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:
Jul. 12, 2022
Filed:
May. 05, 2020
Nidec Motor Corporation, St. Louis, MO (US);
David E. Lass, Addison, IL (US);
Priscilla K. Dobbin, St. Charles, IL (US);
Nidec Motor Corporation, St. Louis, MO (US);
Abstract
A system and method for facilitating regenerative charging of a battery by a motor drive when the battery is properly physically connected to a drive circuitry and blocking current when the battery is improperly physically connected. The system includes drive circuitry, a battery and motor drive connected to the drive circuitry, an N-channel MOSFET connected to a high side of the drive circuitry, and a FET controller including a charge pump connected to a gate terminal of the N-channel MOSFET. When the battery is properly physically connected to the drive circuitry, the charge pump is switched on and the N-channel MOSFET allows reverse current to flow from the motor drive to recharge the battery. When the battery is improperly physically connected to the drive circuitry, the charge pump is switched off and the N-channel MOSFET blocks current from flowing and damaging the battery.