基于DDS的微功率超声波电源  

Micro-power ultrasonic power based on DDS

作　　者：屈百达 季建勋 

机构地区：[1]江南大学轻工过程先进控制教育部重点实验室,江苏无锡214122

出　　处：《电源技术》2013年第12期2203-2205,共3页Chinese Journal of Power Sources

基　　金：高等学校学科创新引智计划(B12018)

摘　　要：针对传统超声波电源结构复杂、主要集中在大功率方面的问题,设计了一种基于频率合成技术的新型微功率超声波电源,方案包括信号源的产生、滤波和功率放大等方面。设计的电源具有极高频率精度、较宽的频率调节范围和电路简单等特点。以单片机作为主控芯片,可根据需求调整输出频率。实验结果表明该系统达到了设计要求并填补了国内生物用超声波电源的空白。In view of the complicated traditional ultrasonic power structure, the large power problems were concentrated based on the design of a frequency synthesis technology of novel micro ultrasonic power supply, including the signal source, power amplification, filtering and so on. The designed power source has simple circuit with high frequency precision and wide frequency range. Taking microcontroUer as the main control chip, the output frequency can be adjusted according to the requirements. The experiment results show that the system has reached the design requirement and filled the domestic blank biological ultrasonic power supply.

关 键 词：超声波电源 直接数字频率合成 功率放大 

分 类 号：TM93[电气工程—电力电子与电力传动]