What are the requirements for motor drives?

Motors can be used in a variety of applications in a variety of fields, so there are many types of motors, and there are many methods of driving and controlling motors. Today we will mainly introduce you to the requirements for the use of motor drives, so read on

1. High reliability

The motor driver must have proper protection, including features to prevent failures due to supply voltage drops, to safeguard the motor driver IC from abnormal voltages and currents. To maintain safety, it must also include a current limit function that limits motor current when starting or forcing a stop and stopping rotation.

2. Low power consumption and high efficiency

Low power consumption components and drive technology are necessary to reduce the power consumption of the motor. For example, very high efficiency can be achieved over a wide range of speeds, from low speed rotation to high speed rotation, by using, for example, an automatic over-turn angle adjustment function.

3. Quietness and low vibration

The drive waveform must be optimized to reduce noise and vibration during motor operation. Depending on how each area is used, this requires the selection of excitation drive technology that is suitable for the different motor magnetic circuits. Examples include soft-start technology for fan motor drives, current attenuation methods for stepper motor drives (attenuation technology), and optimal excitation modes for brushless DC motor drives (120 degree, 150 degree, sine wave).

4. Control and Convenience

Creating high-performance motor applications requires the use of effective drive control algorithms, such as digital rotation control technology for motors implemented through FLL (speed control) and PLL (phase control), and high-precision positioning control technology required for actuators. It is necessary to implement effective drive control algorithms that are simple for designers to use, for example, by applying control algorithms to drive ICs that are already processed in hard logic. in addition, convenience can be added through drive IC compatibility. During development, when requirements change, it is critical to improve convenience by enabling replacement without changing the motor drive control board model.

The above is the introduction of Vshida Micromotor's motor driver requirements, hope it will be helpful to you, for more related information, please feel free to consult us.