用于安全气囊的可调频SPWM发生器  

Variable frequency SPWM generator for air-bag

作　　者：何飞云[1] 肖洪兵[1] 郭培源[1] 

机构地区：[1]北京工商大学计算机与信息工程学院,北京100048

出　　处：《电子技术应用》2013年第3期20-22,26,共4页Application of Electronic Technique

基　　金：北京市教委面上项目基金资助(Km201110011007)

摘　　要：针对安全气囊中压电陶瓷变压器的驱动问题,设计了一种基于FPGA的可调频SPWM发生器,给出了设计原理、总体框架及具体实现与仿真结果。仿真结果表明,所设计的SPWM脉冲信号发生器能很好地解决压电陶瓷变压器的驱动频率差异化造成的驱动困难或效果不佳的问题。In order to drive the piezoelectric-transformer inverter in airbag, a frequency-adjustable SPWM generator based on FPGA is designed in this paper. The article presents the principle design, the overall framework and the implementation and simulation results. The simulation results show that the design of the SPWM pulse-signal generator is a good solution to driving the piezoelectric-transformer inverter which has variable working frequency and also is difficult to drive.

关 键 词：压电陶瓷变压器 FPGA SPWM DDS 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]