一种兼容模拟和数字信号输入的脉宽调制电路  

A PWM Circuits Compatible with Analog and Digital Signal Input

作　　者：李伟权[1] 姜帆 任连峰 LI Weiquan;JIANG Fan;REN Lianfeng(Department of Information Engineering,Xiamen Ocean Vocational College,Xiamen 361102,China)

机构地区：[1]厦门海洋职业技术学院信息工程学院,福建厦门361102

出　　处：《安徽科技学院学报》2022年第5期82-87,共6页Journal of Anhui Science and Technology University

基　　金：福建省海洋经济发展专项(FJHJF-L-2021-12)。

摘　　要：目的:设计一种应用于BLDC(直流无刷电机)中可单片集成的新型PWM(脉宽调制)控制信号产生电路,用同一个输入端口实现模拟和数字两种控制方法的兼容。方法:采用集成电路设计技术,利用0.5μm双多晶硅CMOS工艺完成电路和版图的设计,通过MPW(多项目晶圆)进行芯片流片验证。结果:将该PWM电路应用到H桥BLDC驱动芯片中,芯片的测试结果显示该电路能很好地响应模拟和数字两种输入控制信号,验证了电路的正确性和可行性。结论:该PWM电路能兼容模拟和数字信号控制,具有精确控制脉宽、高度集成的应用特点,能节省外部控制元器件,降低应用成本。Objective:A new PWM(Pulse Width Modulation)control circuit was designed,which can be compatible with analog and digital signal on single input port,and the circuit can be monolithic integrated in BLDC(brushless DC motor)driver chip.Methods:Adopted IC design technology,the circuits and layout were designed with 0.5μm double-poly CMOS process,and tape-out by MPW(Multi Project Wafer).Results:The PWM circuits were applied to the H-bridge BLDC driver chip,and the test results showed their correctness and feasibility.Conclusion:The PWM circuits can be compatible with analog and digital signal,which have the advantages of precise control and high integration,and can save external components and reduce application cost.

关 键 词：集成电路设计 直流无刷电机 PWM调速 

分 类 号：TN43[电子电信—微电子学与固体电子学] TN492