首页>
外国专利>
Method and apparatus for generating rotation speed information for controlling rotation speed of brushless DC motor
Method and apparatus for generating rotation speed information for controlling rotation speed of brushless DC motor
展开▼
机译:产生用于控制无刷直流电动机的转速的转速信息的方法和装置
展开▼
页面导航
摘要
著录项
相似文献
摘要
The invention concerns a speed-control system, method and circuit for carrying out the system, for a brushless direct-current motor using a digital servo loop, specifically an economical and simple means of generating precise information relating to speed of rotation that can also be converted into digital words that can be processed by a microprocessor or by wired components in normal digital switching circuits like counters, gates, adders and subtractors, flip-flops, multipliers, memories, etc. The motor has a permanent-magnet rotor. The voltage at at least one of the stator windings is employed to generate speed information. This is converted by means of a threshold detector into a rectangular wave that can be further processed by the circuit.
展开▼