Title:
AIR CONDITIONER, POWER SUPPLY CIRCUIT THEREOF AND BUCK-BOOST CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/082553
Kind Code:
A1
Abstract:
Disclosed are an air conditioner, a power supply circuit thereof and a buck-boost control method therefor. When a switch circuit (110) is connected to a mains supply, if it is detected that a load (20) currently connected to a PFC circuit (120) is in a light load state, a target voltage required by the load (20) and a current bus voltage output by the PFC circuit (120) are acquired; and an on-time delay of the switch circuit (110) is adjusted according to the magnitude relationship between the current bus voltage and the target voltage, to reduce the difference between the bus voltage output by the PFC circuit (120) and the target voltage, so that the problem that the circuit loss of the air conditioner is high when the voltage required by the load is significantly lower than the bus voltage is solved.
Inventors:
HUO ZHAOJING (CN)
ZHANG JIANBIN (CN)
XU JINQING (CN)
CEN CHANG'AN (CN)
LI MING (CN)
ZHANG JIANBIN (CN)
XU JINQING (CN)
CEN CHANG'AN (CN)
LI MING (CN)
Application Number:
PCT/CN2023/083962
Publication Date:
April 25, 2024
Filing Date:
March 27, 2023
Export Citation:
Assignee:
GD MIDEA AIR CONDITIONING EQUIPMENT CO LTD (CN)
International Classes:
H02M1/42; H02M7/219
Foreign References:
| CN204031511U | 2014-12-17 | |||
| TW525340B | 2003-03-21 | |||
| CN103889131A | 2014-06-25 | |||
| CN106602861A | 2017-04-26 | |||
| US20100014329A1 | 2010-01-21 |
Attorney, Agent or Firm:
BEIJING ZHONGDA DEQUAN IP AGENCY CO., LTD. (CN)
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