US 12,080,326 B2
Magnetic disk device and method
Tomonari Tashiro, Yokohama Kanagawa (JP)
Assigned to KABUSHIKI KAISHA TOSHIBA, Tokyo (JP); and TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION, Tokyo (JP)
Filed by KABUSHIKI KAISHA TOSHIBA, Tokyo (JP); and TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION, Tokyo (JP)
Filed on Mar. 10, 2023, as Appl. No. 18/181,859.
Claims priority of application No. 2022-150091 (JP), filed on Sep. 21, 2022.
Prior Publication US 2024/0096352 A1, Mar. 21, 2024
Int. Cl. G11B 5/40 (2006.01)
CPC G11B 5/40 (2013.01) 16 Claims
OG exemplary drawing
 
1. A magnetic disk device comprising:
a magnetic disk;
a magnetic head; and
a component group that writes and reads data to and from the magnetic disk by using the magnetic head,
wherein the component group includes:
a first component that operates at a voltage of a first value; and
a second component that is connected to the first component by a power line which sends power to the first component, operates at a voltage of a second value, when supply of the voltage of the second value to the second component is started, outputs a voltage of a third value smaller than the first value to the power line, measures a fourth value which is a value of current flowing through the power line in accordance with output of the voltage of the third value, when the fourth value is smaller than a first threshold, starts output of the voltage of the first value to the power line, and when the fourth value is larger than the first threshold, stops output of a voltage to the power line.