Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.The present invention implementation being generally described and illustrated herein in the accompanying drawings
The component of example can be configured to arrange and design with a variety of.
Therefore, below the detailed description of the embodiments of the invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.It is common based on the embodiment in the present invention, this area
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
It should be noted that:Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.In addition, term " the
One ", " second " etc. is only used for distinguishing description, and it is not intended that instruction or hint relative importance.
In the description of the invention, it is also necessary to explanation, unless otherwise clearly defined and limited, term " connection ",
" coupling " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected;Can be
Mechanically connect or electrically connect;Can be joined directly together, can also be indirectly connected by intermediary, can be two
The connection of element internal.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood in the present invention
In concrete meaning.
Referring to Fig. 1, the embodiments of the invention provide a kind of voltage switching output system 10, the voltage switching output system
10 include:Voltage switching output device 100 and external loading 11.
Voltage switching output device 100 is used to load 11 by coupled external, to judge the adaptation of the external loading 11 electricity
Press as first voltage or second voltage.Wherein, first voltage can be 24V, and second voltage can be 12V.It is outside when judging
During the adaptation first voltage of load 11, then first voltage is exported to the external loading 11, when judgement external loading 11 the second electricity of adaptation
During pressure, then second voltage is exported to the external loading 11.
External loading 11 can be the electric starter motor of automobile.In the present embodiment, external loading 11 is according to actual model
Difference, it can be first voltage or second voltage to be adapted to voltage.When the brownout of the storage battery of automobile, can not start outside negative
When carrying 11, the positive terminal and negative pole end of external loading 11 with voltage switching output device 100 by coupling, to obtain adaptation itself
First voltage or second voltage, and then realize restarting.
Referring to Fig. 2, the embodiments of the invention provide a kind of voltage switching output device 100, voltage switching output dress
Putting 100 includes:Battery pack 110, battery management module 120, main control module 130, the first semiconductor switch tube module 140, second
Semiconductor switch tube module 150 and protection module 160.
Battery pack 110 is used to store electric energy, and exports first voltage to the first semiconductor switch tube module 140 or output the
Two voltages to the second semiconductor switch tube module 150.
Battery management module 120 is used for the first voltage or second voltage that stable cell group 110 exports.
Main control module 130 is used to judge the matching voltage of external loading 11 for first voltage or second voltage, when for first
Voltage, the first semiconductor switch tube module 140 of control turn on, when for the second voltage, controlling second semiconductor switch
Tube module 150 turns on.
First semiconductor switch tube module 140 is used to be turned on according to the control of main control module 130, by the first of acquisition
Voltage output is to external loading 11.
Second semiconductor switch tube module 150 is used to be turned on according to the control of main control module 130, by the second of acquisition
Voltage output is to external loading 11.
Protection module 160 is used to carry out over-pressed, under-voltage, short-circuit and overheat protector to voltage switching output device 100.
Referring to Fig. 3, in the present embodiment, battery pack 110 passes through the first output end and the first semiconductor switch tube module 140
Input coupling, the second output end coupled with the input of the second semiconductor switch tube module 150, and battery pack 110 is born
Negative pole end extremely with external loading 11 couples, to export first voltage to the first semiconductor switch tube module 140 or output the
Two voltages to the second semiconductor switch tube module 150.
Specifically, battery pack 110 includes:First battery 111 and the second battery 112.First battery 111 and the second battery
112 be model identical lithium battery, and the first battery 111 and the second battery 112 export 12V voltage.First battery 111
Negative pole end and the second battery 112 positive terminal coupling form battery pack 110, the negative pole end of the second battery 112 is battery pack
110 negative pole end, and coupled external loads 11 to form loop.The positive terminal of first battery 111 is the first of battery pack 110
Output end, and couple the input of the first semiconductor switch tube module 140.It is understood that the first output end of battery pack 110
The first voltage of output is connected output by the first battery 111 and the second battery 112, and then the first output end of battery pack 110 is defeated
It can be 24V to go out to the first voltage of the input of the first semiconductor switch tube module 140.The negative pole end of first battery 111 and
The positive terminal coupling of second battery 112 forms the coupled end of the battery 112 of the first battery 111 and second, and the coupled end is
Second output end of battery pack 110.It is understood that the second voltage of the second output end output of battery pack 110 is by the second electricity
Pond 112 is exported, and then the second output end of battery pack 110 is exported to the of the input of the second semiconductor switch tube module 150
Two voltages can be 12V.
Battery management module 120 passes through the first output end with battery pack 110 respectively, the second output end of battery pack 110
Coupled with the negative pole end of battery pack 110, it is stable to the output first voltage of battery pack 110 or second voltage to realize.
Specifically, battery management module 120 includes:First battery management unit 121 and the second battery management unit 122.
First battery management unit 121 couples the positive terminal and negative pole end of the first battery 111 respectively, and the second battery management unit 122 is then
The positive terminal and negative pole end of the second battery 112 are coupled respectively.
First battery management unit 121 can be IC chip, the first battery management unit 121 by with the first electricity
The coupling in pond 111, the first battery management unit 121 can gather the first voltage that the first battery 111 is exported.First cell tube
The value that reason unit 121 parses the first voltage then can interpolate that whether first voltage is stable 24V.When for 24V when, first electricity
Pond administrative unit 121 is then not involved in the regulation to the first battery 111.When not being 24V, the first battery management unit 121 is then
The output voltage of first battery 111 is adjusted by the coupling with the first battery 111, so that the output that the first battery 111 is stable
24V first voltage.
Second battery management unit 122 can also be IC chip, and the second battery management unit 122 is by with second
The coupling of battery 112, the second battery management unit 122 can gather the second voltage that the second battery 112 is exported.Second battery
The value that administrative unit 122 parses the second voltage then can interpolate that whether second voltage is stable 12V.When for 12V when, second
Battery management unit 122 is then not involved in the regulation to the second battery 112.When not being 12V, the second battery management unit 122 is then
The output voltage of the second battery 112 is adjusted also by the coupling with the second battery 112, so that the second battery 112 stabilization is defeated
Go out 12V second voltage.
Main control module 130 can be IC chip, and it has signal handling capacity.Wherein, main control module 130 can be with
It is general processor, including central processing unit (Central Processing Unit, abbreviation CPU), network processing unit
(Network Processor, abbreviation NP) etc.;Can also be digital signal processor (DSP), application specific integrated circuit (ASIC),
Ready-made programmable gate array (FPGA) either other PLDs, discrete gate or transistor logic, discrete hard
Part component.General processor can be microprocessor or the processor can also be any conventional processor etc..
The I/O ports of main control module 130 can be respectively coupled to by protection module 160 external loading 11 positive terminal and
Negative pole end, thus the coupled external of voltage switching output device 100 load 11 when, main control module 130 by I/O ports can with it is outer
Section load 11 is communicated, to judge that the matching voltage of the external loading 11 is first voltage, or second voltage.Main control module
130 driving port can respectively with the first semiconductor switch tube module 140 control terminal and the second semiconductor switch tube module
150 control terminal coupling.When main control module 130 judge external loading 11 matching voltage for first voltage when, main control module 130
Control signal is generated to the control terminal of the first semiconductor switch tube module 140 according to pre-set control programs, so that the first semiconductor
Switch tube module 140 turns on.When main control module 130 judge external loading 11 matching voltage for second voltage when, main control module
130 generate control signal to the control terminal of the second semiconductor switch tube module 150 according to pre-set control programs, so that the second half
Conductor switch tube module 150 turns on.Wherein, the control signal that main control module 130 exports can be believed for 2.5V to 5V high level
Number.
In the present embodiment, main control module 130 is respectively coupled to the positive terminal of external loading 11 by protection module 160 and born
After extreme, main control module 130 can also monitor the first semiconductor switch tube module 140, and whether to output first voltage negative to outside
11 are carried, and also monitors whether the second semiconductor switch tube module 150 outputs second voltage to external loading 11.It is specifically, main
Control module 130 judge in preset duration, with by protection module 160 with whether being obtained at the coupling of the positive terminal of external loading 11
Get first voltage or second voltage.Wherein, preset duration is 3 minutes.If getting first voltage in preset duration, lead
Control module 130 judges current external loading 11 also in couple state, and then continues to output control signal to the first semiconductor
Tube module 140 is switched, to control the first semiconductor switch tube module 140 to continue to conducting state, battery pack 110 continues to outer
Section load 11 is powered.If getting second voltage in preset duration, main control module 130 judges current external loading 11 also
In couple state, and then control signal is continued to output to the second semiconductor switch tube module 150, to control the second semiconductor to open
Close tube module 150 and continue to conducting state, battery pack 110 also continues to power to external loading 11.If in preset duration not
First voltage is got, then main control module 130 judges that current external loading 11 is already off, and then stops output control signal
To the first semiconductor switch tube module 140, cut-off state is returned to by conducting with the first semiconductor switch tube module 140 of control,
Battery pack 110 is then stopped power supply.If not getting second voltage in preset duration, main control module 130 judges current outer
Section load 11 is already off, and then stops outputing control signals to the second semiconductor switch tube module 150, is led with control the second half
Body switch tube module 150 returns to cut-off state by conducting, and battery pack 110 is then also stopped power supply.
Refer to Fig. 3 and Fig. 4, the input of the first semiconductor switch tube module 140 and the first output end of battery pack 110
Coupling, the control terminal of the first semiconductor switch tube module 140 couples with main control module 130, and the first semiconductor switch tube module
140 output end is then coupled by protection module 160 with the positive terminal of external loading 11.
In the present embodiment, the first semiconductor switch tube module 140 includes:First drive circuit 141 and the first semiconductor are opened
Close pipe circuit 142.The control terminal of first drive circuit 141 couples with main control module 130, the output end of the first drive circuit 141
Coupled with the control terminal of the first semiconductor switch pipe circuit 142, the input and battery pack of the first semiconductor switch pipe circuit 142
110 the first output end coupling, the output end of the first semiconductor switch pipe circuit 142 then pass through the coupled external of protection module 160
The positive terminal of load 11.
Specifically, the first drive circuit 141 is used to generate level signal according to the control signal of main control module 130, will
Level signal is exported to the first semiconductor switch tube module 140.
In the first drive circuit 141:
First resistor R1 one end coupling 5V voltages, the 5V voltages export second voltage via three ends by the second battery 112
Voltage stabilizing chip decompression obtains.The first resistor R1 other end couples the first photoelectrical coupler OC1 anode tap.First amplifier U1
Input be provided with the connectivity port A1 of coupling main control module 130, the first amplifier U1 output end and the first photoelectrical coupler
OC1 cathode terminal coupling.First photoelectrical coupler OC1 collector and emitter then with the first semiconductor switch pipe circuit
142 couplings.
When connectivity port, A1 gets the control signal of main control module 130, the first amplifier U1 amplifies control signal
Export to the first photoelectrical coupler OC1 cathode terminal, so that the first photoelectrical coupler OC1 is turned on, and then the first photoelectrical coupler
OC1 is produced by conducting and outputs level signals are to the first semiconductor switch tube module 140.
First semiconductor switch pipe circuit 142 be used for the first semiconductor switch pipe circuit 142 according to level signal and by
Conducting state is changed into cut-off, and the first voltage of battery pack 110 is exported to external loading 11.
In the first semiconductor switch pipe circuit 142:
The source electrode of second resistance R2 one end and 3rd resistor R3 one end with the first FET MOS1 couples, and sets
There is the connectivity port A2 of the first output end of coupling battery pack 110.In the second resistance R2 other end and the first drive circuit 141
First photoelectrical coupler OC1 colelctor electrode coupling.First FET MOS1 drain electrode is provided with coupled external load positive terminal
Connectivity port A3.First FET MOS1 grid and the 3rd resistor R3 other end then and the 4th resistance R4 one end coupling
Close.The 4th resistance R4 other end and the first triode Q1 colelctor electrode couple, the first triode Q1 grounded emitter, and first
Emitter stage of the triode Q1 base stage then with the first photoelectrical coupler OC1 in the first drive circuit 141 couples.
When the first 141 outputs level signals of drive circuit, level signal is loaded into the first triode Q1 base stage so that
First triode Q1 saturation conductions.And then first FET MOS1 grid positively biased, the first FET MOS1 changes by ending
It is changed into conducting state.The first voltage got by connectivity port A2 is then exported to protection module 160 by connectivity port A3, with
Exported by protection module 160 to the positive terminal of external loading 11.
Refer to Fig. 3 and Fig. 5, the input of the second semiconductor switch tube module 150 and the second output end of battery pack 110
Coupling, the control terminal of the second semiconductor switch tube module 150 couples with main control module 130, and the second semiconductor switch tube module
150 output end then couples also by protection module 160 with the positive terminal of external loading 11.
In the present embodiment, the second semiconductor switch tube module 150 includes:Second drive circuit 151 and the second semiconductor are opened
Close pipe circuit 152.The control terminal of second drive circuit 151 couples with main control module 130, the output end of the second drive circuit 151
Coupled with the control terminal of the second semiconductor switch pipe circuit 152, the input and battery pack of the second semiconductor switch pipe circuit 152
110 the second output end coupling, the output end of the second semiconductor switch pipe circuit 152 then pass through the coupled external of protection module 160
The positive terminal of load 11.
Specifically, the second drive circuit 151 is used to generate level signal according to the control signal of main control module 130, will
Level signal is exported to the second semiconductor switch tube module 150.
In the second drive circuit 151:
5th resistance R5 one end coupling 5V voltages, the 5V voltages export second voltage via three ends by the second battery 112
Voltage stabilizing chip decompression obtains.The 5th resistance R5 other end couples the second photoelectrical coupler OC2 anode tap.Second amplifier U2
Input be provided with the connectivity port B1 of coupling main control module 130, the second amplifier U2 output end and the second photoelectrical coupler
OC2 cathode terminal coupling.Second photoelectrical coupler OC2 collector and emitter then with the second semiconductor switch pipe circuit
152 couplings.
When connectivity port, B1 gets the control signal of main control module 130, the second amplifier U2 amplifies control signal
Export to the second photoelectrical coupler OC2 cathode terminal, so that the second photoelectrical coupler OC2 is turned on, and then the second photoelectrical coupler
OC2 is produced by conducting and outputs level signals are to the second semiconductor switch tube module 150.
Second semiconductor switch pipe circuit 152 is changed into for the second semiconductor switch pipe circuit 152 according to by cut-off
Conducting state, the second voltage of battery pack 110 is exported to external loading 11.
In the second semiconductor switch pipe circuit 152:
The source electrode of 6th resistance R6 one end and the 7th resistance R7 one end with the second FET MOS2 couples, and sets
There is the connectivity port B2 of the second output end of coupling battery pack 110.In the 6th resistance R6 other end and the second drive circuit 151
Second photoelectrical coupler OC2 colelctor electrode coupling.Second FET MOS2 drain electrode is provided with coupled external load positive terminal
Connectivity port B3.Second FET MOS2 grid and the 7th resistance R7 other end then and the 8th resistance R8 one end coupling
Close.The 8th resistance R8 other end and the second triode Q2 colelctor electrode couple, the second triode Q2 grounded emitter, and second
Emitter stage of the triode Q2 base stage then with the second photoelectrical coupler OC2 in the second drive circuit 151 couples.
When the second 151 outputs level signals of drive circuit, level signal is loaded into the second triode Q2 base stage so that
Second triode Q2 saturation conductions.And then second FET MOS2 grid positively biased, the second FET MOS2 changes by ending
It is changed into conducting state.The second voltage got by connectivity port B2 is then exported to protection module 160 by connectivity port B3, with
Exported by protection module 160 to the positive terminal of external loading 11.
Referring to Fig. 3, protection module 160 is IC chip, and it is coupling in the loop of voltage switching output device 100
In.Specifically, the output end with the first semiconductor switch tube module 140, the second semiconductor are opened respectively for one end of protection module 160
Close the output end of tube module 150, the negative pole end of battery pack 110 and main control module 130 to couple, the other end of protection module 160 is then
Coupled respectively with the positive terminal of external loading 11 and the negative pole end of external loading 11.When protection module 160 monitor it is over-pressed, deficient
When pressure, short circuit or excess temperature, protection module 160 then cuts off the loop for being coupled to external loading 11, and voltage switching is exported with realizing
The protection of each module in device 100.
Referring to Fig. 6, the embodiments of the invention provide a kind of voltage switching output intent, voltage switching output intent application
Main control module in voltage switching output device.Specifically, voltage switching output intent includes:Step S100, step S200,
Step S300 and step S400.
Step S100:Obtain the matching voltage of external loading.
Step S200:Judge the matching voltage for first voltage or second voltage;When for the first voltage, control the
Semiconductor switch tube module conducting, so that battery pack exports the first voltage to the external loading, when for described second
Voltage, control the second semiconductor switch tube module conducting, so that the battery pack exports the second voltage to the outside and born
Carry, wherein, the first voltage is more than the second voltage.
Step S300:Judge in preset duration institute whether is got at the coupling with the positive terminal of the external loading
State first voltage or the second voltage.
Step S400:If getting the first voltage, the first semiconductor switch tube module is controlled to be held on, if
The first voltage is not got, controls the first semiconductor switch tube module cut-off, if getting the second voltage, control
Make the second semiconductor switch tube module to be held on, if not getting the second voltage, control second semiconductor
Switch tube module cut-off.
It is understood that the voltage switching output intent described in the present embodiment see above-mentioned device.For ease of description
It is succinct, do not do excessive tired state herein.
In summary, the embodiments of the invention provide a kind of voltage switching output device and method, voltage switching output dress
Put including:Battery pack, the first semiconductor switch tube module, the second semiconductor switch tube module and main control module.First semiconductor
The input of switch tube module couples with the first output end of battery pack, the input and battery of the second semiconductor switch tube module
The control terminal of the second output end coupling of group, the control terminal of the first semiconductor switch tube module and the second semiconductor switch tube module
Coupled with main control module, the output end of the output end of the first semiconductor switch tube module and the second semiconductor switch tube module is equal
For the positive terminal of coupled external load, the negative pole end of battery pack is used for the negative pole end of coupled external load, and main control module is used for
The positive terminal and negative pole end of coupled external load respectively.
Main control module is first voltage or second voltage by the matching voltage of automatic decision external loading, when judgement matches
When voltage is first voltage, main control module just can control the first semiconductor switch tube module to turn on, so that battery pack exports institute
First voltage is stated to external loading, and when it is second voltage to judge matching voltage, main control module can also control the second half to lead
Body switch tube module conducting, so that battery pack exports the second voltage to external loading.By main control module automatic decision and
Control output, the electric starter motor that voltage switching output device may be directly coupled to automobile are restarted electric starter motor to realize, made
The rescue time for obtaining automobile further shortens, and adds the rescue efficiency of automobile.
For those skilled in the art, the present invention can have various modifications and variations.All spirit in the present invention
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.