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Title:
A method and a device for the closed loop control of a power supply [in / one by one / a comparison register type analog-to-digital converter], and/or comparison machine common mode voltage
Document Type and Number:
Japanese Patent JP5969144
Kind Code:
B2
Abstract:
A method and apparatus for controlling supply voltage for a successive approximation register analog to digital converter and comparator common mode voltage. The method comprises: measuring a successive approximation register conversion time; comparing the successive approximation register conversion time with a desired conversion time; and if necessary, performing a closed loop adjustment of at least one of the supply and/or comparator common mode voltage. The apparatus consists of a common mode voltage and regulator correction module. The common mode voltage and regulator correction module includes a phase frequency detector, a charge pump and may include a transconductance cell.

Inventors:
Nagarajan, Calthink
Alladi, Dunesh Jay
Application Number:
JP2015560232A
Publication Date:
August 17, 2016
Filing Date:
February 21, 2014
Export Citation:
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Assignee:
QUALCOMM INCORPORATED
International Classes:
H03M1/06; H03M1/38
Domestic Patent References:
JP7264071A
JP2001505676A
JP2001292064A
JP2011199443A
Attorney, Agent or Firm:
Kurata Masatoshi
Yoshihiro Fukuhara
Morisezo Iseki
Okumura Motohiro