Chien H Nguyen

US Patent:

6445599, Sep 3, 2002

Filed:

Mar 29, 2001

Appl. No.:

09/820956

Inventors:

Chien Nguyen - Sunnyvale CA

Assignee:

Maxim Integrated Products, Inc. - Sunnyvale CA

International Classification:

H02M 3335

US Classification:

363 25

Abstract:

Ripple canceling, soft switching isolated DC/DC converters with reduced voltage stress synchronous rectification. The converters include interleaved switching converters providing power to a node supplying power to a zero volt switching bi-phase power conversion stage driving synchronous rectifiers feeding an output filter. In one embodiment, the interleaved converters are boost mode converters operating in continuous conduction mode boost converters. Various embodiments are disclosed.

US Patent:

7890551, Feb 15, 2011

Filed:

Jan 13, 2003

Appl. No.:

10/341811

Inventors:

Stephen Benelisha - Oakview CA, US
Brent Miller - Santa Clara CA, US
Barnaby Falls - Alameda CA, US
Chien Nguyen - Antioch CA, US
Amod P. Bodas - Cupertino CA, US

Assignee:

NetApp, Inc. - Sunnyvale CA

International Classification:

G06F 12/00
G06F 17/30

US Classification:

707821

Abstract:

Techniques and systems, including computer program products, for providing timely file change notification. In general, in one implementation, the technique includes a recorder that records changes to one or more files in a file system and a broker that receives and responds to change notification request from external applications. The recording of changes can be system- initiated and can pertain to changes occurring anywhere in the file system. The recorder and broker can perform asynchronously from each other and can persist independently of the external applications.