Patent ID: 8866575

Claim:
A multi-coil choke for an AC power conditioner, comprising: a magnetic core structure having a first leg, a second leg and a third leg, said legs being substantially parallel to each other, the magnetic core structure being in the form of two E-shaped core components facing each other to form two magnetic cores, a first magnetic core being formed between the first leg and the second leg and a second magnetic core being formed between the second leg and the third leg; a first coil wrapped around said first leg; a second coil wrapped around said second leg; a third coil wrapped around said third leg; a fourth coil wrapped around a lead portion of said third coil but not being wrapped around the core; a fifth coil wrapped around a lead portion of said first coil but not being wrapped around the core; wherein: said first leg includes a first air gap, the first coil extending over and completely across the first air gap; said second leg includes a second air gap, the second coil extending over and completely across the second air gap; said third leg includes a third air gap, the third coil extending over and completely across the third air gap; and the first, second and third air gaps completely separate the two E-shaped core components.