描述
电机消耗的电流继续增 … 虬动作,依
此类推。当电机的负载减
小时,继电器将按 …”
一款交流电机制动电路 “… 电流的冲击可使任何交流工具电机瞬间停转,本文介绍的电路 …
接通,交流电源供电,电机转动。为了使电机制动.只要按下S … ‘ -个短促的直
流冲击即可使电机停转。开关释放后,自动 …
制动方憾只适用0-变流电机,二微管必须加散热片 …”
一款微型电钻电机自动调速电路 “… 时改变它的工作电压,iir1114f电机的转速,此时电流舯变化足
很小的。当电机加载后,它的工作电流 … 。由此可以通过
检测电机的工作电流来判断电机是否加载,再J …”
一款简单的三相无刷步进电机驱动电路 “… )中S1·52.s】表示
电机定千.P.B、B …
它们的门接地,4001能使用电机驱动晶体管截止。此电路适用 …
2A,蛙大频率2{X1Hz.电机速度2000转/舒。住较低频率时(2Hz),电机开始会
有些跳动,转八高速 …”
一款锁相环电机调速电路 “… 一个开槽的圃虢安装在电机轴卜.让它运动在一个 … 传感器的间散巾,
撤槲电机的转速和圆盘E的槽 … 当Fm小rFref时,
冁动电机转速增JJ”。当Fm夫 … 时则相厦。萁结果足电机转速的变化使得Fm
与Fref相等 … ,这个电路能甲稳地将电机转速降低至f分钟300
转。”
一款多功能电机保护电路 “… 啪J一保护二榭盘
眦电机叫.可川该电路榆测 … 台,矗断开,KM释放,电机失电
得到保护。同时继电器^得 … RP6可改变延时时间。当电机缺相运行时,其
中一 …
通,J动作,KM释放,电机失电,DL电路开始工作。 … 在运行时,能
清晰地显示电机的电流,起到数字电流表的作用 …”
一款单相电机正反转控制电路(二) “… 控制电路.片侧为单相电机接线尉,图小K为总 … v斗^一-B形成回路,此时电机顺向转动,远料斗上行。当 … 所有常=¨=触点均断开,电机停lt运行。
k … 电流方向与上行时相反,所以电机开始反向运转,运料斗开始
向 …”
一款电机断相保护器电路 “… ,接.妊a接
通,电机D得电正常运转,巴为 … 艘【接点J接豇Ⅱ),电机正常T作。
当 … 电
豫,接点C ~rr/f.电机Ⅲa断】r而失电停 … 后.4能再次7 F肩电机D。
玛外, …”
双极性步进电机驱动电路图 双极性步进电机的驱动电路如图所示, … 或六线式步进电机,虽然四线式电机只能使用双极性驱动 … 应用的成本。双极性步进电机驱动电路的晶体管数目是单极性 … 极性驱动电路的晶体管只需承受电机电压,所以它不像单极性 …
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