多波形信号发生器控制与驱动电___路设计大学生毕业论文（设计）.doc

摘要 多波形信号发生器是工业生产、产品开发、科学研究等领域必不可少的工具，它产生的三角波、方波和正弦波是常用的基本测试信号。根据用途不同，有产生三种或多种波形的函数发生器，其电路中使用的器件可以是分离器件，也可以是集成器件，目前各类学校广泛使用的是标准产品，虽然功能齐全、性能指标高，但价格较贵。传统的函数信号波形发生器通常由晶体管、运放IC等分立元件制成。其发出的信号的稳定性，信号的失真度，频率的范围大小，都不是很理想。于此相比，基于集成芯片的MAX038多波形函数信号发生器具有信号输出频率高、波形稳定、失真小、可控性强等特点。利用信号进行仪器的控制已是自动控制理论中的一个重要的手段。那么，一个幅度、频率、稳定性、占空比以及波形可调的信号发生器的设计和完成更具有实际价值。本次设计是使用集成芯片MAX038为主要器件产生信号，通过外部电路控制产生信号的频率。最终达到频率一定范围可调的多钟波形信号发生器。 关键词：信号发生器；频率；MAX038；集成 Abstract many waveform signal generator is industrial production, product development, the necessary tools for scientific research and other fields, it produces the triangle wave, square wave and sine wave is a common basic testing signals. According to different purposes, there are three or more waveforms of function generator, the circuit device can be used in the separation device, also can be integrated device, is widely used in the is a standard product, although the function is all ready, high performance, but the price is more expensive. Traditional function of the signal waveform generator is usually made from discrete components such as transistor, the op-amp IC. The stability of the signals, the distortion of the signal, the range of frequencies size, is not very ideal. Based on integrated chip MAX038, compared to the several signal waveform function signal generator with high output frequency, waveform is stable, small distortion and strong controllability, etc. Of the instrument by using the signal control is an important technique in the automatic control theory. So, an amplitude, frequency, stability, adjustable duty ratio and waveform signal generator design and has more practical value. This design is to use an integrated chip MAX038 as the main device signal, through an external circuit controls the frequency of the signal. Eventually reached more than a range of adjustable frequency clock waveform signal generator Keywords: Signal，Generator，Frequency，MAX038，Integration 目 录 第一章 绪论 1 1.1概述 1 1.2信号发生器的发展现状 1