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The BLDC motor is a revolving electric machine with a three-phase sensorless stator in the traditional design. The rotor, like an induction motor, features surface-mounted permanent magnets.
The rotor has no brushes, and commutation is done electronically at a certain rotor position. Because the displacement of the magnets on the rotor produces a trapezoidal BEMF form, a rectangular DC voltage can be employed to generate a rotational field with low torque ripples. Each phase of the motor might have more than one pole pair.
The ratio of the electrical revolution to the mechanical revolution is defined by the pole pair per phase. The rectangular shape of the applied voltage ensures control and drive simplicity.
The Global three phase sensorless drivers 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.
Texas Instruments DRV10987 50W 3-Phase Sensorless BLDC, 12V to 24V Motor A 180° sinusodial motor driver coupled with power MOSFETs provides continuous drive current of up to 2A.
The device distributes current to the motor with a low supply voltage of 6.2V while operating in an ambient temperature range of -40°C to 125°C. Overcurrent Protection detects rotor lock when the power supply voltage exceeds 28V, Lock Detection detects rotor lock state, and Anti-voltage Surge (AVS) Protection.
The DRV10987 provides continuous sinusoidal driving and employs a patented sensorless control approach that significantly reduces the pure tone acoustics that often arise during commutation.
The simple and adaptable I2C interface gives motor speed feedback in tandem with the FG pin. Furthermore, the I2C interface can be utilised to reprogram specific motor parameters in registers as well as to programme the EEPROM, resulting in improved performance in any given application.
The integrated buck regulator powers both internal and external circuits and reduces the DRV10987 to 5V. The DRV10987 is offered in a thermally efficient HTSSOP-24 package with an exposed thermal pad, and it is specifically developed for low-noise, low-external-component-count fan and pump applications.
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