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:
May. 17, 2011
Filed:
Dec. 19, 2008
Dennis Sinitsky, Los Gatos, CA (US);
Shafiq M. Jamal, Gilroy, CA (US);
Dennis Sinitsky, Los Gatos, CA (US);
Shafiq M. Jamal, Gilroy, CA (US);
Marvell International Ltd., Hamilton, BM;
Abstract
In one embodiment, the present invention includes a circuit for suppressing noise with adaptive charge-pump regulation. The circuit comprises an oscillator circuit, a charge pump, an amplifier, a current mirror, and a filter. The charge-pump receives an oscillating signal and provides an output voltage. The amplifier is responsive to the output voltage and a reference voltage and provides a control signal. The control signal alters a frequency of the oscillator and the output voltage is responsive to this frequency. The current mirror and filter suppress a noise component of the output voltage. The current mirror provides a supply current to a regulator loop. The regulator loop is operable to generate a consistent regulator voltage. In this manner, the adaptive charge-pump allows for a more consistent, noise free, regulator voltage.