Title:
CONTROLLER AND CONTROL SYSTEM FOR FREQUENCY CONVERTER, AND ELECTRICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/060622
Kind Code:
A1
Abstract:
Disclosed in the present disclosure are a controller and control system for a frequency converter, and an electrical device. The controller comprises: an amplification circuit, which is used for performing first-stage amplification on an input signal; a selection circuit, which is connected to the amplification circuit, and is used for performing second-stage amplification on an output signal of the amplification circuit according to a selected target resistor among a plurality of resistors, wherein each of the plurality of resistors is adapted to one of a variety of powers of a frequency converter; and a control circuit, which is connected to the selection circuit, and is used for selecting, from among the plurality of resistors, the target resistor, which is adapted to a target power.
Inventors:
HUANG MENG (CN)
YANG YONGYUE (CN)
JIANG YINGYI (CN)
YANG YONGYUE (CN)
JIANG YINGYI (CN)
Application Number:
PCT/CN2023/091261
Publication Date:
March 28, 2024
Filing Date:
April 27, 2023
Export Citation:
Assignee:
NAT ENERGY INTERNET INNOVATION CENTER GUANGDONG CO LTD (CN)
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
H02M5/00; F24F11/88
Foreign References:
| CN115473443A | 2022-12-13 | |||
| CN203554303U | 2014-04-16 | |||
| CN202652096U | 2013-01-02 | |||
| CN210627166U | 2020-05-26 | |||
| KR20120045385A | 2012-05-09 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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