ALEXANDRIA, Va., June 9 -- United States Patent no. 12,288,981, issued on April 29, was assigned to POWERTECH INDUSTRIAL Co. LTD. (New Taipei, Taiwan).
"Surge protection circuit" was invented by Chih-Yun Lin (New Taipei, Taiwan) and Chih-Hsing Chen (New Taipei, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A surge protecting circuit is provided. A first stage filter circuit is connected to an alternating current (AC) source. A surge detection driver circuit is connected to a first stage filter circuit. A first snubber circuit is connected to the AC source. A first terminal of a first power switch is connected to the first snubber circuit. A control terminal of the first power switch is connected to t...