Patent ID: 11908521
Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 14:
15. A method for operating non-volatile storage, comprising:
testing a set of regular control gate drivers, each regular control gate driver of the set of regular control gate drivers receives multiple different sources of voltage and comprises multiple voltage paths including a different voltage path connected to each of the received multiple different sources of voltage, the testing comprises:
separately testing each voltage path of each regular control gate driver of the set of regular control gate drivers by driving a respective source of voltage through the respective voltage path and comparing an output for the respective control gate driver to an upper reference and a lower reference for each voltage path of each regular control gate driver of the set of regular control gate drivers, and
determining that a particular regular control gate driver of the set of regular control gate drivers is defective because an output for the particular regular control gate driver is either above the upper reference or below the lower reference when driving at least one source of voltage through at least one of the voltage paths for the particular regular control gate driver; and

replacing the particular regular control gate driver with a redundant control gate driver that is connected to the sources of voltage connected to the particular regular control gate driver by selectively connecting the redundant control gate driver to the output for the particular regular control gate driver and disconnecting the particular regular control gate driver from the output for the particular regular control gate driver.