Title:
TRANSFORMER SHORT-CIRCUIT PROTECTION CIRCUIT AND TELEVISION
Document Type and Number:
WIPO Patent Application WO/2021/109641
Kind Code:
A1
Abstract:
Provided are a transformer short-circuit protection circuit and a television. The transformer short-circuit protection circuit comprises a detection sub-circuit and a switch sub-circuit, wherein a first detection end of the detection sub-circuit is connected to a first end of a secondary coil of a first transformer, a second detection end of the detection sub-circuit is connected to a second end of a secondary coil of a second transformer that is connected to the first transformer in parallel, an output end of the detection sub-circuit is connected to an input end of the switch sub-circuit, and an output end of the switch sub-circuit is connected to a power supply circuit; the detection sub-circuit is used for switching on the switch sub-circuit when it is detected that either one of the first transformer and the second transformer, which are connected, is short-circuited; and the switch sub-circuit is used for outputting a high-level signal to the power supply circuit after being switched on, so as to switch off a power supply source in the power supply circuit.
Inventors:
SU BIN (CN)
LI JINLE (CN)
ZHENG HUANWEI (CN)
LI JINLE (CN)
ZHENG HUANWEI (CN)
Application Number:
PCT/CN2020/112214
Publication Date:
June 10, 2021
Filing Date:
August 28, 2020
Export Citation:
Assignee:
SHENZHEN TCL DIGITAL TECH LTD (CN)
International Classes:
H02H7/04
Foreign References:
| CN210724194U | 2020-06-09 | |||
| CN101145320A | 2008-03-19 | |||
| CN203368003U | 2013-12-25 | |||
| CN201008094Y | 2008-01-16 | |||
| JP2003061242A | 2003-02-28 |
Attorney, Agent or Firm:
CENFO INTELLECTUAL PROPERTY AGENCY (CN)
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