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)
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:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
G05F1/567
Foreign References:
CN106774594A | 2017-05-31 | |||
CN206479868U | 2017-09-08 | |||
CN104793689A | 2015-07-22 | |||
CN105892548A | 2016-08-24 | |||
CN102279611A | 2011-12-14 | |||
CN103246310A | 2013-08-14 | |||
CN205405320U | 2016-07-27 | |||
EP2977849A1 | 2016-01-27 |
Other References:
See also references of EP 3584667A4
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
Download PDF: