Most of this discussion is past my knowledge level but this may be easy to build ( not a module but few parts ) and 250w to 2kw and fairly high voltage HTH http://www.irf.com/technical-info/appnotes/an-1044.pdf regards TomP tjtr33
On 11/25/2014 10:15 AM, Karlsson & Wang wrote: > Control signals are the same regardless of current and voltage rating so the > same chip for example a MCU or FPGA could be used for signal generation > regardless of size which is the reason why I want them as separate modules > with or without the control logic. The second reason is inverter bridge stay > the same for different type of electric motors although control logic may > have to be changed for example by using different software. > > As is now I find totally integrated drivers without possility to change > software. With this approach there is one power factor corrector and > possible voltage transformation in each driver which make them relatively > expensive. Components for an inverter running from for example a 48 volt DC > power rail is cheap. Although not optimal it will also work from a lower > voltage. One large power converter instead of several small will also be > cheaper. There are also several several or more cheap micro controllers > available with special purpose built hardware for motor control to generate > the control signals, some software libraries are also available. > > Nicklas Karlsson > > > > > > On Mon, 24 Nov 2014 09:36:58 -0500 > John Kasunich <jmkasun...@fastmail.fm> wrote: > >> You don't mention voltage or current ratings. They are pretty relevant. >> The bigger you go the more demanding the power circuit design becomes, >> and the less likely you are to find pre-built all-in-one solutions. >> >> >> On Mon, Nov 24, 2014, at 05:46 AM, Karlsson & Wang wrote: >>> I have not been able to find simple inverters or half bridges which is the >>> basic building block of an electric motor driver regardless of type or >>> size. Do anybody know about?? >>> >>> Currently I am developing these half bridges myself. It works great but it >>> is time consuming and the result is not the best. Then half bridges with >>> logic input signals are available there are cheap development boards >>> available from several suppliers so this is really a missing key part not >>> readily available. >>> >>> >>> >>> >>> >>> Nicklas Karlsson >>> >>> ------------------------------------------------------------------------------ >>> Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server >>> from Actuate! Instantly Supercharge Your Business Reports and Dashboards >>> with Interactivity, Sharing, Native Excel Exports, App Integration & more >>> Get technology previously reserved for billion-dollar corporations, FREE >>> http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk >>> _______________________________________________ >>> Emc-users mailing list >>> Emc-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/emc-users >> >> >> -- >> John Kasunich >> jmkasun...@fastmail.fm >> >> ------------------------------------------------------------------------------ >> Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server >> from Actuate! Instantly Supercharge Your Business Reports and Dashboards >> with Interactivity, Sharing, Native Excel Exports, App Integration & more >> Get technology previously reserved for billion-dollar corporations, FREE >> http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users > > ------------------------------------------------------------------------------ > Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server > from Actuate! Instantly Supercharge Your Business Reports and Dashboards > with Interactivity, Sharing, Native Excel Exports, App Integration & more > Get technology previously reserved for billion-dollar corporations, FREE > http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
