ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,556,031, issued on Feb. 17, was assigned to TMEIC Corp. (Tokyo).
"Uninterruptible power supply device" 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 to store DC power received from a DC bus in a power storage device; and a discharging operation to output DC power of the power storage device to the DC bus. An inverter converts the DC power received from the DC bus into AC power and supplies the AC power to a load, and converts regenerative power generated by the load into DC power and outputs the DC power to the DC bus. An SOC reference value...