基础电学1

Electric/ElectronicBasicVS-12December2007Page1BMWGroup售后服务培训----电气/电子系统基础Electric/ElectronicBasicVS-12December2005Page2物质的分类自然界的物质按导电能力来分有哪几种:1)导体2)半导体3)绝缘体Electric/ElectronicBasicVS-12December2005Page3原子结构电子,质子和中子1.电子2.中子3.质子少电子多电子Electric/ElectronicBasicVS-12December2005Page4电压交流、直流的电压源Electric/ElectronicBasicVS-12December2005Page5电压交流、直流的电压源Ueff:交流电压的均方根值Electric/ElectronicBasicVS-12December2005Page6电压电压的测量Electric/ElectronicBasicVS-12December2005Page7电流1.开关2.电流表3.电阻Electric/ElectronicBasicVS-12December2005Page8电流电流的方向技术电流方向物理电流方向Electric/ElectronicBasicVS-12December2005Page9电流电流的测量1.开关2.电流表3.电阻1.电流夹钳2.蓄电池负极单线Electric/ElectronicBasicVS-12December2005Page10电流电流流动的模型1.水泵2.阀3.涡轮4.水流1.电源电压2.开关3.灯泡4.电流方向Electric/ElectronicBasicVS-12December2005Page11电压与电流练习：任务1----任务9。（薄的练习册P1-P12）第10章P21—P24。（厚教材）Electric/ElectronicBasicVS-12December2005Page12电阻电气符号R-电阻-电阻率I-导线长度A-线径Electric/ElectronicBasicVS-12December2005Page13电阻材料比电阻(Ω•mm2/m)银0.0161铜0.0178金0.023铝0.0303锡0.11铁0.13下表列出了一些电工学所用导体的比电阻。Electric/ElectronicBasicVS-12December2005Page14电阻电阻的的标称值Electric/ElectronicBasicVS-12December2005Page15电阻电阻的的标称值Electric/ElectronicBasicVS-12December2005Page16电阻电阻的的标称值Electric/ElectronicBasicVS-12December2005Page17电阻电阻的的标称值电阻的分类：1）固定电阻2）可调电阻3）电位器Electric/ElectronicBasicVS-12December2005Page18电源电压的内阻Electric/ElectronicBasicVS-12December2005Page19欧姆定律U=I*RUI=---RUR=---IElectric/ElectronicBasicVS-12December2005Page20电功率Electric/ElectronicBasicVS-12December2005Page21电路电阻的串联与并联Rges=R1+R2+R3Electric/ElectronicBasicVS-12December2005Page22半导体器件PTC和NTC热敏电阻Electric/ElectronicBasicVS-12December2005Page23电路Electric/ElectronicBasicVS-12December2005Page24电路Electric/ElectronicBasicVS-12December2005Page25电路Electric/ElectronicBasicVS-12December2005Page26基尔霍夫定律第一定律和第二定律I1+I2-I3-I4-I5=0AUq1+Uq2+(-U1)+(-U2)=0VElectric/ElectronicBasicVS-12December2005Page27电容器和电容电容器的充电和放电1.直流电压源2.开关3.电流表4.电阻5.电容1.电容器充电2.电容器放电i电流u电压电容的容抗:fccxc211Electric/ElectronicBasicVS-12December2005Page28电容器的串、并联Cges=C1+C2+C3Electric/ElectronicBasicVS-12December2005Page29线圈与电感通电导体的磁场通电导体的磁场线圈的磁场Electric/ElectronicBasicVS-12December2005Page30线圈与电感fllxl2线圈的电气符号电感的感抗fllxl2Electric/ElectronicBasicVS-12December2005Page31线圈与电感通电导体的磁场Electric/ElectronicBasicVS-12December2005Page32线圈与电感通电导体的磁场感应电压：1）线圈的电感量。2）电流变化的大小。3）电流变化的时间长、短。Electric/ElectronicBasicVS-12December2005Page33线圈与电感通电导体的磁场Electric/ElectronicBasicVS-12December2005Page34线圈与电感通电导体的磁场Electric/ElectronicBasicVS-12December2005Page35基本器件练习测量E60尾灯的控制信号;水箱风扇电机的控制信号.氧传感器、爆震传感器的输出信号。喷油阀、节气门、怠速阀控制信号、点火线圈初级信号。Electric/ElectronicBasicVS-12December2005Page36半导体半导体的原子结构Electric/ElectronicBasicVS-12December2005Page37半导体Electric/ElectronicBasicVS-12December2005Page38半导体N型与P型半导体N型半导体P型半导体Electric/ElectronicBasicVS-12December2005Page39半导体PN结Electric/ElectronicBasicVS-12December2005Page40晶体二极管1.N型2.P型3.阴极4.阳极Electric/ElectronicBasicVS-12December2005Page41晶体二极管Electric/ElectronicBasicVS-12December2005Page42晶体二极管Electric/ElectronicBasicVS-12December2005Page43晶体二极管发光二极管1.光线2.PN结3.外包装4.引线Electric/ElectronicBasicVS-12December2005Page44晶体二极管稳压二极管Electric/ElectronicBasicVS-12December2005Page45晶体二极管稳压二极管Electric/ElectronicBasicVS-12December2005Page46晶体三极管1.NPN-晶体管2.PNP-晶体管Electric/ElectronicBasicVS-12December2005Page47晶体三极管晶体管的功能原理Electric/ElectronicBasicVS-12December2005Page48晶体三极管晶体管的功能原理Electric/ElectronicBasicVS-12December2005Page49晶体三极管晶体管的功能原理Electric/ElectronicBasicVS-12December2005Page50晶体三极管晶体管的功能原理Electric/ElectronicBasicVS-12December2005Page51晶体管场效应管1.栅极2.漏极3.N-沟道4.源极MOSFET场效应管P-沟道MOSFET场效应管N-沟道结型场效应管Electric/ElectronicBasicVS-12December2005Page52晶体管霍尔传感器Electric/ElectronicBasicVS-12December2005Page53半导体器件集成电路与控制模块Electric/ElectronicBasicVS-12December2005Page54数字电路与信号传输数字电路的数字:1)02)1其数字只代表数值的高、低，不代表数字具体为多少大小。在供电电源为+5V的电路中在供电电源为12V的电路中Electric/ElectronicBasicVS-12December2005Page55数字电路与信号传输数字电路的运算方法：1）“与”Electric/ElectronicBasicVS-12December2005Page56数字电路与信号传输数字电路的运算方法：2）“或”Electric/ElectronicBasicVS-12December2005Page57数字电路与信号传输数字电路的运算方法：3）“非”Electric/ElectronicBasicVS-12December2005Page58数字电路与信号传输数字电路的运算方法:4)“与非”5）“或非”Electric/ElectronicBasicVS-12December2005Page59数字电路与信号传输数据信号的传递：1）串行2）并行Electric/ElectronicBasicVS-12December2005Page60数字电路与信号传输同步传输异步传输Electric/ElectronicBasicVS-12December2005Page61数字电路与信号传输信号传输方向Electric/ElectronicBasicVS-12December2005Page62数字电路与信号传输传输速率：Electric/ElectronicBasicVS-12December2005Page63数字电路与信号传输Electric/ElectronicBasicVS-12December2005Page64数字电路与信号传输Electric/ElectronicBasicVS-12December2005Page65数字电路与信号传输Electric/ElectronicBasicVS-12December2005Page66数字电路与信号传输