The development time of BLDC motor development and design will be greatly reduced. Brushless DC motors or permanent magnet synchronous motors (PMSM) have become the general trend to replace traditional general-purpose motors or AC motors; in response to this development, Fairchild Semiconductor introduced a three-phase hybrid analog and digital motor controller and integrated micro control for the first time. (MCU) and Advanced Motor Controller (AMC) to help manufacturers shorten the product design time.
Fairman Semiconductor ’s power conversion, industrial and automotive business unit sales manager for brushless DC motor product line Jian Wenen said that the integration of MCU and AMC motor control solutions can reduce customer software burden and provide a flexible design.
Fairman Semiconductor's Power Conversion, Industrial and Automotive (PCIA) Division Brushless DC Motor Product Line Marketing Manager Jian Wenen said that as the brushless DC motor product line gradually replaces traditional AC motors, motor design with only a mechanical professional background Engineers often encounter dilemmas that cannot solve electronic circuit design algorithms and software coding for electronic control components such as digital signal processors (DSPs), leading to delays in product launch time.
In view of this, Fairchild Semiconductor launched a modular, advanced motor control library for brushless DC motors, which not only shortens software design time, but also reserves programmable system control and communication interface space for designers to meet product needs Add special features.
In addition, Fairchild has further reformed the motor controller architecture, using AMC with MCU to achieve dual-core parallel processing calculation effect, which can avoid sudden system crash and improve motor reliability.
Jian Wenene pointed out that this is Fairchild Semiconductor's first embedded microcontroller in a motor controller. The embedded microcontroller will transmit motor control commands to the advanced motor controller, and manage external communication interfaces and motor functions; The first-order motor controller is a hardware-based motor controller with embedded processing core, angle predictor and PWM engine, which can be adjusted for various motor designs and execute sine waves (Sinusoidal Wave ) Control, field-oriented control (FOC) and direct quadrature (DQ) control algorithms, and use the library to set and store.
It is worth noting that compared with the traditional AC motor operating efficiency of only 35%, the brushless DC motor has an energy saving advantage of 90% operating efficiency. Therefore, in recent years, the European Union and the United States, which have high environmental awareness, have introduced forced replacement of traditional AC motors as Brush DC motor policy.
Jian Wenene cited statistics from IMS Research and pointed out that as global energy conservation awareness gradually rises, the proportion of major home appliances (washing machines, refrigerators, air conditioners) to switch to brushless DC motors / permanent magnet synchronous motors from 2010 to 2015 will be doubled from 17.8% To 35.6%.
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