ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,431,722, issued on Sept. 30, was assigned to Acbel Polytech Inc. (New Taipei, Taiwan).
"Power-saving charging device" was invented by Chia-An Yeh (New Taipei, Taiwan) and Wei-Liang Lin (New Taipei, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power-saving charging device controls both a primary side controller and a secondary side controller to be in a shutdown state when an output terminal is not connected to the load. When the output terminal is connected to the load, the secondary side controller receives a power-on power supply from a power storage unit, performs a power-on procedure and enters a working state. The primary side controlle...