公开(公告)号：US20130272341A1

公开(公告)日：2013-10-17

申请号：US13753650

申请日：2013-01-30

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sang Gug LEE ,  Ohyong JUNG ,  Seungjin KIM ,  Seok Kyun HAN

IPC: G01K7/34

CPC classification number: G01K7/34 ,  G01K7/01 ,  G01K2219/00

Abstract: A temperature sensor that senses a temperature on the basis of a relaxation oscillator, includes: a bias circuit unit that outputs a bias current increasing with an increase in temperature; a capacitor voltage unit that charges a capacitor with the bias current and discharges the current when receiving a control signal; a pulse generating unit that outputs a pulse when the voltage of the capacitor is higher than a reference voltage, changes the pulse width of the pulse, and transmits the pulse corresponding to the control signal to the capacitor voltage unit; and a counter unit that counts and outputs, as a digital value, the number of pulses outputted from the pulse generating unit, on the basis of a reference frequency.

Abstract translation: 基于张弛振荡器检测温度的温度传感器包括：偏置电路单元，其输出随温度升高而增加的偏置电流; 电容器电压单元，其利用偏置电流对电容器充电，并在接收到控制信号时对电流进行放电; 脉冲发生单元，当电容器的电压高于参考电压时输出脉冲，改变脉冲的脉冲宽度，并将与控制信号对应的脉冲发送到电容器电压单元; 以及计数器单元，其基于参考频率对从脉冲发生单元输出的脉冲数进行数字值的计数和输出。