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https://drivepatents.com/patents/1390947 · 1 Apr 2026
An elevator machine assembly includes a motor and an elevator drive configured to control power supply to the motor. The elevator drive includes at least a plurality of converter switches and an energy storage device that is situated to be charged in respo...
https://drivepatents.com/patents/1392362 · 28 Jan 2026
An elevator system (31) comprising a power control system (16). The power control system (16) includes a multi-channel DC-DC converter (2) including a plurality of parallel channels (4). Each channel (4) of the multi-channel DC-DC converter (2) is independ...
https://drivepatents.com/patents/1398302 · 23 Apr 2025
Disclosed is an elevator system for a building, the system including a first elevator for transporting a passenger with a first mobile device between a plurality of lobbies, the system comprising a controller that communicates with the first mobile device ...
https://drivepatents.com/patents/998102 · 19 Sep 2012
An energy management system (1) for an elevator installation (2) coupled to a source of alternative energy (4) integrates various operational modes regarding optimization of energy usage. The energy management system (1) selectively executes these modes de...