基于A3932的无刷直流电动机控制器的设计

Design of Brushless DC Motor Controller Based on A3932

以A3932无刷电动机控制芯片作为逻辑控制器件,实现了一套完整的电动助力车用无刷电动机控制方案。由于芯片自带功率MOS管驱动能力,简化驱动电路设计的同时提高了控制器的可靠性。此外,还包括了霍尔传感器断线检测、电池欠压保护、过流保护等保护功能。实践证明,此方案简单可靠且成本较低,有较高的实用价值。

An integrated design of the controller of brushless DC motor for electric bicycle is presented, The chip A3932 is ased as the logic controller. The drive cireuit of power MOSFETs is simplified and the stabilization of the controller is enhanced attrilbuted to the drive capability of this chip, Also protect circuits against loss of hall signal, low batlery voltage, over currenl are included. The design is practical as its stabilization and its low cost.