北京生物醫(yī)學(xué)工程

數(shù)字化全景齒科成像系統(tǒng)中電源系統(tǒng)的設(shè)計

Design of power supply system for digital panoramic dental imaging system

作者：于苒陸建榮劉有軍

單位：北京工業(yè)大學(xué)生命科學(xué)與生物工程學(xué)院(北京100124)

關(guān)鍵詞： TDI CCD；電源；AC/DC模塊；穩(wěn)壓器

分類號：

出版年·卷·期（頁碼）：2012·31·6（611-615）

摘要：

目的不同的數(shù)字化全景齒科成像系統(tǒng)對電源的要求不盡相同，難以規(guī)范化、產(chǎn)品化，故需結(jié)合其自
身特征設(shè)計專用的電源系統(tǒng)。方法首先對數(shù)字化成像系統(tǒng)所需供電電壓及其硬件電路的物理結(jié)構(gòu)進(jìn)行分
析，然后通過分析AC/DC電源模塊、線性穩(wěn)壓器和開關(guān)型穩(wěn)壓器的種類、輸出紋波、功耗及轉(zhuǎn)換效率等工
作特性及應(yīng)用范圍，提出一種開關(guān)型穩(wěn)壓電源和線性穩(wěn)壓電源相結(jié)合的電源系統(tǒng)設(shè)計方案。結(jié)果通過
AC/DC電源模塊、低壓差線性穩(wěn)壓器(low dropout regulator,LDO)和開關(guān)型穩(wěn)壓器實(shí)現(xiàn)了電源的功耗低、
發(fā)熱小、電磁干擾輕、紋波小、重量輕和體積小的設(shè)計目標(biāo)。結(jié)論提高了數(shù)字化全景齒科成像系統(tǒng)工作
的穩(wěn)定性及系統(tǒng)的整體性能。

Objective The design of power supply system for digital panoramic dental imaging
system is special to meet the different requirements of the power supply systems.Methods We
analyzed the needed voltages and hardware circuits’ physical structure of digital panoramic
dental imaging system firstly.After analyzing the performance characteristic — such as
class,ripple,consumption and conversion efficiency — as well as the application areas,this
paper provided a design proposal of power supply system which combined switching mode
voltage stabilizer with linear voltage stabilizer.Results The design targets,such as low
consumption,low heat,light electro-magnetic interference (EMI),low ripple,light weight and
small volume,were achieved by the use of AC/DC module,low dropout regulator (LDO) and
switching mode voltage regulator.Conclusions The stability and the whole performance of
digital panoramic dental imaging system were improved.

參考文獻(xiàn)：

［1］周望.CCD數(shù)字相機(jī)的電源系統(tǒng)設(shè)計［J］.電子技術(shù)應(yīng)用,2008，(2):60-65.
Zhou Wang.Design for power supply system of a CCD digital camera［J］.Application of
Electronic Technique,2008，(2):60-65.
［2］楊碧石.電源設(shè)備中AC/DC和DC/AC變換電路［J］.南通職業(yè)大學(xué)學(xué)報,2001,15(1):15-18.
Yang Bishi.AC/DC and DC/AC converty circuits in power supply equipment［J］.Journal of
Nantong Vocational College,2001,15(1):15-18.
［3］張占松.開關(guān)電源的原理與設(shè)計［M］.北京:電子工業(yè)出版社,2005.
Zhang Zhansong.The Principle and Design of Switch Power Supply ［M］.Beijing:Electronic
Industry Press,2005.
［4］沙占友.單片開關(guān)電源的發(fā)展及其應(yīng)用［J］.電子技術(shù)應(yīng)用,2000,26(1):4-6.
Sha Zhanyou.The development and application of single piece of switch power supply
［J］.Application of Electronic Technology,2000,26(1):4-6.
［5］張倩.基于TDI CCD齒科全景數(shù)字化成像系統(tǒng)的硬件設(shè)計［D］.北京:北京工業(yè)大學(xué)，2010.
Zhang Qian.Hardware design of dental panoramic digital radiography system based on TDI-CCD［
D］.Beijing：Beijing University of Technology,2010.
［6］Cowell A.性能接近線性穩(wěn)壓器的下一代移動DC-DC轉(zhuǎn)換器［J］.電子產(chǎn)品世界,2007，(5):111-113.
Cowell A.Next generation mobile DC-DC converters that appear like linear regulators
［J］.Electronic Engineering & Product World,2007，(5):111-113.
［7］張文成.印制電路板設(shè)計的電磁兼容性分析［J］.電子工藝技術(shù),2009,30(40):210-213.
Zhang Wencheng.Analysis of electromagnetic compatibility for design of printed circuit board
［J］.Electronics Process Technology,2009,30(40):210-213.
［8］劉鉆,呂霆.分布式系統(tǒng)中的電磁兼容設(shè)計［J］.電子工藝技術(shù),2006,27(4):221- 223.
Liu Zuan,Lv Ting.EMC in distribute system［J］.Electronics Process Technology,2006,27
(4):221- 223.

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