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Research on Digital Proportional Amplifier Based on ARM

Author: ZhangDeSheng
Tutor: ZhuShiQiang
School: Zhejiang University
Course: Mechanical and Electronic Engineering
Keywords: ARM processor Digital Proportional amplifier PWM Software instead of hardware Man-machine interface
CLC: TP273
Type: Master's thesis
Year: 2012
Downloads: 45
Quote: 0
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Abstract


With the development of industrial automation , the requirements of the various sectors of the hydraulic control system is also increasing. The digital proportional amplifier with its control of high precision and good performance has become an inevitable development trend of the current proportional amplifier . In this paper, today's domestic and international the proportional amplifier development status , proposed and implemented a control performance , high reliability and stability of the digital proportional amplifier . The amplifier ARM - based controller , using software instead of hardware , instead of the traditional power driver circuit using PWM Anti unloading Dutch power driver circuit in the amplifier stage , through the man-machine interface of the host computer to the next machine parameters read and settings to improve the flexibility of the system , reducing the system power consumption , and increased the steady-state and dynamic performance of the proportional amplifier . This thesis is divided into six chapters , the main contents are as follows : Chapter 1 describes the course of development of the electro-hydraulic proportional and proportional amplifier and research status on the significance of this thesis and main content . Chapter 2 established the working principle of the proportional amplifier as the main controller to the ARM processor , ARM-based digital proportional amplifier overall research program , and elaborated the thesis by the comparison of the ARM processor and microcontroller . Chapter 3 elaborates each hardware module the ARM series LPC2368 chip as the main controller , the completion of the main control module , power module input interface module , power amplifier stage module measuring amplifier circuit modules , communication modules research and development , including the entire hardware system . Chapter 4 use ADS1.2 Visual C integrated development environment , respectively, to complete the the lower machine ARM control procedures , and the development of the man-machine interface of the host computer , and the lower machine ARM program module design and function of human-machine interface of the host computer . Chapter 5 , this thesis proportional amplifier , PI and PID parameter tuning , completed a test rig proportional amplifier experiment . Chapter 6 summarizes the main research work , and put forward the future research work .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system
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