Title:
ADAPTIVE OVERSHOOT-VOLTAGE SUPPRESSION CIRCUIT, REFERENCE CIRCUIT, CHIP AND COMMUNICATION TERMINAL
Document Type and Number:
WIPO Patent Application WO/2023/005778
Kind Code:
A1
Abstract:
An adaptive overshoot-voltage suppression circuit (100), a reference circuit, a chip and a communication terminal. The adaptive overshoot-voltage suppression circuit (100) comprises an overshoot-voltage suppression unit (1001) and a voltage-current conversion unit (1002), wherein an input end of the overshoot-voltage suppression unit (1001) is connected to a preset sampling point on a reference circuit to be tested, an output end of the overshoot-voltage suppression unit (1001) is connected to an input end of the voltage-current conversion unit (1002), and an output end of the voltage-current conversion unit (1002) is connected to a preset adjustment point on said reference circuit. A transient high-frequency induced voltage is generated according to a sampling voltage that is output by said reference circuit and is detected in real time, and same is converted into a corresponding pull-up current, and the pull-up current is injected into said reference circuit and is superimposed with a pull-down starting current of said reference circuit, such that a non-linear starting current of said reference circuit at a starting moment is reduced, thereby effectively suppressing an overshoot quick response for a reference voltage that is output by said reference circuit, while ensuring that said reference circuit meets a timing requirement.
Inventors:
WANG YONGSHOU (CN)
CHEN CHENG (CN)
LI CHUNLING (CN)
GAO CHENYANG (CN)
CHEN CHENG (CN)
LI CHUNLING (CN)
GAO CHENYANG (CN)
Application Number:
PCT/CN2022/106888
Publication Date:
February 02, 2023
Filing Date:
July 20, 2022
Export Citation:
Assignee:
VANCHIP TIANJIN TECH CO LTD (CN)
International Classes:
G05F1/56
Foreign References:
| CN113311896A | 2021-08-27 | |||
| CN113126688A | 2021-07-16 | |||
| CN101814833A | 2010-08-25 | |||
| CN109656299A | 2019-04-19 | |||
| CN101881982A | 2010-11-10 | |||
| CN103677038A | 2014-03-26 | |||
| CN107870649A | 2018-04-03 | |||
| JP2009053783A | 2009-03-12 | |||
| JP2016157231A | 2016-09-01 |
Attorney, Agent or Firm:
BELJING GENIUS ESSEN INTELLECTUAL PROPERTY OFFICE (CN)
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