US 12,294,201 B2
Portable power supply device for building equipment
James Fettinger, Huntington, IN (US); Joseph R. Turner, Fort Wayne, IN (US); Andrew M. Ramser, Fort Wayne, IN (US); and Paul Cornett, Jr., Florence, SC (US)
Assigned to CARRIER CORPORATION, Palm Beach Gardens, FL (US)
Filed by Carrier Corporation, Palm Beach Gardens, FL (US); and Otis Elevator Company, Farmington, CT (US)
Filed on Mar. 14, 2022, as Appl. No. 17/654,676.
Claims priority of provisional application 63/200,573, filed on Mar. 16, 2021.
Prior Publication US 2022/0302544 A1, Sep. 22, 2022
Int. Cl. H02B 1/52 (2006.01)
CPC H02B 1/52 (2013.01) 9 Claims
OG exemplary drawing
 
1. A movable power conversion device comprising:
a housing;
a building power interface cable configured to pass through the housing and attach to a building power grid;
a plurality of input fuses operatively coupling the building power interface cable to an input voltage selector, wherein the input voltage selector is configured to allow a user to select a voltage of the building power grid;
a transformer having an input side and an output side, wherein the input side is operatively coupled to the input voltage selector and the output side is operatively coupled to a power receptacle, wherein
the transformer comprises three or more voltage input connections and the input voltage selector is operable to switch electrical connectivity between said input connections and the building power interface cable such that the transformer input voltage is selectable between two or more voltage input levels by the input voltage selector.