Invention Grant
US08446187B1 Apparatus and method for power-on reset circuit with current comparison
有权
具有电流比较功能的上电复位电路的装置和方法
- Patent Title: Apparatus and method for power-on reset circuit with current comparison
- Patent Title (中): 具有电流比较功能的上电复位电路的装置和方法
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Application No.: US11941858Application Date: 2007-11-16
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Publication No.: US08446187B1Publication Date: 2013-05-21
- Inventor: Alexander Burinskiy
- Applicant: Alexander Burinskiy
- Applicant Address: US CA Santa Clara
- Assignee: National Semiconductor Corporation
- Current Assignee: National Semiconductor Corporation
- Current Assignee Address: US CA Santa Clara
- Agent Eugene C. Conser; Wade J. Brady, III; Frederick J. Telecky, Jr.
- Main IPC: H03L7/00
- IPC: H03L7/00 ; H03K3/02
Abstract:
A power-on reset (POR) circuit is provided. The POR circuit includes a first current source, a second current source, and a current comparator. The first current source is arranged to provide a relatively supply-independent circuit. The second current source is arranged to provide a supply-dependent current. The current comparator is arranged to compare the relatively supply-independent circuit with the relatively supply-dependent current to provide a POR signal.
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