摘 要
無刷直流電機(Brushless DC Motor,簡稱BLDcM)控制系統是一種新型的調速系統,具有良好的運行、控制及經濟性能,有著巨大的發展潛力。無刷直流電機是利用電子換相替代機械換相和電刷,既具有直流電動機良好的調速性能,又具有交流電機結構簡單、運行可靠、維護方便等優點,在眾多領域中得到了廣泛的應用。
現代控制理論飛速發展,無刷直流電機集各種相關科技的發展成果于一身,因此有著明顯的技術優勢。近年來隨著電力電子技術的迅速發展和電力電子元器件的大幅度降價,以及專用集成電路的大量采用,無刷直流電機的電路簡化了很多、成本降低,價格也隨之下降。直流無刷電機的驅動及控制技術作為電氣傳動領域的一個分支,也在其特定的領域顯示出強大的生命力。MC33035是Motorola公司的第二代直流無刷電機控制器專用芯片。基于這種芯片設計的無刷直流電機控制器所需的外圍電路簡單,可靠性高,穩定性好等優點。
本文介紹了Motorola公司的第2代無刷直流電機控制器專用芯片MC33035的基本原理,設計了一種以專用控制芯片MC33035為核心構成的無刷直流電機控制器。
關鍵詞:無刷直流電機、MC33035、控制器
Abstract
Brushless DC Motor (Brushless DC Motor, referred to as BLDcM) control system is a new type of speed control system, has a good running and economic performance, simply controlled. Brushless DC motor commutation alternative is the use of electronic and mechanical brush commutation, not only has good speed regulation performance of DC motors, AC motors also has a simple structure, reliable operation, easy maintenance and so, in many fields have been widely application.
The rapid development of modern control theory, brushless DC motor set all relevant scientific and technological development results in one, so there is a clear technological advantage. Recent years, with the rapid development of power electronics and power electronic components substantially lower prices, and the extensive use of ASIC, brushless DC motor circuit simplified a lot, cost reduction, the price drop. Brushless DC motor drive and control technology as a branch of electrical transmission in the field, also showed their specific areas of great vitality. Motorola's MC33035 is a second generation of brushless DC motor controller ASIC. Based on this chip, brushless DC motor controller design required a simple external circuit, high reliability and good stability.
This paper introduces Motorola's 2nd generation brushless DC motor controller chip MC33035 dedicated the basic principles of design of a dedicated control chip as the core components of the MC33035 Brushless DC Motor Controller.