学年度第一学期英语第二次调研测试_百度文库
两大类热门资源免费畅读
续费一年阅读会员，立省24元！
学年度第一学期英语第二次调研测试
上传于||文档简介
&&21-​-06​学​年​度​第​一​学​期​第​二​次​调​研​测​试​
​
​初​二​年​级​英​语​试​卷
阅读已结束，如果下载本文需要使用1下载券
想免费下载本文？
定制HR最喜欢的简历
下载文档到电脑，查找使用更方便
还剩4页未读，继续阅读
定制HR最喜欢的简历
你可能喜欢Hi，这是的腾讯微博，立即登录并收听，新鲜动态尽收眼底！
正在加载...
Copyright & 1998 - 2016 Tencent. All Rights ReservedWith Instructables you can share what you make with the world, and tap into an ever-growing community of creative experts.If I use 12v, the motor burns, 8v it takes longer to burn and 5v is not enough, will PWM save me?Here's the deal: I'm working on a project that uses 2 motors (PS2 controller vibrating motor, without the counterweight), I assume these are 5v dc motors, right?
Both rotate the same axis (1 is not enough due to the pressure that is being put on it, a spring mechanism stuff) With 12v it runs like a dream, till they burn! and from what I observed, always 1 motor hits higher temperature than the other, is there a problem with that?
Then I dropped it to 5v with diodes and the motors didnt have the strenght to start spinning, so I raised to 8v and they spin, not very smoothly (is that spell right?), but you know, they work, but still they're overheating!
If I used PWM to control both of the motors, would it work and not burn'em?
Thanks and sorry for the long and confusing text. Related}