本文選題：全集成式 + 低壓差線性穩(wěn)壓器　； 參考：《華南理工大學(xué)》2014年碩士論文

【摘要】：由于直流無刷電機與普通有刷直流電機或感應(yīng)電機相比，具有可控性強、調(diào)速范圍寬、轉(zhuǎn)子損耗低、熱損耗低，效率高、成本低等優(yōu)點，因此，單相直流無刷電機已在家用和工業(yè)用的中小型電機產(chǎn)品中得到廣泛應(yīng)用。近年來，國際上對單相直流無刷電機控制芯片的研究越來越重視，而全集成式的單相直流無刷電機控制芯片的研究與設(shè)計已經(jīng)占據(jù)主流地位。 論文研究與設(shè)計了全集成式單相直流無刷電機控制芯片，主要工作內(nèi)容包括： 1、設(shè)計控制芯片的電路系統(tǒng)，重點設(shè)計了帶隙基準(zhǔn)源、6V輸出的低壓差線性穩(wěn)壓器、1.8V輸出的低壓差線性穩(wěn)壓器、占空比調(diào)節(jié)電路模塊、內(nèi)置功率MOS管驅(qū)動電路模塊。電路仿真結(jié)果表明，帶隙基準(zhǔn)源輸出1.22V，電源抑制比為70.6dB；6V和1.8V低壓差線性穩(wěn)壓器輸出電壓分別為6V和1.8V，電源抑制比分別為63.7dB和67dB；占空比調(diào)節(jié)電路模塊載波頻率為25KHz，，當(dāng)輸入控制電壓從0.75V變化到3.75V時，輸出信號的占空比從100%線性變化到0%。 2、采用Global Foundry180nm BCD工藝，通過將高壓器件DMOS與低壓CMOS電路集成在一塊硅片上的方法，完成芯片的版圖設(shè)計和驗證。芯片總面積1476um1450um，LDO模塊面積396.315um622.42um，DUTM模塊面積94.745um415.295um，DRIVER模塊面積783.885um1380.34um。對實際芯片的測試結(jié)果表明，芯片的工作電源電壓12V，工作電流為0.5A；LDO模塊輸出穩(wěn)定電壓6V和1.8V；當(dāng)輸入控制電壓從0.75V變化到3.75V時，電機轉(zhuǎn)速從4660rpm線性變化到0rpm。芯片實現(xiàn)了模擬電壓線性調(diào)節(jié)電機轉(zhuǎn)速的功能。
[Abstract]:Compared with ordinary brushless DC motor or induction motor, DC brushless motor has many advantages, such as strong controllability, wide speed range, low rotor loss, low heat loss, high efficiency and low cost. Single-phase DC brushless motor has been widely used in domestic and industrial small-and medium-sized motor products. In recent years, more and more attention has been paid to the research of single-phase DC brushless motor control chip in the world, and the research and design of fully integrated single-phase DC brushless motor control chip has occupied the mainstream position. This paper studies and designs a fully integrated single-phase brushless DC motor control chip. The main work includes: 1. The circuit system of the control chip is designed. The low voltage differential linear voltage regulator with low voltage difference of 1.8 V, the duty cycle adjusting circuit module and the driving circuit module of the built-in power MOS transistor are designed. The circuit simulation results show that, The output voltage of the bandgap reference source is 1.22V, the power rejection ratio is 70.6 dB 6V, and the output voltage of 1.8V low voltage difference linear regulator is 6V and 1.8V, respectively, and the power rejection ratio is 63.7dB and 67dB.The carrier frequency of the duty cycle regulating circuit module is 25kHz, when the input control voltage changes from 0.75V to 3.75V, The duty cycle of the output signal varies linearly from 100% to 0%. 2. Using Global Foundry180nm BCD technology, the layout design and verification of the chip are completed by integrating the high-voltage device DMOS and the low-voltage CMOS circuit on a single silicon chip. The total area of LDO module is 1476um 1450um. the area of LDO module is 396.315um622.42umDUTM module area 94.745um415.295umper module area 783.885um1380.34um. The test results show that the working voltage of the chip is 12V, the output voltage of 0.5ALDO module is 6V and 1.8V, and when the input control voltage changes from 0.75V to 3.75V, the speed of the motor changes linearly from 4660rpm to 0rpm. The chip realizes the function of analog voltage linear regulation of motor speed.
【學(xué)位授予單位】：華南理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM33

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