[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fL8PohcKsbgbH_DNYaswkNAYGKyOELPrFQGUI0F3NoVk":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2026-01-21 21:53:37",253969915,[8,9,10,11],"每增加一级,理想空载电压提高2&radic;2U2","适用于大电流负载","每增加一级,理想空载电压提高&radic;2U2","电容耐压只需大于U2",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},27,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","186c91d3a4b04eb5834f8e7d36e88936","整流电路测试","关于倍压整流,下列说法正确的是",[21,32,41,50,59,68,74,83,92,101],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],253969906,[25,26,27,28],"Uo=&radic;2U2","Uo=1.2U2","Uo=0.9U2","Uo=0.45U2","单相半波整流电路中,负载上得到的平均电压Uo与变压器二次侧电压有效值U2的关系为","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],253969907,[36,37,38,39],"四倍","两倍","相同","一半","单相桥式整流电路的输出电压平均值是半波整流电路的",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],253969908,[45,46,47,48],"0.45U2","2&radic;2U2","&radic;2U2","0.9U2","桥式整流中,每只二极管承受的最大反向电压URM等于",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":30,"type":31},[],253969909,[54,55,56,57],"90&deg;","360&deg;","270&deg;","180&deg;","单相半波整流电路中,二极管在一个周期内的导通角为",{"answer":60,"createTime":5,"id":61,"options":62,"question":67,"source":30,"type":31},[],253969910,[63,64,65,66],"小电流、高电压","大功率、低频","小功率、高频","大电流、低电压","倍压整流电路主要适用的场合是",{"answer":69,"createTime":5,"id":70,"options":71,"question":73,"source":30,"type":31},[],253969911,[47,46,72,48],"4&radic;2U2","在二倍压整流电路中,理想空载输出电压约为",{"answer":75,"createTime":5,"id":76,"options":77,"question":82,"source":30,"type":31},[],253969912,[78,79,80,81],"ID=Io\u002F4","ID=Io\u002F2","ID=2Io","ID=Io","桥式整流电路中,流过每只二极管的平均电流ID与负载电流Io的关系为",{"answer":84,"createTime":5,"id":85,"options":86,"question":91,"source":30,"type":31},[],253969913,[87,88,89,90],"变为半波整流","电源短路,可能烧毁二极管","输出电压升高","纹波减小","若桥式整流有一只二极管接反,将造成",{"answer":93,"createTime":5,"id":94,"options":95,"question":100,"source":30,"type":31},[],253969914,[96,97,98,99],"200Hz","50Hz","100Hz","25Hz","单相半波整流带电阻负载时的最低次谐波(基波)频率是",{"answer":102,"createTime":5,"id":6,"options":103,"question":19,"source":30,"type":31},[],[8,9,10,11]]