模电课设直流稳压电源推荐文档

1、In order to ensure normal teachingorder, protecting stude nts 'healthy growth, ensuring thatnational (property) is not lost, to prevent or minimize theoccurrence of safety accidents, follow the "prevent, rescue each other, ensure safety andreduce losses" principle, a ccording to the lo

2、cal conditions, make the management system. 1, theprincipal i s the responsibilityof school safety, schoolsecurity under the leadershipof President security work leading group. The head teacher to the leadership team is responsible for, implementationof the a ccountability system.2, school monthly s

3、tudent knowledge aboutsafety education, education should be diversified i n theform every safety education for students of cla ssesper we ek should be targeted.o carry on emergency issuesdealing with e ducation in General,self-help and m utual rescue knowledge. Emergency calls (such as110, 119, 122,

4、 120, and so on)use common sense i n education. 3, theestablishmentof major areport major accident withinan hourof education; stude nt runand disappearances to report; report of the accident to a written report in triplicate, a correctional ce ntre, a policestation, a township people's Governmen

5、t shallnotconceal t he accident. 4week, teachers are on duty sy stem, establish and improve the leadership values; strengthen the e ducation, management ofteaching activities in schools to ensure normal teaching order; responsible for school safety leadership always maintained close contact and dist

6、rict police stations,canvassing support from thepoli ce station on school safety andhel p. 5, stre ngthening t ea chers ' m oral education, establish a dedicate d love, im proving education quality,observe thestudents ' psychologicalcha nges at any time and take preventive measures, no corpo

7、ral punishment and covert corporal punishment on stude nts, stude nt out of theclassroom, schools may notbe. 6,units or departmentsusestudent Street prparticipating in ot her social work, without approval of the CorrectionalCentre,school principals consent, without organization. Without the approval

8、of relevant departments, may organize stude nts to participate in fire fighting, disaster relief and soon.7, schools should educate students to obey the school rules and regulations,on time,on time home to prevent accidents. 8,school to school inspectionson a regular basis, found hidden in time, and

9、 in severecase s, it is hard to eliminate immediately closed, and reporte d to the local people'sGover nment, education, a nd r ule of law section.9, the school should always check the internal walls, retaining walls, ponds, railings, handra ils, doors,Window s, staircases and a variety of sport

10、s, extracurricular activities, facilitiessuch as fire safety, infrastructure se curity, unsafe facility to immediately repair anddemolition to ensure that teache rs and st ude nts work, learn, live venues and facilities aresong Lin Xiang Liu Jia pi ng primary school fire safety systems to enha nce f

11、ire safety,protectionof public property a nd the life andproperty safety of teachers and stude nts, school fire safety intoday-to-day management, isdeveloping the following fire safety system. 1, strengthen fire safety education of the whol e school. According to t he requirementof theFire Services

12、Act, so that everyone has of keeping fire control safety,protecti ng fire control facilities, fire prevention, reports of fire课程设计任务书半导体直流稳压电源的设计和测式一、 设计目的1、学习直流稳压电源的设计方法；2、研究直流稳压电源的设计方案；3、掌握直流稳压电源的稳压系数和内阻测试方法。二、 设计要求和技术指标1、技术指标：要求电源输出电压为±12V( 或± 9V/ ±5V) ，输入电压为交流220V，最大输出电流为Iomax=500

13、mA，纹波电压 V op-p 5mv,温压系数 Sr5%。2、设计要求：（1） 设计一个能输出± 12V/ ±9V/ ±5V 的直流稳压电源；（2） 要求绘出原理图，并用Protel 画出印制板图；（3） 根据设计要求和技术指标设计好电路，选好元件及参数；（4） 要求绘出原理图，并用Protel 画出印制版图；（5） 在万能板或面包板或PCB 板上制作一台直流稳压电源；（6） 测量直流稳压电源的内阻；（7） 测量直流稳压电源的稳压系数、纹波电压；（8） 撰写设计性报告。三、设计提示1、 设计电路框图如图所示交变整滤稳流压流波压电电电电源器路路路lectricity

14、 lines, equipment inspecti ons, foundhidden in time for rectification, maintenance, and security.9, do not use anopen flame in theclassroom, prohibitbur ning stove, litcandles, mosquito repell ent, no smoking,and banning messy wiring.Without usi ng anyhousehol d appliancesis notallowed.10, live on c

15、ampus faculty members, must lead by example, a nd e ducate families and chil dren ready to fire.11, householduseof gas in schools, to master pr operusage, pay attention to the leak -pr oof, explosion-proof, fireproof, closing valve afteruse toensure security. 12, dining room must bequalified, and an

16、nual testingof pressure vessels, to regularlycheck, the canteen workers must be certified, strictlyby operation operation, gas tankand stovesafety distanceof 1.5 meters, to preve nt accidents.13, the adverse consequencescausedby ignoring fire safety regulations, will bepunished, untilinvestigated fo

17、r legal responelementary school, pine slopes surrounding safety management system 1 teachers and students, the surrounding areaof the scho ol governance covers personal and food hygiene, cultural events and other aspects, integrated governance shall obtain wide support a nd fullcooperation of thecom

18、munity. On t he surrounding environment in schoolsshoul d beclosely monitored. 2, school work at the same time, shouldpay attention to thesafety management of school environment, should take the initiative to contact the district police station, the villageCommittee, CorrectionalCentre,ownshi p gove

19、rnment, business management a nd other departments to do a good job management. 3, teacheron duty with the exce ption of inspections in schools, should also pay attention toenvironmental inspectionsnear the campus, found that the jobless migrants from rural areas, for example, harassment of students

20、 and a variety of acci dents,according to different situations reportedschoolofficialsor the politimely manner, to protect thesafety of students. 4,every day beforeschool, teachers remind stude nts, pay attention to traffic safety. 5, should educate students to respect social ethics, and various reg

21、ulations, maintainingpublicorder, and fight the bad guys, and grasp the correct ways and means of maintaining and improving students 'self-care ability. 6, the establishme nt of emergency rescue teams of teachers in schools, onhigh alert and deployed. Song Li n Xiang Li u Jia ping elementary sch

22、oolMarch 2016song Li n Xiang Li u Jia ping primary school teachers andstudents organizationsout of safety management system organization activities between tea cher s and students, to drawup aprecise pla n and security measures must be signed by theschoolofficials to review theprogramme of activitie

23、s agreedupon Correctional Center agreed to implement.Organization to thave a specific responsibility, pay attention to thepersons age , physical match. Route 3, activities, locati on, field surveysshoul d be carried out in advance. 4, activities for the means of transport should explain the situatio

24、n to t he school tocomply with vehicle, safety requirements, before the line for repairs. 5, each activity musthave security,emergency response plan for acci dents. 6, pi cni cs, hiki ng, pi cnic to pay attention to fire prevention, foodpoisoning, prevention of fall accidents 7, the activitiesnear t

25、he rivers, reservoirs, no measures or do not meet the security requirementsof the Organization and not let stude nts into the waterIn order to ensure normal teachingorder, protecting stude nts 'healthy growth, ensuring thatnational (property) is not lost, to prevent or minimize theoccurrence of

26、safety accidents, follow the "prevent, rescue each other, ensure safety and reduce losses" principle, a ccording to the local conditions, make the management system. 1, theprincipal i s the responsibilityof school safety, schoolsecurity under the leadershipof President security work leadin

27、g group. The head teacher to the leadership team is responsible for, implementationof the a ccount ability system.2, school monthly student knowledge aboutsafety education, educationshould be diversified i n theform every safety education for students of cla ssesper we ek should be targeted.o carry

28、on emergency issuesdealing with e ducation in General,self-help and m utual rescue knowledge. Emergency calls (such as110, 119, 122, 120, and so on)use common sense i n education. 3, theestablishmentof major acci dent re portingsystem. School studentreport major accident withinan hourof education; s

29、tude nt runand disappearances to report; report of the accident to a written report in triplicate, a correctional ce ntre, a policestation, a township people's Government shallnotconceal t he accident. 4week, teachers are on duty sy stem, establish and improve the leadership values; strengthen t

30、he e ducation, management of teaching activities in schools to ensure normal teaching order; responsible for school safety leadership always maintained close contact and district police stations,canvassing support from thepoli ce station on school safety andhel p. 5, stre ngthening tea chers ' m

31、 oral education, establish a dedicated love, improving education quality,observe thestudents ' psychologicalcha nges at any time and take preventive measures, no corporal punishment and covert corporal punishment on stude nts, stude nt out of the classroom, schools may notbe. 6,unit s or departm

32、entsuse student Street propagandaor participarticipating in ot her social work, without approval of the CorrectionalCentre,school principals consent, without organization. Without the approvalof relevant departments, may organize stude nts to participate in fire fighting, disaster relief and soon. 7

33、, schools should educate students to obey the schoolrules and regulations,on time,on time home to prevent accidents. 8,school to school inspectionson a regular basis, found hidden in time, and in severecase s, it is hard to eliminate immediately closed, a nd reporte d to the local people'sGover

34、nment, education, and r ule of law section.9, the school should always check the internal walls, retaining walls, ponds, railings, handrails, doors,Window s, staircases and a variety of sports, extracurricular activities, facilitiessuch as fire safety, infrastructure se curity, unsafe facility to im

35、mediately repair anddemolition toensure that teachers and st ude nts work, learn, live vesong Lin Xiang Liu Jia pi ng primary school fire safety systems to enha nce fire safety,protectionof public property a nd the life andproperty safety of teachers and stude nts, school fire safety intoday-to-day

36、management, isdeveloping the following fire safety system. 1, strengthen fire safety education of the whole school. According to t he requirementsof theFire Services Act, so that everyone has of keeping fire control safety,protecting fire control facilities, fire prevention, reports of fire稳压电路若使用分离

37、元件要有取样、放大、比较和调整四个环节，晶体管选用 3DD 或 3DG 等型号；若用集成电路选 78XX 和 79XX 稳压器。测量稳压系数 :在负载电流为最大时，分别测得输入交流比 220V 增大和减小 1 0%的输出 Vo，并将其中最大一个代入公式计算 Sr，当负载不变时， Sr= VoVI/ VI Vo.测量内阻 : 在输入交流为 220V，分别测得负载电流为0 及最大值时的 Vo，Ro=Vo/ I I .纹波电压测量 : 叠加在输出电压上的交流分量， 一般为 mV级。可将其放大后，用示波器观测其峰峰值 Vop-p ; 用可用交流毫伏表测量其有效值 Vo, 由于纹波电压不是正弦波，所以用

38、有效值衡量存在一定误差。2、 实验仪器设备自耦变压器一台、数字万用表、数字电压表、变压器、面包板或万能板、智能电工实验台、示波器3、 设计用主要器件：变压器、整流二极管、集成稳压器、电容、电阻若干4、 参考书：电子线路设计·实验·测试华中科技大学出版社模拟电子技术基础高等教育出版社四、 设计报告要求1、 选定设计方案；2、 拟出设计步骤，画出电路、分析并计算主要元件参数值；3、 列出测试数据表格；4、 测试总结。五、 设计总结1、 总结直流稳压电源的设计方法和运用到的主要知识点，对设计方案进行比较。2、 总结直流稳压电源的主要参数的测试方法。lectricity lines

39、, e qui pment inspections, found hidden in time for rectification, maintenance, and security. 9, do not use anope n flame in theclassroom, pr ohi bit burning stove, lit candles, mosquito repellent,no sm oking, andbanning messy wiring.Withoutusing any household applia nce s is not allowed.10, live on

40、 campus faculty members, must lead by example, and educate families and children ready to fire. 11, householduse of gas in schools, to masterproper usage, pay attention to the leak-pr oof, explosion-proof, fireproof, closing valve after use to ensure security.12, di ning room must be qualified, and

41、annual testing of pressure vessels, to regularly check, thecantee n workers must be certified, strictlyby operationoperati on, gas tank and stove safety distance of 1.5 meters, toprevent accidents. 13, the adverse consequences causedby ignoring fire safety regulations, willbe punished, until investi

42、gated for legal responsibility. Song Li n Xiang Liu Jia ping elementary school March 2016 Xia ng Liu Jia pingelementary school, pine sl opes surr oundi ng safety management system 1 teachers and st ude nts, the surrounding area of the school governance covers personal and food hygiene, cultural even

43、ts and other aspe cts, integrated governance shallobtain wide support and fullcooperation of the community. On the surrounding environment in schools shouldbe closely monitored. 2, school work at the same time, shouldpay attention to the safety management of school environment,shoul d take the initi

44、ative tocontact thedistrict police station, the village Committee, Correctional Centre,ow nship g overnment,busine ss management andotherdepartments to do a good job management. 3, teacher on duty with the exception of inspections in schools, should alsopay attention to environmental inspections nea

45、r thecampus, found that the jobless migrants from rural areas, for example,harassmentof stude nts and a variety of accidents, accor ding todifferent situations reported school officialsor the police station in atimely manner, toprote ct the safety of students. 4, every day before school, teachers re

46、mind students, pay attention to traffic safety. 5, should educate students to respect social ethics, and various regulations, maintaining public order, and fight thebad guy s, and grasp the correct ways and means of maintaining and improving students ' self-care abilit y. 6, the establishmentof

47、emergency rescue teamsof teachers in schools, on high alert and deployed. SongLin Xiang Liu Jia ping eleme ntary school March 2016song LinXia ng Liu Jiaping primary school teachers and studentsorganizationsoutof safetymanagement system organization activities between tea cher s andstudents, to draw

48、up a precise plan a nd security measures must be signed by the schoolofficials to review the programme of activities agreed upon CorrectionalCenter agreed to implement. Orga nization to the field relati vely far or activities require approval by the Deputy Director of the Education Bureau incharge o

49、f security. 2, ea ch activity shoul dhave a specific responsibility, pay attention to thepersons age , physical match. Route 3, activities, location, fiel d surveysshoul d be carried out in advance. 4, activities for the means of transport should explain the situation to the school tocomply with veh

50、icle, safety requirements, before the line for repairs. 5, each activity musthave security,emergency response plan for accidents. 6, picni cs,hiki ng, pi cnic to pay attention to fire prevention, foodpoi soning, preventi on of fall accidents 7, the activitiesnear the rivers, reservoirs, no measures

51、or do not meet the security requirementsof theOrganization and not let stude nts into the water2In order to ensure normal teachingorder, protecting st udents ' healthy growth, e nsuring thatnational (property) is not lost, to prevent or minimize the occurrence of safety accidents, follow the &qu

52、ot;prevent, rescue each other, ensure safety and reduce losses" princi ple, a ccording to the local conditions, make the management system. 1, the principal is the responsibility of school safety, school security under the leadershi p of Presidentsecurity work leading group. T he head teacher to the leadershi p team is responsible for, implementationof the accountability system. 2, school monthly student knowledge about safety education, e ducation should be div