[1]何建桥,李禹志,郭各朴,等.宽带D类超声功率放大器的设计与实现[J].南京师范大学学报(工程技术版),2020,(01):025-32.[doi:10.3969/j.issn.1672-1292.2020.01.005]
 He Jianqiao,Li Yuzhi,Guo Gepu,et al.Design and Implementation of Broadband Class-DUltrasonic Power Amplifier[J].Journal of Nanjing Normal University(Engineering and Technology),2020,(01):025-32.[doi:10.3969/j.issn.1672-1292.2020.01.005]
点击复制

宽带D类超声功率放大器的设计与实现
分享到:

南京师范大学学报(工程技术版)[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2020年01期
页码:
025-32
栏目:
电子科学与技术
出版日期:
2020-03-15

文章信息/Info

Title:
Design and Implementation of Broadband Class-DUltrasonic Power Amplifier
文章编号:
1672-1292(2020)01-0025-08
作者:
何建桥李禹志郭各朴马青玉丁鹤平
南京师范大学物理科学与技术学院,江苏 南京 210023
Author(s):
He JianqiaoLi YuzhiGuo GepuMa QingyuDing Heping
School of Physics and Technology,Nanjing Normal University,Nanjing 210023,China
关键词:
功率放大器宽带D类PWM型超声换能器
Keywords:
power amplifierbroadbandclass-DPWM styleultrasound transducer
分类号:
TN837
DOI:
10.3969/j.issn.1672-1292.2020.01.005
文献标志码:
A
摘要:
为了解决大阵列相控的功率、效率及散热问题,促进相控声场的非接触物体操控及其在医学超声中的实际应用,设计了一种PWM型D类超声宽带功率放大器. 对阻性和抗性负载的输出波形开展谐波失真、负载电压和输出功率的测量结果表明:该电路可对20~400 kHz的中低频超声输入信号进行功率放大,其最大输出功率可达46 W,效率超过78%. 该电路具有输出内阻小、阻抗匹配简单、相位保持度高、功率损耗低和发热小的优点,可为超声技术在生物医学中的应用提供电路基础,实现大规模相控阵列的精确驱动,具有良好的推广价值.
Abstract:
In order to solve the problems of power,efficiency and heat dissipation for the phased transducer array in non-contact object manipulation and its practical applications in medical ultrasound,a PWM style class-D ultrasonic broadband power amplifier is designed and implemented. The waveforms of the resistive and resistant loads are collected to analyze the characteristics of the harmonic distortion,the load voltage and the output power. The measured results show that the class-D ultrasonic power amplifier can work in the medium and low frequency with the range from 20 kHz to 400 kHz. The maximum output power is up to 46 W with the efficiency higher than 78%. The class-D ultrasonic power amplifier has the advantages of low output resistance,easy resistance matching,high phase retention,low power loss and temperature rising. This design provides a basic circuit for the accurate driving of large-scale phased arrays,exhibiting prosperous applications in biomedical engineering.

参考文献/References:

[1] 李柏雄. 高保真功率放大器制作教程[M]. 北京:电子工业出版社,2016.
[2]康华光. 电子技术基础[M]. 北京:高等教育出版社,2006.
[3]ZHIVOMIROV H,KOSTOV N. Power parameters and efficiency of class B audio amplifiers in real-world scenario[J]. Radio Engineering,2017,26(1):258-262.
[4]LU C W. A Rail-to-Rail class AB amplifier with an offset cancellation for LCD source drivers[J]. IEEE Journal of Solid-State Circuits,2009,44(2):525-536.
[5]CHEN J Y,WANG H H,MENG L Y. Design of class-D audio-frequency power amplifier based on PWM[J]. Audio Engineering,2016,40(8):33-35.
[6]朱旭东,张爱良,陈殿勇,等. 一种基于高效率智能型600 W D类音频功率放大器设计的防火报警系统[J]. 南京师大学报(自然科学版),2016,39(4):121-125.
[7]李享. 超声换能器驱动电路及其回波接收电路设计分析[J]. 科技与创新,2015(22):79-80.
[8]陈雷,潘松,徐张凡. 基于Class-D功率放大的超声波电动机驱动方案[J]. 微特电机,2019,47(1):49-54.
[9]WANG Y,DRAPER M J,DENLEY S M,et al. Control scheme evaluation for Class-D amplifiers in a power-ultrasonic system[C]//6th IET International Conference on Power Electronics,Machines and Drives. Bristol:IEEE,2012:1-6.
[10]刘姝言,王青东,李禹志,等. 相控超声激发系统的设计[J]. 南京师范大学学报(工程技术版),2016,16(4):8-14.
[11]张耀楠,付强,唐亮. Chirp编码激励用于高频医学超声系统的实验及性能评价[J]. 中国医疗设备,2018,33(1):34-38,56.
[12]KUO C H,LIN S C. A delta-sigma modulator-based class-D amplifier[C]//5th IEEE Global Conference on Consumer Electronics. Kyoto:IEEE,2016:1-2.
[13]GUO L,GE T,CHANG J. Intermodulation distortions of bang-bang control class D amplifiers[J]. IEEE Transactions on Power Electronics,2014,29(12):6604-6614.
[14]PILLONNET G,CELLIER R,ABOUCHI N,et al. An integrated class D audio amplifier based on sliding mode control[C]//2008 IEEE International Conference on Integrated Circuit Design and Technology and Tutorial. Grenoble:IEEE,2008:117-120.
[15]ZHU Z,LIU L,YANG Y,et al. A high efficiency PWM CMOS class-D audio power amplifier[J]. Chinese Journal of Semiconductors,2009,30(2):48-53.
[16]徐顺刚,许建平,曹太强. SPWM逆变电源输出谐波分析及抑制方法研究[J]. 电子科技大学学报,2010,39(5):701-705.
[17]张成蛟,谢少伟. PWM信号的傅里叶级数分析及Matlab仿真[J]. 自动化与仪器仪表,2016(10):195-196.
[18]MAUERER M,KOLAR J W. Distortion minimization for ultra-low THD class-D power amplifiers[J]. CPSS Transactions on Power Electronics and Applications,2018,3(4):324-338.
[19]韩峰,赵志远. H桥结构的D类开关功率放大器损耗分析[J]. 山西电子技术,2013(2):32-34.
[20]韩旭,章康宁,郑海祥,等. 超声换能器的“电感-变压器”阻抗匹配模型研究[J]. 声学技术,2015,34(4):380-384.

备注/Memo

备注/Memo:
收稿日期:2019-11-13.
基金项目:国家自然科学基金项目(11934009、11974187、11604156).
通讯作者:丁鹤平,实验师,研究方向:超声信息处理和人工智能算法. E-mail:dingheping@njnu.edu.cn
更新日期/Last Update: 2020-03-15