The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 16, 2014
Filed:
Dec. 09, 2013
Applicant:
Sandisk 3d Llc, Milpitas, CA (US);
Inventors:
Kesheng Wang, Milpitas, CA (US);
Ali Al-Shamma, San Jose, CA (US);
Assignee:
SanDisk 3D LLC, Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/10 (2006.01); G05F 3/02 (2006.01); H03L 7/08 (2006.01);
U.S. Cl.
CPC ...
H03L 7/0802 (2013.01);
Abstract
A charge pump system includes a charge pump that receives its clock signals, generated by an oscillator circuit, though a clock buffer. The clock buffer is power-controlled to reduce power consumption and output voltage ripple. The buffer is formed of a series of inverter that are connected to the power supply level through a clamping element, such as a transistor whose gate is controlled by a regulation signal based on feedback from the pump's output.