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:
Dec. 08, 2009
Filed:
Aug. 09, 2007
Francesco Rezzi, Cava Manara, IT;
Nicola Ghittori, Pavia, IT;
Giovanni Antonio Cesura, Cremona, IT;
Shafiq M. Jamal, Gilroy, CA (US);
Francesco Rezzi, Cava Manara, IT;
Nicola Ghittori, Pavia, IT;
Giovanni Antonio Cesura, Cremona, IT;
Shafiq M. Jamal, Gilroy, CA (US);
Marvell International Ltd., Hamilton, BM;
Abstract
In a circuit to convert a voltage range of a control signal, a first switch selectively couples, based on the control signal, an output node to a first reference voltage when the output node is to be in a first state. A second switch selectively establishes, based on the control signal, a second reference voltage when the output node is to be in a second state, the second state being a logical complement of the first state. A feedback control loop is coupled to the output node to maintain the second reference voltage in response to voltage fluctuation at the output node. The feedback control loop includes a current mirror and a transistor coupled to the current mirror. The transistor is controlled by feedback from the output node to modify a biasing current established by the current mirror to thereby counteract the voltage fluctuation.