Design and Analysis of a Low Cost Wave Generator Based on Direct Digital Synthesis

Signal generators are widely used in experimental courses of universities. However, most of the commercial tests signal generators are expensive and bulky. In addition, a majority of them are in a fixed working mode with many little-used signals. In order to improve this situation, a small sized and...

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Main Authors: Jian Qi, Qun Sun, Xiaoliang Wu, Chong Wang, Linlin Chen
Format: Article
Language:English
Published: Wiley 2015-01-01
Series:Journal of Electrical and Computer Engineering
Online Access:http://dx.doi.org/10.1155/2015/367302
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author Jian Qi
Qun Sun
Xiaoliang Wu
Chong Wang
Linlin Chen
author_facet Jian Qi
Qun Sun
Xiaoliang Wu
Chong Wang
Linlin Chen
author_sort Jian Qi
collection DOAJ
description Signal generators are widely used in experimental courses of universities. However, most of the commercial tests signal generators are expensive and bulky. In addition, a majority of them are in a fixed working mode with many little-used signals. In order to improve this situation, a small sized and highly accurate economic signal generator based on DDS technology has been developed, which is capable of providing wave signals commonly used in experiments. Firstly, it is introduced the basic principles of DDS and is determined the overall scheme of the signal generator. Then, it proposes a design of the hardware, which include power supply module, display module, keyboard module, waveform generating module based on DDS chip, and the minimum system module based on C8051F010. The signal generator was designed to output sine and square waveforms, and the other achieved performances included the frequency range 0.1 Hz–12.5 MHz, the frequency resolution 0.05 Hz–0.1 Hz, the output amplitude 1.0–4.5 V, the frequency accuracy Kfmin=94.12% and Kfmax=99.99%, and the signal distortion RTHDmin=0.638% and RTHDmax=11.67%.
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institution Kabale University
issn 2090-0147
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publishDate 2015-01-01
publisher Wiley
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series Journal of Electrical and Computer Engineering
spelling doaj-art-b587fa98ec3d45cba7070ad0e6d93cdc2025-02-03T01:31:18ZengWileyJournal of Electrical and Computer Engineering2090-01472090-01552015-01-01201510.1155/2015/367302367302Design and Analysis of a Low Cost Wave Generator Based on Direct Digital SynthesisJian Qi0Qun Sun1Xiaoliang Wu2Chong Wang3Linlin Chen4School of Mechanical & Automotive Engineering, Liaocheng University, Liaocheng 252059, ChinaSchool of Mechanical & Automotive Engineering, Liaocheng University, Liaocheng 252059, ChinaDepartment of Medical Equipment, Liaocheng People’s Hospital, Liaocheng 252000, ChinaSchool of Mechanical & Automotive Engineering, Liaocheng University, Liaocheng 252059, ChinaSchool of Mechanical & Automotive Engineering, Liaocheng University, Liaocheng 252059, ChinaSignal generators are widely used in experimental courses of universities. However, most of the commercial tests signal generators are expensive and bulky. In addition, a majority of them are in a fixed working mode with many little-used signals. In order to improve this situation, a small sized and highly accurate economic signal generator based on DDS technology has been developed, which is capable of providing wave signals commonly used in experiments. Firstly, it is introduced the basic principles of DDS and is determined the overall scheme of the signal generator. Then, it proposes a design of the hardware, which include power supply module, display module, keyboard module, waveform generating module based on DDS chip, and the minimum system module based on C8051F010. The signal generator was designed to output sine and square waveforms, and the other achieved performances included the frequency range 0.1 Hz–12.5 MHz, the frequency resolution 0.05 Hz–0.1 Hz, the output amplitude 1.0–4.5 V, the frequency accuracy Kfmin=94.12% and Kfmax=99.99%, and the signal distortion RTHDmin=0.638% and RTHDmax=11.67%.http://dx.doi.org/10.1155/2015/367302
spellingShingle Jian Qi
Qun Sun
Xiaoliang Wu
Chong Wang
Linlin Chen
Design and Analysis of a Low Cost Wave Generator Based on Direct Digital Synthesis
Journal of Electrical and Computer Engineering
title Design and Analysis of a Low Cost Wave Generator Based on Direct Digital Synthesis
title_full Design and Analysis of a Low Cost Wave Generator Based on Direct Digital Synthesis
title_fullStr Design and Analysis of a Low Cost Wave Generator Based on Direct Digital Synthesis
title_full_unstemmed Design and Analysis of a Low Cost Wave Generator Based on Direct Digital Synthesis
title_short Design and Analysis of a Low Cost Wave Generator Based on Direct Digital Synthesis
title_sort design and analysis of a low cost wave generator based on direct digital synthesis
url http://dx.doi.org/10.1155/2015/367302
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AT xiaoliangwu designandanalysisofalowcostwavegeneratorbasedondirectdigitalsynthesis
AT chongwang designandanalysisofalowcostwavegeneratorbasedondirectdigitalsynthesis
AT linlinchen designandanalysisofalowcostwavegeneratorbasedondirectdigitalsynthesis