桥振荡器的振荡频率等于_______，其起振条件为_______。16.(38)10=(______
qiao zhen dang qi de zhen dang pin lv deng yu _______ qi qi zhen tiao jian wei _______ 16.(38)10=(______
号幅度越小，失真就_______；乙类功率放大器输入信号幅度越小，失真将_______。15.文氏电
hao fu du yue xiao shi zhen jiu _______ yi lei gong lv fang da qi shu ru xin hao fu du yue xiao shi zhen jiang _______ 15. wen shi dian
是在本征半导体中掺入_______价元素构成的，其多数载流子是_______。14.甲类放大器输入信
shi zai ben zheng ban dao ti zhong chan ru _______ jia yuan su gou cheng de qi duo shu zai liu zi shi _______ 14. jia lei fang da qi shu ru xin
大反向电压为()。a.u2b.u2c.u2d.u2二、填空题(每小题2分，共16分)13.n型半导体
da fan xiang dian ya wei () a.u2b.u2c.u2d.u2 er tian kong ti ( mei xiao ti 2 fen gong 16 fen )13.n xing ban dao ti
.gtrd. igbt12.单相桥式相控整流电路的输入电压有效值为u2，则电路中每只晶闸管所承受的最
.gtrd. igbt12. dan xiang qiao shi xiang kong zheng liu dian lu de shu ru dian ya you xiao zhi wei u2 ze dian lu zhong mei zhi jing zha guan suo cheng shou de zui
号是()。11.在下列器件中，不存在二次击穿现象的功率半导体器件是()。a.scrb.mosfetc
hao shi () 11. zai xia lie qi jian zhong bu cun zai er ci ji chuan xian xiang de gong lv ban dao ti qi jian shi () a.scrb.mosfetc
步rs触发器d. 边沿rs触发器10.四种电力半导体器件的电路符号如图所示，表示igbt器件的电路符
bu rs chu fa qi d. bian yan rs chu fa qi 10. si zhong dian li ban dao ti qi jian de dian lu fu hao ru tu suo shi biao shi igbt qi jian de dian lu fu
主从t触发器9.5g乐亭吧555集成定时器中内部触发器为()。a.基本rs触发器b.主从rs触发器c.同
zhu cong t chu fa qi 9.5g le ting ba 555 ji cheng ding shi qi zhong nei bu chu fa qi wei () a. ji ben rs chu fa qi b. zhu cong rs chu fa qi c. tong
)d.·8.存在一次变化问题的触发器是()。a.主从rs触发器b.主从d触发器c.主从jk触发器d.
)d. 8. cun zai yi ci bian hua wen ti de chu fa qi shi () a. zhu cong rs chu fa qi b. zhu cong d chu fa qi c. zhu cong jk chu fa qi d.
.(i1+i2+i3)(i4+i5+i6)b.i1+i2+i3+i4乐亭吧+i5+i6c. (++)(++
.(i1+i2+i3)(i4+i5+i6)b.i1+i2+i3+i4 le ting ba +i5+i6c. (++)(++
1100110a.y=a·b. y=·abc.y=a·abd. y=·7.图示电路，输出y为()。a
1100110a.y=a b. y= abc.y=a abd. y= 7. tu shi dian lu shu chu y wei () a
2=0c.y1=d.y1=y26.由给定真值表可确定y与a、b之间的逻辑关系为()。aby00001
2=0c.y1=d.y1=y26. you gei ding zhen zhi biao ke que ding y yu a b zhi jian de luo ji guan xi wei () aby00001
),y2(a,b,c)=∑(2,3,4,5,6)，则正确的表述为()。a.y乐亭吧1+y2=1b.y1·y
),y2(a,b,c)= (2,3,4,5,6) ze zheng que de biao shu wei () a.y le ting ba 1+y2=1b.y1 y
=1时()。a.y=bb.y=c.y=0d. y=15.若y1(a,b,c)=∑(0,1,3,6,7
=1 shi () a.y=bb.y=c.y=0d. y=15. ruo y1(a,b,c)= (0,1,3,6,7
可选用()运算电路。a.反相乐亭吧比例b.同相比例c.反相求和d. 同相求和4.y=ab+c+bc，当=c
ke xuan yong () yun suan dian lu a. fan xiang le ting ba bi li b. tong xiang bi li c. fan xiang qiu he d. tong xiang qiu he 4.y=ab+c+bc dang =c
联b.电压并联c.电流串联d. 电流并联3.若要实现v0=-(10v1+5v2+v3)的运算关系，则
lian b. dian ya bing lian c. dian liu chuan lian d. dian liu bing lian 3. ruo yao shi xian v0=-(10v1+5v2+v3) de yun suan guan xi ze
.饱和状态d. 无法确定2.希望放大器具有低的输入电阻和稳定的输出电流，应引入()乐亭吧负反馈。a.电压串
. bao he zhuang tai d. wu fa que ding 2. xi wang fang da qi ju you di de shu ru dian zu he wen ding de shu chu dian liu ying yin ru () le ting ba fu fan kui a. dian ya chuan
)1.对半导体三极管，测得其发射结正偏，集电结反偏，此时该三极管处于()。a.放大状态b.截止状态c
)1. dui ban dao ti san ji guan ce de qi fa she jie zheng pian ji dian jie fan pian ci shi gai san ji guan chu yu () a. fang da zhuang tai b. jie zhi zhuang tai c
在每小题的四个备选答案中，选出一个正确答案，并将正确答案的序号填在题乐亭吧干的括号内。每小题2分，共24分
zai mei xiao ti de si ge bei xuan da an zhong xuan chu yi ge zheng que da an bing jiang zheng que da an de xu hao tian zai ti le ting ba gan de kuo hao nei mei xiao ti 2 fen gong 24 fen
浙江省2003年7月高等教育自学考试模拟、数字及电力电子技术试题课程代码：02238一、单项选择题(
zhe jiang sheng 2003 nian 7 yue gao deng jiao yu zi xue kao shi mo ni shu zi ji dian li dian zi ji shu shi ti ke cheng dai ma 02238 yi dan xiang xuan ze ti (