ALEXANDRIA, Va., June 19 -- United States Patent no. 12,334,770, issued on June 17, was assigned to TMEIC Corp. (Chuo-ku, Japan).
"Uninterruptible power supply" was invented by Jun Matsumoto (Chuo-ku, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A bidirectional chopper selectively performs a charging operation and a discharging operation, the charging operation being an operation in which a part of DC power generated by a converter is stored in a power storage device, the discharging operation being an operation in which DC power of the power storage device is supplied to an inverter. A control circuit controls the bidirectional chopper to perform the discharging operation when a power failure of a p...