CN108414870A - More battery detection circuit for access and electronic equipment - Google Patents

More battery detection circuit for access and electronic equipment Download PDF

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Publication number
CN108414870A
CN108414870A CN201710074178.4A CN201710074178A CN108414870A CN 108414870 A CN108414870 A CN 108414870A CN 201710074178 A CN201710074178 A CN 201710074178A CN 108414870 A CN108414870 A CN 108414870A
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China
Prior art keywords
resistance
battery
controller
resistor
access
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CN201710074178.4A
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Chinese (zh)
Inventor
王贤江
胡振营
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Edan Instruments Inc
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Edan Instruments Inc
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Priority to CN201710074178.4A priority Critical patent/CN108414870A/en
Publication of CN108414870A publication Critical patent/CN108414870A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0428—Safety, monitoring
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/26—Pc applications
    • G05B2219/2604—Test of external equipment

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Secondary Cells (AREA)

Abstract

A kind of more battery detection circuit for access of the application offer and electronic equipment, wherein the circuit, including：Resistor network, pull-up resistor, controller and power supply；Resistor network includes N number of resistance, and the resistance value of N number of resistance is different, and the resistance value in N number of resistance after arbitrary K resistor coupled in parallel is different from the resistance value after other M resistor coupled in parallel；One end of the pull-up resistor is connect with the power supply；The other end of the pull-up resistor is connect with one end of an input terminal of the controller and N number of resistance, and the other end of N number of resistance is respectively used to connect with the test side in place of N number of battery；Controller, the voltage value for being inputted according to input terminal, determines the access state of N number of battery.An input terminal merely with controller is realized to judge whether multiple batteries access circuit, to save controller input terminal resource, and circuit structure is simple, at low cost.

Description

More battery detection circuit for access and electronic equipment
Technical field
This application involves electronic technology field more particularly to a kind of more battery detection circuit for access and electronic equipment.
Background technology
Currently, common battery detection circuit for access works as electricity as shown in Figure 1, by the way that test side in place is arranged in the battery When circuit is accessed in pond, the ports the I/O connection of test side in place and controller, since test side in place is connected with battery cathode, Therefore when battery accesses circuit, test side in place can drag down the ports the I/O current potential of controller, when battery is extracted, control The ports I/O of device are hanging, are in high level state, to which controller can judge that battery is according to the level state of the ports I/O No access.
Above-mentioned battery detection circuit for access be used to judge when whether the battery of monocell or negligible amounts accesses circuit compared with It is convenient, but for multiple battery systems, it may be necessary to a large amount of ports I/O of controller are occupied, cause controller resource unrestrained Take.
Invention content
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, an object of the present invention is to provide a kind of more battery detection circuit for access, by using different resistance values Resistance and different batteries test side in place connect, according to the partial pressure value of resistor network, determine the access state of multiple batteries, An input terminal merely with controller is realized to judge whether multiple batteries access circuit, to save controller input Resource is held, and circuit structure is simple, at low cost.
Second object of the present invention is to propose a kind of electronic equipment.
In order to achieve the above objectives, a kind of more battery detection circuit for access that the embodiment of the present invention proposes, including：Resistance net Network, pull-up resistor, controller and power supply；
The resistor network includes N number of resistance, and the resistance value of N number of resistance is different, and arbitrary K in N number of resistance Resistance value after a resistor coupled in parallel is different from the resistance value after other M resistor coupled in parallel, wherein K is the positive integer more than or equal to 1, N It is the positive integer more than or equal to 2 with M, and K and M are respectively less than N；
One end of the pull-up resistor is connect with the power supply；
The other end of the pull-up resistor is connect with one end of an input terminal of the controller and N number of resistance, The other end of N number of resistance is respectively used to connect with the test side in place of N number of battery；
The controller, the voltage value for being inputted according to the input terminal, determines the access state of N number of battery.
More battery detection circuit for access provided by the embodiments of the present application, including：Resistor network, pull-up resistor, controller and Power supply；The resistor network includes N number of resistance, and the resistance value of N number of resistance is different, and arbitrary K electricity in N number of resistance Resistance value after resistance is in parallel is different from the resistance value after other M resistor coupled in parallel, wherein K is the positive integer more than or equal to 1, N and M For the positive integer more than or equal to 2, and K and M are respectively less than N；One end of the pull-up resistor is connect with the power supply；The pull-up The other end of resistance is connect with one end of an input terminal of the controller and N number of resistance, N number of resistance it is another One end is respectively used to connect with the test side in place of N number of battery；The controller, the voltage for being inputted according to the input terminal Value, determines the access state of N number of battery.It is detected in place from different batteries by using the resistance of different resistance values as a result, End connection, according to the partial pressure value of resistor network, determines the access state of multiple batteries, and one realized merely with controller is defeated Enter end and judge whether multiple batteries access circuit, to save controller input terminal resource, circuit structure is simple, cost It is low.
According to one embodiment of present invention, the voltage of the power supply is less than or equal to the operating voltage of the controller.
According to one embodiment of present invention, the controller, is specifically used for：
By inquiring preset voltage value and battery access state mapping table, determination is currently inputted with the input terminal The corresponding N number of battery of voltage value access state.
According to one embodiment of present invention, the controller, is additionally operable to：
Obtain the voltage value of the resistance value of N number of resistance, the resistance value of the pull-up resistor and the power supply；
According to the resistance value, the resistance value of the pull-up resistor and the voltage value of power supply of N number of resistance, the input terminal is determined Retrievable 2NA input voltage value, wherein 2NA input voltage value corresponds to the 2 of N number of battery respectivelyNKind access state；
According to described 2NThe 2 of a input voltage value and N number of batteryNKind access state, determines the voltage value and battery Access state mapping table.
According to one embodiment of present invention, the controller, is specifically used for：
According toWhen determining that arbitrary m battery access circuit and other N-m battery do not access circuit, institute State the voltage value of input terminal acquisition；
Wherein, RmFor the resistance value after the arbitrary m resistor coupled in parallel, R is the resistance value of the pull-up resistor, and U is the electricity The voltage value in source, m are the positive integer more than or equal to 1, and less than or equal to N.
According to one embodiment of present invention, one end of N number of resistance respectively with one end of the pull-up resistor and institute State the analog-to-digital conversion input terminal connection of controller.
According to one embodiment of present invention, more battery detection circuit for access further include：Analog-digital converter；
The input terminal of the analog-digital converter is connect with one end of one end of N number of resistance and the pull-up resistor；
The output end of the analog-digital converter is connect with the input terminal of the controller.
In addition, the embodiment of the present invention also proposed a kind of electronic equipment comprising above-mentioned more battery detection circuit for access.
In electronic equipment provided by the embodiments of the present application, more battery detection circuit for access include：Resistor network, pull-up electricity Resistance, controller and power supply；The resistor network includes N number of resistance, and the resistance value of N number of resistance is different, and N number of resistance In resistance value after arbitrary K resistor coupled in parallel it is different from the resistance value after other M resistor coupled in parallel, wherein K is more than or equal to 1 Positive integer, N and M are the positive integer more than or equal to 2, and K and M are respectively less than N；One end of the pull-up resistor connects with the power supply It connects；The other end of the pull-up resistor is connect with one end of an input terminal of the controller and N number of resistance, the N The other end of a resistance is respectively used to connect with the test side in place of N number of battery；The controller, for according to the input terminal The voltage value of input determines the access state of N number of battery.As a result, by using the resistance of different resistance values and different electricity Pond test side connection in place, according to the partial pressure value of resistor network, determines the access state of multiple batteries, realizes merely with control One input terminal of device judges whether multiple batteries access circuit, to saving controller input terminal resource, and circuit knot Structure is simple, at low cost.
Description of the drawings
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments Obviously and it is readily appreciated that, wherein：
Fig. 1 is the structural schematic diagram of traditional more battery detection circuit for access；
Fig. 2 is the structural schematic diagram of more battery detection circuit for access of the application one embodiment；
Fig. 3 is the structural schematic diagram of more battery detection circuit for access of the application another embodiment；
Fig. 4 is the structural schematic diagram of the electronic equipment of the application one embodiment.
Reference sign：
Resistance network -21；Pull-up resistor -22；Controller -23；
Power supply -24；Resistance -211；Resistance -212；
Resistance -213；Resistance -214；Analog-digital converter -25；
Electronic equipment -40；More battery detection circuit for access -41.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Specifically, each embodiment of the application is directed to existing detection circuit, it, can when detecting multiple batteries and whether accessing circuit The problem of capable of occupying the multiple ports I/O of controller, cause the waste of controller input terminal resource, proposes one kind merely with control One input terminal of device processed can determine that whether multiple batteries access more battery detection circuit for access of circuit, save controller Input terminal resource, circuit structure is simple, easily realizes and at low cost.
The more battery detection circuit for access proposed according to embodiments of the present invention and electronic equipment described with reference to the accompanying drawings.
Fig. 2 is the structural schematic diagram of more battery detection circuit for access of the application one embodiment.
As shown in Fig. 2, more battery detection circuit for access, including：Resistor network 21, pull-up resistor 22, controller 23 and electricity Source 24；
Wherein, resistor network includes N number of resistance, and the resistance value of N number of resistance is different, and arbitrary K in N number of resistance Resistance value after a resistor coupled in parallel is different from the resistance value after other M resistor coupled in parallel, wherein K is the positive integer more than or equal to 1, N It is the positive integer more than or equal to 2 with M, and K and M are respectively less than N；
One end of the pull-up resistor 22 is connect with the power supply 24；
The other end of the pull-up resistor 22 and an input terminal of the controller 23 and one end of N number of resistance Connection, the other end of N number of resistance are respectively used to connect with the test side in place of N number of battery；
The controller 23, the voltage value for being inputted according to the input terminal, determines the access shape of N number of battery State.
Wherein, include 214,4 resistance 211, resistance 212, resistance 213, resistance resistance progress with resistor network in Fig. 2 Signal, the test side in place for 4 batteries being connect with the other end of 4 resistance is respectively the test side in place of battery 1, battery 2 Test side in place, the test side in place of battery 3, battery 4 test side in place.
It should be noted that when battery 1, battery 2, battery 3 and battery 4 do not access in circuit, supply voltage passes through Pull-up resistor 22 is loaded directly into the input terminal of controller 23, therefore supply voltage is excessively high in order to prevent, and leads to controller 23 Damage, the voltage of power supply 24 need to be less than or equal to the operating voltage of controller 23, to ensure the normal work of controller 23.
When specific works, in more battery detection circuit for access, when 4 batteries all do not access, there is no current loop in circuit, At this point, the voltage value of 23 input terminal of controller input is the voltage value of power supply 24；When any one battery accesses, due to the battery Test side in place be connected with the cathode of the battery, form access between the test side in place and power supply 24 of the battery, at this time with The resistance of the test side in place connection of the battery is to be connected in series with pull-up resistor 22, is divided to the voltage of power supply 24, because The voltage value of this 23 input terminal of controller input, for the ohmically partial pressure value being connect with the test side in place of the battery；Arbitrary K When a battery access, access is formed between the test side in place and power supply 24 of the K battery, it is in place with the K battery at this time After the connection of K resistor coupled in parallel that test side is separately connected, then with pull-up resistor 22, the voltage of power supply 24 is divided, therefore The voltage value of 23 input terminal of controller is the partial pressure value in K parallel resistance.Due to N number of resistance in resistor network resistance value not Together, the resistance value and in N number of resistance after arbitrary K resistor coupled in parallel is different from the resistance value after other M resistor coupled in parallel, therefore when difference Battery access when, 23 input terminal of controller input voltage value it is also different, controller 23 can be according to current input terminal The voltage value of input judges the current access state of N number of battery.
By above-mentioned analysis it is found that when different batteries access, the voltage value of the input terminal input of controller 23 is different, therefore In a kind of possible way of realization of the application, voltage value and the battery access of input terminal can be set in controller 23 in advance The mapping table of state, it is determined that after the voltage value of input terminal input, you can pass through and inquire preset voltage value and battery Access state mapping table determines the access state of N number of battery corresponding with the voltage value that input terminal currently inputs.
Specifically, determining the process of the voltage value of input terminal and the mapping table of battery access state, can specifically wrap Include following steps：
S101 obtains the resistance value of N number of resistance, the voltage value of the resistance value of the pull-up resistor 22 and the power supply 24；
S102 is determined according to the voltage value of the resistance value of N number of resistance, the resistance value of the pull-up resistor 22 and power supply 24 The input terminal retrievable 2NA input voltage value, wherein 2NA input voltage value corresponds to the 2 of N number of battery respectivelyNKind Access state；
S103, according to described 2NThe 2 of a input voltage value and N number of batteryNKind access state, determines the voltage value With battery access state mapping table.
Specifically, when 1 battery accesses circuit, if the resistance value for the resistance being connect with the battery is R1, then controller 23 The voltage value U of input terminal input1For,Wherein, R is the resistance value of pull-up resistor, and U is the voltage value of power supply 24.
When m battery accesses circuit, and m is more than 1, then the voltage value of 23 input terminal of controller input, is and this m electricity Resistance R after the m resistor coupled in parallel that the test side end in place in pond is separately connectedmOn partial pressure value Um, i.e.,
As an example it is assumed that the resistance value of resistance 211 is 10K ohm (10 kilohms), the resistance value of resistance 212 is 20K ohm, The resistance value of resistance 213 is 40K ohm, the resistance value of resistance 214 is 90K ohm, and the voltage value U of power supply 24 is 3.3V (volt), battery 1 When accessing circuit, resistance 211 is connected with pull-up resistor 22, and the voltage value that 23 input terminal of controller obtains isWhen battery 1 and battery 3 access circuit, after 213 parallel connection of resistance 211 and resistance again with pull-up resistor 22 Series connection, and the resistance value after 213 parallel connection of resistance 211 and resistance is 8K ohm, the voltage value that 23 input terminal of controller obtains is
It is understood that each battery has access or do not access 2 kinds of states, then N number of battery has 2NKind access state, and Each access state can pass throughThe voltage value for uniquely determining the acquisition of an input terminal, according to 2NKind access State and 2NA input voltage, you can voltage value and battery access state mapping table are determined, to which input terminal be determined After the voltage value of input, by inquiring voltage value and battery access state mapping table, you can determine the access shape of N number of battery State.
As an example it is assumed that voltage value and battery access state mapping table are as shown in table 1, wherein " S4 ", " S3 ", " S2 ", " S1 " indicate that the access state of battery 4, battery 3, battery 2, battery 1, " having " indicate that battery accesses circuit, "None" respectively Indicate that battery does not access circuit, " corresponding voltage " indicates the voltage of controller input terminal input corresponding with battery access state Value.
So if it is determined that the voltage value of controller input terminal input is 2.400V, you can access shape according to voltage value and battery State mapping table determines that battery 1 and battery 2 do not access circuit, and battery 3 and battery 4 access circuit.
1 voltage value of table and battery access state mapping table
Number S4 S3 S2 S1 Corresponding voltage
1 Nothing Nothing Nothing Nothing 3.300V
2 Have Nothing Nothing Nothing 2.930V
3 Nothing Have Nothing Nothing 2.640V
4 Have Have Nothing Nothing 2.400V
5 Nothing Nothing Have Nothing 2.200V
6 Have Nothing Have Nothing 2.030V
7 Nothing Have Have Nothing 1.884V
8 Have Have Have Nothing 1.760V
9 Nothing Nothing Nothing Have 1.650V
10 Have Nothing Nothing Have 1.553V
11 Nothing Have Nothing Have 1.467V
12 Have Have Nothing Have 1.389V
13 Nothing Nothing Have Have 1.320V
14 Have Nothing Have Have 1.257V
15 Nothing Have Have Have 1.198V
16 Have Have Have Have 1.147V
It should be noted that in practice, the voltage value of 23 input terminal of controller input, with basisThe voltage value that determining input terminal obtains, it is understood that there may be small error, therefore, in the embodiment of the present application, The voltage value and basis of the input of 23 input terminal of controller can be pre-setThe voltage that determining input terminal obtains The error range of value according to the voltage value that input terminal inputs, determines the access state of N number of battery in error range.
Wherein, error range, can be according to the 2 of N number of batteryNThe corresponding voltage value of kind access state is determined, For example, if the minimum value of the difference between the corresponding voltage value of each access state is 0.1V, error range can be arranged For on judge battery value of the access state without influence, for example, being set as 0.01V.
In addition, when the number of batteries for carrying out access detection is more, the type of the access state of battery also accordingly increases More, in order to avoid differing smaller between the corresponding voltage value of different access states, access state is difficult to differentiate between, and is implemented in the application In example, analog voltage can also be converted to high-precision digital signal, and determine battery access state and digital signal Mapping table, to according to digital signal, determine the access state of battery.
It, can be by the other end and N of an analog-to-digital conversion input terminal and pull-up resistor 22 for controller 23 when specific implementation One end of a resistance connects, and analog-to-digital conversion is carried out with a pair voltage value corresponding with access state, to which controller 23 can basis The digital signal of analog-to-digital conversion input terminal input, determines the access state of N number of battery.
Alternatively, analog-digital converter 25 can also be arranged, wherein mould as shown in figure 3, in more battery detection circuit for access The input terminal of number converter 25 is connect with one end of one end of N number of resistance and pull-up resistor 22, the output end of analog-digital converter 25 It is connect with the input terminal of controller 23, analog-to-digital conversion is carried out with a pair voltage value corresponding with access state, to which controller 23 is The digital signal that can be exported according to analog-digital converter 25, determines the access state of N number of battery.
As an example it is assumed that digital signal and battery access state mapping table are as shown in table 2, wherein " S4 ", " S3 ", " S2 ", " S1 " indicate that the access state of battery 4, battery 3, battery 2, battery 1, " having " indicate that battery accesses circuit respectively, "None" indicates that battery does not access circuit, and " corresponding voltage " indicates the electricity of controller input terminal input corresponding with battery access state Pressure value, " understanding coding " indicate the digital signal of controller input terminal input corresponding with battery access state.If so current The digital signal of input terminal input is 0011, then can be determined according to digital signal and battery access state mapping table Battery 1 and battery 2 do not access circuit, and battery 3 and battery 4 access circuit.
2 digital signal of table and battery access state mapping table
Number S4 S3 S2 S1 Corresponding voltage Understand coding
1 Nothing Nothing Nothing Nothing 3.300V 0000
2 Have Nothing Nothing Nothing 2.930V 1000
3 Nothing Have Nothing Nothing 2.640V 0100
4 Have Have Nothing Nothing 2.400V 1100
5 Nothing Nothing Have Nothing 2.200V 0010
6 Have Nothing Have Nothing 2.030V 1010
7 Nothing Have Have Nothing 1.884V 0110
8 Have Have Have Nothing 1.760V 1110
9 Nothing Nothing Nothing Have 1.650V 0001
10 Have Nothing Nothing Have 1.553V 1001
11 Nothing Have Nothing Have 1.467V 0101
12 Have Have Nothing Have 1.389V 1101
13 Nothing Nothing Have Have 1.320V 0011
14 Have Nothing Have Have 1.257V 1011
15 Nothing Have Have Have 1.198V 0111
16 Have Have Have Have 1.147V 1111
More battery detection circuit for access provided by the embodiments of the present application, including：Resistor network, pull-up resistor, controller and Power supply；The resistor network includes N number of resistance, and the resistance value of N number of resistance is different, and arbitrary K electricity in N number of resistance Resistance value after resistance is in parallel is different from the resistance value after other M resistor coupled in parallel, wherein K is the positive integer more than or equal to 1, N and M For the positive integer more than or equal to 2, and K and M are respectively less than N；One end of the pull-up resistor is connect with the power supply；The pull-up The other end of resistance is connect with one end of an input terminal of the controller and N number of resistance, N number of resistance it is another One end is respectively used to connect with the test side in place of N number of battery；The controller, the voltage for being inputted according to the input terminal Value, determines the access state of N number of battery.It is detected in place from different batteries by using the resistance of different resistance values as a result, End connection, according to the partial pressure value of resistor network, determines the access state of multiple batteries, and one realized merely with controller is defeated Enter end to judge whether multiple batteries access circuit, to save controller input terminal resource, and circuit structure is simple, cost It is low.
Fig. 4 is the structural schematic diagram of the electronic equipment of the application one embodiment.
As shown in figure 4, the electronic equipment 40 includes：More battery detection circuit for access 41.
Wherein, the structure and operation principle of more battery detection circuit for access can refer to explaining for the various embodiments described above Bright, details are not described herein again.
In electronic equipment provided by the embodiments of the present application, more battery detection circuit for access include：Resistor network, pull-up electricity Resistance, controller and power supply；The resistor network includes N number of resistance, and the resistance value of N number of resistance is different, and N number of resistance In resistance value after arbitrary K resistor coupled in parallel it is different from the resistance value after other M resistor coupled in parallel, wherein K is more than or equal to 1 Positive integer, N and M are the positive integer more than or equal to 2, and K and M are respectively less than N；One end of the pull-up resistor connects with the power supply It connects；The other end of the pull-up resistor is connect with one end of an input terminal of the controller and N number of resistance, the N The other end of a resistance is respectively used to connect with the test side in place of N number of battery；The controller, for according to the input terminal The voltage value of input determines the access state of N number of battery.As a result, by using the resistance of different resistance values and different electricity Pond test side connection in place, according to the partial pressure value of resistor network, determines the access state of multiple batteries, realizes merely with control One input terminal of device judges whether multiple batteries access circuit, to saving controller input terminal resource, and circuit knot Structure is simple, at low cost.
In the description of the present invention, it is to be understood that, the orientation of instructions such as term " area ", " width ", " circumferential direction " or Position relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without It is instruction or implies that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore not It can be interpreted as limitation of the present invention.
In the present invention unless specifically defined or limited otherwise, the terms such as term " setting ", " connection " should do broad sense reason Solution, for example, it may be mechanical connection, can also be electrical connection；It can be directly connected, the indirect phase of intermediary can also be passed through Even, can be the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this For the those of ordinary skill in field, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is contained in the M embodiment or example of the present invention.In the present specification, schematic expression of the above terms necessarily needle To be identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can any one or It can be combined in any suitable manner in multiple embodiments or example.In addition, without conflicting with each other, those skilled in the art The feature of different embodiments or examples described in this specification and different embodiments or examples can be combined and group It closes.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changes, replacing and modification.

Claims (8)

1. a kind of more battery detection circuit for access, which is characterized in that including：Resistor network, pull-up resistor, controller and power supply；
The resistor network includes N number of resistance, and the resistance value of N number of resistance is different, and arbitrary K electricity in N number of resistance Resistance value after resistance is in parallel is different from the resistance value after other M resistor coupled in parallel, wherein K is the positive integer more than or equal to 1, N and M For the positive integer more than or equal to 2, and K and M are respectively less than N；
One end of the pull-up resistor is connect with the power supply；
The other end of the pull-up resistor is connect with one end of an input terminal of the controller and N number of resistance, described The other end of N number of resistance is respectively used to connect with the test side in place of N number of battery；
The controller, the voltage value for being inputted according to the input terminal, determines the access state of N number of battery.
2. circuit as described in claim 1, which is characterized in that the voltage of the power supply is less than or equal to the work of the controller Make voltage.
3. circuit as described in claim 1, which is characterized in that the controller is specifically used for：
By inquiring preset voltage value and battery access state mapping table, the electricity currently inputted with the input terminal is determined Pressure is worth the access state of corresponding N number of battery.
4. circuit as claimed in claim 3, which is characterized in that the controller is additionally operable to：
Obtain the voltage value of the resistance value of N number of resistance, the resistance value of the pull-up resistor and the power supply；
According to the resistance value, the resistance value of the pull-up resistor and the voltage value of power supply of N number of resistance, determine that the input terminal can obtain 2 takenNA input voltage value, wherein 2NA input voltage value corresponds to the 2 of N number of battery respectivelyNKind access state；
According to described 2NThe 2 of a input voltage value and N number of batteryNKind access state determines that the voltage value is accessed with battery State mapping table.
5. circuit as claimed in claim 4, which is characterized in that the controller is specifically used for：
According toIt is described defeated when determining that arbitrary m battery access circuit and other N-m battery do not access circuit Enter the voltage value that end obtains；
Wherein, RmFor the resistance value after the arbitrary m resistor coupled in parallel, R is the resistance value of the pull-up resistor, and U is the electricity of the power supply Pressure value, m are the positive integer more than or equal to 1, and less than or equal to N.
6. circuit according to any one of claims 1 to 5, which is characterized in that one end of N number of resistance respectively with the pull-up The analog-to-digital conversion input terminal of one end of resistance and the controller connects.
7. circuit according to any one of claims 1 to 5, which is characterized in that further include：Analog-digital converter；
The input terminal of the analog-digital converter is connect with one end of one end of N number of resistance and the pull-up resistor；
The output end of the analog-digital converter is connect with the input terminal of the controller.
8. a kind of electronic equipment, which is characterized in that include more battery detection circuit for access as described in claim 1-7 is any.
CN201710074178.4A 2017-02-10 2017-02-10 More battery detection circuit for access and electronic equipment Pending CN108414870A (en)

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CN109239609A (en) * 2018-11-02 2019-01-18 西安航远数字技术有限公司 A kind of in-place detection system of unmanned plane more batteries in parallel
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CN111474453A (en) * 2020-05-15 2020-07-31 中国第一汽车股份有限公司 Insulation detection circuit, method for detecting insulation fault of component and vehicle
CN114625684A (en) * 2021-12-28 2022-06-14 昆明能讯科技有限责任公司 Multi-device access identification method based on ADC sampling

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CN201740857U (en) * 2010-04-02 2011-02-09 谢道平 Battery detection circuit
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CN109239609A (en) * 2018-11-02 2019-01-18 西安航远数字技术有限公司 A kind of in-place detection system of unmanned plane more batteries in parallel
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CN111337841A (en) * 2018-11-30 2020-06-26 南昌华勤电子科技有限公司 Mobile terminal and battery state detection system thereof
CN110531272A (en) * 2019-08-27 2019-12-03 烟台创为新能源科技有限公司 A kind of battery thermal runaway detection system automatic coding
CN111474453A (en) * 2020-05-15 2020-07-31 中国第一汽车股份有限公司 Insulation detection circuit, method for detecting insulation fault of component and vehicle
CN114625684A (en) * 2021-12-28 2022-06-14 昆明能讯科技有限责任公司 Multi-device access identification method based on ADC sampling

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