09810723 is referenced by 1 patents and cites 99 patents.

Techniques are presented for determining current levels based on the behavior of a charge pump system while driving a load under regulation. While driving the load under regulation, the number of pump clocks during a set interval is counted. This can be compared to a reference that can be obtained, for example, from the numbers of cycles needed to drive a known load current over an interval of the duration. By comparing the counts, the amount of current being drawn by the load can be determined. This technique can be applied to determining leakage from circuit elements, such as word lines in a non-volatile memory.

Title
Charge pump based over-sampling ADC for current detection
Application Number
13/628465
Publication Number
9810723 (B2)
Application Date
September 27, 2012
Publication Date
November 7, 2017
Inventor
Bo Lei
San Ramon
CA, US
Shankar Guhados
Fremont
CA, US
Jun Wang
San Jose
CA, US
Feng Pan
Fremont
CA, US
Agent
Stoel Rives
Assignee
SanDisk Technologies
TX, US
IPC
G11C 29/50
G11C 29/12
G11C 29/02
G01R 19/00
G05F 3/02
G05F 1/10
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