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:
Jul. 04, 2017
Filed:
May. 02, 2016
Skyworks Solutions, Inc., Woburn, MA (US);
Peter Harris Robert Popplewell, Ottawa, CA;
Jakub F. Pingot, Ottawa, CA;
Florinel G. Balteanu, Irvine, CA (US);
SKYWORKS SOLUTIONS, INC., Woburn, MA (US);
Abstract
Apparatus and methods for negative voltage generation with reduced clock feed-through are provided. In certain configurations, a method of negative voltage generation in a wireless device is provided. The method includes generating a regulated voltage from a battery voltage using a voltage regulator, powering a first charge pump and a second charge pump using the regulated voltage, generating a first negative voltage based on timing of a first clock phase using the first charge pump, generating a second negative voltage based on the first negative voltage and on timing of a second clock phase using the second charge pump, and generating the first clock phase and the second clock phase with different phases using a poly-phase oscillator such that the first charge pump and the second charge pump draw from the regulated voltage at different points in time.