CN109995107A - A kind of detection device - Google Patents
A kind of detection device Download PDFInfo
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- CN109995107A CN109995107A CN201910248980.XA CN201910248980A CN109995107A CN 109995107 A CN109995107 A CN 109995107A CN 201910248980 A CN201910248980 A CN 201910248980A CN 109995107 A CN109995107 A CN 109995107A
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- access interface
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- 238000001514 detection method Methods 0.000 title claims abstract description 97
- 230000005611 electricity Effects 0.000 claims abstract description 99
- 238000003860 storage Methods 0.000 claims description 48
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- 238000000034 method Methods 0.000 description 19
- 238000010586 diagram Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 10
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- 238000004590 computer program Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000000737 periodic effect Effects 0.000 description 4
- 230000005291 magnetic effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- KLDZYURQCUYZBL-UHFFFAOYSA-N 2-[3-[(2-hydroxyphenyl)methylideneamino]propyliminomethyl]phenol Chemical compound OC1=CC=CC=C1C=NCCCN=CC1=CC=CC=C1O KLDZYURQCUYZBL-UHFFFAOYSA-N 0.000 description 1
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
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- 238000005859 coupling reaction Methods 0.000 description 1
- 201000001098 delayed sleep phase syndrome Diseases 0.000 description 1
- 208000033921 delayed sleep phase type circadian rhythm sleep disease Diseases 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
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- H02J7/0077—
Abstract
The embodiment of the present application discloses a kind of detection device, which includes power supply module and access detection module, and power supply module is connected to access interface by passway for transmitting electricity；It accesses detection module and the access interface is connected to by the passway for transmitting electricity；The access detection module is used to determine whether the access interface has accessed load based on the passway for transmitting electricity.
Description
Technical field
This application involves electron and information technology fields, more particularly, to a kind of detection device.
Background technique
When the loads such as electronic equipment need to charge, it will usually connect load with the power supply module of detection device, detect
Device needs to judge the access interface whether load has accessed to detection device, if determining load accesses to access interface,
Control power supply module powering load.In the related technology, whether to need to judge by the sense channel of detection device load
It is complicated so as to cause the circuit inside detection device through accessing to the access interface of detection device.
Summary of the invention
The technical solution of the application is achieved in that
A kind of detection device, comprising:
Power supply module is connected to access interface by passway for transmitting electricity；
Detection module is accessed, the access interface is connected to by the passway for transmitting electricity；
The access detection module, for determining whether the access interface has accessed load based on the passway for transmitting electricity.
Optionally, the access detection module includes:
First pole of electricity storage module, the electricity storage module is connected to the access interface by the passway for transmitting electricity, described
Second pole of electricity storage module is grounded；
Submodule is handled, the processing submodule is connected to the access interface by the passway for transmitting electricity；
The processing submodule, the running parameter of the first pole for obtaining the electricity storage module, if the running parameter
Variation is generated, determines that the access interface access has load.
Optionally, the processing submodule, is also used to obtain parameter preset, if the running parameter is less than the default ginseng
Number determines that the access interface access has load.
Optionally, described device further include:
Switch module, the first end of the switch module are connected to the power supply module, the second end of the switch module
It is connected to the access interface, the third end of the switch module is connected to the processing submodule；The switch module period
The closing or opening of property ground；
The processing submodule, for making the switch module periodically closing or opening.
Optionally, the third end of the switch module is connected to the processing submodule by modulation module；Wherein, described
Modulation module is for making the switch module periodically closing or opening；
The processing submodule is also used to control the modulation module work.
Optionally, the power supply module, for having load in access interface access, and the switch module is closed
When, it charges to the electricity storage module and the load；
The electricity storage module, for being charged to the load when the switch module disconnects.
Optionally, the running parameter includes target voltage, and the parameter preset includes reference voltage；The processing submodule
Block includes:
The first input end of comparison module, the comparison module is connected to the access interface by the passway for transmitting electricity,
Second input terminal of the comparison module is circumscribed with reference voltage, and the output end of the comparison module is connected to the first of processor
End；
The comparison module is based on the base for obtaining the target voltage of the reference voltage and the electricity storage module
Quasi- voltage and the target voltage generate predetermined level signal, and send the predetermined level signal to the processor；
The processor, the second end of the processor connect the third end of the switch module；
The processor connects described in determination if the predetermined level signal sent for receiving the comparison module
Inbound port access has load.
Optionally, the comparison module generates described preset less than the reference voltage if being also used to the target voltage
Level signal, and the predetermined level signal is sent to the processor.
Optionally, the processing submodule, if being also used to determine within a preset time, the running parameter does not generate variation,
Determine that the access interface does not access load.
Optionally, the first pole of the power supply module is connected to the first of the access interface by the passway for transmitting electricity
Pole, the second pole of the power supply module and the second pole ground connection of the access interface；
The access detection module is connected to the first pole of the access interface by the passway for transmitting electricity.
Detection device provided by the embodiment of the present application includes power supply module and access detection module, and power supply module passes through defeated
Electric channel is connected to access interface, and access detection module is connected to access interface by passway for transmitting electricity, and access detection module is used for
Determine whether access interface has accessed load based on passway for transmitting electricity, since the access detection module of detection device can pass through transmission of electricity
Channel determines whether access interface has accessed load, so that the circuit inside detection device is simple, avoids such as related skill
Art needs to need to increase inside detection device like that additional sense channel, and need to be by sense channel detection access interface
The no loaded situation of access, causes the circuit inside detection device complicated.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of detection device provided by the embodiments of the present application；
Fig. 2 is the structural schematic diagram of another detection device provided by the embodiments of the present application；
Fig. 3 shows for what the target voltage when not accessing load and access has load of the embodiment of the present application access interface changed
It is intended to；
Fig. 4 is the structural schematic diagram of another detection device provided by the embodiments of the present application；
Fig. 5 is a kind of structural schematic diagram for detection device that another embodiment of the application provides.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description.
It should be understood that " the embodiment of the present application " or " previous embodiment " that specification is mentioned in the whole text means have with embodiment
The a particular feature, structure, or characteristic of pass includes at least one embodiment of the application.Therefore, go out everywhere in the whole instruction
Existing " in the embodiment of the present application " or " in the aforementioned embodiment " not necessarily refers to identical embodiment.In addition, these are specific
Feature, structure or characteristic can be combined in any suitable manner and be answered in one or more embodiments.In the various realities of the application
It applies in example, magnitude of the sequence numbers of the above procedures are not meant that the order of the execution order, the execution sequence Ying Yiqi of each process
Function and internal logic determine that the implementation process without coping with the embodiment of the present application constitutes any restriction.Above-mentioned the application is implemented
Example serial number is for illustration only, does not represent the advantages or disadvantages of the embodiments.
It should be noted that the application is two module connections appeared in embodiment, it can be and lead between two modules
It crosses conductor to be directly connected to, is also possible to be attached between two modules by other modules, other modules include but is not limited to
At least one of filter module, Voltage stabilizing module, voltage changing module and power amplifier module, or can be between two modules
The mode of energy coupling couples, to realize the energy exchange between two modules.
The embodiment of the present application provides a kind of detection device, as shown in Figure 1, detection device 1 includes power supply module 11, mould of powering
Block 11 is connected to access interface 12 by passway for transmitting electricity；Detection device 1 further includes access detection module 13, accesses detection module 13
Access interface 12 is connected to by passway for transmitting electricity；Access detection module 13 is used to whether determine access interface 12 based on passway for transmitting electricity
Access has load 2.Passway for transmitting electricity is to the channel for 2 input charge of load for accessing to detection device 1.In the embodiment of the present application
In, passway for transmitting electricity can be the channel being connected directly between power supply module 11 and access interface 12.
Detection device 1 is that the device of load 2 whether is accessed for detecting access interface 12.In one embodiment,
Detection device 1 can be a kind of power supply unit, and power supply unit includes battery, and battery can be rechargeable battery and not chargeable electricity
Pond, battery detect that access interface 12 is linked into load 2 as the power supply module 11 in the embodiment of the present application, in detection device 1
Afterwards, battery gives load 2 power supply by passway for transmitting electricity.In another embodiment, detection device 1 can be power supply adaptor,
Power supply adaptor includes plant-grid connection module, and as the power supply module 11 in the embodiment of the present application, power supply connects plant-grid connection module
Enter module for external power supply, after detection device 1 detects that access interface 12 is linked into load 2, external power supply passes through transmission of electricity
Channel gives load 2 power supply.
Load 2 in the embodiment of the present application is the element of any consumption power, for example, load 2 can for capacitor, resistance or
The electronic components such as inductance can also be mobile phone, tablet computer, laptop, palm PC, personal digital assistant, portable
Media player, navigation device, wearable device, Intelligent bracelet, pedometer, the number electronics such as TV or desktop computer are set
Standby, the embodiment of the present application is not construed as limiting the concrete type of load 2.
Access interface 12 should include two pins, and two pins have one to load 2 positive pins for connecting, and are used for
The pin of connection 2 cathode of load.In other embodiments, access interface 12 can also include at least three pins, for example, 4,
8,20 etc., to realize other functions.Access interface 12 can be any port for being used to connect load 2, for example, access
Port 12 can be universal serial bus (Universal Serial Bus, USB) interface, Type-C interface, lightning interface, electricity
Brain display interface or adaptor interface etc..It should be understood that in the related art, access interface 12 must include three or three
Above pin, wherein two pins are used to connect the anode and cathode of load 2, at least one pin is connected by sense channel
The detection module that load 2 whether is connected for detecting access interface 12 connect.And in the embodiment of the present application, due to accessing detection module
13 can connect two pins by passway for transmitting electricity, and detect whether access interface 12 accesses load 2 by passway for transmitting electricity, thus
Access interface 12 is allowed only to include two for connecting the anode of load 2 and the pin of cathode, in this mode, if access
When port 12 includes greater than two pins, drawn by other in addition to the pin of access passway for transmitting electricity in the pin greater than two
Foot is, it can be achieved that other functions, in this way, the utilization rate of 12 pin of access interface can be improved, consequently facilitating access interface 12 is small-sized
Change design.
First pole of power supply module 11 is connected to the first pole of access interface 12 by passway for transmitting electricity, and the of power supply module 11
Two poles and the second pole of access interface 12 ground connection；It accesses detection module 13 and is connected to the first of access interface 12 by passway for transmitting electricity
Pole.When battery is as power supply module 11, the anode of the extremely battery of the first of power supply module 11, the second of power supply module 11 is extremely
The cathode of battery.When plant-grid connection module is as power supply module 11, the first pole connection external power supply of power supply module 11 is just
Pole, the cathode of the second pole connection external power supply of power supply module 11 or ground connection.
When the access of the input port of detection device 1 has load 2, the anode of the first pole connection load 2 of power supply module 11,
Second pole of power supply module 11 and the second pole ground connection of load 2.
Detection device provided by the embodiment of the present application includes power supply module and access detection module, and power supply module passes through defeated
Electric channel is connected to access interface, and access detection module is connected to access interface by passway for transmitting electricity, and access detection module is used for
Determine whether access interface has accessed load based on passway for transmitting electricity, since the access detection module of detection device can pass through transmission of electricity
Channel determines whether access interface has accessed load, so that the circuit inside detection device is simple, avoids such as related skill
Art needs to need to increase inside detection device like that additional sense channel, and need to be by sense channel detection access interface
The no loaded situation of access, causes the circuit inside detection device complicated.
Based on previous embodiment, the embodiment of the present application provides a kind of detection device, as shown in Fig. 2, detection device 1 includes supplying
Electric module 11 and access detection module 13.
Wherein, access detection module 13 includes electricity storage module 131 and processing submodule 132.First pole of electricity storage module 131
Access interface 12, the second pole ground connection of electricity storage module 131 are connected to by passway for transmitting electricity.It is logical by transmission of electricity to handle submodule 132
Road is connected to access interface 12.Processing submodule 132 is used to obtain the running parameter of the first pole of electricity storage module 131, if work
Parameter generates variation, determines that the access of access interface 12 has load 2.
Electricity storage module 131 in the embodiment of the present application is capacitor.In other embodiments, electricity storage module 131 can be with
It is other for storing the element of charge for inductance or rechargeable battery etc..The first of electricity storage module 131 extremely can be electricity storage module 131
Anode, the second of electricity storage module 131 extremely can be electricity storage module 131 cathode.
Running parameter may include at least one of electric current, target voltage, power, temperature and impedance.In the application
It in embodiment, illustrates by target voltage of running parameter, to detect whether access interface 12 accesses load to detection device 1
2 process is illustrated, it should be appreciated that when running parameter is electric current, power, temperature or impedance, determines whether detection interface connects
Similar when entering process and the running parameter of load 2 for target voltage, the embodiment of the present application does not repeat this.
Running parameter generates variation, can be running parameter and periodically changes, is also possible to running parameter aperiodicity
Variation.Running parameter, which can be, to be also possible to gradually generate variation, is also possible to the variation of jumping characteristic, is not construed as limiting herein,
As long as running parameter generates variation, and the variation of running parameter meets preset condition, that is, it is negative to can determine that the access of access interface 12 has
Carry 2.The variation of running parameter meets preset condition, can within a preset time, and the change value of running parameter is greater than preset value.
Processing submodule 132 is also used to obtain parameter preset, if running parameter is less than parameter preset, determines access interface 12
Access has load 2.Running parameter includes target voltage, and parameter preset includes reference voltage.For example, when parameter preset is target electricity
When pressure, processing submodule 132 determines that the access of access interface 12 has load 2 when getting target voltage less than reference voltage.?
In a kind of embodiment, as long as determining incoming end when handling submodule 132 when getting target voltage less than reference voltage
12 access of mouth has load 2.In another embodiment, when processing submodule 132 is getting target voltage less than benchmark electricity
When the number of pressure is greater than preset times, just determines that the access of access interface 12 has load 2, in this fashion, avoid when access
When port 12 touches impurity, the voltage of the first pole of electricity storage module 131 is caused to change, thus the case where generating erroneous judgement.
Preset times can select according to the actual situation, for example, twice, three times or four is inferior.
Detection device 1 further includes switch module 14, and the first end of switch module 14 is connected to power supply module 11, switch module
14 second end is connected to access interface 12, and the third end of switch module 14 is connected to processing submodule 132；Switch module 14 weeks
The closing or opening of phase property ground；Processing submodule 132 is for making the periodically closing or opening of switch module 14.Switch module 14 can
Think PMOS switch or NMOS switch.
In one embodiment, the third end of switch module 14 is connected to processing submodule 132 by modulation module 15；
Wherein, modulation module 15 is for making the periodically closing or opening of switch module 14；Submodule 132 is handled, is also used to control tune
Molding block 15 works.Modulation module 15 exports predeterminated voltage to switch module 14 for exporting periodic predeterminated voltage
Third end so that switch module 14 receive processing submodule 132 export predeterminated voltage when closure, do not receiving everywhere
It is disconnected when the predeterminated voltage that reason submodule 132 exports.
In another embodiment, the third end of switch module 14 can be directly connected to the first end of modulation module 15, adjust
The second end of molding block 15 can connect to power supply module 11, so that power supply module 11 can directly power to modulation module 15, make
Modulation module 15 exports periodic predeterminated voltage to the third end of switch module 14.In this case, closing due to switch
The period closed or disconnected is not processed the control of submodule 132, it is thereby possible to reduce the consumption of processing submodule 132.
In yet another embodiment, processing submodule 132 can be connected directly between the third end of switch module 14 without
By modulation module 15, under this mode, the third of processing submodule 132 periodically output predeterminated voltage to switch module 14
End, so that the closure when receiving the predeterminated voltage that processing submodule 132 exports of switch module 14, is not receiving processing submodule
It is disconnected when the predeterminated voltage that block 132 exports.
The period of 14 closing or opening of switch module can be unalterable.Alternatively, 14 closing or opening of switch module
Period can also be changed according to the actual situation, for example, processing submodule 132 can determine at detection device 1
When motion state, it can determine that the access of access interface 12 at this time has the probability of load 2 smaller, can control switch module at this time
14 with period 1 closing or opening；When determining that detection volume device remains static, switch module 14 can control at this time
With second round closing or opening.Wherein, the period 1 is less than second round.Alternatively, processing submodule 132 can work as in determination
When the preceding time belongs to first time range, control switch module 14 is determining current time category with period 1 closing or opening
When the second time range, control switch module 14 is with second round closing or opening.First time range be, for example, one day it
In zero point to ten two points, the second time range is, for example, ten two points to 24 points among one day.Certainly, first time model
Enclosing can voluntarily select with the second time range according to the actual situation, be not construed as limiting herein.
Power supply module 11 is used to have load 2 in the access of access interface 12, and when the closure of switch module 14, gives electricity storage module
131 charge with load 2；Electricity storage module 131 is used for when switch module 14 disconnects, and gives load 2 charging.
The situation as shown in figure 3, voltage that waveform M is the third end of switch module 14 changes with time, in switch module
When the voltage at 14 third end is U1, switch module 14 is in closed state, and the voltage at the third end of switch module 14 is U2
When, switch module 14 is in an off state；Waveform N is load whether to be accessed based on access interface 12 and switch module 14 closes
When closing or disconnecting, the target voltage of the first pole of electricity storage module 131 changes with time situation.From figure 3, it can be seen that no matter
Whether access interface 12 has accessed load, and switch module 14 is always with predetermined period T closing or opening.
In t0 to t1 period, access interface 12 does not access load 2, as can be seen that switch module 14 is with default from waveform M
Cycle T carries out closing or opening, as can be seen that the voltage of the first pole of electricity storage module 131 is to remain unchanged from waveform N.Storage
The voltage of first pole of electric module 131 can be related with the voltage that power supply module 11 is capable of providing.For example, in the embodiment of the present application
In, as the voltage U3 that power supply module 11 provides, the voltage of 131 first pole of electricity storage module is also U3.In other embodiments, it stores up
The voltage that the voltage of electric 131 first pole of module might be less that or provide greater than power supply module 11.It should be noted that Fig. 3 is intended merely to
Illustrate the variation of target voltage and the relationship of 14 open and close of switch module, does not limit the size of U1, U2 and U3.One
In the feasible embodiment of kind, the voltage value of U3 can be identical as above-mentioned predeterminated voltage.
In t1 to t2 period, the access of access interface 12 has load 2, from waveform M as can be seen that switch module 14 still with
Predetermined period T carries out closing or opening.From waveform N as can be seen that when switching disconnection, due to electricity storage module 131 and load 2
Between also have electrical connection, therefore electricity storage module 131 to load 2 power supply, so that the voltage of the first pole of electricity storage module 131 is gradually
It reduces；When closing the switch, electrically connected due to existing between the first pole of power supply module 11 and the first pole of electricity storage module 131,
There is also electrically connecting between first pole of power supply module 11 and the anode for loading 2, power supply module 11 is not only supplied to electricity storage module 131
Electricity returns 2 power supply of load, so that the voltage of the first pole of electricity storage module 131 gradually increases.Therefore, in t1 to t2 period, due to
Load 2 accesses to access interface 12, and the periodic closing or opening of switch module 14, so that electricity storage module 131 be made to be in week
The process being charged and discharged to phase property leads to changing for the voltage cycle of the first pole of electricity storage module 131.
In addition, processing submodule 132, if being also used to determine within a preset time, running parameter does not generate variation, and determination connects
Inbound port 12 does not access load 2.Please continue to refer to Fig. 3, in t2 to t3 period, access interface 12 does not access load 2, from waveform M
In as can be seen that switch module 14 still carries out closing or opening with predetermined period T, since load 2 does not access to access interface
12, cause electricity storage module 131 that can not give load 2 power supply, so that the target voltage of the first pole of electricity storage module 131 is constant, i.e., from
As can be seen that target voltage is maintained on U3 in waveform N.
It should be noted that being referred to other implementations with the explanation of content identical in other embodiments in the present embodiment
Description in example, details are not described herein again.
Detection device provided by the embodiment of the present application includes power supply module and access detection module, and power supply module passes through defeated
Electric channel is connected to access interface, and access detection module is connected to access interface by passway for transmitting electricity, and access detection module is used for
Determine whether access interface has accessed load based on passway for transmitting electricity, since the access detection module of detection device can pass through transmission of electricity
Channel determines whether access interface has accessed load, so that the circuit inside detection device is simple, avoids such as related skill
Art needs to need to increase inside detection device like that additional sense channel, and need to be by sense channel detection access interface
The no loaded situation of access, causes the circuit inside detection device complicated.In addition, the first end due to switch module is connected to
Power supply module, the second end of switch module are connected to access interface, and the third end of switch module is connected to processing submodule, switch
Module periodically closing or opening, so that the running parameter of the first pole of electricity storage module, which generates, periodically generates variation, from
And it can determine whether access interface has accessed load by the running parameter of the first pole of detection electricity storage module.
Based on previous embodiment, the embodiment of the present application provides a kind of detection device, as shown in figure 4, detection device 1 includes supplying
Electric module 11, access detection module 13, electricity storage module 131, processing submodule 132, switch module 14 and modulation module 15.
Wherein, processing submodule 132 includes comparison module 1321 and processor 1322.
Processor 1322 is worked by control modulation module 15, and modulation module 15 is made to export periodic predeterminated voltage.?
In a kind of embodiment, processor 1322 can only control the work of modulation module 15, and modulation module 15 has set default
Period, processor 1322 make modulation module 15 export period not changed predeterminated voltage by the work of modulation module 15.?
In another embodiment, processor 1322 can also change the period that modulation module 15 exports predeterminated voltage, so that modulation mould
Block 15 exports period changed predeterminated voltage.Modulation module 15, which can be, modulates (Pulse Width for output pulse width
Modulation, PWM) signal modulation circuit.
The first input end of comparison module 1321 is connected to access interface 12 by passway for transmitting electricity, and the of comparison module 1321
Two input terminals are circumscribed with reference voltage, and the output end of comparison module 1321 is connected to the first end of processor 1322；Comparison module
1321 for obtaining the target voltage of reference voltage and electricity storage module 131, generates default electricity based on reference voltage and target voltage
Ordinary mail number, and predetermined level signal is sent to processor 1322.The third of the second end connection switch module 14 of processor 1322
End；If processor 1322 is used to receive the predetermined level signal of the transmission of comparison module 1321, determine that the access of access interface 12 has
Load 2.Reference voltage can be indicated with U4.
If comparison module 1321, which is also used to target voltage, generates predetermined level signal less than reference voltage, and sends default electricity
Ordinary mail number is to processor 1322.
Comparison module 1321 in the embodiment of the present application is comparator.Comparator is used for reference voltage and target voltage
Size is made comparisons.Predetermined level signal can be high level signal or low level signal.In one embodiment, when comparing
When module 1321 determines that target voltage is greater than reference voltage, high level signal can be exported to processor 1322, processor 1322
After receiving high level signal, determine that the access of access interface 12 has load 2 based on high level signal.Processor 1322 can be
After receiving a high level signal, the access of access interface 12 load 2 is determined, alternatively, processor 1322 can receive two
After a, three or four high level signals, determine that the access of access interface 12 has load 2.In another embodiment, when comparing
When module 1321 determines that target voltage is greater than reference voltage, low level signal can be exported to processor 1322, processor 1322
After receiving low level signal, determine that the access of access interface 12 has load 2 based on low level signal.
In the application embodiment, detection device 1 is also provided with memory (not shown), stores in memory
There is computer program, memory is electrically connected with processor 1322.In one embodiment, processor 1322 is for calling storage
First computer program of middle memory, if to realize the predetermined level signal for receiving the transmission of comparison module 1321, determination is connect
The access of inbound port 12 has the step of load 2.In another embodiment, processor 1322 is used to call memory in storage
Second computer program, if determining incoming end to realize the predetermined level signal for receiving 1321 periodicity sending of comparison module
12 access of mouth has the step of load 2.
In order to illustrate more clearly of the connection relationship between each module and electronic component, referring to Fig. 5, power supply module 11
The first pole access to the first end of MOS switch K, the second end connection of MOS switch is for access the positive access interface of load 2
12, the access interface 12 for accessing 2 cathode of load is grounded.The first pole of capacitor C is connected to by passway for transmitting electricity for accessing
The access interface 12 of 2 anode of load, the second pole ground connection of capacitor C.The first input end of comparator A is connected to by passway for transmitting electricity
For accessing the access interface 12 of 2 anode of load, the negative input of comparator A is circumscribed with reference voltage, wherein reference voltage
It can be what power supply module 11 was provided by transforming circuit, the output end of comparator A is connected to the first end of processor 1322.Place
The second end for managing device 1322 connects the third end of MOS switch K by modulation module 15.Wherein, reference voltage can be indicated with U4.
It should be noted that being referred to other implementations with the explanation of content identical in other embodiments in the present embodiment
Description in example, details are not described herein again.
Detection device provided by the embodiment of the present application includes power supply module and access detection module, and power supply module passes through defeated
Electric channel is connected to access interface, and access detection module is connected to access interface by passway for transmitting electricity, and access detection module is used for
Determine whether access interface has accessed load based on passway for transmitting electricity, since the access detection module of detection device can pass through transmission of electricity
Channel determines whether access interface has accessed load, so that the circuit inside detection device is simple, avoids such as related skill
Art needs to need to increase inside detection device like that additional sense channel, and need to be by sense channel detection access interface
The no loaded situation of access, causes the circuit inside detection device complicated.In addition, due to comparison module if it is determined that target electricity
Pressure is less than reference voltage and generates predetermined level signal, sends predetermined level signal to processor, makes processor according to predetermined level
Determine that access interface access has load, it is simple that detection device determines whether access interface accesses loaded method.
It should be noted that above-mentioned processor can be application-specific IC (ASIC, Application
Specific Integrated Circuit), digital signal processor (DSP, Digital Signal Processor), number
Word signal processing apparatus (DSPD, Digital Signal Processing Device), programmable logic device (PLD,
Programmable Logic Device), field programmable gate array (FPGA, Field Programmable Gate
Array), central processing unit (CPU, Central Processing Unit), controller, in microcontroller, microprocessor extremely
Few one kind.It is to be appreciated that realizing that the electronic device of above-mentioned processor function can also be to be other, the embodiment of the present application is not made to have
Body limits.
It should be noted that above-mentioned computer storage medium/memory can be read-only memory (Read Only
Memory, ROM), programmable read only memory (Programmable Read-Only Memory, PROM), erasable programmable
Read-only memory (Erasable Programmable Read-Only Memory, EPROM), electrically erasable is read-only deposits
Reservoir (Electrically Erasable Programmable Read-Only Memory, EEPROM), magnetic random access
Memory (Ferromagnetic Random Access Memory, FRAM), flash memory (Flash Memory), magnetic table
The memories such as face memory, CD or CD-ROM (Compact Disc Read-Only Memory, CD-ROM)；It can also be with
It is the various terminals for including one of above-mentioned memory or any combination, such as mobile phone, computer, tablet device, individual digital
Assistant etc..
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited from sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
Above-mentioned the embodiment of the present application serial number is for illustration only, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, the technical solution of the application substantially in other words does the prior art
The part contributed out can be embodied with the pattern of software product, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be mobile phone, computer, clothes
Business device, air conditioner or the network equipment etc.) execute method described in each embodiment of the application.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that can be from every one stream in computer program instructions implementation flow chart and/or block diagram
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The above is only preferred embodiment of the present application, are not intended to limit the scope of the patents of the application, all to utilize this Shen
Please equivalent structure or equivalent flow shift made by specification and accompanying drawing content, be applied directly or indirectly in other relevant skills
Art field similarly includes in the scope of patent protection of the application.
Claims (10)
1. a kind of detection device, comprising:
Power supply module is connected to access interface by passway for transmitting electricity；
Detection module is accessed, the access interface is connected to by the passway for transmitting electricity；
The access detection module, for determining whether the access interface has accessed load based on the passway for transmitting electricity.
2. the apparatus according to claim 1, the access detection module include:
First pole of electricity storage module, the electricity storage module is connected to the access interface, the storage by the passway for transmitting electricity
Second pole of module is grounded；
Submodule is handled, the processing submodule is connected to the access interface by the passway for transmitting electricity；
The processing submodule, the running parameter of the first pole for obtaining the electricity storage module, if the running parameter generates
Variation determines that the access interface access has load.
3. the apparatus of claim 2, wherein
The processing submodule, is also used to obtain parameter preset, if the running parameter be less than the parameter preset, determine described in
Access interface access has load.
4. device according to claim 3, described device further include:
Switch module, the first end of the switch module are connected to the power supply module, the second end connection of the switch module
In the access interface, the third end of the switch module is connected to the processing submodule；The switch module is periodically
Closing or opening；
The processing submodule, for making the switch module periodically closing or opening.
5. device according to claim 4, wherein
The third end of the switch module, the switch module is connected to the processing submodule by modulation module；Wherein, institute
Modulation module is stated for making the switch module periodically closing or opening；
The processing submodule is also used to control the modulation module work.
6. device according to claim 4, wherein
The power supply module for having load in access interface access, and when switch module closure, gives the storage
Module and load charging；
The electricity storage module, for being charged to the load when the switch module disconnects.
7. the running parameter includes target voltage, the parameter preset according to claim 4 to 6 described in any item devices
Including reference voltage；The processing submodule includes:
The first input end of comparison module, the comparison module is connected to the access interface by the passway for transmitting electricity, described
Second input terminal of comparison module is circumscribed with reference voltage, and the output end of the comparison module is connected to the first end of processor；
The comparison module, for obtaining the target voltage of the reference voltage and the electricity storage module, based on the benchmark electricity
Pressure and the target voltage generate predetermined level signal, and send the predetermined level signal to the processor；
The processor, the second end of the processor connect the third end of the switch module；
The processor, if the predetermined level signal sent for receiving the comparison module, determines the incoming end
Mouth access has load.
8. device according to claim 7, wherein
The comparison module generates the predetermined level signal less than the reference voltage if being also used to the target voltage, and
The predetermined level signal is sent to the processor.
9. the apparatus of claim 2, wherein
The processing submodule, if being also used to determine within a preset time, the running parameter does not generate variation, connects described in determination
Inbound port does not access load.
10. the apparatus according to claim 1, wherein
First pole of the power supply module, the power supply module is connected to the first of the access interface by the passway for transmitting electricity
Pole, the second pole of the power supply module and the second pole ground connection of the access interface；
The access detection module is connected to the first pole of the access interface by the passway for transmitting electricity.
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| CN201910248980.XA CN109995107B (en) | 2019-03-29 | 2019-03-29 | Detection device |
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| CN201910248980.XA CN109995107B (en) | 2019-03-29 | 2019-03-29 | Detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113541220A (en) * | 2020-04-21 | 2021-10-22 | 圣邦微电子（北京）股份有限公司 | Load detection circuit and charging system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101221546A (en) * | 2007-01-12 | 2008-07-16 | 奇岩电子股份有限公司 | Device for automatically detecting universal serial bus main unit or peripherals |
| CN102520750A (en) * | 2011-12-18 | 2012-06-27 | 西安恒飞电子科技有限公司 | Low-ripple linear power source |
| CN103311986A (en) * | 2013-06-03 | 2013-09-18 | Tcl通讯（宁波）有限公司 | Charger, mobile terminal, charger detection system and detection method thereof |
| CN203481855U (en) * | 2013-08-01 | 2014-03-12 | 湖南九天科技股份有限公司 | Portable power supply device |
| CN106300482A (en) * | 2015-06-05 | 2017-01-04 | 西安中兴新软件有限责任公司 | A kind of charger and control method thereof |
| US20180034293A1 (en) * | 2016-02-05 | 2018-02-01 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Charging system, charging method, and power adapter |
-
2019
- 2019-03-29 CN CN201910248980.XA patent/CN109995107B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101221546A (en) * | 2007-01-12 | 2008-07-16 | 奇岩电子股份有限公司 | Device for automatically detecting universal serial bus main unit or peripherals |
| CN102520750A (en) * | 2011-12-18 | 2012-06-27 | 西安恒飞电子科技有限公司 | Low-ripple linear power source |
| CN103311986A (en) * | 2013-06-03 | 2013-09-18 | Tcl通讯（宁波）有限公司 | Charger, mobile terminal, charger detection system and detection method thereof |
| CN203481855U (en) * | 2013-08-01 | 2014-03-12 | 湖南九天科技股份有限公司 | Portable power supply device |
| CN106300482A (en) * | 2015-06-05 | 2017-01-04 | 西安中兴新软件有限责任公司 | A kind of charger and control method thereof |
| US20180034293A1 (en) * | 2016-02-05 | 2018-02-01 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Charging system, charging method, and power adapter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113541220A (en) * | 2020-04-21 | 2021-10-22 | 圣邦微电子（北京）股份有限公司 | Load detection circuit and charging system |
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