EVAL6226QR

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EVAL6226QR is a complete high-performance encapsulated 3-phase brushless DC motor control evalution board kit. It is designed for applications that require high-performance, low-cost BLDC motor control. This product includes a PC software package, two main boards, and one extend board which contains two adjustable power amplifiers, one current sensor, and two temperature sensors. With advanced features such as anti-skid braking, overload protection, temperature regulation, and adjustable speed control, this evaluation board kit provides an excellent platform to demonstrate and evaluate effective motor control solutions.

System Overview

The EVAL6226QR evaluation board kit consists of two main boards: the control board and the power board. The control board contains a 32-bits ARM Cortex M7 processor, various timers, I/O analog channels, as well as three voltage sensors. It drives the system\'s power board by providing accurate PWM signals, enabling it to drive the motor in an efficient way. Within the control board, there are two ports provided for user connection of add-on boards, such as current sensors, temperature sensors, etc. This makes it much simpler for users to make connections to the system.

Power Management

The power board contains two independent adjustable power amplifiers which are separately controlled by the control board. These amplifiers are capable of delivering output currents up to 40A and the total current output of the two amplifiers can reach up to 80A. The power board also contains four bridge drivers for controlling the motor phase shifts. During the motor control, the bridge drivers provide different voltage/current combinations to the motor coils so that the motor can rotate in an optimal way.

Safety and Protection

The EVAL6226QR evaluation board kit offers excellent safety and protection features. It is designed with an integrated anti-skid braking system which eliminates any sudden stopping of the motor by gradually decreasing the motor speed once the brakes are applied. The evaluation board is also equipped with an overload protection system which will cut off the power supply if the current input reaches the overload limit. The board is designed to monitor the temperature of the motor coils and stop the motor when the temperature exceed the set limit.

Speed Control

The speed of the motor can be controlled by varying the PWM signal from the control board. The user can select between linear or linear-plus-square speed control curves. The linear speed control method offers a smooth speed variation from zero to the maximum speed. The linear-plus-square speed control method adds a square-shaped speed control curve to the linear-speed-control method to offer more efficient speed control.

Conclusion

The EVAL6226QR evaluation board kit provides a complete and cost-effective solution for motor control applications. It is equipped with integrated features such as anti-skid braking, overload protection, temperature regulation, and adjustable speed control. With the PC software and add-on boards, this evaluation board kit can provide the user with a flexible platform for evaluating and demonstrating high-quality motor control solutions.

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