发明申请
- 专利标题： CALIBRATED TEMPERATURE SENSING SYSTEM
- 专利标题（中）： 校准温度传感系统
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申请号： US14634371申请日： 2015-02-27
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公开(公告)号： US20160252409A1公开(公告)日： 2016-09-01
- 发明人: Li Lu , Masoud Roham , Liang Dai , Anand Meruva
- 申请人： QUALCOMM, Incorporated
- 主分类号： G01K19/00
- IPC分类号： G01K19/00 ; G01K7/22
摘要：
Systems and methods for sensing temperature on a chip are described herein. In one aspect, a temperature sensing system includes a sensing circuit with matching diode devices for providing corresponding diode voltages proportional to currents through the diode devices. The system also includes a digital code calculation unit for generating a plurality of digital code values based on first and second reference voltages and the diode voltages and a digital calibration engine configured for computing a calibrated temperature based on the plurality of digital codes. The system further includes a switching circuit for routing the diode voltages, during first and second times, to diode voltage input terminals of the digital code calculation unit.
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