ESC information querrry

Started by AshokP, December 21, 2011, 08:33:16 PM

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AshokP

Dear All,

I am flying electrics. I have some questions about ESC types.
1) What is the meaning of OPTO? I know it is ESC without BEC, but I don't know why it is called OPTO.
2) What is the technical difference between UBEC & SBEC?

Thanks,

Ashok