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:
Sep. 14, 2004
Filed:
Mar. 21, 2002
Benjamim Tang, Hawthorne, CA (US);
Keith Bassett, Torrance, CA (US);
Tim Ng, Monterey Park, CA (US);
Kenneth A. Ostrom, Palos Verdes, CA (US);
Nicholas Steffen, Redondo Beach, CA (US);
Cliff Duong, Fountain Valley, CA (US);
Primarion, Inc., Tempe, AZ (US);
Abstract
A system is provided for supplying current to a dynamic load subject to transient current requirements. A sense unit coupled to the dynamic load is configured to sense the rate of change of supply current required by the dynamic load during a transient event. A current source coupled to the sense unit is configured to supply a current pulse to the dynamic load in response to the sense unit determining that the rate of change of supply current (di/dt) exceeds a predetermined threshold. The current pulse preferably has a shape characterized by a first region and a second region subsequent to the second region, wherein the first region includes a first boost current which exceeds the transient current requirement, and wherein the second region includes a second boost current which is less than the transient current requirement. More generally, a wideband transient suppression system is provided for controlling a wide spectrum of transients. The wideband system includes a primary regulator configured to compensate for low frequency transients, and a secondary regulator configured to provide short-term compensation current to the dynamic load until the relatively slow primary regulator can accommodate the transient event. The secondary regulator includes two major functional blocks: a close-loop voltage-sensing compensation circuit configured to compensate for transients falling within a mid-range frequency range, and an open-loop di/dt-sensing compensation circuit configured to compensate for transients falling within a high-frequency range.