研究了一种无位置传感器电机控制器，该控制器采用了反电动势过零检测技术、“三段式”起动技术、自举驱动技术和大量高集成度芯片，在控制器可靠工作的前提下，减小控制器的体积和重量，满足了人工辅助心脏项目的要求。%This paper studies a kind of sensorless motor controller. The controller uses the technology of zero crossing detection of counter electromotive force, starting technology of three stops, bootstrap drive technology and mass high integration chips. On the basis of reliability, it reduces the volume and weight of the controller and meets,the project requirements of the assisted heart.
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