Invention Grant
US08015419B2 Method and apparatus for soft start power gating with automatic voltage level detection
有权
用于自动电压检测的软启动电源门控的方法和装置
- Patent Title: Method and apparatus for soft start power gating with automatic voltage level detection
- Patent Title (中): 用于自动电压检测的软启动电源门控的方法和装置
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Application No.: US11469153Application Date: 2006-08-31
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Publication No.: US08015419B2Publication Date: 2011-09-06
- Inventor: Omid Rowhani , Vincent Ross
- Applicant: Omid Rowhani , Vincent Ross
- Applicant Address: CA Markham, Ontario
- Assignee: ATI Technologies ULC
- Current Assignee: ATI Technologies ULC
- Current Assignee Address: CA Markham, Ontario
- Agency: Vedder Price P.C.
- Main IPC: G06F1/00
- IPC: G06F1/00 ; H01L25/00 ; H03K17/00
Abstract:
A method and apparatus for selectively charging a secondary voltage rail includes selectively and partially charging a secondary voltage rail using at least one soft start power gate switch and using an initial power control indicator. The partially charged secondary voltage rail is selectively charged, using at least one main power gate switch, based on the initial power control indicator and a detected voltage on the secondary voltage rail. When the initial power control indicator is in a state representative of an initial power up command and when the detected voltage is greater than or equal to a predetermined voltage level, at least one main power gate switch is closed thereby charging the secondary voltage rail.
Public/Granted literature
- US20080059824A1 Method and Apparatus for Soft Start Power Gating with Automatic Voltage Level Detection Public/Granted day:2008-03-06
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