Title:
POWER SUPPLY CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2023/030274
Kind Code:
A1
Abstract:
The present application provides a power supply circuit, comprising a first power supply branch and a second power supply branch having overvoltage protection. An input end of the first power supply branch is connected to a first end of a first branch switch, an output end of the first power supply branch is connected to a power module for driving a motor of a washing machine, and a second end of the first branch switch is connected to an alternating current mains supply; an input end of the second power supply branch is connected to the alternating current mains supply, and an output end of the second power supply branch is connected to a processing chip of the washing machine; the output end of the first power supply branch is connected to the output end of the second power supply branch; when a switch is turned on, the first power supply branch outputs a first power supply voltage on the basis of the alternating current mains supply, such that the second power supply branch enters the overvoltage protection; and when the switch is turned off, the second power supply branch outputs a second power supply voltage on the basis of the alternating current mains supply. The conduction of the second power supply branch does not need to depend on the state of a door lock switch; and when it is detected that a system can enter an OTA state, an OTA can be directly entered by means of remote software control or built-in working logic, such that the operation convenience is achieved, and the security is ensured.
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| JPH04117144 | UNINTERRUPTIBLE POWER SUPPLY |
Inventors:
CHENG LONG (CN)
GAO QIUYING (CN)
LV YANG (CN)
LI ZUNREN (CN)
ZHAO MIN (CN)
GAO QIUYING (CN)
LV YANG (CN)
LI ZUNREN (CN)
ZHAO MIN (CN)
Application Number:
PCT/CN2022/115630
Publication Date:
March 09, 2023
Filing Date:
August 29, 2022
Export Citation:
Assignee:
CHONGQING HAIER WASHING MACHINE CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
International Classes:
H02J9/06
Domestic Patent References:
| WO2016101997A1 | 2016-06-30 | |||
| WO2017090099A1 | 2017-06-01 |
Foreign References:
| CN110829585A | 2020-02-21 | |||
| CN101242113A | 2008-08-13 | |||
| CN110620425A | 2019-12-27 | |||
| CN101763157A | 2010-06-30 | |||
| CN112968514A | 2021-06-15 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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