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:
Mar. 14, 2023
Filed:
Jul. 01, 2021
Applicant:
Raytheon Systems Limited, Essex, GB;
Inventor:
Raymond Blane, Glenrothes, GB;
Assignee:
Raytheon Systems Limited, Essex, GB;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/42 (2007.01); H02M 7/219 (2006.01); H02M 7/797 (2006.01);
U.S. Cl.
CPC ...
H02M 1/4225 (2013.01); H02M 1/4233 (2013.01); H02M 7/219 (2013.01); H02M 7/797 (2013.01);
Abstract
A power factor correction 'PFC' circuit for use in AC-DC conversion comprises first and second pairs of switches connected across input and output rails in a full bridge configuration, and a controller configured to control the operation of the switches such that one pair of switches is switched on and off at an AC input frequency and the other pair of switches is switched on and off at high frequency; and the switching frequency is alternated between the pairs of switches every n cycles of the AC input/output frequency. The circuit may include inductors on both input rails and may be used in a bidirectional power supply.