damage. The pre-driver can monitor the motor for signs of overheating or excessive current draw, and can then shut off the motor before damage occurs.
This is especially useful in applications where the motor is exposed to hazardous conditions, such as in medical systems or robotic arms.
Overall, the BLDC motor pre-driver is an essential component for controlling brushless DC motors. By providing precise control over the motor, the pre-driver can improve the performance and reliability of the motor.
The Global BLDC Motor Pre-Driver market accounted for $XX Billion in 2023 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2024 to 2030.
The “TC78B011FTG,” a three-phase brushless DC motor control pre-driver integrated circuit, has been introduced by Toshiba Electronic Devices & Storage Corporation and volume shipments have begun. The product is intended for high-speed motors, such as those found in blowers and server fans as well as the suction motors in robot and cordless vacuum cleaners. TC78B011FTG uses a sine-wave drive technology instead of a Hall sensor.
This lessens noise and vibration. Furthermore, without the need for an external MCU, a comprehensive speed profile can be programmed into the IC’s non-volatile memory (NVM) through an integrated closed-loop speed control function. This ensures the suppression of variations in rotation speeds caused by variations in the power supply voltage or load. Additionally, Toshiba mass produces the TC78B009FTG, which employs a rectangular-wave drive method instead of Hall sensor control. This allows users to choose the right product for their preferred motor drive method.
