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:
Nov. 04, 2014
Filed:
Aug. 15, 2012
Robert Johansson, Oslo, NO;
Tore Martinussen, Strømmen, NO;
Robert Johansson, Oslo, NO;
Tore Martinussen, Strømmen, NO;
OmniVision Technologies, Inc., Santa Clara, CA (US);
Abstract
A step-up converter includes an input coupled to receive a first voltage potential and an output coupled to output a second voltage potential higher than the first voltage potential. The step-up converter also includes an array of capacitance charge pumps. Each of the capacitance charge pumps in the array includes switches to be modulated to individually run each of the capacitance charge pumps by selectively connecting each of the capacitance charge pumps to the input and the output. The step-up converter further includes a control module coupled to the switches of each of the capacitance charge pumps and configured to modulate the switches at a substantially fixed frequency. The control module modulates the switches of selected capacitance charge pumps in the array in response to a current draw on the output. The step-up converter may be included in an image sensor.