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:
May. 27, 2025
Filed:
Oct. 16, 2019
Otis Elevator Company, Farmington, CT (US);
Virgilio Valdivia Guerrero, Roquetas de Mar, ES;
Ismail Agirman, Southington, CT (US);
Daniel Diaz-Lopez, Tres Cantos, ES;
Mario Sanz Abia, Valladolid, ES;
Stephan Glessner, Berlin, DE;
Herbert Horbrugger, Berlin, DE;
OTIS ELEVATOR COMPANY, Farmington, CT (US);
Abstract
A power management system for an elevator system. A power management system for an elevator system includes a power converter having three input terminals, two of the three input terminals coupled to a main power source for supplying single-phase AC power to the power management system, the power converter configured to convert the AC power from the main power source into DC power on a common DC bus, a secondary power source for supplying DC power to the common DC bus, a power inverter configured to invert the DC power on the common DC bus into AC output power for driving an electric motor of the elevator system, and a dynamic braking resistor which is coupled between a third input terminal among the three input terminals of the three-phase power converter and the common DC bus.