Multiphase coupled and integrated inductors with printed circuit board (PBC) windings for power factor correction (PFC) converters

Publication Date
2019-02-26Filing Date
2017-04-11Inventor
Lee, Fred C.
Yang, Yu-Chen
Li, Qiang
Mu, Mingkai
Metadata
Show full item recordAbstract
A power factor correction (PFC) power converter, particularly of a multiphase totem-pole or other topology presenting a switching bridge that can potentially provide bi-directional power transfer control, reduces a nominal switching frequency and achieves zero voltage switching over an increased portion of a half line cycle by providing positive or inverse coupling of inductors in an inductor structure that can be formed of a multi-layer printed circuit board such that at least three different inductances are presented during each half line cycle period; allowing increased switching frequency and simplifying EMI filtering arrangements. Parasitic capacitances can be balanced with additional coupled windings to reduce differential mode and common mode noise. The PFC power converter is particularly applicable to provide bi-directional power control from an on-board battery charger in an electrically powered vehicle.
Assignee
Virginia Tech Intellectual Properties, Inc.
Patent Number
10217559
Application Number
15484641
Primary/U.S. Class
Other/U.S. Class
CPC Class
H01F27/2804
H01F2027/2809
H02M1/4225
H02M7/23
Y02B70/10
Patent Type
utility
Collections
- Virginia Tech Patents [689]