摘 要社会在发展，电子技术领域中的各项技术也在不断的发展之中，其中关键技术的逆变技术当前也发展的非常迅速，在各类行业中都得到了使用。以往对逆变电源的控制几乎是为传统的模拟电路，这种电路越来越体现出其自身的局限性，如电路太复杂、较为混乱，导致电路的抗干扰性能不足等，随着数字技术的发展，在逆变电源中的使用已经得到验证，因为这种方式构建不复杂，已经变成了该领域的一个发展趋势。86366

本文对逆变电源的硬件电路开展设计与了解，在数字控制的基础之上对单片机对逆变电源进行控制，本文在一开始对高频连正弦波的数字控制技术看展了学习与深入理解，并对他们的控制逻辑、控制策略进行概述，之后制定了本研究的架构，设计了单向电源高频链的反馈及逆变系统，并且根源PIC16F73单片机生成SPWM驱动信号。

我们进行升压电路设计时，采用直推挽升压电路，先简介了其实现原理，之后设置相应参数的数据，在数据设计完成后，进行了反馈电路的设计，本文受制于时间的限制，在高频变压器这一块生没有精确、细致地设置，仅仅设计了其所需要参数。

在晋升DC-AC逆变器系统设计时，对该系统的软硬件进行了设计，其中硬件包括输出滤波器、采样电路以及过流保护电路，软件是以单片机（PIC16F73）来闭环反馈数字PID以及产生Sinusoidal PWM驱动信号。

毕业论文关键词：逆变电源、SPWM驱动信号、数字PID 

Abstract Inverter technology as a key technology in the field of electronic technology, developing very rapidly and has been widely used in all kinds of industry。 Control of the inverter power supply is almost past for the traditional analog circuit, the circuit is more and more reflects its own limitations, such as the circuit is too complex, more confusion, lead to insufficient anti-interference performance of the circuit, etc。, with the development of digital technology, the use of inverter power supply has been verified, because this way to build complex, has become a development trend of this field。

This article for the history, current situation and development of inverter technology has carried out a detailed overview of, and in the chain of high frequency inverter system overview, the characteristic and difference between aspect and control strategy of this a few inverter system carried on the thorough discussion, on your system after the comprehensive analysis, formed the design framework of the present study, build the hardware circuit of inverter power supply design, construction of feedback system in the PIC16F73 models of single chip microcomputer, to generate SPWM drive signal, choice of unidirectional voltage source inverter system, high-frequency chain system, in general, the main result of this study are as follows:

1。 Distinguish between the former push-pull step-up converter circuit, and the distinction between circuit are studied。

2。 After the analysis and design level DC - AC main circuit, through the combination of software and hardware, building the digital PID feedback control, and on the basis of feedback control to realize the SPWM signal output, and collective circuit design。

Because of the limitation of time, capacity, etc, in general, this paper build the hardware system and the following

1。 In this paper, there is no analysis software in the design of part design and optimization, makes the performance of the system of the present study。

2。 On the choice of digital PID control, theoretically, knocked down, because there is no unreasonable on the choice。

Keywords: Inverter power supply; SPWM; High frequency; Digital PID control

目 录

第一章 绪论1

1。1 概述1