Quote:
Originally Posted by BrianG
When testing different BECs, it seems the coil is the hottest part at any load and input voltage, so that makes sense. The only BEC I've ever tested where heat is more distributed is the Western Robotics HV; but that uses a very large/robust coil so it probably has enough mass to absorb it better.
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It's an interesting problem. We are using a flat wire wound coil in our BECs (where the coil is wound like a slinky), which give VERY high saturation currents, but only so-so RMS current values. Flat wound toroids are just now starting to hit the scene, which give even higher saturation currents, lower noise, and higher RMS currents. But they are tall -- which doesn't fit well into RC applications. But every year, we see higher and higher currents in smaller coils. I would have thought that coil technology would have peaked 20 years ago -- but they keep getting better densities.
--- And BTW, sorry to jack the thread for a technical discussion
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