Patent ID: 7132918

Claim:
A secondary for an inductively powered device comprising: a first coil arranged at a first angular orientation; a second coil arranged at a second angular orientation, said first angular orientation being different from said second orientation; a third coil arranged at a third angular orientation, said third angular orientation being different from said first orientation and said second orientation; said first angular orientation, said second angular orientation and said third angular orientation are about ninety degrees apart from one another; a capacitor connected in series between said load and each of said first coil, said second coil and said third coil; said first coil, said second coil and said third coil are electrically connected in a half-bridge arrangement with a diode connected in series between said load and each of said first coil, said second coil and said third coil; and circuit means for electrically connecting said first coil and said second coil with a common load.