??? 06/01/07 06:56 Read: times |
#140137 - it all depends on the dimensions... Responding to: ???'s previous message |
... you have available. But, generally, it's perhaps better to forget about planar coils at once, unless you are talking about some ones or tens of microamps or so (that's the order of magnitude of power with the RFIDs - and many of them use "normal" coils anyway)...
And, of course, the amount and shape of ferromagnetic materials around will also play its role. JW |
Topic | Author | Date |
What do you know about inductive power coupling? | 01/01/70 00:00 | |
I recall.... | 01/01/70 00:00 | |
ehum... isn't this a transformer? | 01/01/70 00:00 | |
Yes | 01/01/70 00:00 | |
Yahoo Nixies | 01/01/70 00:00 | |
Solar cells | 01/01/70 00:00 | |
Yeah transformers are a bit expensive | 01/01/70 00:00 | |
Lumpy ? | 01/01/70 00:00 | |
Its an inch diameter | 01/01/70 00:00 | |
nah. | 01/01/70 00:00 | |
it all depends on the dimensions... | 01/01/70 00:00 | |
if you can get to the end of the shaft ... | 01/01/70 00:00 | |
Zero speed | 01/01/70 00:00 | |
brushless exciters?? | 01/01/70 00:00 | |
Avoid saturation | 01/01/70 00:00 | |
why not look at RFID | 01/01/70 00:00 | |
Spin speed | 01/01/70 00:00 | |
Try Electric Cordless Toothbrushes | 01/01/70 00:00 |