一种基于PWM的H桥超声发射电路设计

设计了一种脉冲宽度调制的H桥超声发射电路，该电路由PWM电路、H桥功率放大电路、低通滤波电路组成。该发射电路具有结构简单、输出功率高、可对大部分的波形进行调制发射、易于多通道拓展的优点。通过时该电路进行仿真和实际电路的测试，证明所产生波形满足设计要求，并可以用于超声探测和成像系统。...

Full description

Saved in:
Bibliographic Details
Published in电子技术应用 Vol. 41; no. 10; pp. 126 - 128
Main Author 李鹏 陈赛 柴文兵
Format Journal Article
LanguageChinese
Published 南京信息工程大学江苏省气象探测与信息处理重点实验室,江苏南京210044 2015
江苏省大气环境与装备技术协同创新中心,江苏南京210044
南京信息工程大学电子与信息工程学院,江苏南京210044
Subjects
H桥功率放大
脉冲宽度调制
超声发射
超声发射
H桥功率放大
H bridge power amplifier
脉冲宽度调制
PWM
ultrasonic emission
Online AccessGet full text
ISSN0258-7998
DOI10.16157/j.issn.0258-7998.2015.10.034

Cover

More Information
Summary:设计了一种脉冲宽度调制的H桥超声发射电路，该电路由PWM电路、H桥功率放大电路、低通滤波电路组成。该发射电路具有结构简单、输出功率高、可对大部分的波形进行调制发射、易于多通道拓展的优点。通过时该电路进行仿真和实际电路的测试，证明所产生波形满足设计要求，并可以用于超声探测和成像系统。
Bibliography:Li Peng,Chen Sai,Chai Wenbing （1.School of Electronic and Information Engineering, Nanjing University of Information Science ＆ Technology, Nanjing 210044, China ; 2.Jiangsu Key Laboratory of Meteorological Observation and Information Procession, Nanjing University of Information Science and Technology, Nanjing 210044, China; 3.Jiangsu Collaborative Innovation Center on Atmospheric Environment and Equipment Technology, Nanjing 210044, China）
ultrasonic emission ; PWM ; H bridge power amplifier
In this paper, a H bridge ultrasonic transmitting circuit with pulse width modulation is designed, which is composed of PWM circuit, H bridge power amplifier circuit and low-pass filter circuit. The circuit has the advantages of simple structure, high output power, and can modulate the majority of the waveform, easy multi-channel expansion. Through the test of the circuit and the actual circuit, it is proved that the waveform meets the design requirements and can be used for ultrasonic detection and imaging system.
11-2305/
ISSN:0258-7998
DOI:10.16157/j.issn.0258-7998.2015.10.034