MUMBAI, India, Aug. 31 -- Intellectual Property India has published a patent application (202514117208 A) filed by Otis Elevator Company on November 26, 2025, for Elevator System With Capacitor Pre-Charge.
Inventors include Dehmlow, Marvin; Tempelhoff, Annika; Oesterle, Robert; and Nagarajan, Prasanna.
The application for the patent was published on August 28, 2026, under issue no. 35/2026.
Abstract: An elevator power system includes a drive including: an AC-DC converter configured to generate a DC voltage on a DC link; a capacitor connected across the DC link; a DCAC inverter configured to convert the DC voltage to an AC drive signal to power a motor; a rescue unit including: a power converter configured to supply a DC output voltage to...