This reference design is of a remote-controlled BLDC motor driver for ceiling fan software. The design gives increased effectivity and silent operation in comparison with a standard fan.

Picture of BLDC motor driver (Supply: TI)

The reference design is for a brushless DC (BLDC) ceiling fan which could be managed utilizing most off-the-shelf IR remotes. The reference design can work over a variety of enter voltage starting from 90VAC – 265 VAC. Not like the prevailing induction motors utilized in standard followers, the BLDC motors do not need brushes in order that they last more. Moreover, this reference design with BLDC motors supplies the next torque/power-to-weight ratio, run effectively and silently in comparison with brushed DC motors.

The reference design employs a DRV10983 24-V three-phase motor driver to drive motors with sinusoidal present and sensorless management. The reference design includes a MSP430G2201 value-line processor that allows distant management by decoding infrared alerts. The included firmware permits simple integration with normal infrared remotes primarily based on the NEC transmission protocol.

The reference design has an effectivity of over 85%. The ultimate product using this reference design consumes 30-35 watts per hour in contrast to the 80-100watt required by standard followers. Within the design, total system effectivity is ruled by three-major system blocks, first is the BLDC motor itself together with blades, the second is the three-phase DC/AC stage and the third is the AC-DC stage.

Options
• Sinusoidal sensor-less management at 25 kHz for minimized torque ripple and audible noise
• Common AC working voltage vary 90 Vac to 265 Vac
• Tightly regulated 24V dc achieves ±1% pace regulation all through enter voltage vary
• AC switching produces solely 0.6 % ripple on 24 Vdc for optimum acoustic efficiency
• AC/DC effectivity is >85% in any respect load and line circumstances to satisfy stringent power effectivity necessities

This reference design has been examined by TI. The corporate has additionally supplied extra assets corresponding to schematics, Gerber information, and so forth. Yow will discover extra knowledge in regards to the reference design on the corporate’s web site. To learn extra about this reference design click on here.






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