ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,418,240, issued on Sept. 16, was assigned to STMicroelectronics International N.V. (Geneva).

"Time modulation for DC-DC analog current sensing" was invented by Giuseppe Calderoni (Catania, Italy) and Marco Attanasio (Olbia-Tempio, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "A load is powered between positive and negative rails. A switching converter generates the negative rail voltage based on an input voltage, with a power transistor involved therein. A replica generator produces a replica voltage mirroring the drain-to-source voltage of the power transistor. A buffer buffers the replica voltage. A first switch selectively connects the buffer...