ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,461,137, issued on Nov. 4, was assigned to Delta Electronics (Shanghai) Co. Ltd. (Shanghai).
"Shielding-type insulation detection structure" was invented by Yicong Xie (Shanghai), Weiqiang Zhang (Shanghai) and Shuzhu Su (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "A shielding-type insulation detection structure includes an input power source, a first shielding layer, a second shielding layer, a first impedance unit, a second impedance unit and a detection circuit. The first shielding layer is electrically connected with a first terminal of the input power source. The second shielding layer includes a first sub-layer and a second sub-layer. Th...