发明申请
US20130135130A1 METHOD AND SYSTEM FOR AUTO-RANGING ANALOG-TO-DIGITAL CONVERTER FOR CURRENT SENSING
有权
用于电流传感的自动调节模数转换器的方法和系统
- 专利标题: METHOD AND SYSTEM FOR AUTO-RANGING ANALOG-TO-DIGITAL CONVERTER FOR CURRENT SENSING
- 专利标题(中): 用于电流传感的自动调节模数转换器的方法和系统
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申请号: US13307022申请日: 2011-11-30
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公开(公告)号: US20130135130A1公开(公告)日: 2013-05-30
- 发明人: Srinivas K. Pulijala
- 申请人: Srinivas K. Pulijala
- 申请人地址: US NY HAUPPAGUE
- 专利权人: STANDARD MICROSYSTEMS CORPORATION
- 当前专利权人: STANDARD MICROSYSTEMS CORPORATION
- 当前专利权人地址: US NY HAUPPAGUE
- 主分类号: H03M1/38
- IPC分类号: H03M1/38
摘要:
Embodiments of the present disclosure provide a method and system for an auto-ranging analog-to-digital converter (ADC) for dynamically scaling inputs to an ADC. The auto-ranging ADC includes a dynamically configurable transistor arrangement for delivering a load current and a replica device for replicating the load current. A current sense resistor generates a replicated load voltage based on the replicated current. The ADC generates a digital value based on the replicated load voltage. The auto-ranging ADC also includes an auto-ranging controller for dynamically configuring the transistor arrangement based on the digital value to scale the inputs to the ADC.