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 <[email protected]> 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 > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > -- > John Kasunich > [email protected] > > ------------------------------------------------------------------------------ > 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 > [email protected] > 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
