CN110417085A - A kind of system and method whether being inserted into for detecting apple equipment - Google Patents

A kind of system and method whether being inserted into for detecting apple equipment Download PDF

Info

Publication number
CN110417085A
CN110417085A CN201910673001.5A CN201910673001A CN110417085A CN 110417085 A CN110417085 A CN 110417085A CN 201910673001 A CN201910673001 A CN 201910673001A CN 110417085 A CN110417085 A CN 110417085A
Authority
CN
China
Prior art keywords
detection unit
signal
vbus
unit
plug
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.)
Pending
Application number
CN201910673001.5A
Other languages
Chinese (zh)
Inventor
戴加良
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.)
Shenzhen Injoinic Technology Co Ltd
Original Assignee
Shenzhen Injoinic Technology 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 Shenzhen Injoinic Technology Co Ltd filed Critical Shenzhen Injoinic Technology Co Ltd
Priority to CN201910673001.5A priority Critical patent/CN110417085A/en
Publication of CN110417085A publication Critical patent/CN110417085A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0036Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits

Abstract

The system and method whether the invention discloses a kind of is inserted into for detecting apple equipment, the system comprises logic control element, VBUS plug detection unit, VBUS power supply unit, DP plug detection unit, DM plug detection unit, the first signal debounce, on along detection unit, second signal debounce, on along detection unit and third signal debounce, on along detection unit;The present invention solves and is first inserted into apple curve, after underloading or key shutdown, then the problem of the equipment such as lightning mouthfuls of insertion iPhones cannot charge.

Description

A kind of system and method whether being inserted into for detecting apple equipment
Technical field
The present invention relates to charging equipment technical fields, and in particular to a kind of system whether being inserted into for detecting apple equipment And method.
Background technique
It is filled etc. in application in mobile power source, vehicle, it, can be by the USB port of the charging equipments such as no catcher machine in order to save power consumption Power supply output is closed, when having detected the insertion of the charging equipments such as mobile phone, USB port power supply is then turned on and charges the phone.
Or in the application of more USB fast charge delivery outlets, for the USB port of the charging equipments such as no access mobile phone, also need Its delivery outlet power supply is closed, until having detected mobile phone access, is then turned on corresponding delivery outlet power supply, it in this way could be more Fast charge switching is carried out between a USB port.
For general android mobile phone, charging cable is typically all common USB cable, is divided into two kinds, one is USB A mouthfuls turn microUSB mouthfuls, and one is A mouthfuls of USB to turn typec USB port.Turn micro USB port for A mouthfuls of USB, it is general to wrap Include VBUS, D-, D+, ID, GND;Turn typec USB port for A mouthfuls of USB, generally comprises VBUS, D-, D+, CC, GND, wherein CC Line does not have at A mouthfuls of ends, is pulled upward to VBUS by a resistance in wire internal, has CC line at tyepc mouthfuls of ends.
Typically no IC in generic USB charge cable, so this kind of cable is inserted separately into the USB port of insertion detection function In, it will not wake up USB port, after the other end of cable accesses mobile phone, can just wake up USB port and start to charge the phone, charge Circuit is as shown in Figure 1.
And for the lightning interface of apple equipment, the cable that USB turns lightning has individually done in Apple Inc., and And there is an IC among the cable.The IC can the power consumption on VBUS, be equivalent to an impedance between VBUS to GND.
According to the insertion detection technique of patent " a kind of USB insertion automatic identification and power supply system " description, filled when apple Electric wire (A mouthfuls of apple USB turn lightning mouthfuls or typec mouthfuls of apple and turn lightning mouthfuls) insertion band insertion detection function USB port in when, USB port power supply will be waken up;And the charging cable of common andriod mobile phone is inserted into band insertion detection function USB port in, will not wake up USB port power supply.The difference of the two is that in apple charging cable there is one between VBUS and GND Impedance, and there is no this impedance in andriod charging cable, between VBUS and GND.
For the USB port with insertion detection function, generally all have the function of detecting whether VBUS load current is lightly loaded. When detecting that VBUS load current is less than the underloading electric current of setting (such as 50mA) and after continuing for some time (such as 32 seconds), Think that mobile phone charging fills with, the output of USB port power supply will be automatically closed, to reduce system power dissipation.Or works as and plug in mobile phone Or when apple charging cable, when key positive closing USB port power supply occurs, the output of USB port power supply can be also closed.When plugging in mobile phone Or when apple charging cable closing USB port power supply, the insertion detection circuit of USB port does not wake up USB port out-put supply, until detection When being perhaps inserted into mobile phone or apple curve after apple curve is extracted to mobile phone, USB port out-put supply is just waken up.
Above-mentioned way has a problem that apple charging cable.It is first inserted when in the USB port with insertion detection function When entering apple charging cable, USB port out-put supply can be waken up, when a period of time underloading or key closing USB port power supply, USB Mouth insertion detection circuit constant testing is to there is load to connect in USB port, because VBUS to GND has an impedance on apple curve, this When in the mouth end lightning of the apple curve insertion equipment such as iPhone, will can not wake up USB port out-put supply, can not The equipment charges such as bio-occlusion iPhone.
Summary of the invention
Based on the deficiencies of the prior art, the present invention provides a kind of for detecting the system and side whether apple equipment is inserted into Method is first inserted into apple curve to solve, after underloading or key shutdown, then in equipment such as lightning mouthfuls of insertion iPhones The problem of cannot charging.
The technical solution of the present invention is as follows:
A kind of system whether being inserted into for detecting apple equipment, it is characterised in that: inserted including logic control element, VBUS Pull out detection unit, VBUS power supply unit, DP plug detection unit, DM plug detection unit, the first signal debounce, upper edge detection list Member, second signal debounce, on along detection unit and third signal debounce, on along detection unit;
The DP plugs detection unit, and for detecting whether have charging equipment insertion on D+ line, the DP plug detection is single The signal input part of member is connect with D+ line, and the signal output end of the DP plug detection unit and the first signal debounce, upper edge are examined Survey the input terminal connection of unit;
The DM plugs detection unit, and for detecting whether have charging equipment insertion on D- line, the DM plug detection is single The signal input part of member is connect with D- line, and the signal output end and second signal debounce of the DM plug detection unit, upper edge are examined Survey the input terminal connection of unit;
The signal input part of the VBUS plug detection unit is connect with VBUS line, the letter of the VBUS plug detection unit Number output end and third signal debounce, on connect along the input terminal of detection unit;
Three signal debounces, on connect respectively with logic control element along the output end of detection unit, the logic control Unit be respectively used to receive three signal debounces, on along detection unit feedback signal;
The logic control element is also connect with VBUS power supply unit, for sending out after VBUS power supply unit is closed and powered Send the signal of instruction VBUS power supply shutdown to logic control element;
The logic control element also plugs detection unit with the DP respectively and DM plug detection unit detection connects, and uses In after the signal for receiving the shutdown of VBUS power supply unit, control is opened VBUS plug detection unit, DP plug detection unit, DM and is inserted Detection unit detection is pulled out, monitoring VBUS plug detection unit, DP plug detection unit and DM plug three units of detection unit are No to have insertion signal to provide, when having signal insertion, three units export high level respectively, and when three signal debounces, upper edge inspection Survey unit in three signals have any one output be high level when, open VBUS power supply unit power supply.
Further, the DP plug detection unit is identical with the circuit structure of DM plug detection unit, includes an electricity Comparator is pressed, the output end of the voltage comparator is the output end of respective corresponding unit, the positive terminal of the voltage comparator Or negative phase end is connected with the output end that threshold voltage generates unit, it is the voltage comparator that the threshold voltage, which generates unit, Positive terminal or negative phase end provide reference threshold voltage, and corresponding, the negative phase end or positive terminal of the voltage comparator respectively correspond Connect the D+ line or D- line of USB line, the output end of the voltage comparator and corresponding signal debounce, on along the defeated of detection unit Enter end unit connection, the negative phase end or positive terminal of the voltage comparator are also connected with a power module, the power module by Logic control element control is opened, and the voltage comparator is used in the Voltage unbalance for detecting its positive terminal and negative phase end When, output detects the high level signal of equipment insertion.
Further, the VBUS plug detection unit, VBUS power supply unit, the DP plug detection unit, the DM Plug detection unit, the logic control element are integrated in one piece of IC chip.
Further, the threshold voltage generates unit and provides the reference voltage of 2V for the voltage comparator.
A method of for detecting whether apple equipment is inserted into, the method, which is based on one kind for detecting apple equipment, is The system of no insertion, comprising:
Step 1, after VBUS power supply unit, which is closed, powers, the signal OFF for sending instruction VBUS power supply shutdown gives logic control Unit processed;
Step 2, it after logic control element receives signal OFF, enables and controls to open VBUS plug detection unit, DP plug Detection unit and DM plug detection unit, and enable to open simultaneously corresponding signal debounce, on along detection unit, when VBUS is plugged After detection unit, DP plug detection unit, DM plug detection unit all enable, monitor whether that insertion signal provides;
Step 3, it is monitored when VBUS plugs detection unit, DP plug detection unit, DM plug detection unit any cell When having insertion signal, corresponding signal debounce, on along detection unit export high level to logic control element, wake up VBUS and power Unit power supply.
The invention has the benefit that it is first inserted into apple curve, after underloading or key shutdown, then it is slotting at lightning mouthfuls Enter the problem of equipment such as iPhone cannot charge.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the prior art;
Fig. 2 is system structure diagram of the invention;
Fig. 3 is the circuit structure diagram that DP plugs detection unit;
Fig. 4 is one of threshold voltage generation circuit structure chart;
Fig. 5 is the two of threshold voltage generation circuit structure chart.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
As Figure 2-3, a kind of system whether being inserted into for detecting apple equipment, including logic control element, VBUS Plug detection unit, VBUS power supply unit, DP plug detection unit, DM plug detection unit, the first signal debounce, upper edge detection Unit, second signal debounce, on along detection unit and third signal debounce, on along detection unit;
The DP plugs detection unit, and for detecting whether have charging equipment insertion on D+ line, the DP plug detection is single The signal input part of member is connect with D+ line, signal output end and the first signal debounce, on connect along the input terminal of detection unit;
The DM plugs detection unit, and for detecting whether have charging equipment insertion on D- line, the DM plug detection is single The signal input part of member is connect with D-, signal output end and second signal debounce, on connect along the input terminal of detection unit;
The signal input part of the VBUS plug detection unit is connect with VBUS line, and signal output end is gone with third signal Tremble, on along detection unit input terminal connect;
Three signal debounces, on connect respectively with logic control element along the output end of detection unit, the logic control Unit be respectively used to receive three signal debounces, on along detection unit feedback signal;
The logic control element further includes three enabled output ends, and each enabled output end plugs simultaneously for VBUS respectively Detection unit, DP plug detection unit, DM plug detection unit and its corresponding signal debounce, on provided along detection unit it is enabled Signal;
The logic control element is also connect with VBUS power supply unit, for sending out after VBUS power supply unit is closed and powered Send the signal of instruction VBUS power supply shutdown to logic control element;
The major function effect of the logic control element is as follows:
After VBUS power supply unit, which is closed, powers, the signal OFF of instruction VBUS power supply shutdown is sent to logic control element; After logic control element receives OFF signal, VBUS plug detection unit (EN_VBUSDET=1), DP plug detection are opened in control Unit (EN_D+DET=1), DM plug detection unit (EN_D-DET=1), when VBUS plugs detection unit, DP plug detection list After member, DM plug detection unit all enable, monitor whether that insertion signal provides always.
Work as D-_PLUGIN_D, D+_PLUGIN_D, as soon as tri- signals of VBUS_PLUGIN_D have when being 1, illustrates to have negative Insertion is carried, the power supply of VBUS power supply unit is opened.
The circuit structure of the embodiment of the present invention DP plug detection unit and DM plug detection unit is identical, includes an electricity Comparator is pressed, the output end of the voltage comparator is the output end of the corresponding unit, and the voltage comparator of the present embodiment is just Phase end is connected with the output end that threshold voltage generates unit, and the threshold voltage generates the positive that unit is the voltage comparator End provides reference threshold voltage, and as shown in Figures 4 and 5, the threshold voltage generates unit and can be provided by two kinds of divider resistances, described Threshold voltage generates unit and provides reference voltage for the voltage comparator;DP plugs the negative of the voltage comparator in detection unit Phase end connects the D+ of USB line, and DM plugs the D- of the negative phase end connection USB line of the voltage comparator in detection unit, certainly, this It is one of connection type, threshold voltage generates unit and USB line and enable end and can also exchange and connect according to above-mentioned connection type Connecing the positive terminal and negative phase end in voltage comparator, i.e. threshold voltage generates the negative phase end that unit is connected to voltage comparator, The remaining positive terminal for being connected to voltage comparator, the output end of voltage comparator and corresponding signal debounce, on along detection unit End unit connection is inputted, the negative phase end of the voltage comparator is also connected with a power module.
Illustrate that DP plug detection unit detects whether the principle of insertion equipment so that DP plugs detection unit as an example: working as threshold value When voltage generating unit is connected to the positive terminal of voltage comparator, the enable end of logic control element controls opening for the power module It opens, opens a current source and be poured on D+, or become in another form, do not use current source, and can also be with pull-up resistor;Again The either power supply of a minimum output loading capability is connected on D+, when on D+ without load access, D+ voltage close to Supply voltage VCC, VCC are usually 3.3v, and when accessing the equipment such as iPhone, the D+ of interior of mobile phone has a drop-down electricity Resistance, the resistance can consume the electric current of about 2-3uA, and the voltage on D+ can be caused to drop to threshold voltage and generate the threshold that unit generates Threshold voltage is hereinafter, the present embodiment provides the threshold voltage of 2v, and when dropping to 2V or less, (voltage is also not a fixed value, can With adjustment), voltage comparator will detect, to issue D+_PLUGIN signal as height.
First signal debounce, on along detection unit in EN_D+DET=1, which just starts to work, to input D+_PLUGIN signal carry out debounce and it is upper along detection, when detecting effective rising edge of D+_PLUGIN signal, it is believed that D+ On detect load insertion, export D+_PLUGIN_D=1.
When D+_PLUGIN signal is high, so that it may which judgement has mobile phone insertion, to wake up USB port out-put supply, in turn To equipment charges such as mobile phones.
As EN_D+DET=0, which does not work, and exports D+_PLUGIN_D=0.
When according to opposite connection, the voltage setting value of two input terminals of corresponding adjustment voltage comparator guarantees in D+ On when having equipment insertion, issuing D+_PLUGIN signal is height
The first signal debounce, on along detection unit effect be eliminate plug detection signal shake;It is negative when having on D+ Shi Guanji is carried, effective detection signal will not be issued, be inserted into after the load on D+ is extracted, can just issue effective detection Signal.
Similarly, second signal debounce, on along detection unit in EN_D-DET=1, which just starts to work, to input D-_PLUGIN signal carry out debounce and it is upper along detection, when detecting effective rising edge of D-_PLUGIN signal, it is believed that D- On detect load insertion, export D-_PLUGIN_D=1.
As EN_D-DET=0, which does not work, and exports D-_PLUGIN_D=0.
The effect of the unit is to eliminate the shake of plug detection signal, and the shutdown when there is load on D- will not issue effectively Detection signal, be inserted into after the load on D- is extracted, can just issue effective detection signal.
Third signal debounce, on along detection unit in EN_VBUSDET=1, which just starts to work, to defeated The VBUS_PLUGIN signal entered carries out debounce and upper edge detection, when detecting effective rising edge of VBUS_PLUGIN signal, Think to detect load insertion on VBUS, exports VBUS_PLUGIN_D=1.
As EN_VBUSDET=0, which does not work, and exports VBUS_PLUGIN_D=0.
The effect of the element circuit is to eliminate the shake of plug detection signal;The shutdown when there is load on VBUS, Bu Huifa Signal is effectively detected out, is inserted into after the load on VBUS is extracted, and effective detection signal can be just issued.
The embodiment of the present invention VBUS plugs detection unit, VBUS power supply unit, the DP and plugs detection unit, the DM Plug detection unit, the logic control element are integrated in one piece of IC chip.
A method of for detecting whether apple equipment is inserted into, the method is for detecting apple equipment based on above-mentioned The system of no insertion, comprising:
Step 1, after VBUS power supply unit, which is closed, powers, the signal OFF for sending instruction VBUS power supply shutdown gives logic control Unit processed;
Step 2, it after logic control element receives signal OFF, enables and controls to open VBUS plug detection unit, DP plug Detection unit and DM plug detection unit, and enable to open simultaneously corresponding signal debounce, on along detection unit, when VBUS is plugged After detection unit, DP plug detection unit, DM plug detection unit all enable, monitor whether that insertion signal provides;
Step 3, it is monitored when VBUS plugs detection unit, DP plug detection unit, DM plug detection unit any cell When having insertion signal, corresponding signal debounce, on along detection unit export high level to logic control element, wake up VBUS and power Unit power supply.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (5)

1. a kind of system whether being inserted into for detecting apple equipment, it is characterised in that: plugged including logic control element, VBUS Detection unit, VBUS power supply unit, DP plug detection unit, DM plug detection unit, the first signal debounce, upper edge detection are single Member, second signal debounce, on along detection unit and third signal debounce, on along detection unit;
The DP plugs detection unit, for detecting whether have charging equipment insertion on D+ line, the DP plug detection unit Signal input part is connect with D+ line, the signal output end of the DP plug detection unit and the first signal debounce, upper edge detection list The input terminal connection of member;
The DM plugs detection unit, for detecting whether have charging equipment insertion on D- line, the DM plug detection unit Signal input part is connect with D- line, and the signal output end and second signal debounce of the DM plug detection unit, upper edge detection are single The input terminal connection of member;
The signal input part of the VBUS plug detection unit is connect with VBUS line, and the signal of the VBUS plug detection unit is defeated Outlet and third signal debounce, on connect along the input terminal of detection unit;
Three signal debounces, on connect respectively with logic control element along the output end of detection unit, the logic control element Be respectively used to receive three signal debounces, on along detection unit feedback signal;
The logic control element is also connect with VBUS power supply unit, for after VBUS power supply unit is closed and powered, transmission to refer to Show the signal of VBUS power supply shutdown to logic control element;
The logic control element also plugs detection unit with the DP respectively and DM plug detection unit detection connects, and is used for After the signal for receiving the shutdown of VBUS power supply unit, VBUS plug detection unit, DP plug detection unit, DM plug inspection are opened in control Unit detection is surveyed, whether monitoring VBUS plug detection unit, DP plug detection unit and DM plug three units of detection unit have Insertion signal provides, and when having signal insertion, three units export high level respectively, and when three signal debounces, upper edge detection are single In member three signals have any one output be high level when, open VBUS power supply unit power supply.
2. as described in claim 1 for detecting the system whether apple equipment is inserted into, it is characterised in that: the DP plug inspection It is identical with the circuit structure of DM plug detection unit to survey unit, includes a voltage comparator, the output of the voltage comparator End is the output end of respective corresponding unit, and the positive terminal or negative phase end of the voltage comparator are connected with threshold voltage and generate unit Output end, the threshold voltage generates unit, and to be that the positive terminal or negative phase end of the voltage comparator provide reference threshold electric Pressure, corresponding, the negative phase end or positive terminal of the voltage comparator are connected respectively the D+ line or D- line of USB line, the electricity Press comparator output end and corresponding signal debounce, on along detection unit the connection of input end unit, the voltage comparator Negative phase end or positive terminal be also connected with a power module, the power module is controlled by logic control element and is opened, the electricity Comparator is pressed to be used for when detecting the Voltage unbalance of its positive terminal and negative phase end, output detects the height electricity of equipment insertion Ordinary mail number.
3. as claimed in claim 1 or 2 for detecting the system whether apple equipment is inserted into, it is characterised in that: the VBUS It plugs detection unit, VBUS power supply unit, DP plug detection unit, the DM and plugs detection unit, the logic control Unit is integrated in one piece of IC chip.
4. as claimed in claim 2 for detecting the method whether apple equipment is inserted into, it is characterised in that: the threshold voltage It generates unit and provides the reference voltage of 2V for the voltage comparator.
5. a kind of method whether being inserted into for detecting apple equipment, which is characterized in that the method is appointed based on claim 1-4 System described in one, comprising:
Step 1, after VBUS power supply unit, which is closed, powers, the signal OFF for sending instruction VBUS power supply shutdown gives logic control list Member;
Step 2, it after logic control element receives signal OFF, enables and controls to open VBUS plug detection unit, DP plug detection Unit and DM plug detection unit, and enable to open simultaneously corresponding signal debounce, on along detection unit, detected when VBUS is plugged After unit, DP plug detection unit, DM plug detection unit all enable, monitor whether that insertion signal provides;
Step 3, when VBUS plug detection unit, DP plug detection unit, DM plug detection unit any cell monitored it is slotting When entering signal, corresponding signal debounce, on along detection unit export high level to logic control element, wake up VBUS power supply unit Power supply.
CN201910673001.5A 2019-07-24 2019-07-24 A kind of system and method whether being inserted into for detecting apple equipment Pending CN110417085A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910673001.5A CN110417085A (en) 2019-07-24 2019-07-24 A kind of system and method whether being inserted into for detecting apple equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910673001.5A CN110417085A (en) 2019-07-24 2019-07-24 A kind of system and method whether being inserted into for detecting apple equipment

Publications (1)

Publication Number Publication Date
CN110417085A true CN110417085A (en) 2019-11-05

Family

ID=68362938

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910673001.5A Pending CN110417085A (en) 2019-07-24 2019-07-24 A kind of system and method whether being inserted into for detecting apple equipment

Country Status (1)

Country Link
CN (1) CN110417085A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111817409A (en) * 2020-09-11 2020-10-23 深圳英集芯科技有限公司 Fast charging protection circuit and method, fast charging chip and fast charging power supply equipment
CN112088476A (en) * 2018-04-17 2020-12-15 德州仪器公司 USB TYPE-C/PD controller with integrated VBUS to CC short-circuit protection
CN112380080A (en) * 2020-12-02 2021-02-19 深圳慧能泰半导体科技有限公司 USB equipment detection system and method
CN114624632A (en) * 2022-05-17 2022-06-14 陕西天视致远航空技术有限公司 USB port plug detection system, method, electronic equipment and storage medium
CN115237235A (en) * 2022-09-22 2022-10-25 珠海智融科技股份有限公司 USB equipment shift-out identification circuit and method and power supply system
CN115589051A (en) * 2022-11-18 2023-01-10 荣耀终端有限公司 Charging method and terminal equipment

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101141123A (en) * 2007-10-11 2008-03-12 电子科技大学 Burr testing apparatus
CN101694889A (en) * 2009-10-20 2010-04-14 中兴通讯股份有限公司 Intelligent charging method and device
WO2012077270A1 (en) * 2010-12-07 2012-06-14 パナソニック株式会社 Electronic device
US20120242282A1 (en) * 2011-03-24 2012-09-27 Atsushi Wada Input-output circuit
US20120256596A1 (en) * 2011-03-24 2012-10-11 Atsushi Wada Input-output circuit
CN102880238A (en) * 2012-08-30 2013-01-16 中兴通讯股份有限公司 Interface expanding method and device for tablet personal computer
CN105186598A (en) * 2015-08-04 2015-12-23 深圳英集芯科技有限公司 USB insertion automatic identification and power supply system and chip integrated with the same
CN207281751U (en) * 2017-09-25 2018-04-27 珠海智融科技有限公司 A kind of access detection device of USB device
CN108919696A (en) * 2018-05-29 2018-11-30 郑州云海信息技术有限公司 A kind of method of achievable UID-LED multiposition control
CN109039307A (en) * 2018-08-30 2018-12-18 无锡华润矽科微电子有限公司 It is double along Anti-shaking circuit structure

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101141123A (en) * 2007-10-11 2008-03-12 电子科技大学 Burr testing apparatus
CN101694889A (en) * 2009-10-20 2010-04-14 中兴通讯股份有限公司 Intelligent charging method and device
WO2012077270A1 (en) * 2010-12-07 2012-06-14 パナソニック株式会社 Electronic device
US20120242282A1 (en) * 2011-03-24 2012-09-27 Atsushi Wada Input-output circuit
US20120256596A1 (en) * 2011-03-24 2012-10-11 Atsushi Wada Input-output circuit
JP2012205366A (en) * 2011-03-24 2012-10-22 Semiconductor Components Industries Llc Input/output circuit
CN102880238A (en) * 2012-08-30 2013-01-16 中兴通讯股份有限公司 Interface expanding method and device for tablet personal computer
WO2013178146A1 (en) * 2012-08-30 2013-12-05 中兴通讯股份有限公司 Tablet interface extension method and device
CN105186598A (en) * 2015-08-04 2015-12-23 深圳英集芯科技有限公司 USB insertion automatic identification and power supply system and chip integrated with the same
CN207281751U (en) * 2017-09-25 2018-04-27 珠海智融科技有限公司 A kind of access detection device of USB device
CN108919696A (en) * 2018-05-29 2018-11-30 郑州云海信息技术有限公司 A kind of method of achievable UID-LED multiposition control
CN109039307A (en) * 2018-08-30 2018-12-18 无锡华润矽科微电子有限公司 It is double along Anti-shaking circuit structure

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112088476A (en) * 2018-04-17 2020-12-15 德州仪器公司 USB TYPE-C/PD controller with integrated VBUS to CC short-circuit protection
US11848552B2 (en) 2018-04-17 2023-12-19 Texas Instruments Incorporated USB type-C/PD controller having integrated VBUS to CC short protection
CN112088476B (en) * 2018-04-17 2024-04-05 德州仪器公司 USB TYPE-C/PD controller with integrated VBUS to CC short circuit protection
CN111817409A (en) * 2020-09-11 2020-10-23 深圳英集芯科技有限公司 Fast charging protection circuit and method, fast charging chip and fast charging power supply equipment
CN112380080A (en) * 2020-12-02 2021-02-19 深圳慧能泰半导体科技有限公司 USB equipment detection system and method
CN112380080B (en) * 2020-12-02 2021-06-08 深圳慧能泰半导体科技有限公司 USB equipment detection system and method
WO2022116370A1 (en) * 2020-12-02 2022-06-09 深圳慧能泰半导体科技有限公司 Usb device detection system and method
CN114624632A (en) * 2022-05-17 2022-06-14 陕西天视致远航空技术有限公司 USB port plug detection system, method, electronic equipment and storage medium
CN114624632B (en) * 2022-05-17 2022-09-30 陕西天视致远航空技术有限公司 USB port plug detection system, method, electronic equipment and storage medium
CN115237235A (en) * 2022-09-22 2022-10-25 珠海智融科技股份有限公司 USB equipment shift-out identification circuit and method and power supply system
CN115589051A (en) * 2022-11-18 2023-01-10 荣耀终端有限公司 Charging method and terminal equipment
CN115589051B (en) * 2022-11-18 2023-04-18 荣耀终端有限公司 Charging method and terminal equipment

Similar Documents

Publication Publication Date Title
CN110417085A (en) A kind of system and method whether being inserted into for detecting apple equipment
CN101102119B (en) A charging detection circuit of appliance device and charging detection method
CN103618356B (en) The charging system of a kind of mobile terminal and charging method thereof
CN103219770B (en) Mobile terminal with multi-port charging control function
CN202872406U (en) Interface multiplexing circuit and mobile terminal
CN201813422U (en) Charging chip and mobile terminal capable of automatically adjusting charging mode
EP2480043A1 (en) Method and device for identifying universal serial bus (usb) insertion or charger insertion of mobile terminal
CN104272216A (en) Electronic device and control method therefor
CN108988431B (en) Multi-protocol charging device and multi-protocol charging method
US9385551B2 (en) Automatic mobile device detector
US9018896B2 (en) Method and system for determining whether a portable device is charging
CN104067200B (en) The communication of battery and monitoring via single line
CN110176792A (en) More mouthfuls of fast charging type portable power source circuits of one kind and its control method
CN106469815B (en) Battery module and battery safety method
CN106849270A (en) Terminal and charging method
CN105449731A (en) Portable power source device and charge-discharge processing method
CN105071484B (en) A kind of charging method and device of the terminal with data exchanging function
CN201075704Y (en) Detection circuit of electrical equipment and mobile phone having the circuit
CN108539830A (en) A kind of charging control switching circuit and control method
CN203759164U (en) Circuit for detecting access state of USB load equipment
CN106921192A (en) Terminal and electricity sharing method
CN106797414A (en) The leakage current detection circuit and terminal of a kind of terminal
CN205666633U (en) Mobile terminal
CN106164686A (en) A kind of leakage current test system of terminal
CN106356946A (en) Charging method and device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination