US Patent Issued to ROHM on Feb. 4 for "Motor driver circuit for linear motor, positioning device using the same, and hard disk device" (Japanese Inventor)

ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,218,620, issued on Feb. 4, was assigned to ROHM Co. LTD. (Kyoto, Japan).

"Motor driver circuit for linear motor, positioning device using the same, and hard disk device" was invented by Hisashi Sugie (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A motor driver circuit includes: an error detection amplifier configured to receive a current feedback signal indicating a drive current of a motor as an object to be driven and an analog command signal indicating a target amount of the drive current, and generate an analog error signal indicating an error between the drive current and the target amount of the drive current; an A/D converter config...