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Patent Searching and Data


Title:
LOW TEMPERATURE DRIFT REFERENCE VOLTAGE CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2018/149166
Kind Code:
A1
Abstract:
A low temperature drift reference voltage circuit, comprising a first voltage unit, a second voltage unit and a K-fold amplification unit. The first voltage unit is used to generate a first voltage, with a first end thereof being grounded. The K-fold amplification unit is used to amplify the first voltage by K-fold, with a first end thereof being connected to a second end of the first voltage unit, and a second end thereof being connected to a first end of the second voltage unit, where K is a constant greater than zero. The second voltage unit is used to generate a second voltage, with a first end thereof being connected to a current source circuit, and a second end thereof being connected to a third end of the first voltage unit and then serving as an output end of a reference voltage (VREF). The low temperature drift reference voltage circuit makes the relevance between an output reference voltage (VREF) and the temperature extremely low, and has a simple design for the circuit structure thereof and requires very few device types, thereby greatly reducing the design difficulty and risks, and having a very high practicality and versatility.

Inventors:
FENG YUMING (CN)
ZHANG LIANG (CN)
PENG XINCHAO (CN)
XU YIJUN (CN)
LI JIANXUN (CN)
XIE YUHUA (CN)
FAN SHIRONG (CN)
ZHOU JIA (CN)
YANG WENJIE (CN)
Application Number:
PCT/CN2017/106875
Publication Date:
August 23, 2018
Filing Date:
October 19, 2017
Export Citation:
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Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
G05F1/567
Foreign References:
CN106774594A2017-05-31
CN206479868U2017-09-08
CN104793689A2015-07-22
CN105892548A2016-08-24
CN102279611A2011-12-14
CN103246310A2013-08-14
CN205405320U2016-07-27
EP2977849A12016-01-27
Other References:
See also references of EP 3584667A4
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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