Title:
TRIMMING CIRCUIT, AND CHIP AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/098726
Kind Code:
A1
Abstract:
A trimming circuit (1303), comprising: an operational amplifier (701), a first adjustment circuit (703), a resistance network (702) and a second adjustment circuit (704). The trimming circuit (1303) is used for performing fine tuning and correction on a reference voltage value in the circuit, such that the reference voltage value is closer to a preset voltage value expected by a target; it is ensured that the total resistance value of the whole circuit remains constant, and a small number of resistors are used; and the total area for a circuit design can be significantly reduced, and the adjustable precision is higher.
Inventors:
ZHONG YUE (CN)
LV XIAOKANG (CN)
LV XIAOKANG (CN)
Application Number:
PCT/CN2023/096795
Publication Date:
May 16, 2024
Filing Date:
May 29, 2023
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G05F1/56
Foreign References:
| CN114546014A | 2022-05-27 | |||
| CN115061525A | 2022-09-16 | |||
| CN114814556A | 2022-07-29 | |||
| CN208351358U | 2019-01-08 | |||
| CN105912059A | 2016-08-31 | |||
| CN217133621U | 2022-08-05 | |||
| JP2009037372A | 2009-02-19 | |||
| JP2007219856A | 2007-08-30 |
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