US Patent Issued to Cypress Semiconductor on Sept. 16 for "Boost inductor recirculation protection based on switch node detection method" (Singaporean Inventors)

ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,418,233, issued on Sept. 16, was assigned to Cypress Semiconductor Corp. (San Jose, Calif.).

"Boost inductor recirculation protection based on switch node detection method" was invented by Qiong Zou (Singapore) and Soon Hwei Tan (Singapore).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods are provided to supply a voltage (Vcc) to a primary IC in a switch-mode-power-supply following startup. Briefly, an input voltage (VIN) coupled through a boost-inductor to a switch-pin of the IC is sensed by isolating a DC component (VDC_BSW) of the voltage and checking if VIN is greater than a minimum VIN (VIN_MIN) by comparing VDC_BSW to a starting ...