CN208190272U - The charging circuit and charging adapter of intelligent battery - Google Patents
The charging circuit and charging adapter of intelligent battery Download PDFInfo
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- CN208190272U CN208190272U CN201820113691.XU CN201820113691U CN208190272U CN 208190272 U CN208190272 U CN 208190272U CN 201820113691 U CN201820113691 U CN 201820113691U CN 208190272 U CN208190272 U CN 208190272U
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Abstract
This application discloses a kind of charging circuit of intelligent battery and charging adapters.The charging circuit of intelligent battery, comprising: single-chip microcontroller；The voltage regulator circuit being connect with the single-chip microcontroller；When supply voltage is not less than rated output voltage, the single-chip microcontroller controls the voltage regulator circuit and forms reduction voltage loop；When supply voltage is not higher than rated output voltage, the single-chip microcontroller controls the voltage of voltage regulation and forms boosting circuit, so as to use onboard charger to charge the intelligent battery that unmanned plane uses, it is possible to reduce the dependence to fixed charging place.
Description
Technical field
This application involves the charging circuit of intelligent battery and charging adapters.
Background technique
Aircraft occurs usually in the form of unmanned plane, smaller for taking photo by plane, providing virtual reality visual angle or shipping mass
Article.
Unmanned plane is usually using battery as the energy.Since lithium battery energy density is relative to traditional lead-acid battery energy
Density is high, and therefore, unmanned plane often uses lithium battery as the energy.
During realizing the prior art, at least there are the following problems in the prior art for discovery:
Unmanned plane usually requires to charge in fixed-site when in use, for example, charging station.
Accordingly, it is desirable to provide a kind of unmanned plane that can reduce is to the scheme of fixed charging Place Attachment.
Utility model content
Based on this, aiming at the problem that unmanned plane excessively relies on fixed charging place, the application provides a kind of intelligent battery
Charging circuit and the charging adapter for using the circuit.
A kind of charging circuit of intelligent battery, comprising: single-chip microcontroller, the voltage regulator circuit being connect with the single-chip microcontroller.Work as power supply
When voltage is not less than rated output voltage, the single-chip microcontroller controls the voltage regulator circuit and forms reduction voltage loop；When supply voltage not
When higher than rated output voltage, the single-chip microcontroller controls the voltage regulator circuit and forms boosting circuit.
Intelligent battery charging circuit provided by the present application can export stable charging voltage, and onboard charger can be used
It charges to the intelligent battery that unmanned plane uses, to reduce the dependence to fixed charging place.
The reduction voltage loop specifically includes in one of the embodiments: power input；Connect with the power input
It connects, and is sequentially connected in series the charging output end formed after the first metal-oxide-semiconductor, the first inductance, first diode；One end access described first
Between metal-oxide-semiconductor and the first inductance, the second metal-oxide-semiconductor of other end ground connection；One end is accessed between first diode and charging output end,
The first capacitor of other end ground connection；The first metal-oxide-semiconductor controlling brancher being connected between the grid and source electrode of first metal-oxide-semiconductor；
The second metal-oxide-semiconductor controlling brancher being connected between the grid and source electrode of second metal-oxide-semiconductor；The first metal-oxide-semiconductor controlling brancher
It is electrically connected with the second metal-oxide-semiconductor branch and the single-chip microcontroller.
The first metal-oxide-semiconductor controlling brancher specifically includes in one of the embodiments: connect with the single-chip microcontroller
One resistance；The opposite end that the first resistor connects one end of the single-chip microcontroller connects the grid of first metal-oxide-semiconductor；Described
The opposite end of one resistance also concatenates the source electrode that first metal-oxide-semiconductor is connected after second resistance.
The second metal-oxide-semiconductor controlling brancher specifically includes in one of the embodiments: connect with the single-chip microcontroller
Three resistance；The opposite end that the 3rd resistor connects one end of the single-chip microcontroller connects the grid of second metal-oxide-semiconductor；Described
The opposite end of three resistance also concatenates the source electrode that second metal-oxide-semiconductor is connected after the 4th resistance.
The boosting circuit specifically includes in one of the embodiments: power input；Connect with the power input
It connects, and is sequentially connected in series the charging output end formed after the first metal-oxide-semiconductor, the first inductance, first diode；One end access described first
Between diode and the charging output end, the first capacitor of other end ground connection；First inductance and described the are accessed in one end
Between one diode, the third metal-oxide-semiconductor of other end ground connection；The third being connected between the grid and source electrode of the third metal-oxide-semiconductor
Metal-oxide-semiconductor controlling brancher.
The third metal-oxide-semiconductor controlling brancher specifically includes in one of the embodiments: the source electrode of the third metal-oxide-semiconductor
Ground connection.It is connected to the first triode of the power input, it is defeated that the collector of first triode is connected to the power supply
Enter end, the input terminal of the power supply, first triode are connected to after base stage the 5th resistance of concatenation of first triode
Emitter concatenate the 6th resistance after be connected to the grid of the third metal-oxide-semiconductor.Second triode, the hair of second triode
Emitter-base bandgap grading is connected to the emitter of first triode, and the base stage of second triode is connected to the base of first triode
Pole, the grounded collector of second triode.Third transistor, the collector connection the described 2nd 3 of the third transistor
The base stage of pole pipe, the emitter ground connection of the third transistor, the base stage of the third transistor connect after concatenating the 7th resistance
In single-chip microcontroller, the base stage of the third transistor is connected to second source input terminal after also concatenating the 8th resistance.
The application also provides a kind of charging adapter of intelligent battery, uses the intelligent battery charging circuit.
Intelligent battery charging adapter provided by the present application can connect onboard charger, realize UAV Intelligent battery
Mobile charging, to reduce the dependence that intelligent battery charges to fixed-site.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the circuit diagram of intelligent battery charging circuit.
Fig. 2 is the circuit diagram of third metal-oxide-semiconductor controlling brancher.
Fig. 3 is the circuit diagram of reduction voltage loop in intelligent battery charging circuit.
Fig. 4 is the equivalent circuit diagram in boosting circuit in intelligent battery charging circuit.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with the application specific embodiment and
Technical scheme is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the application one
Section Example, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall in the protection scope of this application.
Referring to Figure 1, the embodiment of the present application provides a kind of charging circuit of intelligent battery, can export stable charging electricity
Pressure reduces so as to use onboard charger to charge the intelligent battery that unmanned plane uses to fixed place of charging
Dependence.
A kind of charging circuit of intelligent battery, comprising: single-chip microcontroller, the voltage regulator circuit being connect with single-chip microcontroller.Work as supply voltage
When not less than rated output voltage, single-chip microcontroller controls the voltage regulator circuit and forms reduction voltage loop；When supply voltage is not higher than specified
When output voltage, single-chip microcontroller controls the voltage regulator circuit and forms boosting circuit.
In one embodiment, reduction voltage loop includes:
Power input；
The the first metal-oxide-semiconductor M1 and its controlling brancher being connect with power input；
Second metal-oxide-semiconductor M2 and its controlling brancher, the source electrode of the first metal-oxide-semiconductor M1 of the second metal-oxide-semiconductor M2 drain electrode connection, the 2nd MOS
Pipe M2 source electrode ground connection；
The the first inductance L being sequentially connected in series and first diode D being connect with the first metal-oxide-semiconductor M1 source electrode；
One end connects first diode D, the first capacitor C of other end ground connection.
Specifically, the first metal-oxide-semiconductor M1 controlling brancher specifically includes: first resistor R1 and second resistance resistance R2.First electricity
It hinders the one end R1 and connects single-chip microcontroller, the other end connects the grid of the first metal-oxide-semiconductor M1.Second resistance R2 is serially connected in first resistor R1 and
Between the drain electrode of two metal-oxide-semiconductor M2.
Specifically, the second metal-oxide-semiconductor M2 controlling brancher specifically includes: 3rd resistor R3 and the 4th resistance R4.Third electricity
It hinders the one end R1 and connects single-chip microcontroller, the other end connects the grid of the second metal-oxide-semiconductor M2.4th resistance R4 is serially connected in 3rd resistor R3 and
Between the source electrode of two metal-oxide-semiconductor M2.
Specifically, the first metal-oxide-semiconductor controlling brancher and the second metal-oxide-semiconductor branch and single-chip microcontroller are electrically connected.First diode D and
A branch is drawn between first capacitor C forms charging output end.
Further, the first metal-oxide-semiconductor M1 and the second metal-oxide-semiconductor M2 is NMOS transistor.
In one embodiment, boosting circuit includes:
Power input；
The first metal-oxide-semiconductor M1 being connect with power input；
The the first inductance L being sequentially connected in series and first diode D being connect with the first metal-oxide-semiconductor M1 source electrode；
Third metal-oxide-semiconductor M3 and its controlling brancher, third metal-oxide-semiconductor M3 grid access the first inductance L and first diode D it
Between, source electrode ground connection；
One end connects the first capacitor C of first diode D and other end ground connection.
Specifically, the controlling brancher of third metal-oxide-semiconductor is coupled by B point, as shown in Fig. 2, specifically including:
Collector is connected to the first triode T1 of power input；
5th resistance R5, one end are concatenated with the first triode T1 base stage, and the other end accesses power input；
6th resistance R6, one end are concatenated with the first triode T1 emitter, and the other end connects third metal-oxide-semiconductor M3 grid；
Second triode T2, emitter are connected to the first triode T1 emitter, and base stage is connected to the first triode T1's
Base stage, grounded collector；
Third transistor T3, collector are connected to the second triode T2, emitter ground connection, after base stage concatenates the 7th resistance R7
It is connected to single-chip microcontroller；
8th resistance R8, the base stage of third transistor T3 are connected to second source input terminal after also concatenating the 8th resistance R8；
A branch is drawn between first diode D and first capacitor C forms charging output end.
Further, the first metal-oxide-semiconductor M1 and third metal-oxide-semiconductor M3 is NMOS transistor.First triode T1 and the three or three
Pole pipe T3 is NPN pipe, and the second triode T2 is PNP pipe.
When supply voltage is not less than rated output voltage, single-chip microcontroller controls voltage regulator circuit and forms reduction voltage loop, such as Fig. 3 institute
Show.The work of reduction voltage circuit includes two processes, respectively process 1 and process 2.
Process 1: single-chip microcontroller the first metal-oxide-semiconductor M1 grid input high level of control, the second metal-oxide-semiconductor M2 grid input low level,
Make the first metal-oxide-semiconductor M1 conducting, the second metal-oxide-semiconductor M2 cut-off.At this point, the A between the first metal-oxide-semiconductor M1 source electrode and the drain electrode of the second metal-oxide-semiconductor
Point output high level, the first inductance L and first capacitor C charge under power supply effect.The voltage of charging output end is acted in inductance
Under walk unhurriedly since 0 rising.
Process 2: when output voltage is after reaching rated output voltage after a period of time, single-chip microcontroller controls the first metal-oxide-semiconductor M1
Grid input low level, the second metal-oxide-semiconductor M2 grid input high level end the first metal-oxide-semiconductor M1, the second metal-oxide-semiconductor M2 conducting.This
When, the A point between the first metal-oxide-semiconductor M1 source electrode and the second metal-oxide-semiconductor M2 drain electrode exports low level, leads to the electricity of the first inductance L and first
Hold C to circuit discharging.The voltage of output end of charging is walked unhurriedly decline under inductance effect since rated output voltage, is reduced to certain
Single-chip microcontroller secondary control the first metal-oxide-semiconductor M1 conducting, the second metal-oxide-semiconductor M2 cut-off again, repetitive process 1 when one particular voltage level.
In the continuous circulation of process 1 and process 2, output end voltage is stablized near rated output voltage.Single-chip microcontroller is logical
The make-and-break time for crossing control M1 and M2 pipe controls the lifting time of output end voltage, determines the range and essence of output voltage variation
Degree.
When supply voltage is not higher than rated output voltage, the single-chip microcontroller controls the voltage regulator circuit formation and boosts back
Road, as shown in Figure 4.The work of booster circuit includes two processes, respectively process 3 and process 4.
Process 3: single-chip microcontroller controls the first metal-oxide-semiconductor M1 grid input high level, so that the first metal-oxide-semiconductor M1 is connected.Meanwhile the
Three metal-oxide-semiconductor M3 are connected under the action of its controlling brancher, and the first inductance L energy storage under power supply effect, energy thereon finally reaches
It arrivesWherein, ImaxMaximum current at the end of for third metal-oxide-semiconductor M3 conducting on the first inductance L, L are the first inductance L's
Inductance value.
Process 4: single-chip microcontroller controls the first metal-oxide-semiconductor M1 grid input high level, so that the first metal-oxide-semiconductor M1 is connected.Meanwhile third
Metal-oxide-semiconductor M3 ends under the action of its controlling brancher, the voltage reversal at the first both ends inductance L.Supply voltage and the opposite direction voltage
The sum of, output end load supplying is given by first diode D and first capacitor C, output voltage values are
Wherein, tonFor the turn-on time of third metal-oxide-semiconductor M3, toffFor the deadline of third metal-oxide-semiconductor M3, UINFor power input voltage.
Boosting circuit can be by the make-and-break time adjustment output voltage of change third metal-oxide-semiconductor M3.
More specifically, in the present embodiment: the input voltage of power input is Vcc.The grid voltage of metal-oxide-semiconductor is Vg；
Source voltage is Vs；Drain voltage is Vd.The gate source voltage difference of metal-oxide-semiconductor is Vgs；Drain-source voltage difference is Vds.The threshold value of transistor
Voltage is Vth.When NMOS tube cut-off, the relationship of gate source voltage difference and threshold voltage are as follows: Vgs < Vth；When NMOS conducting,
The relationship of its drain-source voltage difference and gate source voltage difference and threshold voltage are as follows: Vds > Vgs-Vth.
When supply voltage is not less than rated output voltage, single-chip microcontroller controls voltage regulator circuit and forms reduction voltage loop.Decompression electricity
The work on road includes process 1 and process 2.
Process 1: single-chip microcontroller applies voltages to the grid of the first metal-oxide-semiconductor M1 by pin1 input terminal, keeps its drain-source voltage poor
Meet Vds1 > Vgs1-Vth, the first metal-oxide-semiconductor M1 conducting；Single-chip microcontroller applies voltages to the second metal-oxide-semiconductor M2 grid by pin2 input terminal
Pole makes its gate source voltage meet Vgs2 < Vth, the second metal-oxide-semiconductor M2 cut-off.At this point, the first metal-oxide-semiconductor M1 source electrode and the leakage of the second metal-oxide-semiconductor
A point between pole exports high level, the first inductance L and first capacitor C and charges under power supply effect.The voltage of charging output end exists
It walks unhurriedly since 0 rising under inductance effect.
Process 2: when output voltage is after reaching rated output voltage after a period of time, single-chip microcontroller will by pin1 input terminal
Voltage is added in the grid of the first metal-oxide-semiconductor M1, controls its gate source voltage and meets Vgs1 < Vth, the first metal-oxide-semiconductor M1 cut-off；Single-chip microcontroller is logical
The grid that voltage is added in the second metal-oxide-semiconductor M2 by pin2 input terminal is crossed, its drain-source voltage difference is controlled and meets Vds2 > Vgs2-Vth, the
Two metal-oxide-semiconductor M2 conducting.At this point, the A point between the first metal-oxide-semiconductor M1 source electrode and the second metal-oxide-semiconductor M2 drain electrode exports low level, lead to the
One inductance L and first capacitor C are to circuit discharging.The voltage of charging output end delays since rated output voltage under inductance effect
Step decline, single-chip microcontroller secondary control the first metal-oxide-semiconductor M1 conducting, the second metal-oxide-semiconductor M2 cut-off again, weight when being reduced to a certain particular voltage level
Multiple process 1.
In the continuous circulation of process 1 and process 2, output end voltage is stablized near rated output voltage.Single-chip microcontroller is logical
The make-and-break time for crossing control M1 and M2 pipe controls the lifting time of output end voltage, determines the range and essence of output voltage variation
Degree.
When supply voltage is not higher than rated output voltage, the single-chip microcontroller controls the voltage regulator circuit formation and boosts back
Road.The work of booster circuit includes process 3 and process 4.
Process 3: single-chip microcontroller applies voltages to the grid of the first metal-oxide-semiconductor M1 by pin1 input terminal, keeps its drain-source voltage poor
Meet Vds1 > Vgs1-Vth, the first metal-oxide-semiconductor M1 conducting.Meanwhile third metal-oxide-semiconductor M3 meets leakage under the action of its controlling brancher
Source voltage difference Vds3 > Vgs3-Vth, the conducting of third metal-oxide-semiconductor.First inductance L energy storage under power supply effect, energy thereon are final
ReachWherein, ImaxMaximum current at the end of for third metal-oxide-semiconductor M3 conducting on the first inductance L, L are the first inductance L
Inductance value.
Process 4: single-chip microcontroller applies voltages to the grid of the first metal-oxide-semiconductor M1 by pin1 input terminal, keeps its drain-source voltage poor
Meet Vds1 > Vgs1-Vth, the first metal-oxide-semiconductor M1 conducting.Meanwhile third metal-oxide-semiconductor M3 meets grid under the action of its controlling brancher
Source voltage Vgs3 < Vth cut-off.The voltage reversal at the first both ends inductance L.The sum of supply voltage and the opposite direction voltage pass through
One diode D and first capacitor C give output end load supplying, and output voltage values areWherein, tonIt is
The turn-on time of three metal-oxide-semiconductor M3, toffFor the deadline of third metal-oxide-semiconductor M3, UINFor power input voltage.
By process 3 and process 4, the output end voltage in circuit of boosting rises, and the specific value of output end voltage can lead to
The make-and-break time for crossing change third metal-oxide-semiconductor M3 is adjusted.
In conclusion intelligent battery charging circuit can export stable charging voltage, onboard charger pair can be used
The intelligent battery that unmanned plane uses charges, to reduce the dependence to fixed charging place.
The application also provides a kind of the application and also provides a kind of charging adapter of intelligent battery, uses the intelligence electricity
Pond charging circuit.
Intelligent battery charging adapter provided by the present application can connect onboard charger, realize UAV Intelligent battery
Mobile charging, to reduce the dependence that intelligent battery charges to fixed-site.
The above description is only an example of the present application, is not intended to limit this application.For those skilled in the art
For, various changes and changes are possible in this application.All any modifications made within the spirit and principles of the present application are equal
Replacement, improvement etc., should be included within the scope of the claims of this application.
Claims (7)
1. a kind of charging circuit of intelligent battery characterized by comprising
Single-chip microcontroller；
The voltage regulator circuit being connect with the single-chip microcontroller；
When supply voltage is not less than rated output voltage, the single-chip microcontroller controls the voltage regulator circuit and forms reduction voltage loop；
When supply voltage is not higher than rated output voltage, the single-chip microcontroller controls the voltage regulator circuit and forms boosting circuit.
2. charging circuit as described in claim 1, which is characterized in that the reduction voltage loop specifically includes:
Power input；
It is connect with the power input, and is sequentially connected in series the charging formed after the first metal-oxide-semiconductor, the first inductance, first diode
Output end；
One end is accessed between first metal-oxide-semiconductor and the first inductance, the second metal-oxide-semiconductor of other end ground connection；
One end is accessed between first diode and charging output end, the first capacitor of other end ground connection；
The first metal-oxide-semiconductor controlling brancher being connected between the grid and source electrode of first metal-oxide-semiconductor；
The second metal-oxide-semiconductor controlling brancher being connected between the grid and source electrode of second metal-oxide-semiconductor；
The first metal-oxide-semiconductor controlling brancher and the second metal-oxide-semiconductor branch and the single-chip microcontroller are electrically connected.
3. charging circuit as claimed in claim 2, which is characterized in that the first metal-oxide-semiconductor controlling brancher specifically includes:
The first resistor being connect with the single-chip microcontroller；
The opposite end that the first resistor connects one end of the single-chip microcontroller connects the grid of first metal-oxide-semiconductor；
The opposite end of the first resistor also concatenates the source electrode that first metal-oxide-semiconductor is connected after second resistance.
4. charging circuit as claimed in claim 2, which is characterized in that the second metal-oxide-semiconductor controlling brancher specifically includes:
The 3rd resistor being connect with the single-chip microcontroller；
The opposite end that the 3rd resistor connects one end of the single-chip microcontroller connects the grid of second metal-oxide-semiconductor；
The opposite end of the 3rd resistor also concatenates the source electrode that second metal-oxide-semiconductor is connected after the 4th resistance.
5. charging circuit as described in claim 1, which is characterized in that the boosting circuit specifically includes:
Power input；
It is connect with the power input, and is sequentially connected in series the charging formed after the first metal-oxide-semiconductor, the first inductance, first diode
Output end；
One end is accessed between the first diode and the charging output end, the first capacitor of other end ground connection；
One end is accessed between first inductance and the first diode, the third metal-oxide-semiconductor of other end ground connection；
The third metal-oxide-semiconductor controlling brancher being connected between the grid and source electrode of the third metal-oxide-semiconductor.
6. charging circuit as claimed in claim 5, which is characterized in that the third metal-oxide-semiconductor controlling brancher specifically includes:
The source electrode of the third metal-oxide-semiconductor is grounded；
It is connected to the first triode of the power input, the collector of first triode is connected to the power input
It holds, the input terminal of the power supply is connected to after base stage the 5th resistance of concatenation of first triode, first triode
The grid of the third metal-oxide-semiconductor is connected to after emitter the 6th resistance of concatenation；
Second triode, the emitter of second triode are connected to the emitter of first triode, and the described 2nd 3
The base stage of pole pipe is connected to the base stage of first triode, the grounded collector of second triode；
Third transistor, the collector of the third transistor connect the base stage of second triode, the third transistor
Emitter ground connection, the base stage of the third transistor is connected to single-chip microcontroller after concatenating the 7th resistance, the third transistor
Base stage is connected to second source input terminal after also concatenating the 8th resistance.
7. a kind of charging adapter of intelligent battery, which is characterized in that of any of claims 1-6 filled using described
Circuit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721051593 | 2017-08-22 | ||
| CN201721051593X | 2017-08-22 |
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| Publication Number | Publication Date |
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| CN208190272U true CN208190272U (en) | 2018-12-04 |
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