Invention Grant
US07671623B2 Device for managing the consumption peak of a domain on each powering-up
有权
用于在每次启动时管理域的消费峰值的设备
- Patent Title: Device for managing the consumption peak of a domain on each powering-up
- Patent Title (中): 用于在每次启动时管理域的消费峰值的设备
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Application No.: US11701973Application Date: 2007-02-02
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Publication No.: US07671623B2Publication Date: 2010-03-02
- Inventor: Fabrice Blisson
- Applicant: Fabrice Blisson
- Applicant Address: FR Montrouge
- Assignee: STMicroelectronics S.A.
- Current Assignee: STMicroelectronics S.A.
- Current Assignee Address: FR Montrouge
- Agency: Gardere Wynne Sewell LLP
- Priority: FR0601015 20060203
- Main IPC: H03K17/16
- IPC: H03K17/16

Abstract:
A device is provided for managing the current consumption peak on each powering-up of a domain in an electronic circuit. A plurality of domains are present and a global power supply grid provides power. Each domain is selectively supplied by a local supply grid connected to the global supply grid via a plurality of commanded switch transistors. A pre-charge transistor is used to pre-charge a domain at powering-up. A command circuit controls operation of the switch transistors through an analog command signal whose slew rate is controlled to ensure that switch transistor conduction is delayed to enable the pre-charge circuit to charge the domain to a sufficient degree that activation of the switch transistor will not draw excessive current. A detection circuit is configured to compare the instant value of the supply voltage with a fixed reference supply voltage and/or to compare, with the value of a fixed command voltage, the instant value of the differential voltage between the global supply voltage and the command voltage.
Public/Granted literature
- US20070257705A1 Device for managing the consumption peak of a domain on each powering-up Public/Granted day:2007-11-08
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