Title:
BIDIRECTIONAL ADAPTIVE CLOCK CIRCUIT SUPPORTING WIDE FREQUENCY RANGE
Document Type and Number:
WIPO Patent Application WO/2020/248318
Kind Code:
A1
Abstract:
A bidirectional adaptive clock circuit supporting a wide frequency range, belonging to the technical field of basic electronic circuits. Said circuit consists of a phase clock generation module, a phase clock selection module, an adaptive clock stretching or compression amount adjustment module and a control module. The adaptive clock stretching or compression amount adjustment module is able to monitor delay information of a critical path in a chip in real time, and feed the information back to the control module. Upon reception of a clock stretching or compression enable signal and a stretching or compression scale signal, the control module selects a target phase clock from clocks generated by the phase clock generation module, and completes rapid adjustment of an adaptive clock within a current period. The present invention does not require complicated gate devices, and has a stable structure, a low power consumption area cost, and a small impact caused by a PVT environment; the circuit has a simplified structure, is easy to implement, has a wide operating frequency and a short response time, and is suitable for an adaptive voltage frequency adjustment circuit based on on-line time sequence monitoring.
Inventors:
SHAN WEIWEI (CN)
LU MINYI (CN)
WAN LIANG (CN)
SHI LONGXING (CN)
LU MINYI (CN)
WAN LIANG (CN)
SHI LONGXING (CN)
Application Number:
PCT/CN2019/095202
Publication Date:
December 17, 2020
Filing Date:
July 09, 2019
Export Citation:
Assignee:
UNIV SOUTHEAST (CN)
International Classes:
H03K5/14
Foreign References:
| CN106026994A | 2016-10-12 | |||
| CN105978539A | 2016-09-28 | |||
| CN103500243A | 2014-01-08 | |||
| CN103997338A | 2014-08-20 | |||
| US5963070A | 1999-10-05 |
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD (CN)
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