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:
Apr. 15, 2014
Filed:
Dec. 22, 2010
Jefferson L. Gokingco, Austin, TX (US);
Stephen C. Gerber, Austin, TX (US);
Wayne T. Holcombe, Mountain View, CA (US);
Miroslav Svajda, San Jose, CA (US);
Robert G. Farmer, Modesto, CA (US);
Jefferson L. Gokingco, Austin, TX (US);
Stephen C. Gerber, Austin, TX (US);
Wayne T. Holcombe, Mountain View, CA (US);
Miroslav Svajda, San Jose, CA (US);
Robert G. Farmer, Modesto, CA (US);
Silicon Laboratories Inc., Austin, TX (US);
Abstract
Systems and methods for a digital-to-charge converter ('DQC') are disclosed. A DQC may include a converting circuit configured to receive a first digital signal indicative of a voltage across a capacitor coupled to an output pin of the digital-to-charge converter and to determine a present charge of the capacitor based at least in part on the first digital signal. The DQC may also include an error determining circuit coupled to the converting circuit, wherein the error determining circuit is configured to receive a second digital signal indicative of a target charge via an input pin of the digital-to-charge converter and to determine a difference between the target charge and the present charge. The DQC may further include a correction circuit coupled to the error determining circuit and configured to control a programmable current source to produce an analog signal at the output pin in response to the determined difference.