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Patent Searching and Data


Title:
MEASUREMENT CIRCUIT, MEASUREMENT METHOD IMPLEMENTED BY SAME, AND TEMPERATURE SENSOR
Document Type and Number:
WIPO Patent Application WO/2023/155062
Kind Code:
A1
Abstract:
Provided is a measurement circuit which can be applied to a temperature sensor and is in direct proportion to absolute temperature. The measurement circuit is provided with a first measurement output terminal (23) and a second measurement output terminal (24). The measurement circuit comprises: a plurality of measurement elements (35) for measuring an object to be measured to obtain measurement results, and a switch assembly (34), wherein each measurement element (35) is connected to the first measurement output terminal (23) or the second measurement output terminal (24) by means of the switch assembly (34), and the first measurement output terminal (23) and the second measurement output terminal (24) are used for outputting the measurement results; and the switch assembly (34) is configured to: within any time period, connect at least one measurement element (35) to the first measurement output terminal (23), and connect the remaining measurement elements (35) to the second measurement output terminal (24). By performing dynamic compensation on the detection results of the detection elements (35), a mismatch problem caused by fixedly connecting various detection elements (35) to one output terminal is avoided, and detection errors are reduced.

Inventors:
CHENG SHUDONG (CN)
ZHANG NANGENG (CN)
Application Number:
PCT/CN2022/076444
Publication Date:
August 24, 2023
Filing Date:
February 16, 2022
Export Citation:
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Assignee:
CANAAN CREATIVE SH CO LTD (CN)
International Classes:
G01K7/01
Foreign References:
US20100219879A12010-09-02
CN107202649A2017-09-26
CN113834578A2021-12-24
CN101762336A2010-06-30
CN106656183A2017-05-10
CN103256995A2013-08-21
US20210050829A12021-02-18
CN101226414A2008-07-23
Attorney, Agent or Firm:
TEE&HOWE INTELLECTUAL PROPERTY ATTORNEYS (CN)
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