公开(公告)号：US20230273073A1

公开(公告)日：2023-08-31

申请号：US17994155

申请日：2022-11-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： HAEJUNG CHOI ,  KWANGHO KIM ,  JUNHEE SHIN ,  CHEOLHWAN LIM

IPC: G01K7/01

CPC classification number: G01K7/01 ,  G01K2219/00

Abstract: A temperature sensor includes a first selection circuit outputting one among temperature signals in response to a selection code. A reference voltage generator generates a reference voltage. A control circuit generates a control signal. A second selection circuit outputs the reference voltage and the temperature signal in response to the control signal indicating a voltage conversion condition is satisfied and outputs only the temperature signal in response to the control signal indicating the voltage conversion condition is not satisfied. A converter converts the reference voltage to a voltage digital code and the temperature signal to a temperature digital code in response to the control signal indicating the voltage conversion condition is satisfied and converts only the temperature signal to the temperature digital code in response to the control signal indicating the voltage conversion condition is not satisfied.

公开(公告)号：US20240103556A1

公开(公告)日：2024-03-28

申请号：US18370464

申请日：2023-09-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： CHEOLHWAN LIM ,  HWANSEOK YEO

IPC: G05F3/24 ,  G05F1/46 ,  G05F1/567

CPC classification number: G05F3/245 ,  G05F1/468 ,  G05F1/567

Abstract: A proportional-to-absolute-temperature current generating device includes a differential difference amplifier (DDA) that outputs a comparison signal based on a reference voltage, a first voltage, and a second voltage, a current source that generates a first current and a second current based on the comparison signal, a proportional-to-absolute-temperature voltage (VPTAT) generating unit that generates the first voltage based on the first current, and a complementary-to-absolute-temperature voltage (VCTAT) generating unit that generates the second voltage based on the second current. Each of the first current and the second current is a proportional-to-absolute-temperature current that increases in proportion to a temperature of the proportional-to-absolute-temperature current generating device.