A Study of Circuit Design in a Smart Power Module 李宗寬、陳勝利 ; 陳勛祥
E-mail: 9223683@mail.dyu.edu.tw
ABSTRACT
The goal of this thesis is to design a three phase BDCM driving IC and reduce system cost by using a CMOS process. The
advantage of CMOS process is low cost, low power dissipation and high integrated density. The rotor position feedback Hall signal amplifier, driving signal generator, FVC ( Frequency to Voltage Converter ) and PWM ( Pulse Width Modulator) building speeding control system and over temperature protecting block were built in this system. Eventually, a SOC or mixed-signal IC will be accomplished, in which the analog circuit and digital circuit were included in the same chip. All the system function blocks in this thesis have been simulated by the transistor level simulation EDA tools. And, the simulation and testing results of this smart power module will discuss latter.
Keywords : Three_Phase BDCM Driving System ; CMOS ; Mixed-Signal IC ; SOC Table of Contents
第一章 序論 1.1 簡介...1 1.2 研究動機...1 1.3 論文架構...2 第二章 直流無刷馬達簡介 2.1 直流無刷馬達的特徵...3 2.2 直流無刷馬達的分類...5 2.3 直流無刷馬達的工 作原理...9 2.4 直流無刷馬達轉子位置檢測方式...11 第三章 直流無刷馬達驅動電路原理 3.1 六步方波直流 驅動原理...14 3.2 轉子位置與霍爾訊號的關係...16 3.3 馬達轉速回授方式...18 3.4 馬達轉速控 制方式...21 3.5 提高馬達驅動效率的脈波調變(PWM)控制法....24 3.6 馬達驅動控制積體電路化...27 第 四章 驅動晶片之設計與模擬 4.1 驅動晶片整體架構...30 4.2 霍爾運算放大器之設計與模擬...31 4.3 數位 換相電路設計...36 4.4 頻率電壓轉換器(FVC)設計...41 4.5 誤差放大器與脈波寬度調變電路設計...46 4.6 功率元件過溫保護電路設計...52 4.7 晶片實測結果...57 第五章 結論...65 參考 文獻...67
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