Title:
PHASE LOCK LOOP DEVICE, LOCKING METHOD FOR PHASE LOCK LOOP DEVICE AND RADAR SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/202087
Kind Code:
A1
Abstract:
Embodiments of the present application relate to the technical field of phase lock loops, and provides a phase lock loop device, a locking method for the phase lock loop device and a radar system. The phase lock loop device comprises a filter (10), a first power supply (20), a monitoring controller (30) and an oscillator (40). The output end of the filter (10) is coupled to the control end of the first power supply and is used for providing a drive control signal generated on the basis of the frequency phase deviation of a reference signal and a feedback signal, wherein the feedback signal is obtained after a frequency multiplication signal output by the phase lock loop device are subjected to frequency division processing. The first power supply (20) is coupled to the filter (10) and the oscillator (40) and is used for providing a power signal to the oscillator according to the drive control signal. The monitoring controller (30) is coupled to the first power supply (20) to acquire a sampling signal and is used for adjusting an electrical parameter of the oscillator (40) by detecting the sampling signal. The phase lock loop device is always in a locked state, and the stability and accuracy of the phase lock loop device are improved.
Inventors:
ZHANG YAOYAO (CN)
ZHOU WENTING (CN)
ZHOU WENTING (CN)
Application Number:
PCT/CN2022/137037
Publication Date:
October 26, 2023
Filing Date:
December 06, 2022
Export Citation:
Assignee:
CALTERAH SEMICONDUCTOR TECH SHANGHAI CO LTD (CN)
International Classes:
H03L7/085; H03L7/093; H03L7/099; H03L7/18; G01S7/02
Foreign References:
| CN114710153A | 2022-07-05 | |||
| CN107104666A | 2017-08-29 | |||
| CN210899136U | 2020-06-30 | |||
| CN109639272A | 2019-04-16 |
Attorney, Agent or Firm:
SHANGHAI CHENHAO INTELLECTUAL PROPERTY LAW FIRM GENERAL PARTNERSHIP (CN)
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