http://groups.google.com.my/group/sci.electronics.designsci.electronics.design Google Group
Electronic circuit design.
2009-11-23T02:23:57ZGoogle GroupsJohn Larkinjjlar...@highnotlandthistechnologypart.com2009-11-23T02:23:57Zhttp://groups.google.com.my/group/sci.electronics.design/browse_frm/thread/bb2ff42a9dac23b7/77fc3afb6a60a83a?show_docid=77fc3afb6a60a83aRe: Driver for very small brushless DC motors?
On Sun, 22 Nov 2009 17:23:32 -0800 (PST), dagmargoodb...@yahoo.com <br> wrote: <br> But they can be silky-smooth if you drive them right, in the speed <br> range they like. <br> I think of a BLDC as a 3-pole stepper that hard commutates based on <br> crappy Hall sensors. And I think of a stepper as a 100-pole BLDC that <br> soft commutates using precisely the waveform that produces the
Bill Slomanbill.slo...@ieee.org2009-11-23T02:16:05Zhttp://groups.google.com.my/group/sci.electronics.design/browse_frm/thread/bb2ff42a9dac23b7/0d14034cadcaa74b?show_docid=0d14034cadcaa74bRe: Driver for very small brushless DC motors?
On Nov 22, 11:43 pm, Phil Hobbs <br> <snip> <br> Conceptually, steppers and brushless DC motors are identical, except <br> that the brushless DC motor has got a rotational position sensor to <br> control the current through the various windings. In both cases the <br> windings are static and on the outside of the motor, which makes it
Phil Allisonphi...@tpg.com.au2009-11-23T02:12:37Zhttp://groups.google.com.my/group/sci.electronics.design/browse_frm/thread/83cfa8dea44a50b4/2abd8b3ff54e4088?show_docid=2abd8b3ff54e4088Re: About Nichrome Wire
"D from BC" <br> ** Yes. <br> ** No. <br> ..... Phil
Michael A. Terrellmike.terr...@earthlink.net2009-11-23T02:11:44Zhttp://groups.google.com.my/group/sci.electronics.design/browse_frm/thread/433aa6fce7510b02/85fee1182f2e1ba3?show_docid=85fee1182f2e1ba3Re: Coming Soon to Your State...
That never worked in a TV shop. :)
Phil Allisonphi...@tpg.com.au2009-11-23T02:10:02Zhttp://groups.google.com.my/group/sci.electronics.design/browse_frm/thread/35ec4bb7dc788115/fe54a172f35bd24b?show_docid=fe54a172f35bd24bRe: cross on top of radial electrolytic capacitors
"nukeymusic" <br> ** Despite all the good answers here - no one has addressed why such <br> indentations are only found on the tops of RADIAL style electros. <br> Most electros rely on the rubber end seal ( or a rubber plug in the case of <br> large chassis mount types) to blow out and vent high internal pressures.
Spehro Pefhanyspeffs...@interlogdotyou.knowwhat2009-11-23T02:10:58Zhttp://groups.google.com.my/group/sci.electronics.design/browse_frm/thread/bb2ff42a9dac23b7/09d10ca14079d048?show_docid=09d10ca14079d048Re: Driver for very small brushless DC motors?
On Sun, 22 Nov 2009 15:48:00 -0500, the renowned Phil Hobbs <br> Mostly seems to be uC/DSP-based designs these days rather than ASICs. <br> Best regards, <br> Spehro Pefhany
pyotr filipivichph...@mindspring.com2009-11-23T02:06:16Zhttp://groups.google.com.my/group/sci.electronics.design/browse_frm/thread/323e9bcbd02821dc/fdf65719102c4327?show_docid=fdf65719102c4327Re: What is awesome in German?
Let the Record show that Tim Wescott <t...@seemywebsite.com> on or <br> about Sat, 21 Nov 2009 13:10:54 -0600 did write/type or cause to <br> appear in rec.crafts.metalworking the following: <br> "Wunderbar"- although a lot of that is in the inflection. <br> Your girlfriend is coming over for the weekend. Wunderbar!
Phil Hobbspcdhspammesensel...@electrooptical.net2009-11-23T02:06:40Zhttp://groups.google.com.my/group/sci.electronics.design/browse_frm/thread/bb2ff42a9dac23b7/b1fd19b849087ce2?show_docid=b1fd19b849087ce2Re: Driver for very small brushless DC motors?
I'm actually just going to spin it up and do the measurement as it spins <br> down unpowered. That way I should have zero cogging and no jitter due <br> to commutation. <br> Cheers <br> Phil Hobbs
D from BCmyrealaddr...@comic.com2009-11-23T02:02:41Zhttp://groups.google.com.my/group/sci.electronics.design/browse_frm/thread/83cfa8dea44a50b4/94310d34c74b0309?show_docid=94310d34c74b0309About Nichrome Wire
I'm now currently Googling for an inline heater for my new pcb etcher. <br> Found salt water aquarium heaters so far. <br> Perhaps I might make my own heater. <br> I could coil some nichrome wire on glass tubing. <br> Does a coil of nichrome wire short itself out when the coils touch or <br> is there a natural insulating oxide on the nichrome wire?
Jamiejamie_ka1lpa_not_valid_after_ka1l...@charter.net2009-11-23T02:16:06Zhttp://groups.google.com.my/group/sci.electronics.design/browse_frm/thread/e4fd4bd946d752ec/c9ecc5a150162868?show_docid=c9ecc5a150162868Re: OT: What is this Intel Parallel Studio?
Its all about the LEAD! <br> Autism , retardation! They all have their excuses..
Joel Koltnerzapwiredashgro...@yahoo.com2009-11-23T01:59:42Zhttp://groups.google.com.my/group/sci.electronics.design/browse_frm/thread/f61408149a4d83c0/b5c077c616d86226?show_docid=b5c077c616d86226Re: A small rant about the 555 :-)
I'm thinking Camenzind wasn't expecting anyone to use the 555 much above a MHz <br> or so when he designed the thing. At those frequencies, the IC's <br> layout/pinout just isn't going to matter. <br> Didn't Hans used to occasionally post here? <br> ---Joel
Joel Koltnerzapwiredashgro...@yahoo.com2009-11-23T01:56:39Zhttp://groups.google.com.my/group/sci.electronics.design/browse_frm/thread/b3f726c5d69b722b/1d9a760ab8eba284?show_docid=1d9a760ab8eba284Re: OT: Taxes
I thought Jim Yanik was telling us it's the illegal immigrants keeping teens <br> from getting jobs? :-) <br> Personally, given how high adult unemployment is now, I suspect one of the <br> reasons teen unemployment is so high is that many adults are willing to take <br> an at-/near-minimum-wage job just to try to get by... and if you're hiring
Bill Slomanbill.slo...@ieee.org2009-11-23T01:54:28Zhttp://groups.google.com.my/group/sci.electronics.design/browse_frm/thread/f61408149a4d83c0/cc93269611e240b5?show_docid=cc93269611e240b5Re: A small rant about the 555 :-)
John Fields would be more interested. It has never turned out to be <br> useful for the work I've done. <br> I hate engineers who don't think about the layout they are effectively <br> asking for. Any circuit where stray capacitance or inductance can be a <br> problem should be designed with the layout in mind. <br> He seems to know more about electronics than krw does, but that isn't
dagmargoodb...@yahoo.com2009-11-23T01:46:30Zhttp://groups.google.com.my/group/sci.electronics.design/browse_frm/thread/b3f726c5d69b722b/72af9a13e2aedcec?show_docid=72af9a13e2aedcecRe: OT: Taxes
On Nov 22, 8:08 pm, John Larkin <br> It's also absurd to think infinite benefits can be squeezed out of <br> companies without killing jobs. That's what the unions did to heavy <br> industry. <br> All these benefits have costs. <br> Our new minimum wage just kicked in, so that teenagers looking for <br> their first job can earn enough to support a small family. Result?
christofirechristof...@btinternet.com2009-11-23T01:45:59Zhttp://groups.google.com.my/group/sci.electronics.design/browse_frm/thread/323e9bcbd02821dc/a49e3fabc6601ac3?show_docid=a49e3fabc6601ac3Re: What is awesome in German?
und kein Fehler!