The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 20, 2018
Filed:
Apr. 25, 2014
Flextronics Ap, Llc, Broomfield, CO (US);
Hua Min Xu, Shenzhen, CN;
Wei Li, Shenzhen, CN;
Hui Zhang, Shenzhen, CN;
Xing Hao Zhang, Shenzhen, CN;
Yi Zhang, Shenzhen, CN;
FLEXTRONICS AP, LLC, Broomfield, CO (US);
Abstract
A bridgeless PFC boost converter has either a single switching cell or two identical switching cells configured to operate 180 degrees out of phase. A switching cell includes first and second transistor switches coupled to opposing ends of an input AC voltage source, and first and second rectifying diodes, one rectifying diode coupled in series to each of the two transistor switches. A boost inductor is coupled to a junction node between each transistor switch and rectifying diode series. Either a third rectifying diode or a third transistor switch is coupled to a junction node between the input AC voltage source and the first transistor switch. Either a fourth rectifying diode or a fourth transistor switch is coupled to a junction node between the input AC voltage source and the second transistor switch. The rectifying diodes are coupled an output capacitor. Two switching cells can be interleaved.