tag:blogger.com,1999:blog-8200098102909041178.post1322368621027664969..comments2024-03-24T09:12:10.872-04:00Comments on Shane Colton: "The problem with your blog is, I can't understand any of it." -Ken ColtonShane Coltonhttp://www.blogger.com/profile/10603406287033587039noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-8200098102909041178.post-15720957680869635712020-11-08T19:41:05.571-05:002020-11-08T19:41:05.571-05:00BLDC motors with trapezoidal back EMF, driven by s...BLDC motors with trapezoidal back EMF, driven by square wave voltage, will always have some commutation noise. How bad it is depends on a lot of things. A fractional-slot motor (e.g. the common 12t/14p) will usually be quieter than an integer-slot motor. Anything that rounds off the corners of the back EMF, such as using a slightly larger air gap, will also make it quieter, at the expense of some peak torque.<br /><br />It's possible to drive a motor with trapezoidal back EMF with sinusoidal voltage, which will usually make it much quieter. But sinusoidal back EMF with sinusoidal voltage drive is the way to go if you want it to be virtually silent.Shane Coltonhttps://www.blogger.com/profile/10603406287033587039noreply@blogger.comtag:blogger.com,1999:blog-8200098102909041178.post-28569642537784988082020-11-06T16:00:52.878-05:002020-11-06T16:00:52.878-05:00great work!, it is posible to control a scooter mo...great work!, it is posible to control a scooter motor BLDC with trapezoidal conmutation without make noise?david2360https://www.blogger.com/profile/07601454222314135322noreply@blogger.comtag:blogger.com,1999:blog-8200098102909041178.post-37541952773024108032010-01-05T22:00:08.965-05:002010-01-05T22:00:08.965-05:00hello... hapi blogging... have a nice day! just vi...hello... hapi blogging... have a nice day! just visiting here....Anonymousnoreply@blogger.com