Texas Instruments DRV11873 Evaluation Module for 12 V, 3-Phase Sensor-Less BLDC Motor Controller DRV11873EVM DRV11873EVM Datenbogen
Produktcode
DRV11873EVM
Introduction
2.5
Motor Outputs
Connect a three-phase 12-V BLDC motor to pins A, B, C, and COM of the header H2. Polarity is not
critical for A, B, and C. The motor outputs are located on H2 as shown in
critical for A, B, and C. The motor outputs are located on H2 as shown in
Figure 5. DRV11873 Motor Outputs
2.6
Operation of the EVM
1. Connect a 12-V, three-phase BLDC motor to pins A, B, C, and COM of H2.
2. Adjust the Spd_Adj potentiometer (R6) to minimum voltage by turning it all the way clockwise. This will
minimize the motor speed.
3. Apply power to the H1 header.
4. Adjust the Spd_Adj potentiometer counter-clockwise towards the motor outputs to increase speed and
the motor will start to turn. Continue adjusting as desired.
5. To change direction, disconnect power and remove J4.
7
SLWU083A – February 2013 – Revised April 2013
DRV11873 Evaluation Module
Copyright © 2013, Texas Instruments Incorporated