單片機實現(xiàn)數(shù)字式可調(diào)穩(wěn)壓電源.doc
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單片機實現(xiàn)數(shù)字式可調(diào)穩(wěn)壓電源,論文標(biāo)準(zhǔn)word格式排版 43頁摘 要單片機實現(xiàn)的數(shù)字式可調(diào)穩(wěn)壓電源由于原理簡單、穩(wěn)定性好、精度高、成本低、易實現(xiàn)等諸多優(yōu)點而受到越來越廣泛的重視。其性能優(yōu)于傳統(tǒng)的可調(diào)直流穩(wěn)壓電源 ，操作方便 ，非常適合一般教學(xué)和科研使用。本文通過對一個數(shù)控穩(wěn)壓電源系統(tǒng)的設(shè)計，詳細(xì)介紹了at89s52 單片機應(yīng)用中的鍵盤掃描原理、數(shù)碼...
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論文標(biāo)準(zhǔn)WORD格式排版 43頁
摘 要
單片機實現(xiàn)的數(shù)字式可調(diào)穩(wěn)壓電源由于原理簡單、穩(wěn)定性好、精度高、成本低、易實現(xiàn)等諸多優(yōu)點而受到越來越廣泛的重視。其性能優(yōu)于傳統(tǒng)的可調(diào)直流穩(wěn)壓電源 ，操作方便 ，非常適合一般教學(xué)和科研使用。
本文通過對一個數(shù)控穩(wěn)壓電源系統(tǒng)的設(shè)計，詳細(xì)介紹了AT89S52 單片機應(yīng)用中的鍵盤掃描原理、數(shù)碼管動態(tài)顯示原理、定時中斷原理,從而了解單片機相關(guān)指令在各方面的應(yīng)用，同時還介紹了數(shù)模轉(zhuǎn)換芯片DAC0832及存儲芯片24C01的工作原理。系統(tǒng)由模擬電源、控制電路、數(shù)模轉(zhuǎn)換電路、放大電路、顯示電路等部分構(gòu)成，能輸出0V－24V電壓范圍，步進值為0.1V的直流電源，并且具有掉電存儲等功能。
首先，本文將概述數(shù)字式可調(diào)穩(wěn)壓電源的基本原理。
其次，本文將詳述數(shù)字式可調(diào)穩(wěn)壓電源系統(tǒng)的硬件電路設(shè)計。
最后，本文將介紹數(shù)字式可調(diào)穩(wěn)壓電源系統(tǒng)的軟件設(shè)計。
在附錄中，本文還將給出系統(tǒng)的程序清單，供參考之用。
關(guān)鍵詞：數(shù)控，單片機，直流穩(wěn)壓，數(shù)模轉(zhuǎn)換
Abstract
Digital adjustable power supply which is controlled by the MCU（micro controller unit）attracts much attention for its particular advantages,such as simple principle, good stability, high accuracy and low cost, easy to implement and so on[1]. Its performance is superior to the traditional adjustable DC(direct current) power supply. It is convenient for operation and very suitable for the general teaching and research using.
This paper is about an NC（numerical control）regulators power system design. By the design,this paper introduces the keyboard scanning principle ,the digital tube dynamic display principle and the timer interrupt principle in AT89S52 Single-Chip Microcomputer applications , then we can understand the correlation instruction in various application[2].It also introduces work principle of digital-to-analog converter chip DAC0832 and memory chip 24C01. The system includes some important parts : the analog power, the control circuit, the digital-to-analog converter circuit, the amplifier circuit, the display circuit，it provides 0V to a 24V output voltage range, stepping value of 0.1V DC power supply, and the power off and storage function.
Firstly, I will describe the digital adjustable power supply the basic principle.
Secondly,I will detail the digital adjustable power supply system circuit design of the hardware and software design.
Finally, I will introduce the digital adjustable power supply system software design .
At the supplement, I will also give a list of procedures for reference only.
Key words: NC, MCU, DC regulators, Digital-to-analog converter
目 錄
1 緒論 1
1.1研究目的及意義 1
1.2 國內(nèi)外發(fā)展?fàn)顩r 1
1.3研究方法 2
1.4 論文構(gòu)成及研究內(nèi)容 2
2 數(shù)字式可調(diào)穩(wěn)壓電源原理介紹 3
2.1 方案選擇及總體設(shè)計原理介紹 3
2.2 單片機AT89S52介紹 4
2.3 矩陣式鍵盤掃描原理 5
2.4 數(shù)碼管動態(tài)顯示原理 6
2.5 DAC0832及24C01使用介紹 7
3 數(shù)字式可調(diào)穩(wěn)壓電源硬件電路設(shè)計 10
3.1穩(wěn)壓電源數(shù)字部分電路 10
3.1.1 單片機外圍接口電路 10
3.1.2 數(shù)字部分電路PCB設(shè)計 15
3.2 穩(wěn)壓電源模擬部分電路 16
3.2.1 電源部分電路 16
3.2.2 輸出電壓控制單元電路 17
4 數(shù)字式可調(diào)穩(wěn)壓電源軟件設(shè)計 20
4.1系統(tǒng)軟件流程圖 20
4.2 系統(tǒng)程序介紹 22
結(jié)論 26
參考文獻 27
致謝 28
附錄 29
摘 要
單片機實現(xiàn)的數(shù)字式可調(diào)穩(wěn)壓電源由于原理簡單、穩(wěn)定性好、精度高、成本低、易實現(xiàn)等諸多優(yōu)點而受到越來越廣泛的重視。其性能優(yōu)于傳統(tǒng)的可調(diào)直流穩(wěn)壓電源 ，操作方便 ，非常適合一般教學(xué)和科研使用。
本文通過對一個數(shù)控穩(wěn)壓電源系統(tǒng)的設(shè)計，詳細(xì)介紹了AT89S52 單片機應(yīng)用中的鍵盤掃描原理、數(shù)碼管動態(tài)顯示原理、定時中斷原理,從而了解單片機相關(guān)指令在各方面的應(yīng)用，同時還介紹了數(shù)模轉(zhuǎn)換芯片DAC0832及存儲芯片24C01的工作原理。系統(tǒng)由模擬電源、控制電路、數(shù)模轉(zhuǎn)換電路、放大電路、顯示電路等部分構(gòu)成，能輸出0V－24V電壓范圍，步進值為0.1V的直流電源，并且具有掉電存儲等功能。
首先，本文將概述數(shù)字式可調(diào)穩(wěn)壓電源的基本原理。
其次，本文將詳述數(shù)字式可調(diào)穩(wěn)壓電源系統(tǒng)的硬件電路設(shè)計。
最后，本文將介紹數(shù)字式可調(diào)穩(wěn)壓電源系統(tǒng)的軟件設(shè)計。
在附錄中，本文還將給出系統(tǒng)的程序清單，供參考之用。
關(guān)鍵詞：數(shù)控，單片機，直流穩(wěn)壓，數(shù)模轉(zhuǎn)換
Abstract
Digital adjustable power supply which is controlled by the MCU（micro controller unit）attracts much attention for its particular advantages,such as simple principle, good stability, high accuracy and low cost, easy to implement and so on[1]. Its performance is superior to the traditional adjustable DC(direct current) power supply. It is convenient for operation and very suitable for the general teaching and research using.
This paper is about an NC（numerical control）regulators power system design. By the design,this paper introduces the keyboard scanning principle ,the digital tube dynamic display principle and the timer interrupt principle in AT89S52 Single-Chip Microcomputer applications , then we can understand the correlation instruction in various application[2].It also introduces work principle of digital-to-analog converter chip DAC0832 and memory chip 24C01. The system includes some important parts : the analog power, the control circuit, the digital-to-analog converter circuit, the amplifier circuit, the display circuit，it provides 0V to a 24V output voltage range, stepping value of 0.1V DC power supply, and the power off and storage function.
Firstly, I will describe the digital adjustable power supply the basic principle.
Secondly,I will detail the digital adjustable power supply system circuit design of the hardware and software design.
Finally, I will introduce the digital adjustable power supply system software design .
At the supplement, I will also give a list of procedures for reference only.
Key words: NC, MCU, DC regulators, Digital-to-analog converter
目 錄
1 緒論 1
1.1研究目的及意義 1
1.2 國內(nèi)外發(fā)展?fàn)顩r 1
1.3研究方法 2
1.4 論文構(gòu)成及研究內(nèi)容 2
2 數(shù)字式可調(diào)穩(wěn)壓電源原理介紹 3
2.1 方案選擇及總體設(shè)計原理介紹 3
2.2 單片機AT89S52介紹 4
2.3 矩陣式鍵盤掃描原理 5
2.4 數(shù)碼管動態(tài)顯示原理 6
2.5 DAC0832及24C01使用介紹 7
3 數(shù)字式可調(diào)穩(wěn)壓電源硬件電路設(shè)計 10
3.1穩(wěn)壓電源數(shù)字部分電路 10
3.1.1 單片機外圍接口電路 10
3.1.2 數(shù)字部分電路PCB設(shè)計 15
3.2 穩(wěn)壓電源模擬部分電路 16
3.2.1 電源部分電路 16
3.2.2 輸出電壓控制單元電路 17
4 數(shù)字式可調(diào)穩(wěn)壓電源軟件設(shè)計 20
4.1系統(tǒng)軟件流程圖 20
4.2 系統(tǒng)程序介紹 22
結(jié)論 26
參考文獻 27
致謝 28
附錄 29
