Although the controller of brushless dc servo motor controller has been in existence in the market, but the similar products on the market in such aspects as performance, price, stability are often difficult to meet the needs of users. Especially in today's technology open market environment, different manufacturers produced brushless dc servo motor controller control module are mostly the same, there is little innovation and change in technology. For some traditional industries, although the controller of brushless dc servo motor control module has no special requirements on the design, however, with the rapid development of modern electronic technology, especially the electronic products integration, the rapid rise of the modular design idea, requirements of technical performance index of electronic products is becoming more and more high. Because of the brushless dc servo motor controller is a kind of no commutator of the dc motor controller, can effectively overcome the brushless dc motor controller is caused by commutation spark of torque ripple and electromagnetic interference problem, but also do not break the characteristics of the brushless dc motor controller is easy to control. So as the brushless dc servo motor controller used in related industries, people also to its control performance requirement enhances unceasingly. Therefore, to develop high performance of control system of brushless dc servo motor controller become an issue of common concern. The control of the brushless dc servo motor controller has experienced from analog control circuits to the digital control circuit with the single chip processor as the core of the development process, but there are inherent flaws. The former as a result of emulator easy aging and is sensitive to temperature changes; Although the latter overcome the inadequacy of analog devices, computing speed is slow, difficult to achieve modern industrial motor controller is the requirement of real-time control. Before the advent of DSP, the traditional motor controller to control the main designers, using a combination of two kinds of cheap expensive with dc motor controller, the controller control or use sophisticated controller to control ac motor controller. With the development of control theory, in order to develop high performance controller, general single chip microprocessor or more pieces cannot meet the sophisticated control algorithms, make the control of the brushless dc servo motor controller cannot achieve high accuracy requirement. Since the emergence of DSP motor control become one of the DSP main application fields.
