幾種三角波發(fā)生器的設(shè)計(jì)及比較

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摘要 信號(hào)的產(chǎn)生是研究信號(hào)的傳輸和處理的第一步，所以信號(hào)發(fā)生器常用于產(chǎn)生被測(cè)電路所需特定參數(shù)的電測(cè)試信號(hào)。在測(cè)試、研究或調(diào)整電子電路及設(shè)備時(shí)，為測(cè)定電路的一些電參量，如測(cè)量頻率響應(yīng)、噪聲系數(shù)，為電壓表定度等，都要求提供符合所定技術(shù)條件的電信號(hào)，以模擬信號(hào)充當(dāng)實(shí)際工作中使用的待測(cè)設(shè)備的激勵(lì)信號(hào)。當(dāng)要求進(jìn)行系統(tǒng)的穩(wěn)態(tài)特性測(cè)量時(shí)，需使用振幅、頻率已知的正弦信號(hào)源。當(dāng)測(cè)試系統(tǒng)的瞬態(tài)特性時(shí)，又需使用前沿時(shí)間、脈沖寬度和重復(fù)周期已知的矩形脈沖源。且要求信號(hào)源輸出信號(hào)的參數(shù)，如頻率、波形、輸出電壓或功率等，能在一定范圍內(nèi)進(jìn)行精確調(diào)整，有很好的穩(wěn)定性，有輸出指示。信號(hào)源可以根據(jù)輸出波形的不同，劃分為正弦波信號(hào)發(fā)生器、矩形脈沖信號(hào)發(fā)生器、函數(shù)信號(hào)發(fā)生器和隨機(jī)信號(hào)發(fā)生器等四大類。正弦信號(hào)是使用最廣泛的測(cè)試信號(hào)。這是因?yàn)楫a(chǎn)生正弦信號(hào)的方法比較簡(jiǎn)單，而且用正弦信號(hào)測(cè)量比較方便。正弦信號(hào)源又可以根據(jù)工作頻率范圍的不同劃分為若干種。
論文詳盡地介紹了三角波發(fā)生器的原理，設(shè)計(jì)過程。并設(shè)計(jì)了幾種不同的三角波發(fā)生電路，配以Multisim仿真波形。通過實(shí)例展示鋸齒波與三角波有哪些區(qū)別，期待著對(duì)于信號(hào)發(fā)生器的理解和應(yīng)用有所幫助。


關(guān)鍵詞：三角波；信號(hào)發(fā)生器；Multisim；仿真設(shè)計(jì)；鋸齒波


Design and comparison of several triangular wave generators
Abstract：Signal generation is the transmission and processing of the first step signal, so the signal generator, it is used to generate electricity test signal needed for a particular parameter of the circuit under test. In the test, research or adjustment of electronic circuits and devices for measuring circuit, some electrical parameters, such as the measurement of frequency response, noise factor for stability, voltage meter, are required to provide electrical signals the technical conditions, the measured device of excitation signal to analog using in practical work. When the requirements of the measurement of the steady-state characteristics of the system, sinusoidal signal source using amplitude, frequency known. Transient characteristic when the test system and the need for rectangular pulse source using leading edge time, pulse width and repetition cycle known. And the parameters of signal source output signal, such as frequency, waveform, the output voltage or power, can be precisely adjusted within a certain range, has good stability, output indicator. The signal source can be based on output waveform is different, is divided into a sine wave signal generator, pulse signal generator, function generator and random signal generator, and other four categories. Sinusoidal signal is the most widely used test signal. This is because the method of generating sine signal is relatively simple, but with the sinusoidal signal measurement is more convenient. Sine signal source can be divided according to different working frequency range for several.
The article introduces the principle of triangle wave generator, the design process. And the design of several triangular wave different circuit, with Multisim simulation waveform. An example is given to demonstrate the saw tooth wave and triangular wave, what is the difference; I hope all of you in the signal generator on the one hand, helps in learning.
Keywords: triangular wave, signal generator, Multisim, simulation design, saw tooth wave


目 錄
第一章 緒 論 1
1.1 三角波發(fā)生器的發(fā)展研究 1
1.1.1 三角波發(fā)生器的發(fā)展概述 1
1.1.2 三角波發(fā)生器的特點(diǎn) 4
1.1.3 我國(guó)信號(hào)發(fā)生器的發(fā)展 4
1.2 論文研究主要內(nèi)容 5
1.2.1 研究對(duì)象—三角波信號(hào)的產(chǎn)生 5
1.2.1 論文主要研究的內(nèi)容 7
第二章 一般三角波的產(chǎn)生及原理分析 8
2.1 引言 8
2.2 一般三角波的產(chǎn)生—比較器 8
2.3 一般三角波的產(chǎn)生---積分器 12
2.4 本章小結(jié) 15
第三章 幾種三角波發(fā)生器的原理及設(shè)計(jì)過程 16
3.1 引言 16
3.2 通過555定時(shí)器設(shè)計(jì)三角波電路 16
3.3 基于單片機(jī)設(shè)計(jì)三角波發(fā)生器 17
3.4 本章小結(jié) 20
第四章 三角波與鋸齒波的聯(lián)系 21
4.1 引言 21
4.2 鋸齒波的應(yīng)用 21
4.3 鋸齒波與三角波的聯(lián)系 22
4.4 本章小結(jié) 23
第五章 仿真結(jié)果分析 24
5.1引言 24
5.2通過555定時(shí)器設(shè)計(jì)的三角波仿真結(jié)果及分析 24
5.3通過8051單片機(jī)設(shè)計(jì)的三角波仿真結(jié)果及分析 27
5.4 三角波與鋸齒波仿真結(jié)果比較 27
5.5本章小結(jié) 29
結(jié) 論 30
致謝 31
參考文獻(xiàn) 32