CC BEC Pro Question

[Pdelcast]

Originally Posted by BrianG

This BEC looks good for a project I'm planning, but I see that it is rated for different voltages depending on usage. I assume this is to compensate for braking voltages. My question is; can the full 12s lipo rating be used if I were to add several paralleled TVS devices across the input power leads?

Possibly? Hows that for a non-committal answer...


The issue is that if the 60V main MOSFET breaks down (avalanches) it can take the switcher controller with it. The MOSFET seems to take it just fine, but the controller is a little sensitive.

A few large parallel caps will help a lot, a few large TVS devices will also help. But so much depends on the actual setup it's hard for me to determine how much capacitance/TVS value will work well.