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DC motor driver design base on the H-bridge controlled
Author(s): 
Pages: 42-45
Year: Issue:  5
Journal: Household Appliance Technology

Keyword:  H桥PWM直流电机驱动逻辑控制;
Abstract: 基于H桥控制技术设计了一款用于直流电机的大功率驱动电路,该电路自带死区控制和过流保护功能.系统由单片机、光电隔离电路、逻辑控制电路、H桥分立元件驱动电路、电流采样电路、滤波检波电路、线性放大隔离电路等七部分组成.本文重点介绍了通过对逻辑电路及其时序的巧妙控制,遏制了H桥驱动的直通现象,无需外加死区的控制电路,就能保证电机在正反向可靠运转.系统最大的特点是结构简单,可靠性强,且输出功率优于IC驱动,易形成性价比高的方案.
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