Title:
INTERFACE CIRCUIT AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/192098
Kind Code:
A1
Abstract:
An interface circuit and an electronic device. The interface circuit comprises a power supply input end, an access recognition circuit (10), a voltage detection circuit (20), a switch circuit (30), a control circuit (40), and a power supply output end. The power supply input end, an input end of the access recognition circuit (10), an input end of the voltage detection circuit (20), and an input end of the switch circuit (30) are interconnected; an output end of the access recognition circuit (10) is connected with a first detection end of the control circuit (40); an output end of the voltage detection circuit (20) is connected with a second detection end of the control circuit (40); a controlled end of the switch circuit (30) is connected with a controlling end of the control circuit (40); an output end of the switch circuit (30) is connected with the power supply output end; the control circuit (40) is used for controlling on and off of the switch circuit (30) and outputting a power supply voltage inputted by an external power supply when the power supply voltage inputted from the power supply input end is within a preset range. The technical solution has the characteristic of high reliability.
Inventors:
CAO ZHENMIN (CN)
Application Number:
PCT/CN2017/091890
Publication Date:
October 25, 2018
Filing Date:
July 05, 2017
Export Citation:
Assignee:
SHENZHEN YUNDING INFORMATION TECH CO LTD (CN)
International Classes:
H03K19/0175
Foreign References:
| CN105591356A | 2016-05-18 | |||
| CN102035169A | 2011-04-27 | |||
| CN203151069U | 2013-08-21 | |||
| CN206099296U | 2017-04-12 | |||
| US7609049B1 | 2009-10-27 |
Attorney, Agent or Firm:
CENFO INTELLECTUAL PROPERTY AGENCY (CN)
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