CN106936179A - A kind of imput output circuit for automobile starting power supply - Google Patents
A kind of imput output circuit for automobile starting power supply Download PDFInfo
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- CN106936179A CN106936179A CN201710048439.5A CN201710048439A CN106936179A CN 106936179 A CN106936179 A CN 106936179A CN 201710048439 A CN201710048439 A CN 201710048439A CN 106936179 A CN106936179 A CN 106936179A
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- 230000005611 electricity Effects 0.000 claims description 8
- 230000009977 dual effect Effects 0.000 claims description 5
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 101000908580 Homo sapiens Spliceosome RNA helicase DDX39B Proteins 0.000 claims description 3
- 102100021298 b(0,+)-type amino acid transporter 1 Human genes 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 21
- 238000005259 measurement Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 10
- 238000005286 illumination Methods 0.000 description 10
- 230000004888 barrier function Effects 0.000 description 6
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- LPCQOONMZQYYDO-RKVQIRNHSA-M CCC[C@H]1C(=O)N[C@H](C(=O)C(=O)N[C@H](C2=NC(=CS2)/C=C/C(=O)N[C@H](C(=O)NC[C@@H](C(=O)N1)NC(=O)[C@H](C)NC(=O)CNC(=O)C3=CC=C(C=C3)O)CS(=O)(=O)[O-])CC4=CC=C(C=C4)O)[C@@H](C)CC.[Na+] Chemical compound CCC[C@H]1C(=O)N[C@H](C(=O)C(=O)N[C@H](C2=NC(=CS2)/C=C/C(=O)N[C@H](C(=O)NC[C@@H](C(=O)N1)NC(=O)[C@H](C)NC(=O)CNC(=O)C3=CC=C(C=C3)O)CS(=O)(=O)[O-])CC4=CC=C(C=C4)O)[C@@H](C)CC.[Na+] LPCQOONMZQYYDO-RKVQIRNHSA-M 0.000 description 3
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Classifications
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- H02J7/0021—
-
- H02J7/0026—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/40—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries adapted for charging from various sources, e.g. AC, DC or multivoltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of imput output circuit for automobile starting power supply, including charging input circuit and power output circuit；Described is that power supply input circuit has 4 input interfaces, and 4 interfaces are respectively automobile storage battery power taking interface, dry battery charge interface, USB charging inlets and automobile cigarette lighter interface；There is relay in power output circuit.The imput output circuit for being used for automobile starting power supply has multiple power sources interface, is particularly suitable for the occasion without AC-powered for portable power source charges.
Description
Technical field
The present invention be more particularly directed to a kind of imput output circuit for automobile starting power supply.
Background technology
Portable power source is widely used, and existing portable power source is typically all to connect AC power by power supply adaptor to obtain electricity
Can, but, using the inconvenient occasion of alternating current, charging just becomes highly difficult.
In addition, automobile starting power supply needs to export larger starting current to automobile, current value up to hundreds of amperes, thus its
Output control circuit needs to be specifically designed.
Therefore, it is necessary to design a kind of imput output circuit for automobile starting power supply.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of imput output circuit for automobile starting power supply, the use
There is multiple power sources interface in the imput output circuit of automobile starting power supply, be particularly suitable for the occasion without AC-powered to move
Dynamic power source charges.
The technical solution of invention is as follows：
A kind of imput output circuit for automobile starting power supply, including charging input circuit and power output circuit；
Described is that power supply input circuit has 4 input interfaces, and 4 interfaces are respectively automobile storage battery power taking interface, do
Battery charging inlet, USB charging inlets and automobile cigarette lighter interface；
There is relay in power output circuit.
Automobile storage battery power taking interface is the first power input (VBOUT+)；Dry battery charge interface is input into for second source
End (VCC-BAT)；
USB charging inlets are the 3rd power input (USB-IN)；3rd power input connects the first electricity through diode D17
Source input；
Automobile cigarette lighter interface is the 3rd power input (BAT1+)；3rd power input connects first through diode D16
Power input；
First power input is used to connect with the positive pole of automobile batteries；
Second source input is used to connect the positive pole of dry cell batteries；
First power input connects the input of voltage-stablizer through the first diode D13；Second source input is through the two or two
Pole pipe D14 connects the input of voltage-stablizer；
The output end of voltage-stablizer is power output end；The output end of voltage-stablizer exports the DC voltage of 3.3~5V.
Described the first diode D13, the second diode D14 is BAT54CW type Schottky-barrier diodes.
Described voltage-stablizer is ME6119A33PG type voltage-stablizers.
Power output circuit includes relay and the first drive module；
The first described drive module includes the first control signal input circuit and 2 N-MOS pipes Q9 and Q13；
First control signal input circuit includes the resistance R52 and R19 of series connection；First termination control signal of resistance R52
CTL-START；Second end of resistance R52 is grounded through resistance R19；The G of 2 N-MOS pipes Q9 and Q13 is extremely shorted to resistance R52
With the tie point of R19；The S of 2 N-MOS pipes Q9 and Q13 is extremely grounded；2 D poles of N-MOS pipes Q9 and Q13 and accumulation power supply
The first coil of relay is connected between positive pole BAT+.
Power output circuit also includes the second drive module；Described relay is dual input coil form relay, is had
First coil and the second coil, and share a pair of output contacts；
The second described drive module includes the second control signal input circuit and 2 N-MOS pipes Q1 and Q2；
Second control signal input circuit includes the resistance R2 and R7 of series connection；The first termination control signal DAT of resistance R2；
Second end of resistance R2 is grounded through resistance R7；The G of 2 N-MOS pipes Q1 and Q2 is extremely shorted to the tie point of resistance R2 and R7；2
The S of individual N-MOS pipes Q1 and Q2 is extremely grounded；It is connected between the D poles of 2 N-MOS pipes Q1 and Q3 and the positive pole BAT+ of accumulation power supply
Second coil of relay.
Resistance R52 and resistance R2 are 1K ohm；Resistance R19 and resistance R7 are 20K ohm.
Described accumulation power supply is the accumulation power supply based on super capacitor, and accumulation power supply includes 5 super capacitors of series connection,
The capacitance of each super capacitor is 350F.
Charging input circuit and power output circuit connect with accumulation power supply；Described accumulation power supply is based on super electricity
The accumulation power supply of appearance.
The input of voltage-stablizer is provided with electrochemical capacitor (C40)；The input and output of voltage-stablizer are also respectively connected to one
Non-electrolytic capacitor (C37 and C51)；The capacitance of described electrochemical capacitor is 47uF, and the capacitance of described non-electrolytic capacitor is
0.1uF。
Second input is connected through resistance R23 with the positive pole of the second diode D14.
The resistance of resistance R23 is 10 ohm.
First diode D13 is formed in parallel by two monomer diodes；Second diode D14 is by 2 poles of monomer two
Pipe is formed in parallel.Parallel connection in the same direction refers to that positive pole and positive pole connect, and negative pole connects with negative pole.
Described automobile starting power supply also includes LED drive circuit；
LED drive circuit includes illumination type LED (D15), red LED indicator lamp, green LED indicator lamp and switching device
(Q5)；
The positive pole of illumination type LED connects DC power anode (5V-VDD) through the first current-limiting resistance；Illumination type LED it is negative
Pole is grounded through switching device；The control end of switching device connects LED control ports (CTL-LED) through resistance R11；
After the positive pole short circuit of red LED indicator lamp and green LED indicator lamp dc source is connect through the second current-limiting resistance (R53)
Positive pole (5V-VDD)；
The negative pole of red LED indicator lamp and green LED indicator lamp connects red LED lamp control port (LED-R) and green respectively
Color LED control port (LED-G).
Described switching device is managed for N-MOS；The D poles of N-MOS pipes connect the negative pole of illumination type LED；The S poles of N-MOS pipes
Ground connection (SGND)；The G poles connecting resistances R11 of N-MOS pipes；The model 2N7002K of N-MOS pipes.
Described switching device is the triode of NPN type；The C poles of triode connect the negative pole of illumination type LED；Triode
E poles are grounded (SGND)；The B poles connecting resistances R11 of triode；
Red LED indicator lamp and green LED indicator lamp use dual-colored LED lamp (D4)；First current-limiting resistance is 50 ohm, the
Two current-limiting resistances (R53) are 2.4K ohm, and resistance R11 is 1K ohm；DC power anode is 3.3V.
There is relay drive circuit, relay drive circuit includes relay and the first drive module in output circuit；
The first described drive module includes the first control signal input circuit and 2 N-MOS pipes Q9 and Q13；
First control signal input circuit includes the resistance R52 and R19 of series connection；First termination control signal of resistance R52
CTL-START；Second end of resistance R52 is grounded through resistance R19；The G of 2 N-MOS pipes Q9 and Q13 is extremely shorted to resistance R52
With the tie point of R19；The S of 2 N-MOS pipes Q9 and Q13 is extremely grounded；2 D poles of N-MOS pipes Q9 and Q13 and accumulation power supply
The first coil of relay is connected between positive pole BAT+.
The described automobile starting power supply based on super capacitor also includes detection circuit, and detection circuit includes temperature detection branch
Road, supply voltage detection branch and A/D converter；Described A/D converter is multi-channel a/d converter；A/D converter it is defeated
Go out end output testing result data；
In temperature detection branch road, thermistor RT1 is connected with supply voltage (5V-VDD), thermistor RT1 and resistance R22
Series connection, resistance R22 ground connection；The first analog signal that the tie point (V07) of thermistor RT1 and resistance R22 connects A/D converter is defeated
Inbound port (AN1)；
In supply voltage detection branch, resistance R66 and R67 ground connection of the supply voltage Vbout+ through being sequentially connected in series；Resistance R66
With the second input end of analog signal mouthful (AN2) that the tie point (V06) of R67 connects A/D converter.
Detection circuit includes switch detection branch；In switch detection branch, supply voltage (5V-VDD) is through what is be sequentially connected in series
Resistance R89, switch SW1 and resistance R21 ground connection；The tie point (CLK) of resistance R89 and switch SW1 connects the clock letter of A/D converter
Number end (CLK/P2.1)；
Governor circuit uses SC8F2712 cake cores；Booster circuit uses FP5139 chips.
Booster circuit uses FP5139 type integrated chips.
Dry battery charge interface is connected with dry battery cabin, and the dry cell of 3~5 section 1.5V can be accommodated in dry battery cabin.
Automobile starting power supply based on super capacitor also includes the counter voltage protection circuit being connected with governor circuit.
3 control ends：The control output end of CTL-CHG, CTL-INA and CTL-INB from MCU, specifically, circuit work
Make principle as follows：
CTL-INA：During high level, by Q3, CTL-A obtains low level, causes Q14 to turn on, and external voltage is directly through people
Electronics charges to energy-storage module；This is the first stage charged；
CTL-INB：During high level, low level is obtained by CTL-B after Q7, so that Q8 is turned on, external voltage connects U9；
CTL-CHG：During high level, through Q12 after, obtain low level in EN-19V, the CTL terminal potentials of U9d are pulled low, and U9 enters
Enter normal mode of operation, export constant pressure and charged to energy-storage module.
During CTL-CHG high level, it is desirable to which CTL-INA is in low level, using alternation pattern.
CTL-START and DAT are respectively normal control signal and exception control；It is normal to be controlled to user's actively unlatching electric discharge
Switch, switching relay realizes electric discharge；Exception control refers to that one of following 5 kinds of situations occur：
1. clip terminal voltage is too low (being less than 11VDC)
2. clip terminal voltage is too high (being higher than 15VDC)
3. clip is reversed
4. clip short circuit
5. internal wiring temperature is too high；
Case above is detected by correlation detecting circuit.
Beneficial effect：
Imput output circuit for automobile starting power supply of the invention, its input circuit uses 2 power inputs, one
Individual to connect automobile batteries (such as connecing battery by cigar lighter socket), one connects dry cell batteries, be particularly suitable for it is vehicle-mounted use, wireless communication
Electricity can be that the energy-storage module of portable power source charges.
In addition, using BAT54CW type Schottky-barrier diodes, forward voltage drop is low (because schottky barrier height is less than
PN junction barrier height, therefore its forward conduction threshold voltage and forward voltage drop are all lower than PN junction diode (about low 0.2V)), due to
SBD (Schottky-barrier diode) is a kind of majority carrier conductive devices, in the absence of minority carrier lifetime and Reverse recovery
Problem.The reverse recovery time of SBD is the charge and discharge time of Schottky barrier electric capacity, is totally different from PN junction diode
Reverse recovery time.Because the QRR of SBD is considerably less, therefore switching speed is very fast, and switching loss is also especially small, especially
It is suitable for frequency applications.The structure and feature of SBD make it suitable for being used as high-frequency rectification in low pressure, High-current output occasion.
Further, the ME6119A33PG types voltage-stablizer that voltage-stablizer is used is the adjustable master-hand's LDO voltage stabilizer of input voltage
(400mA Adjustable Voltage High Speed LDO Regulators), output voltage is accurate, input voltage model
It is 2.5~18V to enclose；Apply and be particularly suitable for herein, not only can be by booster circuit for energy-storage module charges, moreover it is possible to used as base
Quasi- voltage is used in temperature sensing circuit.
Therefore, the input voltage of this compatible wide scope of imput output circuit energy for automobile starting power supply, application
Extensively, and without alternating current it is chargeable, circuit working stability, it is practical.
In output circuit, relay is driven using 2 parallel drive modules, reliability is high, safe, in addition, and
Each drive module also has 2 N-MOS pipes, i.e., using Redundancy Design, time lag is small during switching, even if a switching device is damaged
It is bad, still can be with normal work, thus reliability is high, can ensure the regular picture of automobile starting power supply.
In addition, the automobile starting power supply based on super capacitor of the invention has the characteristics that：
(1) using a super capacitor or the super capacitor of multiple series connection as energy-storage module；
Using the accumulator of the portable power source based on super capacitor, it is totally different from using the energy storage mould of lithium ion battery
Block, risk without blast safe using super capacitor, and long service life；Portable power source based on super capacitor
Accumulator has the characteristics that：
A () charging rate is fast, charging can reach more than the 95% of its rated capacity in 10 seconds~10 minutes；
B () service life cycle is long, depth charge and discharge cycles access times do not have " memory effect " up to 1~500,000 times；
C () large current discharging capability is superpower, energy conversion efficiency is high, and process losses are small, and high current energy circulation efficiency >=
90%；
D () power density is high, up to 300W/KG~5000W/KG, equivalent to 5~10 times of battery；
(e) product raw material constitute, production, using, store and disassemble process and do not pollute, be preferably green ring
Protect power supply；
F () charge and discharge electric line is simple, without charging circuit as rechargeable battery, safety coefficient is high, and long-term use exempts from dimension
Shield；
G () ultralow temperature characteristics are good, and temperature range is wide -40 DEG C~and+70 DEG C；
H () is easy to detect, dump energy can directly read；
Sum it up, the outstanding advantages of the accumulator of this portable power source are that power density is high, the discharge and recharge time is short, follow
Ring long lifespan, operating temperature range are wide, and safe.
(2) interface of plurality of optional is used to be charged for energy-storage module；
Charging input interface is configured with automobile storage battery power taking interface, USB charging inlets, dry battery charge interface and automobile point
Cigarette device interface；Flexibility is strong, practical.
(3) whole charging process is controlled as governor circuit chip using the MCU with A/D converter, structure is tight
Gather, can significantly simplify circuit design；
(4) with bi-colour LED and illuminating lamp；
(5) charging process is controlled by preliminary filling electric control switch circuit and main charging control switch circuit；
(6) with overcurrent protection, overvoltage protection, temperature protection and electric voltage reverse-connection defencive function.
In addition, being implemented in combination with charge control with boosting protection chip using external control end, can realize that the complete of charging can
Control, security reliability is high；
Using BAT54CW type Schottky-barrier diodes, forward voltage drop is low (because schottky barrier height is less than PN junction gesture
Height is built, therefore its forward conduction threshold voltage and forward voltage drop are all lower than PN junction diode (about low 0.2V)), due to SBD (Xiao Te
Base barrier diode) it is a kind of majority carrier conductive devices, in the absence of minority carrier lifetime and reverse-recovery problems.SBD
Reverse recovery time be Schottky barrier electric capacity the charge and discharge time, be totally different from the Reverse recovery of PN junction diode
Time.Because the QRR of SBD is considerably less, therefore switching speed is very fast, and switching loss is also especially small, is particularly suitable for
Frequency applications.The structure and feature of SBD make it suitable for being used as high-frequency rectification in low pressure, High-current output occasion.
Further, the ME6119A33PG types voltage-stablizer that voltage-stablizer is used is the adjustable master-hand's LDO voltage stabilizer of input voltage
(400mA Adjustable Voltage High Speed LDO Regulators), output voltage is accurate, input voltage model
It is 2.5~18V to enclose；Apply and be particularly suitable for herein, not only can be by booster circuit for energy-storage module charges, moreover it is possible to used as base
Quasi- voltage is used in temperature sensing circuit.
Therefore, the input voltage of this compatible wide scope of dual input power supply circuit energy for portable power source, using wide
It is general, and be chargeable, circuit working stability without alternating current, it is practical.
LED drive circuit, the opening and closing of LED illumination lamp are controlled using switching device (metal-oxide-semiconductor), are consumed energy small, are used
The dual-colored LED lamp of compact occupies little space as red green indicator lamp, compact conformation, in addition, power supply circuit can provide stabilization
3.3V DC voltages, can guarantee that LED steady operation, light uniform, it is to avoid the light and shade change and flicker of light.Therefore, this LED
Drive circuit simple circuit, element used is few, it is easy to control.
The detection circuit of startup power supply, is detected using the A/D converter of multiple input path to plurality of voltages signal, also
Monitoring temperature can be realized subsequently to realize overtemperature protection, integrated level is high in addition, simple circuit, it is easy to implement, and accuracy of detection is high,
Technical guarantee can be provided for the trouble free service of automobile starting power supply.
In sum, this startup power supply perfect in shape and function, integrated level is high, safe, is adapted to promotion and implementation.
Brief description of the drawings
Fig. 1 is the electric theory diagram of the automobile starting power supply based on super capacitor；
Fig. 2 is the schematic diagram of the booster circuit part of the automobile starting power supply based on super capacitor；
Fig. 3 is the circuit theory diagrams of USB part；
Fig. 4 is the schematic diagram of control end CTL-CHG, CTL-INA and CTL-INB parts.
Fig. 5 is the circuit theory diagrams of the dual input power supply circuit for portable power source；
Fig. 6 is the schematic diagram of the accumulator of portable power source；
Fig. 7 is the schematic diagram of LED drive circuit.
Fig. 8 is the circuit theory diagrams of the relay drive circuit for portable power source；
Fig. 9 is the schematic diagram of detection branch；
Figure 10 is the schematic diagram of A/D converter.
Specific embodiment
For the ease of understanding the present invention, do more complete to inventing herein below in conjunction with Figure of description and preferred embodiment
Face, meticulously describe, but protection scope of the present invention is not limited to specific embodiment.
Unless otherwise defined, all technical terms used hereinafter are generally understood that implication phase with those skilled in the art
Together.Technical term used herein is intended merely to describe the purpose of specific embodiment, is not intended to limitation of the invention
Protection domain.
Embodiment 1：
Such as Fig. 1, a kind of automobile starting power supply based on super capacitor, including governor circuit, charging input interface, voltage stabilizing electricity
Road, booster circuit, energy-storage module and output circuit；
Charging input interface is through mu balanced circuit for governor circuit is powered；
The boosted circuit of charging input interface charges for energy-storage module；Booster circuit is controlled by governor circuit；
Output circuit includes output interface and is controlled by the relay of governor circuit；Energy-storage module is by relay and output
Interface is connected；
Described energy-storage module is the energy-storage module based on super capacitor.
The described automobile starting power supply based on super capacitor also includes preliminary filling electric control switch circuit and main charge control
On-off circuit；The precharged controlling switch circuit of charging input interface connects energy-storage module；Charging input interface is through main charge control
On-off circuit connects booster circuit.
The described automobile starting power supply based on super capacitor also includes the indicator light circuit and photograph that are connected with governor circuit
Bright lamp circuit.
The described automobile starting power supply based on super capacitor also includes the overvoltage crowbar, the mistake that are connected with governor circuit
At least one in stream protection circuit and thermal-shutdown circuit.
Charging input interface is automobile storage battery power taking interface, USB charging inlets, dry battery charge interface and automobile cigarette lighter
At least one in interface.
Described governor circuit is using the MCU with A/D converter.
Described energy-storage module includes the super capacitor of multiple series connection, and the number of super capacitor is 2-10.
Booster circuit uses FP5139 type integrated chips.
Dry battery charge interface is connected with dry battery cabin, and the dry cell of 3~5 section 1.5V can be accommodated in dry battery cabin.
Automobile starting power supply based on super capacitor also includes the counter voltage protection circuit being connected with governor circuit.
Such as Fig. 1~3, a kind of charging control circuit of the automobile starting power supply based on super capacitor, including boosting protection core
Piece U9, charging output circuit and 3 control ends：CTL-CHG, CTL-INA and CTL-INB；Boosting protection chip U9 is FP5139
Chip；
(1) tie point of resistance R34s and R33 ground connection of the control end CTL-CHG through being sequentially connected in series, resistance R34 and R33 connects
The G poles of NMOS tube Q12；The S poles ground connection of Q12, the D extremely EN-19V ends of Q12；
(2) resistance R91 and R90 ground connection of the control end CTL-INB through being sequentially connected in series, the tie point of resistance R91 and R90 connects
The G poles of NMOS tube Q7；The S poles ground connection of Q7, the D extremely CTL-B ends of Q7；
(3) resistance R14 and R13 ground connection of the control end CTL-INA through being sequentially connected in series, the tie point of resistance R14 and R13 connects
The G poles of NMOS tube Q3；The S poles ground connection of Q3, the D extremely CTL-A ends of Q7；
(4) dc source VBOUT+ connects the S poles of PMOS Q14, and the D poles of Q14 are connecing energy-storage module just through thermistor RT4
Input BAT+；The G poles that bridging has resistance R29, Q14 between the G poles and S poles of Q14 connect CTL-A ends；
(5) dc source VBOUT+ connects the S poles of PMOS Q8, the inductance L4 and diode D6 of the D poles of Q8 through being sequentially connected in series
Meet the positive input terminal BAT+ of energy-storage module；The D poles of Q8 meet the feeder ear VCC of boosting protection chip U9；
The G poles that bridging has resistance R30, Q8 between the G poles and S poles of Q8 connect CTL-B ends；
(6) EN-19V ends meet the control end CTL of boosting protection chip U9 through resistance R57；
(7) charging output circuit：
The GATE ends of boosting protection chip U9 meet B poles and the PNP type triode Q20 of NPN type triode Q19 through resistance R15
B poles；E poles of the Q19 and C of Q20 is extremely short connects；The C poles of Q19 meet power supply VCC-BAT through resistance R16；
The E poles of Q19 connect the G poles of NMOS tube Q10 through resistance R43, and the D poles of Q10 connect the tie point of inductance L4 and diode D6；
The S poles of Q10 and the E of Q20 are extremely grounded.
The positive input terminal USB_IN of USB interface connects the S poles of Q8 through diode D17.
The anode BAT1+ of energy-storage module connects the S poles of Q8 through diode D16.
A kind of current foldback circuit is related to include operational amplifier U1-B, measurement resistance R18 and boosting protection chip U9；
Measurement resistance R18 is serially connected in the front-end power loop of the automobile starting power supply based on super capacitor；
The first end of measurement resistance R18 connects the in-phase input end of operational amplifier through resistance R39；The of measurement resistance R18
Two ends connect the inverting input of operational amplifier through resistance R36；
Bridging has resistance R40 between the output end and inverting input of operational amplifier；
The output end of operational amplifier connects with the feedback end FB of boosting protection chip U9.
The output end of operational amplifier is connected by diode D20 with the feedback end FB of boosting protection chip U9；And feedback
End FB connects the negative pole of diode D20.
Described front-end power loop is USB current supply circuits (by USB interface for the energy-storage module of startup power supply charges)；
First end ground connection (SGND) of measurement resistance R18；The negative terminal BAT1- of the second termination USB charging inlets J4 of measurement resistance R18.
The model LM258ADR of operational amplifier, the model FP5139 of boosting protection chip U9, resistance R18, R39,
The resistance of R36 and R40 is respectively 0.01 ohm, 1K ohm, 1K ohm and 20K ohm.The computing that current foldback circuit is used is put
The circuit of big device is see-saw circuit, and multiplication factor is about 20 times；Increase diode D20 and play the work for preventing electric current from pouring in down a chimney
With ensureing one-way conduction；Boosting protection chip has short-circuit protection function, and step-up discharge function in itself in addition, and
The size of output current and voltage can be adjusted, feature-rich, amplifying circuit and protection IC are combined, and can realize that the excessively stream of circuit is protected
Shield, reliability is high.
Fig. 5, a kind of dual input power supply circuit for portable power source, including the first power input (VBOUT+), second
Power input (VCC-BAT), diode, voltage-stablizer and power output end (5V-VDD)；
First power input is used to connect with the positive pole of automobile batteries；
Second source input is used to connect the positive pole of dry cell batteries；Dry cell batteries include three section dry cells, often save 1.5V, defeated
It is 4.5V to go out；
First power input connects the input of voltage-stablizer through diode；Second source input connects voltage-stablizer through diode
Input；
The output end of voltage-stablizer is power output end；The output end of voltage-stablizer exports the DC voltage of 3.3~5V.
Described diode is BAT54CW type Schottky-barrier diodes.
Described voltage-stablizer is ME6119A33PG type voltage-stablizers.
The input of voltage-stablizer is provided with electrochemical capacitor (C40)；The input and output of voltage-stablizer are also respectively connected to one
Non-electrolytic capacitor (C37 and C51)；The capacitance of described electrochemical capacitor is 47uF, and the capacitance of described non-electrolytic capacitor is
0.1uF。
Such as Fig. 6, the energy-storage module of portable power source includes 5 super capacitors (C1, C2, C3, C4 and C7) of series connection；Each surpasses
The capacitance of level electric capacity is 350F；It is totally different from using the energy-storage module of lithium ion battery, it is safe using super capacitor,
Risk without blast, and long service life；The effect of 4 sockets (J45, J11, J11, J18) in circuit is that overstriking is led
Electrical circuit；Because typical case's application of the power supply is to provide automobile starting electric current, electric current is big, and overstriking galvanic circle can effectively be protected
Device and circuit board.Each super capacitor is parallel with a voltage stabilizing branch road, and voltage stabilizing branch routing resistance and voltage-stabiliser tube are in series,
The resistance of resistance is 1 ohm, the model MMSZS223BT1 of voltage-stabiliser tube.
Such as Fig. 7, LED drive circuit is including illumination type LED (D15), red LED indicator lamp, green LED indicator lamp and opens
Close device (Q5)；
The positive pole of illumination type LED connects DC power anode (5V-VDD) through the first current-limiting resistance；Illumination type LED it is negative
Pole is grounded through switching device；The control end of switching device connects LED control ports (CTL-LED) through resistance R11；
After the positive pole short circuit of red LED indicator lamp and green LED indicator lamp dc source is connect through the second current-limiting resistance (R53)
Positive pole (5V-VDD)；
The negative pole of red LED indicator lamp and green LED indicator lamp connects red LED lamp control port (LED-R) and green respectively
Color LED control port (LED-G).
Described switching device is managed for N-MOS；The D poles of N-MOS pipes connect the negative pole of illumination type LED；The S poles of N-MOS pipes
Ground connection (SGND)；The G poles connecting resistances R11 of N-MOS pipes.
The model 2N7002K of N-MOS pipes.
Red LED indicator lamp and green LED indicator lamp use dual-colored LED lamp (D4)；First current-limiting resistance is 50 ohm of (figures
In for R48 and R20 it is in parallel), the second current-limiting resistance (R53) is 2.4K ohm, and resistance R11 is 1K ohm；DC power anode is
3.3V。
LED control ports for MCU I/O port or key circuit output end, red LED lamp control port (LED-R) and
Green LED lamp control port (LED-G) is the I/O port of MCU.
Operation principle explanation：
(1) when CTL-LED is high level, Q5 conductings, D15 conductings are luminous；
(2) when LED-G is low level, green LED lamp conducting is luminous；
(3) when LED-R is low level, red LED lamp conducting is luminous.
Such as Fig. 8, for the relay drive circuit of portable power source, including relay and the first drive module；
The first described drive module includes the first control signal input circuit and 2 N-MOS pipes Q9 and Q13；
First control signal input circuit includes the resistance R52 and R19 of series connection；First termination control signal of resistance R52
CTL-START；Second end of resistance R52 is grounded through resistance R19；The G of 2 N-MOS pipes Q9 and Q13 is extremely shorted to resistance R52
With the tie point of R19；The S of 2 N-MOS pipes Q9 and Q13 is extremely grounded；2 D poles of N-MOS pipes Q9 and Q13 and accumulation power supply
The first coil of relay is connected between positive pole BAT+.
The described relay drive circuit for portable power source also includes the second drive module；Described relay is double
Input line ring relay, with first coil and the second coil, and shares a pair of output contacts；
The second described drive module includes the second control signal input circuit and 2 N-MOS pipes Q1 and Q2；
Second control signal input circuit includes the resistance R2 and R7 of series connection；The first termination control signal DAT of resistance R2；
Second end of resistance R2 is grounded through resistance R7；The G of 2 N-MOS pipes Q1 and Q2 is extremely shorted to the tie point of resistance R2 and R7；2
The s of individual N-MOS pipes Q1 and Q2 is extremely grounded；It is connected between the D poles of 2 N-MOS pipes Q1 and Q3 and the positive pole BAT+ of accumulation power supply
Second coil of relay.
Resistance R52 and resistance R2 are 1K ohm；Resistance R19 and resistance R7 are 20K ohm.
Ceramic condenser C5 and C6 are connected between the G poles and ground of model 2N7002K, the N-MOS pipe of N-MOS pipes, each
The capacitance of ceramic condenser is 0.1uF, and diode D7, BAT+ and a N-MOS are connected between the D poles of BAT+ and N-MOS pipes Q9
A diode D10 is connected between the D poles of pipe Q1.
CTL-START and DAT are respectively normal control signal and exception control；It is normal to be controlled to user's actively unlatching electric discharge
Switch, switching relay realizes electric discharge；Exception control refers to that one of following 5 kinds of situations occur：
1. clip terminal voltage is too low (being less than 11VDC)
2. clip terminal voltage is too high (being higher than 15VDC)
3. clip is reversed
4. clip short circuit
5. internal wiring temperature is too high；
Case above has correlation detecting circuit to detect.
Referring to Fig. 2, for the current foldback circuit of the automobile starting power supply based on super capacitor, including operational amplifier
U1-B, measurement resistance R18 and boosting protection chip U9；
Measurement resistance R18 is serially connected in the front-end power loop of the automobile starting power supply based on super capacitor；
The first end of measurement resistance R18 connects the in-phase input end of operational amplifier through resistance R39；The of measurement resistance R18
Two ends connect the inverting input of operational amplifier through resistance R36；
Bridging has resistance R40 between the output end and inverting input of operational amplifier；
The output end of operational amplifier connects with the feedback end FB of boosting protection chip U9.
The output end of operational amplifier is connected by diode D20 with the feedback end FB of boosting protection chip U9；And feedback
End FB connects the negative pole of diode D20.
Described front-end power loop is USB current supply circuits (by USB interface for the energy-storage module of startup power supply charges)；
First end ground connection (SGND) of measurement resistance R18；The negative terminal BAT1- of the second termination USB charging inlets J4 of measurement resistance R18.
The model LM258ADR of operational amplifier, the model FP5139 of boosting protection chip U9, resistance R18, R39,
The resistance of R36 and R40 is respectively 0.01 ohm, 1K ohm, 1K ohm and 20K ohm.
It is another to there is a current foldback circuit to be monitored for the output current to energy-storage module, such as Fig. 2, the circuit is transporting
U1-A is put for core；With R31 and R32 in parallel, as measurement resistance, (R31 and R32 are 0.01 ohm, are 0.005 Europe after parallel connection
Nurse)；Cleaning Principle is identical with the principle of the current foldback circuit based on amplifier U1-B.
Fig. 9~10, a kind of detection circuit of startup power supply, including temperature detection branch road, supply voltage detection branch and A/D
Converter；Described A/D converter is multi-channel a/d converter；The output end output testing result data of A/D converter；
In temperature detection branch road, thermistor RT1 is connected with supply voltage (5V-VDD), thermistor RT1 and resistance R22
Series connection, resistance R22 ground connection；The first analog signal that the tie point (V07) of thermistor RT1 and resistance R22 connects A/D converter is defeated
Inbound port (AN1)；
In supply voltage detection branch, resistance R66s of the supply voltage Vbout+ (for connecing automobile batteries) through being sequentially connected in series
It is grounded with R67；The tie point (V06) of resistance R66 and R67 connects second input end of analog signal mouthful (AN2) of A/D converter.
The detection circuit of described startup power supply also includes energy-storage module voltage detecting branch road；
In energy-storage module voltage detecting branch road, energy-storage module voltage BAT+ (positive terminal for connecing energy-storage module) is through successively
Resistance R74 and the R75 ground connection of concatenation；The tie point (V08) of resistance R74 and R75 connects the 3rd analog signal input of A/D converter
Port (AN0).
The detection circuit of described startup power supply also includes switch detection branch；In switch detection branch, supply voltage
Resistance R89, the switch SW1 and resistance R21 ground connection of (5V-VDD) through being sequentially connected in series；The tie point of resistance R89 and switch SW1
(CLK) clock signal terminal (CLK/P2.1) of A/D converter is connect.
The model SC8F2712 of described A/D converter；The resistance of thermistor RT1 is 10K ohm；Resistance R22,
The resistance value of R66, R67, R74, R75, R89 and R21 is respectively 10K, 100K, 100K, 301K, 100K, 1M and 100K, and unit is
Ohm.
SW1 presses rear CLK voltages and will produce transfer, and this low and high level variable signal is directly delivered to MCU, performs specific
Function, such as trigger relay realizes electric discharge, and the clock signal of chip internal is generated or outside other pins by chip oneself
There is provided.
U4 inherently MCU, therefore, the transformation result of ADC is supplied to the MCU in U4 by internal circuit (or register)
Module.
Claims (9)
1. a kind of imput output circuit for automobile starting power supply, it is characterised in that defeated including charging input circuit and power supply
Go out circuit；
Described is that power supply input circuit has 4 input interfaces, and 4 interfaces are respectively automobile storage battery power taking interface, dry cell
Charging inlet, USB charging inlets and automobile cigarette lighter interface；
There is relay in power output circuit.
2. the imput output circuit for automobile starting power supply according to claim 1, it is characterised in that automobile storage battery takes
Electrical interface is the first power input (VBOUT+)；Dry battery charge interface is second source input (VCC-BAT)；
USB charging inlets are the 3rd power input (USB-IN)；It is defeated that 3rd power input connects the first power supply through diode D17
Enter end；
Automobile cigarette lighter interface is the 3rd power input (BAT1+)；3rd power input connects the first power supply through diode D16
Input；
First power input is used to connect with the positive pole of automobile batteries；
Second source input is used to connect the positive pole of dry cell batteries；
First power input connects the input of voltage-stablizer through the first diode D13；Second source input is through the second diode
D14 connects the input of voltage-stablizer；
The output end of voltage-stablizer is power output end；The output end of voltage-stablizer exports the DC voltage of 3.3~5V.
3. the imput output circuit for automobile starting power supply according to claim 1, it is characterised in that described first
Diode D13, the second diode D14 are BAT54CW type Schottky-barrier diodes.
4. the imput output circuit for automobile starting power supply according to claim 1, it is characterised in that described voltage stabilizing
Device is ME6119A33PG type voltage-stablizers.
5. the imput output circuit for automobile starting power supply according to claim 1, it is characterised in that power supply output electricity
Road includes relay and the first drive module；
The first described drive module includes the first control signal input circuit and 2 N-MOS pipes Q9 and Q13；
First control signal input circuit includes the resistance R52 and R19 of series connection；The first termination control signal CTL- of resistance R52
START；Second end of resistance R52 is grounded through resistance R19；The G of 2 N-MOS pipes Q9 and Q13 is extremely shorted to resistance R52 and R19
Tie point；The S of 2 N-MOS pipes Q9 and Q13 is extremely grounded；2 D poles of N-MOS pipes Q9 and Q13 and the positive pole of accumulation power supply
The first coil of relay is connected between BAT+.
6. the imput output circuit for automobile starting power supply according to claim 1, it is characterised in that power supply output electricity
Road also includes the second drive module；Described relay is dual input coil form relay, with first coil and the second coil,
And share a pair of output contacts；
The second described drive module includes the second control signal input circuit and 2 N-MOS pipes Q1 and Q2；
Second control signal input circuit includes the resistance R2 and R7 of series connection；The first termination control signal DAT of resistance R2；Resistance
Second end of R2 is grounded through resistance R7；The G of 2 N-MOS pipes Q1 and Q2 is extremely shorted to the tie point of resistance R2 and R7；2 N-
The S of metal-oxide-semiconductor Q1 and Q2 is extremely grounded；Relay is connected between the D poles of 2 N-MOS pipes Q1 and Q3 and the positive pole BAT+ of accumulation power supply
Second coil of device.
7. the imput output circuit for automobile starting power supply according to claim 6, it is characterised in that resistance R52 and
Resistance R2 is 1K ohm；Resistance R19 and resistance R7 are 20K ohm.
8. the imput output circuit for automobile starting power supply according to claim 5, it is characterised in that described energy storage
Power supply is the accumulation power supply based on super capacitor, and accumulation power supply includes 5 super capacitors of series connection, the electricity of each super capacitor
Capacitance is 350F.
9. the imput output circuit for automobile starting power supply according to any one of claim 1~8, it is characterised in that
Charging input circuit and power output circuit connect with accumulation power supply；Described accumulation power supply is the energy storage based on super capacitor
Power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710048439.5A CN106936179A (en) | 2017-01-22 | 2017-01-22 | A kind of imput output circuit for automobile starting power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710048439.5A CN106936179A (en) | 2017-01-22 | 2017-01-22 | A kind of imput output circuit for automobile starting power supply |
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| CN106936179A true CN106936179A (en) | 2017-07-07 |
Family
ID=59422894
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710048439.5A Pending CN106936179A (en) | 2017-01-22 | 2017-01-22 | A kind of imput output circuit for automobile starting power supply |
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| CN109613968A (en) * | 2018-12-06 | 2019-04-12 | 华东计算技术研究所（中国电子科技集团公司第三十二研究所） | Power supply redundant output circuit with short-circuit protection |
| CN117595459A (en) * | 2024-01-17 | 2024-02-23 | 深圳市南霸科技有限公司 | Output voltage switching system and emergency starting power supply |
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