Xue-wei YANG（杨学蔚）1， Mao-fa GONG （公茂法）2，Zheng GONG （公政）2， Yu-lei LIANG（梁育雷）2, Bao-yong LI（李保勇）2
1. Technology Department, Weihai Botong Thermal Power CO., LTD, W eihai 264200， China；2. College of Information and Electrical Engineering， Shandong University of Sc ience and Technology， Qingdao 266510， China
Abstract-Direct Digital Synthesis (DDS) chip was used in the design of program controlled power source in this paper. With the accurate cont rol of Dual DDS chips by Micro Controller Unit (MCU), filter and power amplifier , this power source can generate voltage and current output with variable freque ncy, amplitude and phase. There are several advantages of this power source such as high power, high accuracy, output stable, light and convenient.
Key words-DDS; phase control; power source; program-co ntrolled
Manuscript Number: 1674-8042(2011)01-0075-03
dio: 10.3969/j.issn.1674-8042.2011.01.17
References
[1]Chen Shangsong, 2005. Electronic Measurement and Instruments. Publis hing House Of Electronics Industry, p.73.
[2]Analog Device Inc. CMOS 180MHz DDS/DAC SynthesizerAD9851．1999 ，p.1.
[3]Lin Xiaoyu, 2004. Design of frequency converter based on DDS technol ogy, Electrotechnical Journal, 12(1): 3.
[4]Zhang Youfeng, 1997. AC current, voltage, power standard source, Measurement Technology, (7): 3.
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