CN105150963B - A kind of automobile power system of stabilization - Google Patents
A kind of automobile power system of stabilization Download PDFInfo
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- CN105150963B CN105150963B CN201510473074.1A CN201510473074A CN105150963B CN 105150963 B CN105150963 B CN 105150963B CN 201510473074 A CN201510473074 A CN 201510473074A CN 105150963 B CN105150963 B CN 105150963B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
Abstract
The invention discloses a kind of automobile power system of stabilization, includes multiple batteries, CPU, charge management module, electric discharge management module and charging inlet；Wherein, charge management circuit is connected with charging inlet, for being charged to battery；It is connected with cpu signal, the size of current signal of charging is passed into CPU, and receive CPU control signal, equalizaing charge is carried out to the multiple battery；Discharging management circuit is connected with cpu signal；Its input is connected with the multiple battery, and output end is connected with transforming circuit, is externally exported by transforming circuit.The present invention is easy to automobile storage battery charging operations, has a safety feature and stability is high.
Description
Technical field
The present invention relates to power technique fields, specifically, are related to a kind of automobile power system of stabilization.
Background technology
With social development, automobile increasingly becomes instrument essential in people's daily life, but due to storage battery
The reasons such as power shortage, cold weather cause the phenomenon that automobile can not normally start, and also annoying increasing personnel of driving.City
Vehicle can be rescued with on-call maintenance company, but need to pay the time cost that waits for a long time；And travel enthusiasts and remote
The people in area, such accident is run into rural area in the wild and is then felt simply helpless.Car emergency startup power supply is exactly to solve vapour
Car can not normally start and occur.At present, the technical scheme of some existing car emergency startup power supplies, typically all by taking
Electric wire is overlapped on the both positive and negative polarity of automobile storage battery, emergency starting is carried out to automobile, without any circuit protection system during its work
System directly initiates automobile, and discharge current so as to cause automobile heavy-current discharge, has potential safety hazard, and this in 200A to 570A
Kind take electrically complex, for many drivers, there is operation difficulty.
Also there are some car emergency startup power supply technical schemes, start automobile by way of to automobile storage battery supplement electricity,
But it cannot be guaranteed the stable output of electric current and voltage during its work, start automobile so as to which enough electricity can not be provided.
The content of the invention
The invention provides a kind of automobile power system of stabilization, is started with solving car emergency present in prior art
Power technology scheme complex operation, security performance be low and the problem of job insecurity, there is provided a kind of automobile power source of working stability
System.
A kind of automobile power system of stabilization, including：
Multiple batteries；
CPU；
Charging inlet；
Charge management circuit, it is connected with charging inlet, for being charged to battery；It is connected with cpu signal, by charging
Size of current signal passes to CPU, and receives CPU control signal, and equalizaing charge is carried out to the multiple battery；
Discharging management circuit, it is connected with cpu signal；Its input is connected with the multiple battery, and output end is connected with
Transforming circuit, externally exported by transforming circuit.
The technical program equalizaing charge, the electric discharge that can be stablized to battery, is kept away compared with existing charging system
It is different due to individual to exempt from the battery of serial or parallel connection, in charge or discharge, occurs that voltage is different, and battery is with storing
Discharge and recharge is carried out between battery, so as to cause battery job insecurity, externally exports unstable situation.The technical program is not to
With battery carry out from when charging, electric discharge, when being first full of or over-discharge situation occurs in some accumulator body, Charge Management electricity
Road, discharging management circuit will carry out short circuit or close to individual, stop to its charge or discharge.
Further, the charge management circuit includes charging circuit and charging balanced circuit, the input of charging circuit
Electrically connected with charging inlet, and the control terminal of charging circuit is connected with cpu signal, output end and the charge balancing electricity of charging circuit
Road electrically connects, and the charging balanced circuit includes the equalizing circuit being connected in parallel with battery, when the voltage of battery is not up to
During predetermined value, equalizing circuit is in open circuit；When the voltage of battery reaches predetermined value, equalizing circuit is short-circuit by battery.
Here charging circuit can be in general charging circuit, permanent to electric power incoming line by detecting the magnitude of current of power supply
Stream or constant-voltage charge.Equalizing circuit to individual battery be monitored, when the predetermined value that some accumulator body arrives first (such as
4.2V), equalizing circuit becomes path by open circuit, and battery is short-circuit.So as to avoid this accumulator body to other batteries
The situation of charging occurs.
Further, the equalizing circuit includes：PNP triode, TL431 and bleeder circuit；Bleeder circuit and battery
Parallel connection, bleeder circuit are provided with the first connection end, middle connection end and second connection end, the first connection end of bleeder circuit and PNP
The emitter stage connection of triode, the emitter stage of PNP triode are connected by the base stage of bias resistance and PNP triode, the poles of PNP tri-
The base stage of pipe and TL431 output end connect, and TL431 reference edge and the middle connection end of bleeder circuit connect, and TL431's is defeated
Enter end to be connected with the second connection end of bleeder circuit, the colelctor electrode of PNP triode pass through output resistance and bleeder circuit second
Connection end connects.
Bleeder circuit provides a reference voltage for TL431, when the voltage of battery reaches predetermined value, TL431 ginseng
Examine terminal voltage and reach 2.5V, TL431 forms path, and TL431 forms bleeder circuit, the base stage electricity of PNP triode with bias resistance
Pressure reaches lowest starting voltage, and colelctor electrode and the emitter stage of PNP triode form path, and PNP triode here is equivalent to one
Individual switching tube, metal-oxide-semiconductor can be used to substitute.
Further, charging circuit includes current detection circuit and adjustment circuit, and current detection circuit includes triode Q1,
Triode Q1 base stage is connected by the input of resistance R4 and charging circuit, and triode Q1 base stage is grounded by resistance R3,
Triode Q1 grounded emitter, triode Q1 colelctor electrode is to CPU transmission level signals；Adjustment circuit include triode Q2,
Triode Q3, triode Q4 and FET Q5；Triode Q2 base stage receives CPU control signal, three poles by resistance R5
Pipe Q2 base stage is grounded by resistance R6, triode Q2 grounded emitter, and triode Q2 colelctor electrode passes through resistance R7 and three
The Q3 of pole pipe base stage connection, triode Q3 base stage are connected by resistance R8 and the input of adjustment circuit, triode Q4's
Base stage is connected with triode Q3 base stage, triode Q3 grounded collector, triode Q3 emitter stage and triode Q4 hair
Emitter-base bandgap grading connects, and the input of triode Q4 colelctor electrode and adjustment circuit connects, triode Q4 emitter stage by resistance R9 with
The input connection of adjustment circuit, triode Q4 emitter stage are connected by resistance R10 with FET Q5 G poles, field-effect
Pipe Q5 S poles and the input of adjustment circuit connect, and FET Q5 D poles and the output end of adjustment circuit connect.
Resistance R5, R6 form bleeder circuit, base stage output voltages of the control CPU to triode Q2；Triode Q2 current collection
Pole output voltage is triode Q4, Q3 base voltage, wherein, triode Q3 is positive-negative-positive, and triode Q2, triode Q4 are NPN
Type；Q3, Q4 co- controlling FET Q5 G pole tensions, and then control the voltage or electric current of output.
Further, charging circuit also includes filter circuit, and adjustment circuit is connected with filter circuit, and filter circuit is externally defeated
Go out.
Wherein, the battery is Li-ion batteries piles or ultracapacitor group, operating voltage range be 9.0V~
12.6V, capacity are 3Ah~7Ah.
The charging inlet includes mains electricity input end mouth and automobile power source input port.By the setting, two can be used
The power source charges of the kind method automobile power system stable to this, one kind are to connect alternating current 220V civil power by private adapter to fill
Electricity, it is another then be to be charged using automobile power source input port (cigarette lighter outlet) by an electric connection line.
Further, the access voltage of the mains electricity input end mouth and automobile power source input port is not less than 12.6V, fills
Power mode is constant current-constant voltage mode.
The electric discharge output port includes 15V DC output ports and 5V USB output ports.By the setting, can make
Of the invention there must be a variety of electricity output functions, 15V DC output ports connect the cigarette lighter outlet of automobile to vapour by electric connection line
Automobile battery charges, charging of the 5V USB output ports suitable for all kinds of 5V moving multimedia equipment.
Further, the transforming circuit includes booster circuit and reduction voltage circuit.
Further, the electric discharge management module is connected by booster circuit with 15V DC output ports, by being depressured electricity
Road is connected with 5V USB output ports.The setting of booster circuit and reduction voltage circuit causes electric discharge output port to be banished with constant pressure and constant
Electricity, so as to ensure that the stability of automobile power system work.
The cigarette lighter outlet of the 15V DC output ports connection automobile power source, output current scope is 3A~15A.
Preferably, the 15V DC output ports output current is 7A.
The CPU is also associated with a button.The button be responsible for whole power circuit switch and output voltage switching
Function.
Further, in addition to protection circuit.Protection circuit is used to protect the excessively stream of battery, overvoltage, over.
Protection circuit includes protection chip, and protection chip model is S8254, and protection circuit includes detection circuit, detection electricity
The input on road is connected with the positive pole of each battery, detects the output end of circuit with protecting the sensing end signal of chip to be connected,
The multiple battery is connected in series to form batteries；Protection circuit also include the metal-oxide-semiconductor Q17 that is connected in series with battery and
Metal-oxide-semiconductor Q16；Metal-oxide-semiconductor Q16 S poles and the signal end of protection circuit connect, and metal-oxide-semiconductor Q16 D poles connect with metal-oxide-semiconductor Q17 D poles
Connect, the positive pole of metal-oxide-semiconductor Q17 S poles and batteries connects, protect the DOP control terminals of chip, COP control terminals respectively with metal-oxide-semiconductor
Q17 G poles, metal-oxide-semiconductor Q17 G poles connection.
Detection circuit includes detection resistance, and protection chip is connected by detection resistance with the positive pole of each battery.
Further, discharging management circuit includes the electric discharge managing chip being engaged with battery, and electric discharge management is chip-shaped
Number it is S-8209A；The vdd terminal mouth of electric discharge managing chip is connected by resistance with the positive pole of corresponding battery, and discharge managing chip
The negative pole of VSS ports and corresponding battery connect；Also include the field-effect transistor being engaged with battery, field effect transistor
The G poles of pipe are connected with amplifying the CB ports of managing chip, and the D poles of field-effect transistor connect with the negative pole of corresponding battery；
The S poles of effect transistor are connected by resistance with the positive pole of corresponding battery.
The managing chip that discharges detects the voltage of battery by vdd terminal mouth, when in over-discharge state, the output of CB ports
High level, FET is short-circuit by battery, avoids overdischarge.
Yet further, it is corresponding with preceding battery to put along discharge current direction in two neighboring electric discharge managing chip
Big managing chip is preceding electric discharge managing chip, and electric discharge managing chip corresponding with rear battery discharges managing chip after being, preceding storage
The negative pole of battery is connected with the positive pole of rear battery；In Fig. 7, CELL1 is preceding battery, and CELL2 is rear battery；After discharge
DO ports, the CO ports of managing chip are connected by resistance with CTLD ports, the CTLC ports of preceding electric discharge managing chip respectively.
Forward and backward electric discharge management chip signal connection, for adjusting the magnifying state of each battery.
The present invention advantageous effects be：Being connected by an electric connection line with automobile cigarette lighter socket can be to automobile
Storage battery charges, easy to operate；Pass through over module, additives for overcharge protection module, balanced discharge circuit and equalizaing charge electricity
The setting on road can make battery and automobile storage battery from the harm of overcurrent and overvoltage, while it also avoid the every of battery
The phenomenon that individual cell or supercapacitive cell overcharge with over-discharge, improve the security of whole charging process.
In addition, the output end of the present invention is additionally provided with booster circuit and reduction voltage circuit, it is ensured that constant pressure and flow discharges, and improves automobile power source
The stability of system work.
Brief description of the drawings
Fig. 1 is the schematic diagram of the stable automobile power system of embodiment.
Fig. 2 is the charging circuit of embodiment.
Fig. 3 is the equalizing circuit of embodiment.
Fig. 4 is the protection circuit of embodiment.
Fig. 5 is the booster circuit of embodiment.
Fig. 6 is the reduction voltage circuit of embodiment.
Fig. 7 is the discharging management circuit of embodiment.
Reference：
1 --- current detection circuit 2 --- adjustment circuit 3 --- filter circuit.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is used only for explaining the present invention, no
It is understood that as the restriction to the specific protection domain of the present invention.
As shown in figure 1, the embodiments of the invention provide a kind of automobile power system of stabilization, including CPU, Charge Management electricity
Road, battery, discharging management circuit and transforming circuit.
Charging current in whole circuit system, discharge current, charging voltage, discharge voltage in CPU management and control.Specific real
Shi Shi, battery use lithium battery group.Its concrete operating principle is to preserve the discharge and recharge for making lithium battery group normal work in CPU
Threshold value, and gather voltage, current value in lithium battery group charge and discharge process, once the signal collected preserves more than in CPU
Threshold value, instruction will be sent immediately, cut-out electric current is to protect whole circuit system.
Wherein, the charge management circuit includes charging circuit (referring to Fig. 2) and charging balanced circuit (referring to Fig. 3), fills
The input of circuit is connected with charging inlet electricity J1, and the control terminal of charging circuit is connected with cpu signal, charging circuit it is defeated
Go out end to electrically connect with charging balanced circuit, the equalizing circuit that the charging balanced circuit includes being connected in parallel with battery is (see Fig. 3
Dotted portion), when the voltage of battery is not up to predetermined value, equalizing circuit is in open circuit；When the voltage of battery reaches pre-
During definite value, equalizing circuit is short-circuit by battery.
Here charging circuit can be in general charging circuit, permanent to electric power incoming line by detecting the magnitude of current of power supply
Stream or constant-voltage charge.Equalizing circuit to individual battery be monitored, when the predetermined value that some accumulator body arrives first (such as
4.2V), equalizing circuit becomes path by open circuit, and battery is short-circuit.So as to avoid this accumulator body to other batteries
The situation of charging occurs.
Further, include referring to Fig. 3 dotted portions, the equalizing circuit：PNP triode, TL431 and bleeder circuit；
Bleeder circuit is in parallel with battery, and bleeder circuit is provided with the first connection end, middle connection end and second connection end, bleeder circuit
The emitter stage of first connection end and PNP triode connects, and the emitter stage of PNP triode passes through bias resistance and PNP triode
Base stage connects, and the base stage of PNP triode and TL431 output end connect, the middle connection of TL431 reference edge and bleeder circuit
The second connection end of end connection, TL431 input and bleeder circuit connects, the colelctor electrode of PNP triode by diode with
The second connection end connection of bleeder circuit.
Bleeder circuit provides a reference voltage for TL431, when the voltage of battery reaches predetermined value, TL431 ginseng
Examine terminal voltage and reach 2.5V, TL431 forms path, and TL431 forms bleeder circuit, the base stage electricity of PNP triode with bias resistance
Pressure reaches lowest starting voltage, and colelctor electrode and the emitter stage of PNP triode form path, and PNP triode here is equivalent to one
Individual switching tube, metal-oxide-semiconductor can be used to substitute.
Further, current detection circuit 1 and adjustment circuit 2 are included referring to Fig. 2, charging circuit, current detection circuit 1 wraps
Triode Q1 is included, triode Q1 base stage is connected by the input of resistance R4 and charging circuit, and triode Q1 base stage passes through
Resistance R3 is grounded, triode Q1 grounded emitter, and triode Q1 colelctor electrode is to CPU transmission level signals；Adjustment circuit 2 is wrapped
Include triode Q2, triode Q3, triode Q4 and FET Q5；Triode Q2 base stage receives CPU control by resistance R5
Signal processed, triode Q2 base stage are grounded by resistance R6, and triode Q2 grounded emitter, triode Q2 colelctor electrode passes through
The Q3 of resistance R7 and triode base stage connection, triode Q3 base stage are connected by resistance R8 with the input of adjustment circuit 2,
Triode Q4 base stage is connected with triode Q3 base stage, triode Q3 grounded collector, triode Q3 emitter stage and three
Pole pipe Q4 emitter stage connection, triode Q4 colelctor electrode are connected with the input of adjustment circuit 2, and triode Q4 emitter stage leads to
The input that resistance R9 is crossed with adjustment circuit 2 is connected, and triode Q4 emitter stage passes through resistance R10 and FET Q5 G poles
Connection, FET Q5 S poles are connected with the input of adjustment circuit 2, FET Q5 D poles and the output of adjustment circuit 2
End connection.
Resistance R5, R6 form bleeder circuit, base stage output voltages of the control CPU to triode Q2；Triode Q2 current collection
Pole output voltage is triode Q4, Q3 base voltage, wherein, triode Q3 is positive-negative-positive, and triode Q2, triode Q4 are NPN
Type；Triode Q3, triode Q4 co- controlling FETs Q5 G pole tensions, and then control the voltage or electric current of output.
Further, charging circuit also includes filter circuit 3, and adjustment circuit 2 is connected with filter circuit 3, and filter circuit 3 is right
Outer output.
In addition, CPU is also associated with button and display screen, button is responsible for switch and the output of whole power circuit by CPU
The function of voltage switching.Its concrete operating principle is to push button for the first time, and power circuit is connected, and connects 5V USB output ports；
Long-press once, switches to and connects 15V DC output ports；Again by once, power circuit is closed.
Charging inlet can connect automobile power source, can be that car emergency startup power supply charges, but be both needed to be depressured during charging
To more than 12.6V.
Equalization charging circuit is provided with charge management module, so as to balanced with each cell batteries to battery
Charge function.Balanced discharge circuit is provided with electric discharge management module, so as to equal with each cell batteries to battery
Weigh discharging function.The setting of equalization charging circuit and balanced discharge circuit ensure that each cell batteries in battery can
Safety is full of and safe-discharge, the phenomenon that some monomer overcharges with over-discharge is avoided, so as to improve whole power supply
Security and service life.
Further, in addition to protection circuit.Protection circuit is used to protect the excessively stream of battery, overvoltage, over.
Referring to Fig. 4, protection circuit can protect battery in charging from too high voltages, the harm of super-high-current, its
Operation principle is when running into too high voltages, super-high-current, when short-circuit, transmits a signal to CPU immediately, and closed by CPU instruction
Stop charging process；Protection circuit can also protect battery in electric discharge from low pressure, super-high-current, short-circuit harm, its
Operation principle is when running into low-voltage, super-high-current, and short circuit transmits a signal to CPU immediately, and is closed down and put by CPU instruction
Electric process.The setting of protection circuit avoids because of overcurrent and too high voltages and crosses low-voltage, short circuit, caused blast on fire etc.
Dire consequences.
Protection circuit includes protection chip, and protection chip model is S8254, and protection circuit includes detection circuit, detection electricity
The input on road is connected with the positive pole of each battery, detects the output end and induction end (V1, V2, V3 of protection chip of circuit
End) signal connection, the multiple battery is connected in series to form batteries；Protection circuit also includes being connected in series with battery
Metal-oxide-semiconductor Q17 and metal-oxide-semiconductor Q16；Metal-oxide-semiconductor Q16 S poles and the signal end of protection circuit connect, metal-oxide-semiconductor Q16 D poles and metal-oxide-semiconductor
Q17 D poles connection, metal-oxide-semiconductor Q17 S poles and the positive pole of batteries connect, and protect DOP control terminals, the COP control terminals of chip
The G poles with metal-oxide-semiconductor Q17, metal-oxide-semiconductor Q16 G poles are connected respectively.
Detection circuit includes detection resistance, and protection chip is connected by detection resistance with the positive pole of each battery.
Overcurrent protection (referring to Fig. 4)：When discharge stream is bigger than certain value, this state and maintain certain time with
On, then into overcurrent condition.The DOP of chip control terminal voltage is protected to be changed into VDD level, metal-oxide-semiconductor Q17 is changed into OFF.And stop
Only discharge, protect the COP control terminals of chip to be changed into high impedance, due on the current potential of P+ terminals (i.e. the signal end of protection circuit)
Draw, cause charging metal-oxide-semiconductor Q16 to be changed into OFF.The VMP terminals of protection chip are pulled to VDD by internal resistance.
Overvoltage protection (Fig. 4)：When the voltage ratio certain value of some battery is high, this state maintains more than certain time
When, protect the COP control terminals of chip to be changed into high impedance.Protect edge of the COP control terminals of chip by outer meeting resistance pull-up for P+
Therefore charging metal-oxide-semiconductor Q16 is changed into OFF, and stop charging.
Over (Fig. 4)：When the voltage ratio certain value of some battery is low, this state and maintain certain time with
When upper, the voltage of the DOP control terminals of chip was protected to be changed into VDD, electric discharge metal-oxide-semiconductor Q17 is changed into OFF, and stops electric discharge.
When needing to emergency starting power source charges, automobile power source input port can be used, charging input end mouth connects
Enter voltage and be not less than 12.6V, charge mode is constant current-constant voltage mode, i.e., first according to 1A~4A electric current constant-current charge, in electricity
When pressure reaches 12.6V, switch to constant-voltage charge, stop charging when current reduction is to 0.2A.
Further as shown in fig. 7, discharging management circuit includes the electric discharge managing chip being engaged with battery, discharge tube
Reason chip model is S-8209A；The vdd terminal mouth of electric discharge managing chip is connected by resistance with the positive pole of corresponding battery, electric discharge
The VSS ports of managing chip connect with the negative pole of corresponding battery；Also include the field-effect transistor being engaged with battery, field
The G poles of effect transistor are connected with amplifying the CB ports of managing chip, the D poles of field-effect transistor and the negative pole of corresponding battery
Connection；The S poles of field-effect transistor are connected by resistance with the positive pole of corresponding battery.
The managing chip that discharges detects the voltage of battery by vdd terminal mouth, when in over-discharge state, the output of CB ports
High level, FET is short-circuit by battery, avoids overdischarge.
Yet further, it is corresponding with preceding battery to put along discharge current direction in two neighboring electric discharge managing chip
Big managing chip is preceding electric discharge managing chip, and electric discharge managing chip corresponding with rear battery discharges managing chip, such as Fig. 7 after being
In, CELL1 is preceding battery, and CELL2 is rear battery；DO ports, the CO ports of electric discharge managing chip pass through resistance respectively afterwards
It is connected with CTLD ports, the CTLC ports of preceding electric discharge managing chip.
Forward and backward electric discharge management chip signal connection, for adjusting the magnifying state of each battery.
In electric discharge, balanced management is carried out, as shown in Figure 7.
Balancing principle (Fig. 7)：When battery is in over-discharge state, CELL3 is less than certain voltage value, and maintains a period of time
More than, illustrate that CELL3 is changed into over-discharge state, then, by DO3 terminal-CTLD2 terminals, CELL2 can also be changed into overdischarge shape
State, at this moment if CELL2 voltages are higher than certain value, CELL2 can be such that electric quantity balancing control is changed into ' ON '；Then, by DO terminals-
CTLD1 terminals, CELL1 can also be changed into over-discharge state.Equally, if CELL1 is higher than certain value, can make electric quantity balancing control
It is changed into " ON ".
Transforming circuit includes booster circuit (referring to Fig. 5) and reduction voltage circuit (referring to Fig. 6).
When needing externally charging, transformation can be carried out to the output voltage of battery by transforming circuit, then carried out
Output.When such as being charged using emergency starting power supply to automobile storage battery, the 15V DC output ports of emergency starting power supply pass through one
Electric connection line is connected with automobile cigarette lighter socket, by supplementing electricity to automobile storage battery constant-current charge, starts automobile to reach
Purpose, charging current is between 3A~10A, preferably 5A.Booster circuit is provided with the output branch road to ensure that constant current is put
Electricity, so as to ensure that automobile being capable of timely emergency starting.This charging modes operation is very simple, without being pressed from both sides using the electricity of specialty
Son, the more automobile knowledge without specialty.
The operation principle of DC15V outputs：When access cell load, equipment is opened, U2 starts working, cell voltage is boosted
To 15V, then pass through MOS and inductance again, decompression is controlled by CPU pwm signal, constant current charges the battery.
The operation principle of DC 5V outputs：When USB accesses load transients, LDT is pulled low, and CPU reads this signal, just opens
U1 and 8205MOS, starts working, and cell voltage passes through U1 reduced output voltage constant pressures 5V；When load excessive, R48 electric current is flowed through
Also mutually strain is big, and CPU reads the current value for flowing through R48 by R47 in real time, reaches certain value when flowing through electric current, and remain certain
More than the time, CPU just closes U1 and 8205MOS, stops output.
It is when needing to use emergency starting power supply to be charged to digital electrical apparatus such as mobile phone, iPad, above-mentioned digital product is direct
5V USB output ports are connected to, reduction voltage circuit is provided with to ensure constant voltage discharge on the output branch road.
Above content is only presently preferred embodiments of the present invention, for one of ordinary skill in the art, according to the present invention's
Thought, there will be changes, this specification content should not be construed as to the present invention in specific embodiments and applications
Limitation.
Claims (5)
- A kind of 1. automobile power system of stabilization, it is characterised in that：Including：Multiple batteries；CPU；Charging inlet；Charge management circuit, it is connected with charging inlet, for being charged to battery；It is connected with cpu signal, by the electric current of charging High low signal passes to CPU, and receives CPU control signal, and equalizaing charge is carried out to the multiple battery；Discharging management circuit, it is connected with cpu signal；Its input is connected with the multiple battery, and output end is connected with transformation Circuit, externally exported by transforming circuit；The charge management circuit includes charging circuit and charging balanced circuit, and input and the charging inlet of charging circuit are electrically connected Connect, and the control terminal of charging circuit is connected with cpu signal, the output end of charging circuit electrically connects with charging balanced circuit, described Charging balanced circuit includes the equalizing circuit being connected in parallel with battery, balanced when the voltage of battery is not up to predetermined value Circuit is in open circuit；When the voltage of battery reaches predetermined value, equalizing circuit is short-circuit by battery；The equalizing circuit includes：PNP triode, TL431 and bleeder circuit；Bleeder circuit is in parallel with battery, bleeder circuit Provided with the first connection end, middle connection end and second connection end, the first connection end of bleeder circuit and the emitter stage of PNP triode Connection, the emitter stage of PNP triode are connected by the base stage of bias resistance and PNP triode, the base stage of PNP triode with TL431 output end connection, TL431 reference edge and the middle connection end of bleeder circuit connect, TL431 input and partial pressure The second connection end connection of circuit, the colelctor electrode of PNP triode are connected by the second connection end of output resistance and bleeder circuit；The transforming circuit includes booster circuit and reduction voltage circuit；Also include protection circuit, protection circuit includes protection chip, and protection chip model is S8254, and protection circuit includes detection Circuit, the input for detecting circuit are connected with the positive pole of each battery, detect output end and the sensing of protection chip of circuit End signal connects, and the multiple battery is connected in series to form batteries；Protection circuit also includes being connected in series with battery Metal-oxide-semiconductor Q17 and metal-oxide-semiconductor Q16；Metal-oxide-semiconductor Q16 S poles and the signal end of protection circuit connect, metal-oxide-semiconductor Q16 D poles and metal-oxide-semiconductor Q17 D poles connection, metal-oxide-semiconductor Q17 S poles and the positive pole of batteries connect, and protect DOP control terminals, the COP control terminals of chip The G poles with metal-oxide-semiconductor Q17, metal-oxide-semiconductor Q16 G poles are connected respectively.
- A kind of 2. automobile power system of stabilization according to claim 1, it is characterised in that：Charging circuit is examined including electric current Slowdown monitoring circuit and adjustment circuit, current detection circuit include triode Q1, and triode Q1 base stage passes through resistance R4 and charging circuit Input connection, triode Q1 base stage is grounded by resistance R3, triode Q1 grounded emitter, triode Q1 current collection Pole is to CPU transmission level signals；Adjustment circuit includes triode Q2, triode Q3, triode Q4 and FET Q5；Triode Q2 base stage receives CPU control signal by resistance R5, and triode Q2 base stage is grounded by resistance R6, triode Q2 hair Emitter grounding, triode Q2 colelctor electrode are connected by resistance R7 and the Q3 of triode base stage, and triode Q3 base stage passes through Resistance R8 and the input of adjustment circuit are connected, and triode Q4 base stage is connected with triode Q3 base stage, triode Q3 collection Electrode is grounded, and triode Q3 emitter stage is connected with triode Q4 emitter stage, triode Q4 colelctor electrode and adjustment circuit Input is connected, and triode Q4 emitter stage is connected by resistance R9 and the input of adjustment circuit, triode Q4 emitter stage It is connected by resistance R10 with FET Q5 G poles, FET Q5 S poles and the input of adjustment circuit connect, field-effect Pipe Q5 D poles and the output end of adjustment circuit connect.
- A kind of 3. automobile power system of stabilization according to claim 1, it is characterised in that：CPU is connected with button and shown Display screen.
- A kind of 4. automobile power system of stabilization according to claim 1, it is characterised in that：Discharging management circuit include with The electric discharge managing chip that battery is engaged, electric discharge management chip model is S-8209A；The vdd terminal mouth of electric discharge managing chip leads to Cross resistance to connect with the positive pole of corresponding battery, the VSS ports for the managing chip that discharges connect with the negative pole of corresponding battery；Also wrap The field-effect transistor being engaged with battery is included, the G poles of field-effect transistor are connected with the CB ports for the managing chip that discharges, field The D poles of effect transistor connect with the negative pole of corresponding battery；The S poles of field-effect transistor pass through resistance and corresponding battery Positive pole connects.
- A kind of 5. automobile power system of stabilization according to claim 4, it is characterised in that：Two neighboring electric discharge management core In piece, electric discharge managing chip corresponding with preceding battery is preceding electric discharge managing chip, the management core that discharges corresponding with rear battery Piece is discharged managing chip after being, the negative pole of preceding battery is connected with the positive pole of rear battery；Afterwards discharge managing chip DO ports, CO ports are connected by resistance with CTLD ports, the CTLC ports of preceding electric discharge managing chip respectively.
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| CN201510473074.1A CN105150963B (en) | 2015-08-05 | 2015-08-05 | A kind of automobile power system of stabilization |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017066916A1 (en) * | 2015-10-20 | 2017-04-27 | Unity Technology Development Corporation Limited | Start-up power sources, in particular for vehicle battery charging |
| CN105449787B (en) * | 2015-12-31 | 2018-04-13 | 深圳市华思旭科技有限公司 | A kind of automobile storage battery inverse charging device |
| CN105576758B (en) * | 2016-01-18 | 2019-03-01 | 深圳市锐创新科技有限公司 | A kind of fuel vehicle high voltage startup battery control system |
| CN105882571A (en) * | 2016-04-17 | 2016-08-24 | 深圳敏飞科技有限公司 | Novel automobile starting battery with emergency starting function |
| CN106058342A (en) * | 2016-08-10 | 2016-10-26 | 东莞市钛能能源科技有限公司 | Starting storage battery |
| CN107681765A (en) * | 2017-11-10 | 2018-02-09 | 常州欧迈斯新能源科技有限公司 | Solar DC energy storage power device and its control method |
| WO2021203490A1 (en) * | 2020-04-10 | 2021-10-14 | 深圳市新驰客科技有限公司 | Multifunctional motor vehicle emergency start-up power supply |
| CN112769103B (en) * | 2020-12-29 | 2022-06-28 | 上海稊米汽车科技有限公司 | Transient supporting protection system for super capacitor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1625014A (en) * | 2003-12-04 | 2005-06-08 | 比亚迪股份有限公司 | Dynamic power supply managment system for electric vehicle |
| CN201234155Y (en) * | 2008-07-30 | 2009-05-06 | 赵建和 | Equalization management apparatus for series battery pack |
| CN201854063U (en) * | 2010-11-16 | 2011-06-01 | 衡阳磬华电子技术有限公司 | Equalization discharge device for high-capacity rechargeable battery pack |
| CN201854071U (en) * | 2010-11-26 | 2011-06-01 | 东莞洲亮通讯科技有限公司 | Battery pack charging management system |
| CN203398236U (en) * | 2013-07-31 | 2014-01-15 | 北京嘉捷恒信能源技术有限责任公司 | Online battery monitoring detection and maintenance device |
| CN204978506U (en) * | 2015-08-05 | 2016-01-20 | 东莞市钜大电子有限公司 | Stable car power supply system |
-
2015
- 2015-08-05 CN CN201510473074.1A patent/CN105150963B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1625014A (en) * | 2003-12-04 | 2005-06-08 | 比亚迪股份有限公司 | Dynamic power supply managment system for electric vehicle |
| CN201234155Y (en) * | 2008-07-30 | 2009-05-06 | 赵建和 | Equalization management apparatus for series battery pack |
| CN201854063U (en) * | 2010-11-16 | 2011-06-01 | 衡阳磬华电子技术有限公司 | Equalization discharge device for high-capacity rechargeable battery pack |
| CN201854071U (en) * | 2010-11-26 | 2011-06-01 | 东莞洲亮通讯科技有限公司 | Battery pack charging management system |
| CN203398236U (en) * | 2013-07-31 | 2014-01-15 | 北京嘉捷恒信能源技术有限责任公司 | Online battery monitoring detection and maintenance device |
| CN204978506U (en) * | 2015-08-05 | 2016-01-20 | 东莞市钜大电子有限公司 | Stable car power supply system |
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