CN205231814U - USB socket circuits of detectable cell -phone electric current - Google Patents

USB socket circuits of detectable cell -phone electric current Download PDF

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Publication number
CN205231814U
CN205231814U CN201521117554.6U CN201521117554U CN205231814U CN 205231814 U CN205231814 U CN 205231814U CN 201521117554 U CN201521117554 U CN 201521117554U CN 205231814 U CN205231814 U CN 205231814U
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China
Prior art keywords
port
integrated chip
null
electric current
usb socket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201521117554.6U
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Chinese (zh)
Inventor
张慧星
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Casco Automotive Suzhou Co Ltd
Original Assignee
Casco Automotive Suzhou Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Casco Automotive Suzhou Co Ltd filed Critical Casco Automotive Suzhou Co Ltd
Priority to CN201521117554.6U priority Critical patent/CN205231814U/en
Application granted granted Critical
Publication of CN205231814U publication Critical patent/CN205231814U/en
Active legal-status Critical Current
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Abstract

The utility model discloses a USB socket circuits of detectable cell -phone electric current, the circuit includes a NULL, the 2nd NULL, a NULL's second port with the 2nd NULL's first port all is connected with the VBUS of data line, a NULL's the 20 triport and the 24 port with the 2nd NULL's second port and third port are connected, be connected with a resistance that is used for overcurrent protection between a NULL and the 2nd NULL, a NULL the 9th, the tenth, the 11 port is connected with the power, it has the agreement of charging of going on mating with the cell -phone to embed among the NULL. The utility model discloses outstanding effect does: accessible NULL carries out the detection of electric current to the cell -phone of pegging graft to be provided with resistance overcurrent protection, thus the required electric current of discernment cell -phone that can be fine to the cell -phone go on better, quicker charging.

Description

Can the USB socket circuit of detection of handset electric current
Technical field
The utility model relates to a kind of socket circuit, particularly relate to a kind of can the USB socket circuit of detection of handset electric current.
Background technology
Automobile is more and more general in people's life, and we are in the epoch of one " movement ", mobile communication, mobile office etc., and these are moved needs without exception and could be worked by the supply of electricity.When we in the car, obtaining of electricity just needs the interface by data wire grafting automobile just can meet.
Utility model content
In view of prior art exists above-mentioned defect, the purpose of this utility model be to provide a kind of can the USB socket circuit of detection of handset electric current.
The purpose of this utility model, will be achieved by the following technical programs:
Can the USB socket circuit of detection of handset electric current, described circuit comprises the first integrated chip, second integrated chip, second port of described first integrated chip is all connected with the VBUS of data wire with the first port of described second integrated chip, 23 port of described first integrated chip is connected with the 3rd port with the second port of described second integrated chip with the 24 port, one is connected with for the resistance of overcurrent protection between described first integrated chip and the second integrated chip, the 9th of described first integrated chip, tenth, tenth Single port is connected with power supply, the charge protocol carrying out with mobile phone mating is built-in with in described first integrated chip.
Preferably, the 26 port of described first integrated chip connects a resistance, and the other end of described resistance is connected with 5V power supply.
Preferably, the 18 port of described first integrated chip connects a LED, and the other end of described LED is connected with a diode, and the other end of described diode is connected with 5V power supply.
Preferably, the 19 port of described first integrated chip, the 20 port, the 20 five-port and the 27 port ground connection, the 16 port ground connection of described first integrated chip.
The utility model gives prominence to effect: the detection by integrated chip, the mobile phone of grafting being carried out to electric current, and is provided with resistance overcurrent protection, well can identify the required electric current of mobile phone thus carry out better, faster charging to mobile phone.
Below just accompanying drawing in conjunction with the embodiments, is described in further detail embodiment of the present utility model, is easier to understand, grasp to make technical solutions of the utility model.
Accompanying drawing explanation
Fig. 1 is circuit loop schematic diagram of the present utility model.
Embodiment
The utility model disclose a kind of can the USB socket circuit of detection of handset electric current, as shown in Figure 1, described circuit comprises the first integrated chip 1, second integrated chip 2.Second port one 1 of described first integrated chip 1 is all connected with the VBUS of data wire with the first port 21 of described second integrated chip 2, can be charged by data wire to mobile phone.
23 port one 3 of described first integrated chip 1 is connected with the 3rd port 23 with second port 22 of the 24 port one 2 with described second integrated chip 2; one is connected with for the resistance of overcurrent protection between described first integrated chip 1 and the second integrated chip 2; be respectively the first overcurrent protection resistance 4; second overcurrent protection resistance 3, the 9th, the tenth, the tenth Single port of described first integrated core 1 is connected with power supply.
26 port of described first integrated chip 1 connects a resistance 5, and the other end of described resistance 5 is connected with 5V power supply.18 port of described first integrated chip 1 connects a LED, and the other end of described LED is connected with a diode 6, and the other end of described diode 6 is connected with 5V power supply.
19 port of described first integrated chip, the 20 port, the 20 five-port and the 27 port ground connection, the 16 port ground connection of described first integrated chip.
When data wire is connected with the USB interface in automobile, by the first integrated chip 1, the agreement in charge protocol and mobile phone is compared, and carry out the selection of agreement, if charger matched, then mobile phone will carry out charging to reduce the charging interval with maximum support electric current.If detect, charger does not mate, then charge with 500mA electric current.
The utility model still has numerous embodiments, all employing equivalents or equivalent transformation and all technical schemes formed, and all drops within protection range of the present utility model.

Claims (4)

1. can the USB socket circuit of detection of handset electric current, it is characterized in that: described circuit comprises the first integrated chip, second integrated chip, second port of described first integrated chip is all connected with the VBUS of data wire with the first port of described second integrated chip, 23 port of described first integrated chip is connected with the 3rd port with the second port of described second integrated chip with the 24 port, one is connected with for the resistance of overcurrent protection between described first integrated chip and the second integrated chip, the 9th of described first integrated chip, tenth, tenth Single port is connected with power supply, the charge protocol carrying out with mobile phone mating is built-in with in described first integrated chip.
2. according to claim 1 can the USB socket circuit of detection of handset electric current, it is characterized in that: the 26 port of described first integrated chip connects a resistance, the other end of described resistance is connected with 5V power supply.
3. according to claim 1 can the USB socket circuit of detection of handset electric current, it is characterized in that: the 18 port of described first integrated chip connects a LED, the other end of described LED is connected with a diode, and the other end of described diode is connected with 5V power supply.
4. according to claim 1 can the USB socket circuit of detection of handset electric current, it is characterized in that:
19 port of described first integrated chip, the 20 port, the 20 five-port and the 27 port ground connection, the 16 port ground connection of described first integrated chip.
CN201521117554.6U 2015-12-30 2015-12-30 USB socket circuits of detectable cell -phone electric current Active CN205231814U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521117554.6U CN205231814U (en) 2015-12-30 2015-12-30 USB socket circuits of detectable cell -phone electric current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201521117554.6U CN205231814U (en) 2015-12-30 2015-12-30 USB socket circuits of detectable cell -phone electric current

Publications (1)

Publication Number Publication Date
CN205231814U true CN205231814U (en) 2016-05-11

Family

ID=55906859

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201521117554.6U Active CN205231814U (en) 2015-12-30 2015-12-30 USB socket circuits of detectable cell -phone electric current

Country Status (1)

Country Link
CN (1) CN205231814U (en)

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