Refrigerator Damper and Fan Motor Control Solutions

(ACTIVE) TIDA-00297

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Description

Refrigerators often use a damper to control airflow and a fan to provide circulation.  While discrete solutions have been used for years, this TI Design uses integrated motor drivers that provide easy control, high performance, and full protection.  The DRV8848 drives the stepper motor damper, and the DRV10983 drives the BLDC fan with quiet 180° commutation.  The BLDC even has closed-loop speed control, using an MSP430G2553 and the DRV8812 for a PWM-based power supply.  The whole solution uses a single-layer PCB.  BLDC and stepper control example code is provided in the MCU firmware.  Protection from over-current, over-temperature, and under-voltage are all integrated in the DRV devices.

Features
  • Easy control of the stepper motor damper and BLDC, along with high performance and full protection.
  • Single-layer PCB design for cost efficiency.
  • Full-step and Half-step indexing examples for the damper.
  • PCB layout accommodates a circular fan.
  • 180° sensorless BLDC control with ultra-low acoustic noise.
  • BLDC has closed-loop speed control with minimal hardware changes

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

Schematic/Block Diagram

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Design Files

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TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
DRV10983  40W, 24V 3-phase sensorless BLDC motor driver   Motor drivers  Sample & Buy View Design Kits & Evaluation Modules
DRV8812  1.6A Bipolar Stepper Motor Driver with 4-Level Current Regulation (PH/EN Ctrl)  Motor drivers  Sample & Buy View Design Kits & Evaluation Modules
DRV8848  2A Dual H-Bridge Motor Driver (PWM Control)  Motor drivers  Sample & Buy View Design Kits & Evaluation Modules
MSP430G2553  MSP430G2x53, MSP430G2x13 Mixed Signal Microcontroller  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
DRV10983 Download -
DRV8812 Download -
DRV8848 Download Download
MSP430G2553 Download
Download Download
Download Download
Download Download

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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date
PDF 1233 02 Dec 2014
Design files (3)
Title Abstract Type Size (KB) Date
ZIP 419 02 Dec 2014
PDF 120 02 Dec 2014
PDF 286 02 Dec 2014
Related Tools & Software

Software (1)



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