US Patent Issued to MITSUMI ELECTRIC on June 2 for "Semiconductor device for switching power supply and switching power supply device" (Japanese Inventor)

ALEXANDRIA, Va., June 2 -- United States Patent no. 12,647,035, issued on June 2, was assigned to MITSUMI ELECTRIC Co. LTD. (Tokyo).

"Semiconductor device for switching power supply and switching power supply device" was invented by Satoshi Arima (Isehara, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor device for a switching power supply is configured to perform ON/OFF control of a switching element connected in series to a primary winding of a transformer. The semiconductor device includes: a resonance monitor circuit that monitors a resonance state of a secondary winding of the transformer; a timer circuit that generates a period signal for determining a switching period of the switch...