CN108418284A - Working power circuit - Google Patents
Working power circuit Download PDFInfo
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- CN108418284A CN108418284A CN201810398113.XA CN201810398113A CN108418284A CN 108418284 A CN108418284 A CN 108418284A CN 201810398113 A CN201810398113 A CN 201810398113A CN 108418284 A CN108418284 A CN 108418284A
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- 238000012360 testing method Methods 0.000 description 6
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Classifications
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- H02J7/0022—
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- 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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
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- H02J7/0021—
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- H02J7/0026—
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Working power circuit belongs to power circuit technical field more particularly to a kind of working power circuit.The present invention provides a kind of working power circuit that reliability is high.The present invention includes that 1 foot of LY1039F chip U1 and LD1117 ADJ chips A1, U1 are connected with 4 feet of U1, diode V3 cathodes respectively, and diode V3 anodes are connected with the one end inductance L2,3 feet of 6 foot miniature self-locking switch S2,4 feet of S2, the one end resistance R2 respectively；The inductance L2 other ends are connected with 2 feet of U1, diode V2 anodes respectively, diode V2 cathodes are connected with the one end capacitance C9, the one end resistance R8, the one end resistance R10 respectively, 5 feet of U1 are connected with the capacitance C9 other ends, the resistance R8 other ends, the one end resistance R1 respectively, and 3 feet of U1 are connected with the first ground wire, the resistance R1 other ends, the one end capacitance C11, the one end capacitance C26 respectively.
Description
Technical field
The invention belongs to power circuit technical field more particularly to a kind of working power circuits.
Background technology
Accumulator is a kind of device that chemical energy is directly translated into electric energy.Accumulator is in charging process, with using
Environment and itself difference will appear the inconsistent phenomenon of float charge voltage, then influence the discharge capability of accumulator；Therefore one is needed
Kind intelligent battery manages system, and working power circuit is a part for intelligent battery management system.
Invention content
The present invention addresses the above problem, provides a kind of working power circuit that reliability is high.
To achieve the above object, the present invention adopts the following technical scheme that, the present invention include LY1039F chips U1 and
1 foot of LD1117-ADJ chips A1, U1 are connected with 4 feet of U1, diode V3 cathodes respectively, diode V3 anodes respectively with inductance
The one end L2,3 feet of 6 foot miniature self-locking switch S2,4 feet of S2, the one end resistance R2 are connected；
The inductance L2 other ends are connected with 2 feet of U1, diode V2 anodes respectively, diode V2 cathodes respectively with the one end capacitance C9,
The one end resistance R8, the one end resistance R10 are connected, 5 feet of U1 respectively with the capacitance C9 other ends, the resistance R8 other ends, the one end resistance R1
It is connected, 3 feet of U1 are connected with the first ground wire, the resistance R1 other ends, the one end capacitance C11, the one end capacitance C26 respectively, and capacitance C26 is another
One end is connected with VCC power supplys, the capacitance C11 other ends, the resistance R10 other ends respectively；
The resistance R2 other ends are connected with the source electrode of the one end resistance R30, the one end resistance R21, the one end resistance R26, PMOS tube Q2 respectively,
The resistance R21 other ends are connected with 2 feet of the one end resistance R25, the one end resistance R24, LM431 chips Q3 respectively, the resistance R25 other ends
Connect VCC power supplys, the resistance R24 other ends are connected with 3 feet of the first ground wire, Q3 respectively, 1 foot of Q3 respectively with the resistance R26 other ends,
The one end resistance R27 is connected, the grid of another termination PMOS tube Q2 of resistance R27, the drain electrode of PMOS tube Q2 respectively with resistance R30 mono-
End, diode V4 anodes be connected, diode V4 cathodes respectively with VCC power supplys, capacitance C12 positive terminals, the one end capacitance C15, A1 3
Foot is connected, and capacitance C12 negative pole ends are connected with the capacitance C15 other ends, the first ground wire, the one end resistance R4 respectively, the resistance R4 other ends
Be connected respectively with 1 foot of A1, the one end resistance R5, the resistance R5 other ends respectively with 2 feet of A1,4 feet of A1, diode V1 cathodes,
Capacitance C32 positive terminals, the one end resistance R9, the one end resistance R40, the one end resistance R11 are connected, and diode V1 anodes are respectively with the first
Line, capacitance C32 negative pole ends are connected；
The resistance R9 other ends are connected with the one end capacitance C3, the one end capacitance C1, AVDD power ends respectively, the capacitance C3 other ends respectively with
The capacitance C1 other ends, the second ground wire are connected；The resistance R40 other ends respectively with the one end capacitance C4, the one end capacitance C2, VDD power ends
It is connected, the capacitance C4 other ends are connected with the capacitance C2 other ends, the first ground wire respectively；The resistance R11 other ends respectively with capacitance C14 mono-
End, the one end capacitance C13 ,+3.3V power ends are connected, and the capacitance C14 other ends are connected with the capacitance C13 other ends, the first ground wire respectively；
First ground wire is connected by resistance R12 with the second ground wire.
As a preferred embodiment, inductance L2 of the present invention is 15uH inductance, and capacitance C9 is 1uF capacitances, and resistance R8 is
100K Ohmic resistances, resistance R1 are 16K Ohmic resistances, and capacitance C11 is 10uF/16V capacitances, and capacitance C26 is 100nF capacitances, electricity
Resistance R25 is 390K Ohmic resistances, and resistance R21 is 36K Ohmic resistances, and resistance R24 is 7.5K Ohmic resistances, and resistance R26 is 7.5K
Ohmic resistance, resistance R27 are 1K Ohmic resistances, and resistance R12, R11, R40, R9 are 0 Ohmic resistance, and capacitance C12 and C32 are
10uF/16V capacitances, capacitance C15 are 100nF capacitances, and resistance R4 is 910 Ohmic resistances, and resistance R5 is 510 Ohmic resistances, capacitance
C14, C4, C3 are 100nF capacitances, and capacitance C13, C2, C1 are 1uF capacitances.
As another preferred embodiment, PMOS tube Q2 of the present invention uses AO3415 type PMOS tube.
Advantageous effect of the present invention.
Output end of the present invention provides independent magnetic bead isolated power supply for different circuit, improves circuit reliability.
The present invention adjusts CE by V3, controls the startup range of U1, realizes automatic start-stop, avoids since discharge voltage is low,
Influence the service life of accumulator.
Description of the drawings
The present invention will be further described with reference to the accompanying drawings and detailed description.The scope of the present invention not only limits to
In the statement of the following contents.
Fig. 1 is intelligent battery management system integrated circuit figure of the present invention.
In Fig. 1, sensor1~18 are internal resistance detection sensor, and H1 is current detection sensor.
Fig. 2 is controller and straight cutting row needle circuit diagram of the present invention.
Fig. 3 is police instruction partial circuit schematic diagram of the present invention.
Fig. 4 is anode voltage of the present invention and warming sampling section circuit diagram.
Fig. 5 is the filter circuit schematic diagram of DC pulse excitation and feedback signal acquisition of the present invention.
Fig. 6 is equalizaing charge circuit of the present invention and working power circuit schematic diagram.
Fig. 7 is switch S1 interlock circuit schematic diagrams of the invention.
Fig. 8 is programming wire jumper of the present invention part and alarm parameters and caching partial circuit schematic diagram.
Fig. 9 is present invention detection signal output terminal relevant portion circuit diagram.
Figure 10 is schematic structural view of the invention.
In Figure 10,1 it is accumulator, 2 is terminal, 3 is connecting hole, 4 is pcb board, 5 is detection signal output terminal, 6 is straight
Insert row needle.
Figure 11 is controller signals process chart of the present invention.
Figure 12,13,14 are circuit element parameter tables of the present invention.
Specific implementation mode
As shown, present invention can apply to intelligent batteries to manage system, it includes internal resistance that intelligent battery, which manages system,
Detection sensor, current detection sensor and host computer, the detection signal input port and accumulator of internal resistance detection sensor
Positive and negative anodes are connected, the output cathode end of positive the detection signal input part and charger for passing through current detection sensor of accumulator
Be connected, the cathode of accumulator is connected with the output negative pole end of charger, the detection signal output end of current detection sensor with it is upper
The current detection signal input port of position machine is connected, the internal resistance of the detection signal output port and host computer of internal resistance detection sensor
Signal input port is detected to be connected.
Intelligent battery of the present invention manages system matching by internal resistance detection sensor, current detection sensor and host computer
It closes and uses, accumulator unartificial non-destructive testing online may be implemented.
Intelligent battery management system of the present invention can measure battery tension, internal resistance, charging current parameter.
The accumulator and internal resistance detection sensor are multiple, and an accumulator corresponds to an internal resistance detection sensor,
It is connected with the output cathode end of charger by the detection signal input part of current detection sensor after each accumulator parallel connection；
The detection signal output end of each internal resistance detection sensor is connected with the current detection signal input port of host computer respectively.
The current detection sensor uses Hall sensor.
The internal resistance detection sensor includes pcb board, and detection signal output terminal is provided on pcb board and is connected with accumulator
The coupling part connect.
The coupling part being connect with accumulator includes being arranged in pcb board both sides and accumulator anode and cathode leading-out terminal
Corresponding connecting hole is that battery electric energy is made to be transmitted to the conductive sheet on pcb board circuit on the pcb board of connecting hole.This
When invention pcb board is connect with accumulator, first accumulator anode and cathode nut can be backed out, make the connecting hole on pcb board and accumulator
Anode and cathode terminals screwed hole of centre is aligned, then screws on nut.
It is provided with temperature acquisition component on the pcb board of the connection hole；It can measure accumulator temperature in charging process
Degree.
The temperature acquisition component uses thermistor.
The pcb board circuit includes battery electric energy input main road part, and being provided on pcb board can be defeated by battery electric energy
Enter switching part of the main road partial conductance to pcb board sensor circuit；Battery electric energy inputs main road part and the conductive sheet
It is connected.
The switching part arranges needle using straight cutting.The straight cutting row's needle for having warm connection function can be used, ensure continuous operation.
The internal resistance detection sensor includes controller, working power circuit, DC pulse excitation and feedback signal acquisition
Filter circuit and equalization charging circuit, the signal transmission port of controller is encouraged with DC pulse and the filter of feedback signal acquisition
The signal transmission port of wave circuit is connected；
The control signal output mouth of controller is connected with the control signal input mouth of equalization charging circuit, and weigh charging circuit
Charging adjusts port and is connected with battery positive voltage；
The electric energy output end mouth of working power circuit respectively with the power port of controller, the power port of equalization charging circuit,
The power input of working power circuit is connected with accumulator；
DC pulse encourages and the acquisition signal input port of the filter circuit of feedback signal acquisition is connected with accumulator anode and cathode.
The internal resistance detection sensor further includes anode voltage and warming sampling section, anode voltage and warming
The sampled signal output port of sampling section is connected with the sampled signal input mouth of controller, and anode voltage and warming are adopted
The sampled signal input mouth of sample part is connected with battery positive voltage, thermistor respectively, anode voltage and warming sampling
Partial power port is connected with the electric energy output end mouth of working power circuit.
The internal resistance detection sensor further includes police instruction part, the control signal input mouth of police instruction part with
The control signal output mouth of controller is connected, the power port of police instruction part and the electric energy output end of working power circuit
Mouth is connected.
The internal resistance detection sensor further includes programming wire jumper part, the signal transmission port of programming wire jumper part and control
The signal transmission port of device is connected, the power port of programming wire jumper part and the electric energy output end mouth phase of working power circuit
Even.
The internal resistance detection sensor further includes alarm parameters and caching part, and alarm parameters and the signal for caching part pass
Defeated port is connected with the signal transmission port of controller, alarm parameters and the power port and working power circuit for caching part
Electric energy output end mouth be connected.
The controller using C8051F007 chips U7, U7 22 feet respectively with 4 feet of PC357 chips U2, resistance R6 mono-
End is connected, and the resistance R6 other ends are connected with+3.3V power supplys, the one end capacitance C28 respectively, the first ground of another terminations of capacitance C28；U2's
4 feet connect the first ground；
1 foot of U2 is connected by resistance R3 with 4 feet of HDR2X4 insert rows X1, and 2 feet of U2 are connected with 2 feet of X1,6 feet of X1 with
4 feet of PC357 chips U5 are connected, and 8 feet of X1 are connected with 3 feet of U5, and 1 foot of U5 connects+3.3V power supplys by resistance R22, and the 2 of U5
Foot is connected with 19 feet of U7；
3 feet of U7 connect the second ground by capacitance C36, and 8 feet of U7 connect the second ground, and 9 feet of U7 connect the ends AVDD, 10 feet of U7 respectively with
1 foot of 3225 type crystal oscillator Y1, the one end capacitance C20 are connected, the capacitance C20 other ends respectively with the second ground wire, 2 feet of Y1, capacitance C21
One end is connected, and the capacitance C21 other ends are connected with 11 feet of 3 feet of Y1, U7 respectively, and 4 feet of Y1 connect the second ground, 17,21 feet of U7
The first ground is connect, 18,20 feet of U7 connect vdd terminal, and 29 feet of U7 connect the ends AVDD, and 30 feet of U7 connect the second ground.
By connector, it can make 1,3,5,7 feet of X1 are corresponding with 2,4,6,8 feet of X1 to be connected.
As shown in Fig. 1,9,1,3,5,7 feet of X1 are connected with 2,4,6, the 8 of the X1 of front side internal resistance detection sensor, most front side
1,3,5,7 feet of internal resistance detection sensor are connected with host computer, most 2,4,6,8 feet and host computer of rear side internal resistance detection sensor
It is connected, group circularizes communication network.
The fixed addresses ID, internal resistance detection sensor of the host computer with specified ID can be arranged in each internal resistance detection sensor
Communication；Specific communication modes are as follows：
1）Host computer sends 3 byte packet big-endian formats to sensor target（MSB is preferential）Order and receiving, Suo Youming
Enabling has unique ID;Use band ID（=255）Broadcasting command, find the unit that ID is corresponded on network.
2）254 sensors are at most connected on network, each sensor is assigned unique bus address ID.
3）Byte 3 be verification and.
4）The format of returned data be IEEE754 without half floating type of symbol, negative value is invalid.Be arranged such the bit error rate it is extremely low,
Strong antijamming capability；And meet accumulator internal resistance usually in the data of 0.1~50 milliohm magnitude high-precision.
8051-RXD1-U2 realizes that signal receives, and 8051-TXD1-U5 realizes that signal is sent, by 8051 control RXD1/TXD1
Transistor-Transistor Logic level frequency work out communication identification code, pass through U2/U5 realize sensor signal communication battery supply between forceful electric power object
Reason isolation.
The capacitance C28 is 100nF capacitances, and resistance R6 is 510 Ohmic resistances, and resistance R3 is 1.3K Ohmic resistances, resistance
R22 is 1.3K Ohmic resistances, and capacitance C36 is 100nF capacitances, and capacitance C20 and capacitance C21 are 22pF capacitances.
The 3225 type crystal oscillator Y1 is 22.1184MHz crystal oscillators.
The equalization charging circuit includes that 1 foot of LM321 chips U8, U8 are connected by resistance R58 with 31 feet of U7, U8's
5 feet are connected with power supply VCC, the one end capacitance C29 respectively, and the first ground of another terminations of capacitance C29,2 feet of U8 connect the first ground；
4 feet of U8 are connected with the one end resistance R59, the one end capacitance C43 respectively, and the capacitance C43 other ends are another with resistance R59 respectively
End, the collector of NPN triode Q1, the one end resistance R53, NMOS tube Q5 grid be connected, the emitter of NPN triode Q1 connects the
The base stage on one ground, NPN triode Q1 is connected by resistance R56 with 27 feet of U7, the resistance R53 other ends respectively with the first ground wire,
The one end resistance R48 is connected, and the resistance R48 other ends are connected with the source electrode of the one end resistance R55, NMOS tube Q5 respectively, and resistance R55 is another
End is connected with 3 feet of U8, and the drain electrode of NMOS tube Q5 is micro- with 1 foot, 6 feet of the one end resistance R47,6 foot miniature self-locking switch S2 respectively
2 feet of type self-lock switch S2,5 feet of 6 foot miniature self-locking switch S2,6 feet of 6 foot miniature self-locking switch S2 are connected, and resistance R47 is another
One end is connected with the one end capacitance C6, capacitance C8 anode, the ends Power+ respectively, the capacitance C6 other ends respectively with the first ground wire, capacitance
C8 cathode are connected.
The resistance R58 is 3K Ohmic resistances, and capacitance C29 is 100nF capacitances, and resistance R59 is 1K or 1.5K Ohmic resistances,
Capacitance C43 is 470pF capacitances, and resistance R55 is 100 Ohmic resistances, and resistance R56 is 2.2K Ohmic resistances, and resistance R53 is the Europe 47K
Nurse resistance, capacitance C6 are 100nF capacitances, and capacitance C8 is 100uF/16V capacitances.
The triode Q1 is SS8050 type triodes, and NMOS tube Q5 is FQB30N06L type NMOS tubes.
The filter circuit of the DC pulse excitation and feedback signal acquisition includes capacitance C24 and capacitance C5, capacitance C24 mono-
End is connected with 8 feet of HDR2X4 insert rows X3, and the capacitance C24 other ends are connected with the one end resistance R14, the one end resistance R15 respectively, resistance
The R14 other ends are connected with 32 feet of U7, and the resistance R15 other ends are connected with 4 feet of the one end capacitance C25, U7 respectively, and capacitance C25 is another
One the second ground of termination；
The one end capacitance C5 is connected with 1 foot of HDR2X4 insert rows X2, the capacitance C5 other ends respectively with the one end resistance R7, resistance R13 mono-
End is connected, and the resistance R7 other ends are connected with 32 feet of U7, and the resistance R13 other ends are connected with 5 feet of the one end capacitance C19, U7 respectively,
The second ground of another terminations of capacitance C19.
As shown, DACO is the analog output interface circuit of U7, the reference data voltage of measured target is raised to meet U7
Input window, convenient for test b+and B- voltage value.
The internal resistance measurement of internal resistance detection sensor of the present invention may range from 0.01~50ohm.
The capacitance C24 and C25 is 2.2uF capacitances, and resistance R14 and R7 are 56K Ohmic resistances, and resistance R15 and R13 are
36K Ohmic resistances, capacitance C25 and C19 are 4.7uF capacitances.
The working power circuit includes 1 foot of LY1039F chip U1 and LD1117-ADJ chips A1, U1 respectively with U1's
4 feet, diode V3 cathodes are connected, diode V3 anodes respectively with the one end inductance L2,3 feet of 6 foot miniature self-locking switch S2, S2
4 feet, the one end resistance R2 are connected；
The inductance L2 other ends are connected with 2 feet of U1, diode V2 anodes respectively, diode V2 cathodes respectively with the one end capacitance C9,
The one end resistance R8, the one end resistance R10 are connected, 5 feet of U1 respectively with the capacitance C9 other ends, the resistance R8 other ends, the one end resistance R1
It is connected, 3 feet of U1 are connected with the first ground wire, the resistance R1 other ends, the one end capacitance C11, the one end capacitance C26 respectively, and capacitance C26 is another
One end is connected with VCC power supplys, the capacitance C11 other ends, the resistance R10 other ends respectively；
The resistance R2 other ends are connected with the source electrode of the one end resistance R30, the one end resistance R21, the one end resistance R26, PMOS tube Q2 respectively,
The resistance R21 other ends are connected with 2 feet of the one end resistance R25, the one end resistance R24, LM431 chips Q3 respectively, the resistance R25 other ends
Connect VCC power supplys, the resistance R24 other ends are connected with 3 feet of the first ground wire, Q3 respectively, 1 foot of Q3 respectively with the resistance R26 other ends,
The one end resistance R27 is connected, the grid of another termination PMOS tube Q2 of resistance R27, the drain electrode of PMOS tube Q2 respectively with resistance R30 mono-
End, diode V4 anodes be connected, diode V4 cathodes respectively with VCC power supplys, capacitance C12 positive terminals, the one end capacitance C15, A1 3
Foot is connected, and capacitance C12 negative pole ends are connected with the capacitance C15 other ends, the first ground wire, the one end resistance R4 respectively, the resistance R4 other ends
Be connected respectively with 1 foot of A1, the one end resistance R5, the resistance R5 other ends respectively with 2 feet of A1,4 feet of A1, diode V1 cathodes,
Capacitance C32 positive terminals, the one end resistance R9, the one end resistance R40, the one end resistance R11 are connected, and diode V1 anodes are respectively with the first
Line, capacitance C32 negative pole ends are connected；
The resistance R9 other ends are connected with the one end capacitance C3, the one end capacitance C1, AVDD power ends respectively, the capacitance C3 other ends respectively with
The capacitance C1 other ends, the second ground wire are connected；The resistance R40 other ends respectively with the one end capacitance C4, the one end capacitance C2, VDD power ends
It is connected, the capacitance C4 other ends are connected with the capacitance C2 other ends, the first ground wire respectively；The resistance R11 other ends respectively with capacitance C14 mono-
End, the one end capacitance C13 ,+3.3V power ends are connected, and the capacitance C14 other ends are connected with the capacitance C13 other ends, the first ground wire respectively；
First ground wire is connected by resistance R12 with the second ground wire.
Output terminals A VDD, VDD ,+3.3V power supplys provide independent magnetic bead isolated power supply for different circuit, and it is reliable to improve circuit
Property.
S2 clicks 1 foot and 4 feet are connected, then clicks 1 foot and the disconnection of 4 feet.
CE is adjusted by V3, the startup range of U1 is controlled, realizes automatic start-stop.U1 stops work when V3 cathodes are less than 10.5V
Make, VCC is not exported, and U1 starts when V3 cathodes are more than 11V, avoids the service life that accumulator is influenced since discharge voltage is low.
The application working power circuit power input ranging from 1.6~15V, is applicable in all lead-acid accumulators and nickel chromium triangle stores
Battery.It is real by the rated value for giving V3 respectively when being operated in the accumulator of the different rated voltage specifications of tri- kinds of 2V/6V/12V
Now work normally.
The inductance L2 is 15uH inductance, and capacitance C9 is 1uF capacitances, and resistance R8 is 100K Ohmic resistances, and resistance R1 is 16K
Ohmic resistance, capacitance C11 are 10uF/16V capacitances, and capacitance C26 is 100nF capacitances, and resistance R25 is 390K Ohmic resistances, resistance
R21 is 36K Ohmic resistances, and resistance R24 is 7.5K Ohmic resistances, and resistance R26 is 7.5K Ohmic resistances, and resistance R27 is 1K ohm
Resistance, resistance R12, R11, R40, R9 are 0 Ohmic resistance, and capacitance C12 and C32 are 10uF/16V capacitances, and capacitance C15 is 100nF
Capacitance, resistance R4 are 910 Ohmic resistances, and resistance R5 is 510 Ohmic resistances, and capacitance C14, C4, C3 are 100nF capacitances, capacitance
C13, C2, C1 are 1uF capacitances.Resistance R12, R11, R40, R9 are magnetic bead resistance, improve circuit safety.
The PMOS tube Q2 uses AO3415 type PMOS tube.
The anode voltage and warming sampling section include that 6 feet of resistance R43 and resistance R19, U7 pass through resistance R43
It is connected respectively with the one end capacitance C30, the one end resistance R42, the one end resistance R18, the capacitance C30 other ends are another with resistance R42 respectively
End, the first ground wire are connected, and the resistance R18 other ends are connected with the ends Power+；
7 feet of U7 are connected with the one end capacitance C7, the one end resistance R20, thermistor respectively by resistance R19, the capacitance C7 other ends
The first ground is connect, the resistance R20 other ends are connected with+3.3V power supplys.
The resistance R43 and R19 is 3K Ohmic resistances, and capacitance C30 and C7 are 1000pF capacitances, and resistance R18 is the Europe 5.6K
Nurse resistance, resistance R42 are 36K Ohmic resistances, and resistance R20 is 30K Ohmic resistances.
The police instruction part includes LED light D1, D2, D3, D4, D5, D6, and D4 anodes are positive with+3.3V power supplys, D1 respectively
Extremely it is connected, D4 cathodes are connected with D1 cathodes, the one end resistance R32 respectively, and the resistance R32 other ends are connected with 28 feet of U7；
D5 anodes are connected with+3.3V power supplys, D2 anodes respectively, and D5 cathodes are connected with D2 cathodes, the one end resistance R33 respectively, resistance
The R33 other ends are connected with 24 feet of U7；
D3 anodes are connected with+3.3V power supplys, D6 anodes respectively, and D3 cathodes are connected with D6 cathodes, the one end resistance R31 respectively, resistance
The R31 other ends are connected with 23 feet of U7.
Police instruction part may indicate that normal operation, communicate in normal, inner walkway, internal resistance detection sensor fault.Control
Device processed judges whether VCC/3.3V/VDD/AVDD voltages are normal, and if normal, police instruction part indicates normal operation.Controller
Judge that communication data byte 3 checks whether normally, if normal, the intervals D1 4S two, which dodges, to be communicated normally.Controller is carrying out internal resistance
In test, D1 green lights continue bright 2S.Controller judges that accumulator internal resistance value super-limit prewarning, D2 amber lights continue bright.Controller is sentenced
Disconnected accumulator internal resistance value transfinites failure, and D3 red lights continue bright.
Described resistance R32, R33, R31 are 510 Ohmic resistances.
12 feet of the U7 are connected with the one end capacitance C18, the one end resistance R35 respectively, the first ground of another terminations of capacitance C18,
The resistance R35 other ends are connected with the one end capacitance C17, resistance R34 one end, the one end switch S1 respectively, and another termination of resistance R34+
3.3V power supplys, the switch S1 other ends are connected with the capacitance C17 other ends, the first ground wire respectively.
The capacitance C18 is 1uF capacitances, and resistance R35 is 1K Ohmic resistances, and resistance R34 is 100K Ohmic resistances, capacitance
C17 is 100nF capacitances.
3,5,7 feet of the X2 are connected, and 3,5 feet of X2 are connected with the ends BAT+, and 7 feet of X2 are connected with the ends Power+；The 2 of X2
Foot is connected with thermistor, and 4,6,8 feet of X2 are connected and are connected with the ends BAT+；
1,2,3,4,5,6,7 feet of X3 are connected and are connected with the ends BAT-, and 6 feet of X3 connect the first ground.
By on X2 connecting wire BAT+ and B+ can be linked together.
Programming wire jumper part includes the double contact pin J4 of HDR2X5,13,15 feet of U7 phase corresponding with 5,7 feet of J4 respectively
Even, 3 feet of J4 are connected with 9 feet of the first ground wire, J4 respectively, and 1 foot of J4 is connected with+3.3V power supplys, the one end resistance R23 respectively,
The resistance R23 other ends are connected with 14 feet of 4 feet of J4, U7 respectively, and 6 feet of J4 are connected with 16 feet of U7.
JTAG fever writes are connected in the case of power-up in B+/B- by the TMS/TDI/TDO/TCK of J4, programming 8051
Program；Programming is avoided 8051 not execute other tasks simultaneously.
The resistance R23 is 4.7K Ohmic resistances.
The alarm parameters and buffer unit point include 24CL02 chips U12, U7 25 feet respectively with the one end resistance R17, U12
6 feet be connected, 1,2,3,7,4 feet of U12 connect the first ground, 8 feet of U12 respectively with+3.3V power supplys, the one end resistance R16, capacitance
The one end C27 is connected, and the first ground of another terminations of capacitance C27, the resistance R16 other ends are connected with 26 feet of 5 feet of U12, U7 respectively.
The resistance R17 is 10K Ohmic resistances, and resistance R16 is 10K Ohmic resistances, and capacitance C27 is 100nF capacitances.
31 human hair combing wastes of the U7 go out voltage control signal voltage, control the feedback voltage of signal feeding voltage and 3 feet of U8
Compare, generates square wave in Q5, frequency is determined by the given frequency of voltage control signal；31 human hair combing wastes of 27 feet of U7 in U7 go out voltage
Current reference signal is provided while controlling signal voltage, current reference signal is respectively 3A and 8A；
It is the direct current square wave constant-current source that 80Hz~200Hz amplitudes are 3A~8A to do frequency by Q5, in the ends POWER+ and accumulator
Discharge excitation circuit is formed between cathode B-；
Acquire battery positive voltage B+ and battery terminal negative B- voltage differences and current difference by the 4 of U7,5 feet, with formula Rin=（V1-
V2）/（I1-I2）Internal resistance is calculated, wherein V1, V2 is that different constant-current sources give corresponding voltage twice, and I1, I2 are constant currents
Source given 3A and 8A.
Pulse excitation circuit（DAC1 signals send out circuit）With test acquisition circuit（AIN0, AIN1 signal receiving circuit）Point
The first ground wire and the second ground wire is arranged at four-wire system working method in open form, pulse excitation circuit and test acquisition circuit not altogether,
Reduce circuit noise.
The U7, which is connected to host computer enabling signal just, can send out voltage control signal voltage and current reference signal, host computer
The Production conditions of enabling signal are the current detection value H1 ＜ 300MA of current detection sensor.
After the U7 sends out voltage control signal voltage and current reference signal, following calculation processing step is carried out：
When constant-current source output signal frequency is 80Hz, V1, V2 are tested, stores I1, I2, whether verification V1, V2 be normal；
If so, 1）With formula Rin=（V1-V2）/（I1-I2）Internal resistance is calculated；
If it is not, 2）Constant-current source output signal frequency adds 1, tests V1, V2 under the frequency, stores I1, I2 under the frequency, verification
Whether the V1/V2 under the frequency is normal；
If so, carrying out step 1）；If it is not, carrying out step 2）.
It is described to calculate Rin with formula Rin=(V1-V2)/(I1-I2), it is compared with Rin initial values；
If the 15% of changing value ＜ Rin initial values；V1, V2 and respective initial value are then compared, if changing value is more than or equal to initial value
2 percent, then start equalizaing charge 150MA electric discharge, until the changing value that V1, V2 compare initial value is less than the hundred of initial value
/ bis-, data are uploaded to host computer；If the changing value that V1, V2 compare initial value is less than 2 the percent of initial value, carry out
The calculation processing step；
If the 15% of changing value >=Rin initial values, alarm.
The whether normal mode of verification V1, V2 is：The test value of V1, V2 are normal between 1.6~15V.
The startup equalizaing charge 150MA discharges：P0.6, which provides balanced enabling signal, makes Q5 be connected, POWER+, that is, electric power storage
Pond anode discharges into battery terminal negative by R48, and in the case that charge circuit nominal voltage is constant, energy transfer is stored to others
Battery.
When charging voltage can be set higher than 13.5V, is discharged with the electric current 200HZ frequencies of 150MA by Q5, realize and inhibit high
The function of voltage increase low-voltage accomplishes that battery floating charge pressure irrelevance is less than 5% in series connection group in certain time.
The invention also includes battery capacity measuring part, battery capacity measuring part uses following formula：
Capacity=100- (R_now-R_start) * (100-C_low)/((A_RR_start-1) * R_start) R_now is
Internal resistance value is surveyed, R_start is initial survey internal resistance value, and the C_low is capacity lower bound（%）, A_RR_start is that internal resistance is high
Limit, capacity is battery capacity（%）.
The C_low is the 80% of battery capacity.
The A_RR_start is 1.5.
The invention also includes accumulator anode and cathode insulation judgment part, accumulator anode and cathode insulate judgment part using following
Mode：
If the vector sum I of the electric current I- between electric current I+ and cathode and ground wire between the anode and ground wire of accumulator group is equal to 0,
Then insulation is good；
If the vector sum I of the electric current I- between electric current I+ and cathode and ground wire between the anode and ground wire of accumulator group is not equal to
0, electric current I are canonical plus earth failure, and electric current I is negative then cathode earth fault.
Electric current I can be measured by H1 in Fig. 1.
It is understood that above with respect to the specific descriptions of the present invention, it is merely to illustrate the present invention and is not limited to this
Technical solution described in inventive embodiments, it will be understood by those of ordinary skill in the art that, still the present invention can be carried out
Modification or equivalent replacement, to reach identical technique effect；As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (3)
1. working power circuit, including LY1039F chip U1 and LD1117-ADJ chips A1, it is characterised in that 1 foot of U1 is distinguished
Be connected with 4 feet of U1, diode V3 cathodes, diode V3 anodes respectively with the one end inductance L2,6 foot miniature self-locking switch S2 3
Foot, 4 feet of S2, the one end resistance R2 are connected；
The inductance L2 other ends are connected with 2 feet of U1, diode V2 anodes respectively, diode V2 cathodes respectively with the one end capacitance C9,
The one end resistance R8, the one end resistance R10 are connected, 5 feet of U1 respectively with the capacitance C9 other ends, the resistance R8 other ends, the one end resistance R1
It is connected, 3 feet of U1 are connected with the first ground wire, the resistance R1 other ends, the one end capacitance C11, the one end capacitance C26 respectively, and capacitance C26 is another
One end is connected with VCC power supplys, the capacitance C11 other ends, the resistance R10 other ends respectively；
The resistance R2 other ends are connected with the source electrode of the one end resistance R30, the one end resistance R21, the one end resistance R26, PMOS tube Q2 respectively,
The resistance R21 other ends are connected with 2 feet of the one end resistance R25, the one end resistance R24, LM431 chips Q3 respectively, the resistance R25 other ends
Connect VCC power supplys, the resistance R24 other ends are connected with 3 feet of the first ground wire, Q3 respectively, 1 foot of Q3 respectively with the resistance R26 other ends,
The one end resistance R27 is connected, the grid of another termination PMOS tube Q2 of resistance R27, the drain electrode of PMOS tube Q2 respectively with resistance R30 mono-
End, diode V4 anodes be connected, diode V4 cathodes respectively with VCC power supplys, capacitance C12 positive terminals, the one end capacitance C15, A1 3
Foot is connected, and capacitance C12 negative pole ends are connected with the capacitance C15 other ends, the first ground wire, the one end resistance R4 respectively, the resistance R4 other ends
Be connected respectively with 1 foot of A1, the one end resistance R5, the resistance R5 other ends respectively with 2 feet of A1,4 feet of A1, diode V1 cathodes,
Capacitance C32 positive terminals, the one end resistance R9, the one end resistance R40, the one end resistance R11 are connected, and diode V1 anodes are respectively with the first
Line, capacitance C32 negative pole ends are connected；
The resistance R9 other ends are connected with the one end capacitance C3, the one end capacitance C1, AVDD power ends respectively, the capacitance C3 other ends respectively with
The capacitance C1 other ends, the second ground wire are connected；The resistance R40 other ends respectively with the one end capacitance C4, the one end capacitance C2, VDD power ends
It is connected, the capacitance C4 other ends are connected with the capacitance C2 other ends, the first ground wire respectively；The resistance R11 other ends respectively with capacitance C14 mono-
End, the one end capacitance C13 ,+3.3V power ends are connected, and the capacitance C14 other ends are connected with the capacitance C13 other ends, the first ground wire respectively；
First ground wire is connected by resistance R12 with the second ground wire.
2. working power circuit according to claim 1, it is characterised in that the inductance L2 is 15uH inductance, and capacitance C9 is
1uF capacitances, resistance R8 are 100K Ohmic resistances, and resistance R1 is 16K Ohmic resistances, and capacitance C11 is 10uF/16V capacitances, capacitance
C26 is 100nF capacitances, and resistance R25 is 390K Ohmic resistances, and resistance R21 is 36K Ohmic resistances, and resistance R24 is 7.5K ohm of electricity
Resistance, resistance R26 are 7.5K Ohmic resistances, and resistance R27 is 1K Ohmic resistances, and resistance R12, R11, R40, R9 are 0 Ohmic resistance, electricity
Appearance C12 and C32 is 10uF/16V capacitances, and capacitance C15 is 100nF capacitances, and resistance R4 is 910 Ohmic resistances, and resistance R5 is 510 Europe
Nurse resistance, capacitance C14, C4, C3 are 100nF capacitances, and capacitance C13, C2, C1 are 1uF capacitances.
3. working power circuit according to claim 1, it is characterised in that the PMOS tube Q2 uses AO3415 type PMOS tube.
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| CN201810398113.XA CN108418284B (en) | 2018-04-28 | 2018-04-28 | Working power supply circuit |
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| CN109120141A (en) * | 2018-09-27 | 2019-01-01 | 广州金升阳科技有限公司 | A kind of start-up circuit of high reliability |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN208299461U (en) * | 2018-04-28 | 2018-12-28 | 沈阳劲达科技有限公司 | Working power circuit |
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| CN208299461U (en) * | 2018-04-28 | 2018-12-28 | 沈阳劲达科技有限公司 | Working power circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109120141A (en) * | 2018-09-27 | 2019-01-01 | 广州金升阳科技有限公司 | A kind of start-up circuit of high reliability |
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Effective date of registration: 20241024 Address after: Room 4225, Building C, No. 555 Dongchuan Road, Minhang District, Shanghai, 200241 Patentee after: Shanghai Chaoxuan Energy Co.,Ltd. Country or region after: China Address before: Room 1302, Block B, Fengtian Silicon Valley Building, No. 79 Sanhao Street, Heping District, Shenyang City, Liaoning Province, 110004 Patentee before: SHENYANG JINGDA TECHNOLOGY Co.,Ltd. Country or region before: China |