A MCU-Based Arbitrary Waveform Generator for SLH Power Amplifier Using DDS Technique

Author

Xiaodong, Liu ; Yanyan, Shi ; Shubo, Li

Author_Institution

Anhui Univ. of Technol., Maanshan

fYear

2007

fDate

Aug. 16 2007-July 18 2007

Abstract

Arbitrary waveform generators are widely used to generate stimuli for under-testing devices, such as telecommunication system, magnetic storage devices and telemetry satellite. The arbitrary waveform generator introduced in this paper is implemented mainly to meet the needs of SLH(switched linear hybrid) power amplifier. It consists of a MCU, a keyboard, a LCD module, a PC interface, and a LPF(low pass filter). Waveforms are generated adopting DDS method. A program run on the PC creates digital representation of the desired waveform and sends it to MCU´s RAM. MCU then converts the digital representation to sampling analog data. The data points are sent to LPF to generate various waveforms. In addition to the creation of traditional waveforms, it can also generate arbitrary waveforms. Laboratory measurements are presented in the paper.

Keywords

direct digital synthesis; low-pass filters; power amplifiers; waveform generators; DDS technique; LCD module; LPF; MCU; PC interface; SLH power amplifier; arbitrary waveform generator; digital representation; keyboard; low pass filter; switched linear hybrid; Artificial satellites; Filters; Keyboards; Laboratories; Magnetic memory; Magnetic separation; Power amplifiers; Sampling methods; Signal generators; Telemetry; DDS; MCU; arbitrary waveform generator;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Measurement and Instruments, 2007. ICEMI '07. 8th International Conference on

Conference_Location

Xi´an

Print_ISBN

978-1-4244-1136-8

Electronic_ISBN

978-1-4244-1136-8

Type

conf

DOI

10.1109/ICEMI.2007.4351288

Filename

4351288