"基于单片机的简易低频信号源设计"

本文介绍了基于单片机的简易低频信号源的设计。随着电子测量和其他产业的快速发展，对信号发生器的需求不断增加，因此对信号发生器的性能和范围也提出了更高的要求。在教育、科研开发、生产工程实践以及其他领域经常需要使用低频信号源。信号发生器作为一种通用的电子设备，在生产、研究、监测和控制、通信等领域都得到了广泛的应用。 本文的主要研究内容是设计一种简易的低频信号源，通过控制键、D/A转换及外围电路实现低频信号的产生功能。设计的信号源能输出三种不同类型的波形，包括三角波、正弦波和方波，可以满足不同领域对信号源的需求。设计采用了单片机作为主要控制核心，具有体积小、功耗低、性能稳定等特点。 关键词：低频信号源、单片机、D/A转换 Abstract This paper introduces the design of a simple low-frequency signal source based on a microcontroller. With the rapid development of electronic measurement and other industries, there is an increasing demand for signal generators, and higher requirements are put forward for their performance and range. Low-frequency signal sources are often needed in education, scientific research and development, and practical production engineering. As a versatile electronic device, signal generators are widely used in production, research, monitoring and control, communication, and other fields. The main research content of this paper is to design a simple low-frequency signal source, and realize the generation of low-frequency signals through control keys, D/A conversion, and peripheral circuits. The designed signal source can output three different types of waveforms, including triangle wave, sine wave, and square wave, which can meet the needs of different fields for signal sources. The design adopts a microcontroller as the main control core, which has the characteristics of small size, low power consumption, and stable performance. Keywords: low-frequency signal source, microcontroller, D/A conversion