Title:
RING VOLTAGE-CONTROLLED OSCILLATOR AND DRIVING METHOD THEREFOR, PHASE-LOCKED LOOP, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/155485
Kind Code:
A1
Abstract:
Embodiments of the present application relate to the technical field of radio frequencies, and provide a ring voltage-controlled oscillator and a driving method therefor, a phase-locked loop, and an electronic device, used for solving the problem of how to improve the power supply rejection ratio of the ring voltage-controlled oscillator. The ring voltage-controlled oscillator comprises: a switching transistor, wherein a gate electrode of the switching transistor is coupled to a voltage control end, a first electrode of the switching transistor is coupled to a power supply voltage end, and a second electrode of the switching transistor is coupled to an oscillation circuit; a noise amplification circuit, wherein an input end of the noise amplification circuit is coupled to the power supply voltage end, and an output end of the noise amplification circuit is coupled to a substrate electrode of the switching transistor; and the oscillation circuit, used for generating a clock signal according to the output of the second electrode of the switching transistor.
Inventors:
DAI XIAODAN (CN)
Application Number:
PCT/CN2022/129329
Publication Date:
August 24, 2023
Filing Date:
November 02, 2022
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H03L7/099
Foreign References:
| CN108933594A | 2018-12-04 | |||
| US20020186072A1 | 2002-12-12 | |||
| CN106209086A | 2016-12-07 | |||
| CN106160738A | 2016-11-23 | |||
| US20020101292A1 | 2002-08-01 |
Attorney, Agent or Firm:
BEIJING ZBSD PATENT&TRADEMARK AGENT LTD. (CN)
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