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. 23, 2016
Filed:
Jul. 23, 2012
John Peter Bilezikjian, Canton, MI (US);
Debbi Callicoat, Livonia, MI (US);
John Peter Bilezikjian, Canton, MI (US);
Debbi Callicoat, Livonia, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A low cost charger circuit with pre-charge functionality can include a DC/DC converter arranged in parallel with a charger device. When used for electrified vehicle applications, the DC/DC converter can be configured to operate during vehicle propulsion, restorable energy storage system (RESS) recharging, and while only the DC/DC converter needs to be energized. A DC/DC converter can be coupled to a first high voltage bus on a load side of a primary contactor, and to a second high voltage bus on an energy side of a primary contactor. A pre-charge circuit can controllably charge a voltage bus and protect a DC/DC converter against high inrush current. An auxiliary contactor can controllably couple a DC/DC converter to a load portion of a high voltage bus. It can also couple a charger thereto. A charger contactor can controllably couple a charger device to an energy portion of a high voltage bus.