Hello
I tried to play in this regard.
Theme here, use the translator http://forum.rcdesign.ru/f71/thread222017.html
Already decided the following, the power released during braking is not small.

Used as a DC / DC converter based on LT1270 On the hand other chips such power was not (8A)
Logs are at the link above and / or http://photofile.ru/users/berserk80/96567697/