Oh, those poor little traces on the pcb. They're a bit smaller than the 6-3 cable that runs to our electric stove, and that only is rated for 50A.
On Fri, Jul 26, 2013 at 2:39 PM, John Kasunich <[email protected]>wrote: > Huge is certainly a relative term. That sink isn't going to > dissipate 78 watts unless you dip the fins in ice water. > > But is certainly will dissipate something. And 0.016 ohms is > a pretty low on-resistance. > > Let's say the sink can handle 10 watts. In an H-bridge, one > device on each side is conducting at any given time. That > means each one can dissipate 5 watts. With 0.016 ohms > on-resistance, it should be good for 17A. (That doesn't > count switching losses, and assumes that they are using > synchronous rectification and not just plain freewheeling > diodes.) > > > On Fri, Jul 26, 2013, at 03:27 PM, andy pugh wrote: > > On 26 July 2013 19:39, Ralph Stirling <[email protected]> > wrote: > > > That little board doesn't have any heat sinking > > > > I think it has a huge one on the back? > > > > -- > > atp > > If you can't fix it, you don't own it. > > http://www.ifixit.com/Manifesto > > > > > ------------------------------------------------------------------------------ > > See everything from the browser to the database with AppDynamics > > Get end-to-end visibility with application monitoring from AppDynamics > > Isolate bottlenecks and diagnose root cause in seconds. > > Start your free trial of AppDynamics Pro today! > > > http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk > > _______________________________________________ > > Emc-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > -- > John Kasunich > [email protected] > > > ------------------------------------------------------------------------------ > See everything from the browser to the database with AppDynamics > Get end-to-end visibility with application monitoring from AppDynamics > Isolate bottlenecks and diagnose root cause in seconds. > Start your free trial of AppDynamics Pro today! > http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > > ------------------------------------------------------------------------------ See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
