Title:
CONTROL METHOD FOR CURRENT-LIMITING CONTROL CIRCUIT, AND ELECTRICAL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/095498
Kind Code:
A1
Abstract:
The present invention provides a control method for a current-limiting control circuit, and an electrical system. The current-limiting control circuit comprises a high-voltage side connected to a direct-current bus, a low-voltage side connected to a load, and an adjusting unit connected to the high-voltage side and the low-voltage side, the adjusting unit comprising at least one MOS transistor; the control method comprises: measuring a current I0 of the current-limiting control circuit, determining whether the current I0 is larger than a preset current I, and if yes, entering a current-limiting control mode to limit continuous increase of the current. Compared with the related art, in the present invention, current limiting is performed when an anomaly or a short circuit occurs in a device, such that the device and the system can be protected in time, and electrical fault expansion is prevented.
Inventors:
ZHAO ZHIGANG (CN)
LIAO JUNHAO (CN)
LAI YUANHUA (CN)
LIN BAOWEI (CN)
LIU XIA (CN)
WANG CHUNYANG (CN)
LIAO JUNHAO (CN)
LAI YUANHUA (CN)
LIN BAOWEI (CN)
LIU XIA (CN)
WANG CHUNYANG (CN)
Application Number:
PCT/CN2021/105781
Publication Date:
May 12, 2022
Filing Date:
July 12, 2021
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
H02H9/02; H02H7/26
Foreign References:
| CN109119981A | 2019-01-01 | |||
| CN108469570A | 2018-08-31 | |||
| CN112260246A | 2021-01-22 | |||
| CN107863749A | 2018-03-30 | |||
| KR101104126B1 | 2012-01-13 |
Other References:
See also references of EP 4164077A4
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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