CN208174307U - It is capable of the charger of intelligent recognition battery matching current - Google Patents
It is capable of the charger of intelligent recognition battery matching current Download PDFInfo
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- CN208174307U CN208174307U CN201820492941.5U CN201820492941U CN208174307U CN 208174307 U CN208174307 U CN 208174307U CN 201820492941 U CN201820492941 U CN 201820492941U CN 208174307 U CN208174307 U CN 208174307U
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Abstract
This application involves the chargers that one kind is capable of intelligent recognition battery matching current, including shell；And Switching Power Supply in the shell, constant-current circuit, controller are set；The first input end of the Switching Power Supply is used to connect external power supply；Second input terminal of the Switching Power Supply is connect with the output end of the constant-current control circuit；The output end of the Switching Power Supply is used to connect external battery to be charged；The input terminal of the constant-current control circuit is connect with the output end of the controller；Battery to be charged outside the input terminal connection of the controller.The application can identify and export matching current, avoid the problem that causing because of the communication channel set up between charger and battery.
Description
Technical field
This application involves charger technologies field, especially a kind of charger for capableing of intelligent recognition battery matching current.
Background technique
The video camera of various different brands, difference of these video cameras due to function and power consumption can be applied in daily life
It is different, used battery capacity a great variety, in addition, same video camera can also be selected according to different scenes using different
The battery of capacity.Cost waste is not only resulted in for the battery configuration dedicated charger of every kind of capacity, can also give video camera
Using causing inconvenience.
The interface of the battery used due to these video cameras be it is identical, the charging of fixed current type can be used
Device charges for it, however, selecting electric current can be highly difficult for charger, selects electric current relatively low, and charging safety is secure, however for
The charging time can be very long for the battery of large capacity；Select electric current higher, the charging time can shorten, however for the electricity of low capacity
Charging is overcharged in the presence of very big security risk for pond.
In the related technology, intelligent video camera charger can configure suitable charging current according to battery specifications and reach
Ideal effect, but this intelligent video camera charger is typically necessary the communication established between charger and battery pack and leads to
Road, charger are needed with hardware capabilities such as current detecting, voltage detecting, capacity measurement, communications, and matched battery is also required to have
There are parameter detecting and communication function, this scheme is since design is complicated, and hardware cost is high, and video camera charger belongs to civilian disappear
Fei Pin can not receive complicated solution and technology at high cost, therefore, in civilian video camera products to cost sensitivity
It is not used widely.
Utility model content
To be overcome the problems, such as present in the relevant technologies at least to a certain extent, the application provides one kind being capable of intelligent recognition
The charger of battery matching current, including：Shell；
Switching Power Supply in the shell, constant-current control circuit, controller are set；
The Switching Power Supply includes：The first input end of Switching Power Supply, the second input terminal of Switching Power Supply and Switching Power Supply
Output end；
The constant-current control circuit includes：The input terminal of current constant control and the output end of current constant control；
The controller includes：The input terminal of controller and the output end of controller；
The first input end of the Switching Power Supply is used to connect external power supply；
Second input terminal of the Switching Power Supply is connect with the output end of the constant-current control circuit；
The output end of the Switching Power Supply is used to connect external battery to be charged；
The input terminal of the constant-current control circuit is connect with the output end of the controller；
Further, the input terminal of the constant-current control circuit is connect with the output end of the controller, and input signal is
Digital signal；The output end of the constant-current control circuit is connect with the second input terminal of the Switching Power Supply, control switch power supply
Export electric current.
Further, the charger further includes：
First resistor, second resistance and 3rd resistor in the shell are set；
The first resistor, second resistance and 3rd resistor be connected in parallel the constant-current circuit input terminal and the control
Between the second end of device processed.
Further, the charger further includes：
The 4th resistance and the 5th resistance in the shell are set；
One end of 4th resistance connects the third end of the controller, and the other end is used to connect external electricity to be charged
Pond；
One end of 5th resistance connects the third end of the controller, other end ground connection.
Further, the charger further includes：
6th resistance is set in the shell；
6th resistance is arranged between Switching Power Supply third end and the battery to be charged of outside.
Further, the charger further includes：
Charging indicator light, setting on the housing, are connect with the controller.
Further, the charging indicator light includes light emitting diode, and one end of the light emitting diode connects the control
4th end of device processed, other end ground connection.
Further, the charger further includes：
Output line, plug；
The output line passes through the shell；
The outside of the shell is arranged in the plug；
One end of the output line connects the Switching Power Supply, and the other end connects the plug.
Further, the plug is the dedicated Type B plug of video camera.
Further, the controller is single-chip microcontroller.
The technical solution that embodiments herein provides can include the following benefits：
The application is the constant-current circuit, the controller and external cell power supply due to the Switching Power Supply；The control
System is partially by calculating the voltage difference of different moments, inquiry single-chip microcontroller storage inside pressure difference-gear-current relationship control
Table identifies matching current gear and is sent to constant-current circuit, and constant-current circuit control switch power supply exports matching current.Therefore originally
Application can be achieved with charging current in the communication channel for being not required to set up between charger and battery and the intelligence of battery is known
Not and matching current is exported, does not increase additional hardware cost, and easy to use.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The application can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and together with specification it is used to explain the principle of the application.
Fig. 1 is the entirety for the charger that one kind that the application one embodiment provides is capable of intelligent recognition battery matching current
Structural schematic diagram.
Fig. 2 is the inside for the charger that one kind that the application one embodiment provides is capable of intelligent recognition battery matching current
Structural schematic diagram.
Fig. 3 is the charging for the charger that one kind that the application one embodiment provides is capable of intelligent recognition battery matching current
Flow chart.
Specific embodiment
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
Fig. 1 is the entirety for the charger that one kind that the application one embodiment provides is capable of intelligent recognition battery matching current
Structural schematic diagram.
As shown in Figure 1, charger provided in this embodiment includes：
Shell 12；
Switching Power Supply, constant-current control circuit and controller in the shell 12 are set；
The Switching Power Supply includes：The first input end of Switching Power Supply, the second input terminal of Switching Power Supply and Switching Power Supply
Output end；
The constant-current control circuit includes：The input terminal of constant-current control circuit and the output end of constant-current control circuit；
The controller includes：The input terminal of controller and the output end of controller；
The first input end of the Switching Power Supply is used to connect external power supply；
Second input terminal of the Switching Power Supply is connect with the output end of the constant-current control circuit；
The output end of the Switching Power Supply is used to connect external battery to be charged；
The input terminal of the constant-current control circuit is connect with the output end of the controller；
Battery to be charged outside the input terminal connection of the controller.
As shown in Figure 1, Switching Power Supply, constant-current control circuit and controller can integrate on mainboard 13, mainboard 13 is arranged
In the inside of shell 12.
Further, as shown in Figure 1, the charger can also include input interface 11.
Input interface 11 can be embedded on shell 12.
The output end of input interface 11 connects mainboard 13, specifically can be with the first input end of the Switching Power Supply on mainboard 13
Connection, the input terminal of input interface 11 are used to access external power supply, and external power supply is, for example, AC power source, is specifically as follows
Alternating current.
Further, as shown in Figure 1, the charger can also include：Output line 14, output line 14 pass through shell 12.Than
Such as, through-hole is provided on shell 12, output line 14 is pierced by shell by the through-hole.Output line 14 can be common wiring.
One end of output line 14 connects mainboard 13, can specifically connect with the output end of the Switching Power Supply on mainboard 13, defeated
The other end of outlet 14 is for connecting battery to be charged.To, Switching Power Supply by output line 14 can for battery to be charged into
Row charging.
Further, as shown in Figure 1, the charger can also include：Plug 15.
When battery to be charged is video camera battery, plug 15 can be specially the dedicated Type B plug of video camera.
By output line 14 and plug 15, Switching Power Supply can charge to video camera battery.
Further, as shown in Figure 1, the charger can also include：Charging indicator light 16 is arranged on shell 12, than
Such as, it inlays on the shell.
Charging indicator light 16 is used to indicate charged state.For example, being indicated uncharged when charging indicator light extinguishes；When filling
When electric indicator light shiny red, indicate in charging progress, battery underfill electricity；When charging indicator light bright green, battery is indicated
Have been filled with electricity.
Controller has the ability of the battery voltage value and charging current value that obtain battery to be charged, for example is single-chip microcontroller.
Specifically, the input terminal of controller can be divided into two input terminals, different voltage values is acquired respectively, and according to the voltage of acquisition
Value calculates separately battery voltage value and charging current value.
Controller, can be with after the relevant information for getting battery to be charged, such as battery voltage value and charging current value
Generate control signal according to above-mentioned relevant information, and send control signals to constant-current control circuit, constant-current control circuit according to
The control Signal-controlled switch power supply that controller generates exports corresponding constant current.
Switching Power Supply is the time ratio turned on and off by control switch pipe, maintains to stabilize the output voltage, switch electricity
The main control chip in source can be NCP1230 chip, which executes the current mode flyback converter control structure of a standard, it
It is used in that element is few, the optimal candidate chip of inexpensive adapter.Switching Power Supply can export constant voltage at work, and
Constant current is exported under the control of constant-current control circuit under specified conditions.In addition, Switching Power Supply can also be current constant control electricity
Road and controller are powered.
The output of constant-current control circuit control switch source current, constant-current control circuit can by LM2902, TL431 and
Tri- chip compositions of 2N7002,2N7002 chip is transistor, by realizing that digital signal and simulation are believed compared with reference voltage
Number conversion, TL431 is controllable accurate source of stable pressure, converts for digital signal and analog signal conversion and provides reference voltage,
LM2902 is low power consumpting quadri-operational amplifier, analog signal can be amplified.2N7002 chip receive digital signal, by with
The reference voltage that TL431 chip provides compares output analog signal, and output extremely switchs after LM2902 chip amplifies analog signal
Power supply controls electric current output.
Controller is single-chip microcontroller, using very large scale integration technology the central processing unit with data-handling capacity
It is CPU, random access memory ram, read only memory ROM, I/O mouthfuls and to interrupt system, timer/counter etc. integrated a variety of, it can be with
It realizes storage list, acquisition, recording voltage, calculates pressure difference, collected voltage is converted into the functions such as electric current.
In the present embodiment, the first input end of Switching Power Supply is used to connect the output of external power supply and Switching Power Supply
It holds for connecting external battery to be charged, therefore, Switching Power Supply can charge for battery to be charged；Controller connection to
Rechargeable battery, therefore controller can detecte the relevant information of battery to be charged, such as battery voltage value and charging current value；Control
The output end connection switch power supply of the input terminal connection and constant-current control circuit of the output end and constant-current control circuit of device processed
Second input terminal, therefore, controller can control Switching Power Supply by constant-current control circuit；To sum up, Switching Power Supply exists
During being charged for battery to be charged, controller can be carried out Switching Power Supply according to the relevant information of battery to be charged
Control, and then the charging current that can be exported according to the actual conditions regulating switch power supply of battery to be charged, realize intelligent recognition
Battery matching current.
Fig. 2 is the inside for the charger that one kind that the application one embodiment provides is capable of intelligent recognition battery matching current
Structural schematic diagram.
As shown in Fig. 2, on the basis of a upper embodiment, further：
The first input end of Switching Power Supply 21 connects constant current for accessing AC power source, the second input terminal of Switching Power Supply 21
The output end of control circuit 22, the output end of Switching Power Supply 21 are used to mention by the battery to be charged outside output line connection
It is exported for charging.
The output end of the input terminal connection controller 23 of constant-current control circuit 22.
Further, one or more connecting line can be set between constant-current control circuit 22 and controller 23.Specifically
The item number of connecting line can be determined according to the gear number of charging current, for example, charging current has 7 gears, then setting such as Fig. 2
Shown in three connecting lines.It, can be in actual implementation it is understood that three connecting lines can at most support 8 gears
The gear number that selection needs as needed.
Further, resistance can be set on every connecting line, to avoid short circuit, protects circuit.
For example, as shown in Fig. 2, respectively arranged resistance is properly termed as first resistor R1, the second electricity in three connection lines
Hinder R2 and 3rd resistor R3.The resistance value of first resistor, second resistance and 3rd resistor can select according to actual needs, Ke Yixiang
It is same or different, for example, first resistor, second resistance and 3rd resistor are selected as 100 Ω.
The input terminal of the controller 23 is used to connect external battery to be charged, for example, as shown in Fig. 2, controller 23
There are two input terminal, an input terminal is connected on output line by the 4th resistance R4, to pass through the 4th resistance and output line
It is connect with battery to be charged, another input terminal is directly connected on output line, is connect by output line with battery to be charged.
The controller 23 is connect by input terminal with battery to be charged, the relevant information of available battery to be charged,
For example, battery voltage value and charging current value.
When obtaining battery voltage value, as shown in Fig. 2, the charger can also include：5th resistance R5, the 5th resistance R5
One end connection controller 23 input terminal, the other end ground connection.
Specifically, the controller 23 can detecte the voltage value of the 5th resistance, and according to the resistance value of the 4th resistance and
The resistance value of five resistance, calculates battery voltage value, for example, the voltage value of the 5th resistance of detection is V0, the resistance value of the 4th resistance
It is indicated respectively with R4 and R5 with the resistance value of the 5th resistance, then battery voltage value V=V0* (R4/R5).
In order to protect controller, avoid detecting excessive voltage, in general, the resistance value of the 5th resistance is less than the 4th electricity
The resistance value of resistance, for example, the resistance value of the 4th resistance is 10k Ω, the resistance value of the 5th resistance is 3.3k Ω.
Further, the charger further includes the 6th resistance R6, for example, resistance value is 10m Ω, setting is on the output line.
The controller 23 is also used to acquire the voltage on the 6th resistance R6, the voltage and the 6th resistance further according to acquisition
Computing the resistor value goes out the current value passed through on the 6th resistance R6, using the current value being calculated as charging current value, fills when described
Electric current value determines that electricity has been filled with when being less than threshold value.The threshold value is such as 0.3A.
The controller 23, can be based on the battery electricity of acquisition after obtaining above-mentioned battery voltage value and charging current value
Pressure value and charging current value control Switching Power Supply 21 by constant-current control circuit 22, so that Switching Power Supply 21 is in difference
In the case of export different constant currents and charge the battery.
Relationship table between the 23 internal preset electric current gear (or electric current) of controller and control signal, therefore,
The controller 23 can generate corresponding control letter after determining electric current gear (or electric current) according to the relationship table
Number.
The controller 23 can send control signals to constant current control by the route between constant-current control circuit 22
Received control signal is converted to the identifiable form of Switching Power Supply 21 again and is sent to out by circuit 22 processed, constant-current control circuit 22
Powered-down source 21, so that Switching Power Supply 21 is exported accordingly under control of the control signal.
When the controller 23 sends control signals to constant-current control circuit 22, controller 23 and current constant control can be used
The different conditions of connecting line between circuit 22 correspond to different control signals.
Assuming that every connecting line is, for example, 0 or 1 there are two types of output state, then three connecting lines can at most symbolize 8 kinds
Electric current gear.Assuming that needing 7 electric current gears, then it can configure electric current gear and connecting line state corresponding relationship is as shown in table 1：
Table 1
Further, the controller 23 can recorde the voltage value of different moments, for example, electricity when record connection battery
Pressure value and the voltage value after charging 10 minutes, and the voltage difference of different moments is calculated, it is stored in advance by searching for inside
Pressure difference-gear-current relationship table of comparisons identify the electric current gear and current value to match with battery to be charged, and according to knowledge
Not Chu electric current gear and electric current gear and control signal between relationship table, determine control signal, and will control
Signal is sent to the constant-current control circuit 22, and the constant-current control circuit 22 controls Switching Power Supply 21 according to control signal
System, Switching Power Supply 21 generate corresponding output electric current according to the control of constant-current control circuit 22.Pressure difference-the gear-electric current closes
It is that the table of comparisons can be as shown in table 2：
Table 2
For example, controller is obtained according to pressure difference-gear-current relationship table of comparisons if the pressure difference V3 being calculated is 80mV
Matching electric current gear is 5 grades, and corresponding constant-current charge electric current is 6A, so that controller 23 passes through constant-current control circuit 22
Control switch power supply 21 exports 5 grades i.e. 6A electric current.
In some embodiments, by taking the battery to video camera charges as an example, charging process is divided into pre-charge process, mark
Quasi- charging process, constant-current charge process and constant-voltage charge process four-stage, in the various stages, controller constantly acquires battery
Voltage and charging current.
First stage is pre-charge process, including：After charger connects upper video camera, the 5th resistance R5 electricity of controller acquisition
It presses and battery voltage value is obtained according to the 4th resistance R4 and the 5th resistance R5 resistance value ratio, battery voltage value is judged, if
The battery voltage value is lower than the first voltage value, then starts to be pre-charged, and controller passes through constant-current control circuit control switch
Power supply exports the first current value, to be charged using the first current value to the battery of video camera.The first voltage value and the first electricity
Flow valuve is smaller value, for example, the first voltage value is 14.4V, the first current value is 2A.
In addition, in pre-charge process, if the battery voltage value that controller obtains is greater than after charger connects upper video camera
Or it is equal to the first voltage value, this process can be directly skipped over, second stage or fourth stage are directly entered.
Second stage is standard charging process, including：When the battery voltage value that controller obtains is greater than or equal to the first electricity
Pressure value and be less than second voltage value when, then enter standard charging process.During standard charging, controller passes through current constant control
Circuit controling switch power supply exports the second current value and continues ending standard charging process after preset time, to use the second electric current
It is worth the battery charging preset time to video camera.For example, second voltage value is 16.8V, the second current value is 3A, and preset time is
10 minutes.
Battery voltage value in addition, during standard charging, when controller is also used to record into standard charging process
V1 and battery voltage value V2 when ending standard charging process, and calculate the difference V3=V2-V1 of V2 and V1.
If the collected voltage value of controller is greater than or equal to second voltage value after charger connects upper video camera, can be straight
It connects and skips over this process, be directly entered fourth stage.
Phase III is constant-current charge process, including：After standard charging process, controller is deposited in advance by inquiry
Pressure difference-gear of storage-current relationship table of comparisons obtains current value I corresponding with the pressure difference V3 being calculated, and passes through constant current control
Circuit controling switch power supply output size processed is the electric current of I.For example, calculated pressure difference V3 is 80mV, then it is corresponding according to table 2
Current value I be 6A, then control switch power supply constant current output 6A is charged the battery.
Fourth stage is constant-voltage charge process, including：When the battery voltage value that controller is got is greater than or equal to second
When voltage value, whether the charging current value that controller judgement is calculated is less than charging current threshold value, if charging current value is less than
Charging current threshold value then directly terminates charging process；If charging current value is not less than charging current threshold value, second voltage is maintained
The voltage of value continues to charge, and the uncontrolled device of charging current and constant-current control circuit control at this time, determines according to battery behavior, when
When the charging current value that controller is calculated is less than rechargeable battery threshold value, determine that battery capacity has been filled with.
In conjunction with above-mentioned numerical example, that is, assuming that the first voltage value is 14.4V, second voltage value 16.8V, the first electric current
Value is 2A, and the second current value is 3A, and preset time is 10 minutes, and charging current threshold value is 0.3A, below to charger to camera shooting
The charging process of machine battery is described.
Fig. 3 is the charging for the charger that one kind that the application one embodiment provides is capable of intelligent recognition battery matching current
Flow chart.
As shown in figure 3, charging process includes：
S301：After charger is connect using plug with video camera, controller obtains battery voltage value.
S302：Controller judges range belonging to battery voltage value, if battery voltage value is less than 14.4V, executes
S303；If battery voltage value is greater than or equal to 14.4V and is less than 16.8V, S306 is executed；If battery voltage value be greater than or
S310 is then executed equal to 16.8V.
S303：Controller exports 2A electric current by constant-current control circuit control switch power supply and fills to the battery of video camera
Electricity, and, it is carried out in charging process in Switching Power Supply using battery of the 2A electric current to video camera, controller obtains battery electricity in real time
Pressure value, charging indicator light flashes the redlight at this time.
S304：Controller judges whether battery voltage value is greater than or equal to 14.4V, if so, executing S305, otherwise, repeats
Execute S303 and its subsequent step.
S305：Controller records battery voltage value V1 this moment, and exports 3A by constant-current control circuit control switch power supply
Electric current charges to the battery of video camera, and charging obtains after ten minutes and records battery voltage value V2；
S306：Controller calculates the difference V3=V2-V1 of V2 and V1, by inquiring pre-stored pressure difference-gear-electric current
Relationship table obtains current value I corresponding with the pressure difference V3 being calculated.
S307：Controller is by electric current that constant-current control circuit control switch power supply output size is I to the electricity of video camera
Pond is charged, and, it is carried out in charging process in Switching Power Supply using battery of the constant current I to video camera, controller is real
When obtain battery voltage value.
For example, pressure difference V3 is 80mV, then according to table 2, corresponding current value I is 6A, then control switch power supply constant current output
6A is charged the battery.
S308：Controller judges whether battery voltage value is greater than or equal to 16.8V, if so, executing S309, otherwise repeats to hold
Row S307 and its subsequent step.
S309：Whether the charging current value that controller judgement is calculated is less than charging current threshold value 0.3A, if charging electricity
Flow valuve is less than 0.3A and then executes S310；If charging current value is not less than 0.3A, S311 is executed.Maintain the voltage of second voltage value
Continue to charge, until charging current value is less than 0.3A.
S310：Terminate charging process, charging indicator light lights green light.
S311：It maintains the constant voltage of 16.8V to continue to charge, and calculates charging current value in real time, repeat later
S309 and its subsequent step.
In the present embodiment, controller calculates pressure difference and inquires pressure difference and the current relationship table of comparisons by acquisition cell voltage,
Identification and the matched charging current gear of battery, and gear signal is sent to constant-current circuit, constant-current circuit turns the gear
Change the output of charging current control switch power supply into.Judge whether charging process terminates by acquiring cell current value.Therefore, pass through
The charging current gear to match with battery can be identified and export by establishing a pressure difference-gear-current relationship table of comparisons
The gear charging current is battery charging, is not required to the support of additional hardware equipment, to reduce hardware cost, adapts to civilian need
It asks.
It is understood that same or similar part can mutually refer in the various embodiments described above, in some embodiments
Unspecified content may refer to the same or similar content in other embodiments.
It should be noted that term " first ", " second " etc. are used for description purposes only in the description of the present application, without
It can be interpreted as indication or suggestion relative importance.In addition, in the description of the present application, unless otherwise indicated, the meaning of " multiple "
Refer at least two.
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 at least one embodiment or example of the application.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although embodiments herein has been shown and described above, it is to be understood that above-described embodiment is example
Property, it should not be understood as the limitation to the application, those skilled in the art within the scope of application can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
It should be noted that the present invention is not limited to above-mentioned preferred forms, those skilled in the art are of the invention
Other various forms of products can be all obtained under enlightenment, however, make any variation in its shape or structure, it is all have with
The identical or similar technical solution of the application, is within the scope of the present invention.
Claims (10)
1. the charger that one kind is capable of intelligent recognition battery matching current, which is characterized in that including：
Shell；
Switching Power Supply in the shell, constant-current control circuit, controller are set；
The Switching Power Supply includes：The first input end of Switching Power Supply, the second input terminal of Switching Power Supply and Switching Power Supply it is defeated
Outlet；
The constant-current control circuit includes：The input terminal of constant-current control circuit and the output end of constant-current control circuit；
The controller includes：The input terminal of controller and the output end of controller；
The first input end of the Switching Power Supply is used to connect external power supply；
Second input terminal of the Switching Power Supply is connect with the output end of the constant-current control circuit；
The output end of the Switching Power Supply is used to connect external battery to be charged；
The input terminal of the constant-current control circuit is connect with the output end of the controller；
Battery to be charged outside the input terminal connection of the controller.
2. charger according to claim 1, which is characterized in that further include：
First resistor, second resistance and 3rd resistor in the shell are set；
The first resistor, second resistance and 3rd resistor are connected in the input terminal and the controller of the constant-current circuit in parallel
Output end between.
3. charger according to claim 1, which is characterized in that further include：
Output line, one end of the output line connect the output end of the Switching Power Supply, and the other end is for connecting battery to be charged.
4. charger according to claim 3, which is characterized in that the input terminal of the controller includes first input end,
The charger further includes：
The 4th resistance and the 5th resistance in the shell are set；
One end of 4th resistance connects the first input end of the controller, and the other end connects the output line；
One end of 5th resistance connects the first input end of the controller, other end ground connection.
5. charger according to claim 3, which is characterized in that the input terminal of the controller includes the second input terminal,
The charger further includes：
6th resistance is set in the shell；
6th resistance is arranged on the output line, and is located at the second input terminal and battery to be charged of the Switching Power Supply
Between.
6. charger according to claim 1, which is characterized in that further include：
Charging indicator light, setting on the housing, are connect with the controller.
7. charger according to claim 6, which is characterized in that the charging indicator light includes light emitting diode.
8. charger according to claim 3, which is characterized in that further include：
Plug；
The output line passes through the shell；
The outside of the shell is arranged in the plug；
One end of the output line connects the Switching Power Supply, and the other end connects the plug.
9. charger according to claim 8, which is characterized in that the plug is the dedicated Type B plug of video camera.
10. charger according to claim 1, which is characterized in that the controller is single-chip microcontroller.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820492941.5U CN208174307U (en) | 2018-04-08 | 2018-04-08 | It is capable of the charger of intelligent recognition battery matching current |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820492941.5U CN208174307U (en) | 2018-04-08 | 2018-04-08 | It is capable of the charger of intelligent recognition battery matching current |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111562505A (en) * | 2020-05-29 | 2020-08-21 | Oppo广东移动通信有限公司 | Battery identification method, electronic equipment and storage medium |
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2018
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111562505A (en) * | 2020-05-29 | 2020-08-21 | Oppo广东移动通信有限公司 | Battery identification method, electronic equipment and storage medium |
| CN111562505B (en) * | 2020-05-29 | 2023-05-30 | Oppo广东移动通信有限公司 | Battery identification method, electronic equipment and storage medium |
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