Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
POWER SUPPLY CIRCUIT, RELAY DEVICE, AND POWER-OVER-ETHERNET SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/109653
Kind Code:
A1
Abstract:
The present application discloses a power supply circuit, a relay device, and a Power-over-Ethernet system, pertaining to the technical field of electronics. A positive output terminal of each rectifier module in the power supply circuit is connected to a positive power supply pin, and a negative output terminal of each rectifier module is connected to a first terminal of a switch control module. The positive power supply pin is connected to a positive electrode of a relay circuit in the relay device. The switch control module has a second terminal connected to a negative power supply pin and a control terminal connected to the positive power supply pin, and the negative power supply pin is connected to a negative electrode of the relay circuit, wherein when an output voltage of the rectifier module is greater than a pre-determined threshold, the switch control module controls formation of a conducting path between the first terminal and the second terminal. The power supply circuit supplies power to the relay circuit of the relay device without adding power supply wire routing and without affecting the normal supply of power to a powered device by a power sourcing equipment unit, thereby improving flexibility when applying PoE technology.

Inventors:
WANG, Weimin (No. 555, Qianmo Road Binjiang Distric, Hangzhou Zhejiang 1, 310051, CN)
Application Number:
CN2018/098538
Publication Date:
June 13, 2019
Filing Date:
August 03, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HANGZHOU HIKVISION DIGITAL TECHNOLOGY CO., LTD. (No. 555, Qianmo Road Binjiang Distric, Hangzhou Zhejiang 1, 310051, CN)
International Classes:
H02P5/74; H02M5/458
Foreign References:
CN207460205U2018-06-05
CN207603637U2018-07-10
CN105375827A2016-03-02
CN206250959U2017-06-13
US20030164359A12003-09-04
CN1770890A2006-05-10
CN1614855A2005-05-11
Attorney, Agent or Firm:
PATENTSINO IP FIRM (Suite 413, Shang Fang BuildingNo. 27, North Third Ring Road Middle, Xicheng District, Beijing 9, 100029, CN)
Download PDF: