CN206272264U - Battery photovoltaic commercial power complementary combinations Logic control module - Google Patents
Battery photovoltaic commercial power complementary combinations Logic control module Download PDFInfo
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- CN206272264U CN206272264U CN201621204853.8U CN201621204853U CN206272264U CN 206272264 U CN206272264 U CN 206272264U CN 201621204853 U CN201621204853 U CN 201621204853U CN 206272264 U CN206272264 U CN 206272264U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
Battery photovoltaic commercial power complementary combinations Logic control module, including non-self-lock-ing button, non-self-lock-ing button realizes that the binary addition of touch potential is counted by double D flip-flop number modules, the output end of non-self-lock-ing button is also exported by delay circuit trigger data latch cicuit, the output end of two d type flip flops of double D flip-flop numbers modules is all connected with the data-latching circuit, one data output end of data-latching circuit connects the first relay by optical coupling isolation circuit, the contact of the first relay can make output port connect photovoltaic interface P1 chargings, another data output end of data-latching circuit connects the second relay by optical coupling isolation circuit, the contact of the second relay can make output port connect commercial power interface P2 chargings.Output port OUT1 can be made individually to connect the charging of one of photovoltaic interface, commercial power interface for the output end level of double D flip-flop numbers modules and connection photovoltaic interface, commercial power interface charge simultaneously, and the two does not charge to battery under shutdown mode.
Description
Technical field
The utility model is related to a kind of photovoltaic commercial power complementation charge and discharge maintenance device of battery.
Background technology
In daily life, be easy to carry because of battery, it is repeatable utilize, many conventional electronic equipments or
In instrument and meter all can use 12V storage battery power supplies, these electronic devices based on portable, with renewable new energy
Development, using photovoltaic, mains hybrid mode be battery charge will be as a kind of trend.Additionally, correct charge and discharge system
It is not only cost-effective, can also effectively extend the service life of battery, nominal voltage is the preferable terminal voltage of the battery of 12V
Scope is 12V~13.5V, and battery is in over-discharge state or overcharge condition can all influence the use longevity of battery
Life, nominal voltage for 12V battery in use, should try one's best and avoid the terminal voltage of battery from being in less than 12V for a long time
Or higher than 14.5V.
The battery of over-discharge state or overcharge condition is chronically at, because inner conductive ion cannot effectively be swashed
Hair, battery will largely effect on its service life because of improper use, and user is when using battery often to battery
Dump energy is unclear, and battery does not carry out timely and effectively discharge and recharge and may result in equipment work midway electric power deficiency or make
With it is unstable situations such as occur.
Utility model content
The utility model is for above shortcomings in the prior art, there is provided a kind of battery photovoltaic commercial power complementary combinations
Logic control module, can make battery individually connect one of photovoltaic interface, commercial power interface charge and simultaneously connection photovoltaic interface,
Commercial power interface charges, and the two does not charge to output port under shutdown mode, has the advantages that energy-conserving and environment-protective.
In order to solve the above-mentioned technical problem, the utility model uses following technical scheme:
Battery photovoltaic commercial power complementary combinations Logic control module, including a non-self-lock-ing button, non-self-lock-ing button pass through double D
Flip-flop number module realizes that the binary addition of touch potential is counted, and the output end of non-self-lock-ing button is also triggered by delay circuit
One data-latching circuit is exported, and the output end of two d type flip flops of double D flip-flop numbers modules is all connected with the data-latching circuit
Data input pin, a data output end of data-latching circuit connects the first relay by optical coupling isolation circuit, first after
The contact of electrical equipment can make output port OUT1 connect photovoltaic interface P1 chargings, and another data output end of data-latching circuit passes through
Optical coupling isolation circuit connects the second relay, and the contact of the second relay can fill output port OUT1 connections commercial power interface P2
Electricity, the output end level of described pair of two d type flip flops of D flip-flop number modules can make output port OUT1 individually connect photovoltaic to connect
One of mouth, commercial power interface charge and connection photovoltaic interface, commercial power interface charge simultaneously, and photovoltaic connects under shutdown mode
Mouth, commercial power interface do not charge to output port;
Being connected between the photovoltaic interface P1 and output port prevents the first diode of electric current reversely charging, the civil power from connecing
Be connected with the second diode for preventing electric current reversely charging between mouthful P2 and output port, when photovoltaic interface P1 and commercial power interface P2 simultaneously
When being charged for output port, the first diode can prevent commercial power charged its current flowing backwards when accounting for main to photovoltaic interface, and second
Diode can prevent photovoltaic charged its current flowing backwards when accounting for main to commercial power interface, so as to prevent photo-voltaic power supply or mains supply
Damage;
Further, described pair of D flip-flop numbers module includes first d type flip flop and the second d type flip flop of cascade, a D
The clock end of trigger connects the output end of the button Anti-shaking circuit, and the D ends of the first d type flip flop connect its inverse output terminal,
The D ends of the second d type flip flop connect its inverse output terminal, and the inverse output terminal of the first trigger connects the D ends of the second d type flip flop,
Then the binary addition counting module of asynchronous clock is constituted, wherein the second trigger is exported for high-order, the first trigger is
Low level is exported;
The inverse output terminal of described pair of the first d type flip flop of D flip-flop number modules and the inverse output terminal of the second d type flip flop
The data-latching circuit is connected, a data output end IN0_out of data-latching circuit passes through optical coupling isolation circuit and PNP
Triode Q1 connects the first relay, when the data output end IN0_out of data-latching circuit exports low level, by light
Coupling isolation circuit turns on PNP triode Q1, electricity on the first relay, the normally opened contact closure of the first relay, makes output end
Mouth OUT1 connection photovoltaic interfaces P1 charges;
Another data output end IN1_out of data-latching circuit is connected by optical coupling isolation circuit and PNP triode Q2
Second relay, when the data output end IN1_out of data-latching circuit exports low level, is made by optical coupling isolation circuit
PNP triode Q2 is turned on, electricity on the second relay, the normally opened contact closure of the second relay, output port OUT1 is connected city
Electrical interface P2 charges;
When the data output end IN0_out and data output end IN1_out of data-latching circuit U7 export low level,
It can be seen that, it can simultaneously drive electricity on the first relay and the second relay, make photovoltaic interface P1 and commercial power interface P2 while being
Output port OUT1 powers;
When the data output end IN0_out and data output end IN1_out of data-latching circuit U7 export high level,
This is shutdown mode, and photovoltaic interface and commercial power interface be not for output port OUT1 powers.
Further, the positive output end connection decoding of the first d type flip flop of the double D trigger and the second d type flip flop
Device, the first d type flip flop connects the low level input of decoder, and the second d type flip flop connects the high-order input of decoder, the decoding
The binary code of input is changed into the decimal system by device, and by numeral method, thus can show the button of non-self-lock-ing button
Number.
Preferably, the non-self-lock-ing button is double-point double-throw switch S1, and the plug-in strip connection of double-point double-throw switch S1 is pressed
The input of key Anti-shaking circuit, another plug-in strip of double-point double-throw switch S1 connects the triggering end of delay circuit, double-point double-throw switch
Two plug-in strips linkage, double-point double-throw switch S1 non-keying end ground connection;
The button Anti-shaking circuit is rest-set flip-flop Anti-shaking circuit, and the rest-set flip-flop Anti-shaking circuit is connected by two NAND gates
Constitute, after the double-point double-throw switch S1 is pressed and unclamped, the output end of rest-set flip-flop Anti-shaking circuit is tactile by rising edge level
Send out pair D flip-flop numbers module described and start working, the first d type flip flop of double D flip-flop numbers modules, the second d type flip flop are
Rise along level triggers;
The delay circuit uses 555 delay trigger circuits, and it is low level triggering trigger, until non-self-lock-ing button
After high level after release makes charging capacitor C13 charge to certain voltage, the output end of 555 delay trigger circuits just exports low electricity
It is flat, with trigger data latch cicuit output data, the delay time of 555 delay trigger circuits can adjust its charging capacitor C13 and
Adjustable resistance R7 is realized.
Preferably, the delay circuit uses chip NE555, and data-latching circuit is using chip 74HC573, double D triggerings
Device uses chip 74LS74, decoder to use chip 74LS47.
The beneficial effects of the utility model are:One of photovoltaic interface, commercial power interface can be individually connected to charge and while connect
Photovoltaic interface, commercial power interface is connect to charge, and photovoltaic interface, commercial power interface do not charge to battery under shutdown mode;
Meet the developing direction of renewable new energy, there are energy-conserving and environment-protective.
Brief description of the drawings
Fig. 1 is one of circuit diagram of photovoltaic commercial power complementary combinations Logic control module of the present utility model.
Fig. 2 is the two of the circuit diagram of photovoltaic commercial power complementary combinations Logic control module of the present utility model.
Fig. 3 is the three of the circuit diagram of photovoltaic commercial power complementary combinations Logic control module of the present utility model.
Fig. 4 is the four of the circuit diagram of photovoltaic commercial power complementary combinations Logic control module of the present utility model.
Fig. 5 compares the circuit theory diagrams of control module for the accumulator cell charging and discharging of the embodiment of the present invention.
Fig. 6 is the circuit diagram of voltage hysteresis comparator in the same direction.
Fig. 7 is the transmission characteristic figure of voltage hysteresis comparator in the same direction.
Fig. 8 is the transmission characteristic figure of first voltage hysteresis comparator in the embodiment of the present invention.
Fig. 9 is the transmission characteristic figure of second voltage hysteresis comparator in the embodiment of the present invention.
Battery tension collections and the circuit diagram of display module of the Figure 10 for the embodiment of the present invention.
Figure 11 is the circuit diagram of double 15V power supplys of the power module of the embodiment of the present invention.
Figure 12 is the circuit diagram of double 5V power supplys of the power module of the embodiment of the present invention.
Specific embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings, it will be appreciated that described herein
Embodiment is only used for illustrating implementation method of the present utility model, does not constitute to limitation of the present utility model.
Reference picture 1-12:12V batteries photovoltaic commercial power complementation charge and discharge maintenance device, including power module, photovoltaic commercial power
Complementary combinations Logic control module and accumulator cell charging and discharging compare control module, and the nominal voltage of battery is 12V.
The photovoltaic commercial power complementary combinations Logic control module includes being a non-self-lock-ing button, and it is two in the present embodiment
One plug-in strip of the double-point double-throw switch S1 of plug-in strip linkage, double-point double-throw switch S1 connects double D and triggers by RS buttons Anti-shaking circuit
Counting module, double-point double-throw switch another plug-in strip connection delay circuit U6, namely in figure double-point double-throw switch 4 end key_in
The triggering end TRIG of connection delay circuit U6, when double-point double-throw switch S1 is pressed, key_in is low level, delay circuit U6 quilts
Triggering;
The Enable Pin OE of the output end connection data-latching circuit U7 of delay circuit U6, the described pair of D flip-flop number module
Inverse output terminal IN0, IN1 of each d type flip flop are all connected with the data input pin of data-latching circuit U7, in the delay circuit
After U6 time delay certain hours, data output end IN0_out, IN1_out correspondence of trigger data latch cicuit U7 export its data
The data of input IN0, IN1;The data output end IN0_out of data-latching circuit U7 by optical coupling isolation circuit U9 and
PNP triode Q1 connects the first relay K1, when the data output end IN0_out of data-latching circuit exports low level,
Optical coupling isolation circuit U9 is turned on, and PNP triode Q1 conductings, electricity on the first relay K1, the normally opened contact of the first relay K1 is closed
Close, output port OUT1 is connected photovoltaic interface P1, in figure, the anode of photovoltaic interface P1 connects output port OUT1's by D5
The K of normally opened contact connection output port OUT1 of the negative terminal of K+, photovoltaic interface P1 after closing-;
Another data output end IN1_out of data-latching circuit U7 passes through optical coupling isolation circuit U12 and PNP triode Q2
The second relay K2 is connected, when the data output end IN1_out of data-latching circuit exports low level, optical coupling isolation circuit
U12 is turned on, PNP triode Q2 conductings, electricity on the second relay K2, the normally opened contact closure of the second relay K2, makes output end
Mouth OUT1 connection commercial power interfaces P2, the output port OUT1 is for connecting battery charging;
When two the data output ends IN0_out and IN1_out of data-latching circuit U7 export low level, while driving
Electricity on dynamic first relay K1 and the second relay K2, makes photovoltaic interface P1 and commercial power interface P2 be output port OUT1 and supplies
Electricity, namely simultaneously for battery charges;As the data output end IN0_out and data output end IN1_ of data-latching circuit U7
When out exports high level, this is shutdown mode, and photovoltaic interface and commercial power interface be not for output port OUT1 powers;
The delay circuit U6 be used for wait non-self-lock-ing key-press input finish and double D flip-flop numbers module final outputs after
Trigger data latch cicuit is exported;
Being connected between the photovoltaic interface P1 and output port OUT1 prevents the first diode D5 of electric current reversely charging, civil power
Being connected between interface P2 and output port OUT1 prevents the second diode D7 of electric current reversely charging, when photovoltaic interface P1 and civil power connect
Mouthful P2 charges for output port OUT1 simultaneously when, the first diode D5 can prevent commercial power charged its current flowing backwards when accounting for main extremely
Photovoltaic interface, the second diode D7 can prevent photovoltaic charged its current flowing backwards when accounting for main to commercial power interface, so as to prevent light
Volt power supply or mains supply are damaged;
Described pair of D flip-flop numbers module includes that the first d type flip flop U11A of cascade and the second d type flip flop U11B, a D are tactile
The clock end for sending out device connects the output end of the RS buttons Anti-shaking circuit, and the D ends of the first d type flip flop connect its inverse output terminal,
The D ends of the second d type flip flop connect its inverse output terminal, and the inverse output terminal of the first trigger connects the D ends of the second d type flip flop,
Then the binary addition counting module of asynchronous clock is constituted, wherein the second trigger is exported for high-order, the first trigger is
Low level is exported;
The rest-set flip-flop Anti-shaking circuit is connected and composed by two NAND gates U10A and U10B.When non-self-lock-ing button is pressed
When, its 1 end be low level, no matter whether non-self-lock-ing button unclamps its 1 end, as long as not with its 3 end in contact, U10A exports low all the time
Level, realizes the stabilization function of button.Non-self-lock-ing button press and unclamp to its 3 end in contact after, U10A output rising edge
Level, the clock end CLK of double D flip-flop numbers modules is rising edge triggering, U10A output rising edge level, double D flip-flop numbers moulds
The clock end CLK of block is triggered for rising edge, and U11B is exported for high-order in Fig. 6, and U11A is exported for low level, and U11B, U11A are real successively
Existing 00,01,10,11 plus coujnt;
Its detailed process is that the logical function of d type flip flop is:Qn+1=D, 74LS74 are triggered for rising edge.So, in figure,
IN0=D0, IN1=D1, it is assumed that in an initial condition, the output of first, second d type flip flop are 0, i.e. A=0, B=0;Then
First, the inverse output terminal of the second d type flip flop is 1, i.e. IN0=1, IN1=1, thus first, second d type flip flop D ends state
It is D0=1, D1=1;When the output end of rest-set flip-flop Anti-shaking circuit namely the clock end CLK of the first d type flip flop become from 0 for the first time
When turning to 1, now U11A state changes are A=1, IN0=0, D0=0;IN0=0 causes that the clock end CLK of U11B is trailing edge
Pulse, therefore U11B states are unchanged, i.e. B=0, IN1=1, D1=1, now double D flip-flop numbers modules (from a high position to low level)
It is output as 01, i.e. B=0, A=1;
When the clock end CLK of the first d type flip flop becomes for second from 0 turns to 1, now U11A state changes are A=0, IN0
=1, D0=1;IN0=1 causes the clock end CLK of U11B for rising edge pulse, therefore U11B state changes are B=1, IN1=0,
D1=0, now double D flip-flop numbers modules (from a high position to low level) be output as 10, i.e. B=1, A=0;
When the clock end CLK third times of the first d type flip flop become from 0 turns to 1, now U11A state changes are A=1, IN0
=0, D0=0;IN0=0 causes that the clock end CLK of U11B is trailing edge pulse, therefore U11B states are unchanged, i.e. B=1, IN1=
0, D1=0, now double D flip-flop numbers modules (from a high position to low level) be output as 11, i.e. B=1, A=1;
When the clock end CLK of the first d type flip flop becomes for the 4th time from 0 turns to 1, now U11A state changes are A=0, IN0
=1, D0=1;IN0=1 causes the clock end CLK of U11B for rising edge pulse, therefore U11B state changes are B=0, IN1=1,
D1=1, double D flip-flop numbers modules (from a high position to low level) are output as 00, i.e. B=0, A=0, logical relation is returned to initially
State, thus reaches the effect of plus coujnt.
IN0, IN1 according to double D flip-flop numbers modules pass through data latches and the first relay, the company of the second relay
Connect circuit, it is known that, it is output as under 00 original state in double D flip-flop numbers modules, button is pressed next time, IN0=0, IN1=1
Make output port OUT1 connect photovoltaic interface to power, button presses secondary, IN0=1, IN1=0 makes output port OUT1 connect city
Electrical interface is powered, and button is pressed three times, IN0=0, and IN1=0 makes output port OUT1 connect photovoltaic interface and commercial power interface simultaneously
Power supply, button is pressed four times, returns to original state, and this is shutdown mode, now IN0=1, and IN1=1 makes photovoltaic interface and civil power
Interface is not for output port OUT1 powers.
The output state of the photovoltaic commercial power complementary combinations Logic control module of table one
In the present embodiment, the positive output of the first d type flip flop U11A and the second d type flip flop U11B of the double D trigger
End connection decoder U8, decoder U8 is using chip 74LS74, the low level input of the first d type flip flop U11A connection decoders U8
End, the high-order input of the second d type flip flop U11B connection decoders U8, decoder U8 exports double D flip-flop numbers modules
Binary code changes into the decimal system, and by numeral method, thus can show the touch potential of non-self-lock-ing button, thus points out
Corresponding output state.
In the present embodiment, the delay circuit is 555 delay trigger circuits, and the output end of the non-self-lock-ing button is connected
The TRIG ends of 555 triggers circuits, it is low level triggering, and timing is started after triggering, until the height electricity after non-self-lock-ing button unclamps
Put down after charging capacitor C13 is charged to certain voltage, the output end of 555 delay trigger circuits just exports low level, to trigger number
Exported according to latch cicuit 74HCT573, be achieved in time delay, the delay time of 555 delay trigger circuits by charging capacitor C13 and
Adjustable resistance R7 is realized jointly;
The accumulator cell charging and discharging compares control module includes being the sluggish ratio of the first voltage of in-phase voltage hysteresis comparator
Compared with device U14A and second voltage hysteresis comparator, the input in the same direction of first voltage hysteresis comparator U14A passes through first resistor R1
The anode of battery is connected, the first feedback resistance R2 is connected between its input in the same direction and output end, its reverse input end connects
Connect the first reference voltage VR1, its output end connection voltage-regulator diode ZD1, the input in the same direction of second voltage hysteresis comparator U14B
The anode of battery is connected by 3rd resistor R3, the second feedback resistance R4 is connected between its input in the same direction and output end,
Its reverse input end connects the second reference voltage VR2, its output end connection voltage-regulator diode ZD2, first reference voltage is by the
One adjustable DC electric power generating composition, the second reference voltage is by the second adjustable DC electric power generating composition;
The output end of first voltage hysteresis comparator U14A is by the compound transistor of positive-negative-positive (by PNP triode Q3, PNP
Triode Q4 is constituted) the magnet coil K3A of the 3rd relay of connection, it is connected in parallel on the after charging indicator light LED8 connection current-limiting resistances
The magnet coil K3A two ends of three relays, the contact of the 3rd relay is two-way switch K3B, and the normally-closed contact connection of K3B is overcharged
Charging input end mouthful IN1 two ends are attempted by after shut-off indicator lamp LED9, the normally opened contact of K3B is connected to charging input end mouthful IN1
To on the charge circuit of battery;The output end of second voltage hysteresis comparator U14B by the compound transistor of positive-negative-positive (Q5,
Q6 the magnet coil K4A of the 4th relay) is connected, is crossed after putting shut-off indicator lamp connection current-limiting resistance and is connected in parallel on the 4th relay
Magnet coil K4A two ends, the contact of the 4th relay is two-way switch K4B, and the normally-closed contact of K4B is connected to battery to load
Discharge loop on, the normally opened contact of K4B is hanging, and discharge indicating lamp LED11 connects the normally-closed contact and limit of the 4th relay
The two ends of battery are connected in parallel on after leakage resistance;
The voltage limit of visiting of first voltage hysteresis comparatorLower threshold voltageWherein VR1It is above-mentioned first reference voltage, VZIt is the voltage stabilizing value of voltage-regulator diode ZD1,
Make the voltage limit V that visitsp1=cross charge shutoff voltage 14.5V, lower threshold voltage Vp2=shut-off of charging recovers voltage 13.5, then can be with
Calculate the ratio and the first required reference voltage V of first resistor R1 and the first feedback resistance R2R1Numerical value;
In characteristic curve, the numerical value of regulation voltage-regulator diode ZD1 can make the characteristic curve of first voltage hysteresis comparator
Move up and down, the numerical value of voltage-regulator diode ZD1 takes can be such that characteristic curve moves to numerical value during output high level 1, low level 0;
Similarly, the voltage limit of visiting of second voltage hysteresis comparatorLower threshold voltageWherein VR2It is above-mentioned second reference voltage, VZIt is the voltage stabilizing value of voltage-regulator diode ZD2,
Make the voltage limit V that visitsp1=electric discharge shut-off recovers voltage 12V, lower threshold voltage Vp2=cross and put shut-off voltage 11V, then can calculate
Go out the ratio and the second required reference voltage V of 3rd resistor R3 and the second feedback resistance R4R2Numerical value;
Similarly, the numerical value of voltage-regulator diode ZD2 takes can make the characteristic curve of second voltage hysteresis comparator move high to output
Numerical value during level 1, low level 0;
The characteristic of voltage-regulator diode ZD1 is, when the output end of first voltage hysteresis comparator exports high level, to the height
Level carries out voltage stabilizing, when the output end of first voltage hysteresis comparator exports low level, does not produce shadow to the output low level
Ring, voltage-regulator diode ZD2 is similarly;
Thus it is possible to realize, when the terminal voltage of battery was less than charge shutoff voltage 14.5V, the sluggish ratio of first voltage
Low level is exported compared with device U14A, the low level turns on the compound transistor of positive-negative-positive, and specifically, low level makes PNP triode
Q3 is turned on, Q3 output low levels, turns on PNP triode Q4, and then electricity on the magnet coil K3A of the 3rd relay, then double
Disconnected to the normally-closed contact of switch K3B, make to overcharge shut-off indicator lamp LED9 and do not light, its normally opened contact closure, connect charge it is defeated
Chargings of the inbound port IN1 to battery, the upper electricity of K3A lights charging indicator light LED8, and this charged state is maintained to electric power storage
The terminal voltage in pond rises to charging shut-off voltage 14.5V;When the terminal voltage of battery reached charge shutoff voltage 14.5V, the
There is upset output high level in one voltage hysteresis comparator U14A, the high level ends the compound transistor of positive-negative-positive, specifically
It is that high level ends PNP triode Q3, Q3 output high level ends PNP triode Q4, then the electricity of the 3rd relay
Magnetic coil K3A does not go up electricity, and the normally opened contact of two-way switch K3B disconnects, and disconnects chargings of the output port OUT1 to battery, and its is normal
Closed contact is closed, and is made to overcharge shut-off indicator lamp LED9 and is lighted, and this charging off state is maintained to the terminal voltage drop of battery
Shut-off of as little as charging recovers voltage 13.5V;When the terminal voltage of battery is reduced to charging shut-off recovers voltage 13.5V, first
There is upset output low level in voltage hysteresis comparator U14A, switch to charged state.
Thus it is possible to realize, when the terminal voltage of battery was higher than that second voltage sluggishness compares when putting shut-off voltage 11V
Device U14B exports high level, and the high level ends the compound transistor of positive-negative-positive, and specifically, high level cuts PNP triode Q5
Only, Q5 outputs high level, ends PNP triode Q6, and then the magnet coil K4A of the 4th relay does not go up electricity, and K4B's is normally closed
The closing of contact, connects electric discharge of the battery to loading, and the normally-closed contact closure of K4B also lights discharge indicating lamp LED11, K4A
Do not go up electricity and made to put shut-off indicator lamp LED10 and do not light, this discharge condition put shut-off until the terminal voltage of battery is reduced to
Voltage 11V, when the terminal voltage of battery was reduced to puts shut-off voltage 11V, second voltage hysteresis comparator U14B is turned over
Low level is transferred out, the low level turns on compound transistor Q5, Q6 of positive-negative-positive, and specifically, low level makes PNP triode Q5
Conducting, Q5 output low levels, turns on PNP triode Q6, electricity, the normally-closed contact of K4B on the magnet coil K4A of the 4th relay
Disconnect, disconnect electric discharge of the battery to loading, the upper electricity of K4A also made to put and turns off indicator lamp LED10 and light, the disconnection of its normally-closed contact
Discharge indicating lamp LED11 is set not light, the terminal voltage that this electric discharge off state is maintained to battery rises to electric discharge shut-off
Recover voltage 12V;When the terminal voltage of battery reaches electric discharge shut-off recovers voltage 12V, second voltage hysteresis comparator U14B
Generation upset output high level, switchs to discharge condition.
First voltage hysteresis comparator U14A and second voltage hysteresis comparator U14B are supplied by three-terminal voltage regulator U13
Electricity, U13 may be implemented in voltage stabilizing in the case that input voltage changes using the input connection battery of chip LM317, LM317
Output, regulation RP5 can change the size of output voltage, and the output end VCC1 of LM317 connects first, second voltage hysteresis comparator
Positive power source terminal.
Accumulator cell charging and discharging compares the charging input end mouthful IN1 connection photovoltaic commercial power complementary combinations logic controls of control module
The output port OUT1 of module.OUT2 in Fig. 5 is battery to the electric discharge port of load.
Accumulator cell charging and discharging compares control module access between charging input end mouthful IN1 and battery prevents electric current reversely charging
Diode D0, prevent battery from being discharged to charging input end mouthful IN1.The anode of the 3rd relay is not connected to the anode of battery
But the anode of connection charging input end mouthful IN1, it is possible to reduce the power consumption of battery, more power saving.
The operation principle of in-phase voltage hysteresis comparator explained below.Fig. 6 is the circuit diagram of in-phase voltage hysteresis comparator,
Fig. 7 is the transmission characteristic figure of in-phase voltage hysteresis comparator, only when input voltage reaches the U upper limits, the sluggish ratio of in-phase voltage
High level is just exported compared with device, as long as hereafter input voltage does not drop to U lower limits and then continues to output high level, only works as input voltage
When dropping to U lower limits, in-phase voltage hysteresis comparator just overturns output low level, as long as hereafter input voltage is not risen on U
Limit then continues to output low level.
Fig. 8 is the transmission characteristic figure of first voltage hysteresis comparator U14A in the present embodiment, and it constitutes charge circuit, its
In, the U upper limits are 14.5V, and U lower limits are 13.5V.Fig. 9 is the transmission characteristic of second voltage hysteresis comparator U14B in the present embodiment
Figure, it constitutes discharge loop, and in figure, the U upper limits are 12V, and U lower limits are 11V.Following table two is the corresponding discharge and recharge shape of battery tension
State.
The corresponding charging and discharging state of the battery tension of table two
Battery | To load supplying | State description | Instruction state |
Less than 11V | 0V | Battery is crossed and puts shut-off | LED8、LED10 |
11~12V | 11~12V | Battery Guo Fang areas | LED8、LED11 |
12V | 12V | Battery is crossed and puts recovery point | LED8、LED11 |
12~13.5V | 12~13.5V | Battery is normally exported | LED8、LED11 |
13.5V | 13.5V | Accumulator super-charge recovery point | LED8、LED11 |
13.5~14.5V | 13.5~14.5V | Accumulator super-charge area | LED8、LED11 |
More than 14.5V | 14.5V | Accumulator super-charge is turned off | LED9、LED11 |
In the present embodiment, as shown in Figure 10, the battery tension is gathered and display module, and battery tension is gathered and aobvious
Show module for gathering the terminal voltage of battery and showing;Using A/D conversion chip ICL7107, it passes through voltage collection circuit
The two ends of battery are connected, in Fig. 10 as shown on the right, the sampled point Test_in of voltage sampling circuit connects voltage collection circuit
The high-order input of 31 pin of ICL7107 is connect, the output end of the ICL7107 is directly driven four LED charactrons, set by R29
Determine decimal point position, make indication range be ± 19.99, can then realize that the terminal voltage of the battery that nominal voltage is 12V shows.Four
Individual LED charactrons are common-anode LED charactrons.Test1 buttons press rear LED charactrons for detecting circuit signal integrality
Output character " 1888 ".
The 36 pin reference voltages of ICL7107 need to be by adjusting RP7 calibrations at 100 millivolts, and 27,28,29 pin are 0.22uF, 47k
The resistance-capacitance network of Ω, 0.47uF, is achieved in A/D conversion outputs.ICL7107 and LED charactrons constitute digital voltmeter.
As shown in Figure 11,12, power module includes double 15V power supplys, double 5V power supplys to the power module.Double 15V power supplys by
Civil power connects two three terminal regulator LM7815 after transformer, rectifier, filter capacitor, and+15V and -15V electricity is exported respectively
Source, when exporting normal, LED1 and LED2 are lighted, and have controlling switch S2 between rectifier and filter capacitor;Double 5V power supplys are by double 15V
Two three terminal regulator LM7805 are connected after ± 15V filtered the electric capacity of power supply that power supply is obtained ,+5V and -5V electricity is exported respectively
Source, when exporting normal, LED3 and LED4 are lighted, and have controlling switch S3 between ± 15V power supplys and filter capacitor.
12V batteries crosses charge shutoff voltage, charges with turning off and recover voltage, electric discharge shut-off voltage, electric discharge pass in the present invention
Disconnected recovery voltage is not limited only to 14.5V, 13.5V, 11V, 12V described in above-described embodiment, can adjust within the specific limits
It is whole.Such as, it is preferable that it can be 14.1~14.5V to cross charge shutoff voltage, shut-off of charging recover voltage can for 13.1~
13.5V, electric discharge shut-off voltage can be 10.8~11.5V, and it can be 11.5~12V that electric discharge shut-off recovers voltage.
Above-described embodiment is only enumerating for the technology of the present invention design way of realization, the protection being not intended to limit the invention
Scope, equivalent that all technology designs under this invention are made and improves etc., should be included in protection scope of the present invention it
It is interior.
Claims (5)
1. battery photovoltaic commercial power complementary combinations Logic control module, it is characterised in that:Including a non-self-lock-ing button, non-self-lock-ing is pressed
The excessively double D flip-flop numbers modules of push-to realize that the binary addition of touch potential is counted, and the output end of non-self-lock-ing button is also by prolonging
When circuit trigger data-latching circuit output, the output end of two d type flip flops of double D flip-flop numbers modules is all connected with the number
According to the data input pin of latch cicuit, a data output end of data-latching circuit connects the first relay by optical coupling isolation circuit
Device, the contact of the first relay can make output port OUT1 connect photovoltaic interface P1 chargings, another data of data-latching circuit
Output end connects the second relay by optical coupling isolation circuit, and the contact of the second relay can make output port connect commercial power interface
P2 charges, and the output end level of described pair of two d type flip flops of D flip-flop number modules can make output port OUT1 individually connect light
One of volt interface, commercial power interface charge and connection photovoltaic interface, commercial power interface charge simultaneously, and the light under shutdown mode
Volt interface, commercial power interface do not charge to output port;
Being connected between the photovoltaic interface P1 and output port prevents the first diode of electric current reversely charging, the commercial power interface P2
Being connected with and output port between prevents the second diode of electric current reversely charging, when photovoltaic interface P1 and commercial power interface P2 is simultaneously defeated
When exit port charges, the first diode can prevent commercial power charged its current flowing backwards when accounting for main to photovoltaic interface, the two or two pole
Pipe can prevent photovoltaic charged its current flowing backwards when accounting for main to commercial power interface, so as to prevent photo-voltaic power supply or mains supply from damaging
It is bad.
2. battery photovoltaic commercial power complementary combinations Logic control module as claimed in claim 1, it is characterised in that:Described couple of D
Flip-flop number module include cascade the first d type flip flop and the second d type flip flop, the first d type flip flop clock end connection described in press
The output end of key Anti-shaking circuit, the D ends of the first d type flip flop connect its inverse output terminal, and it is anti-that the D ends of the second d type flip flop connect its
To output end, the inverse output terminal of the first trigger connects the D ends of the second d type flip flop, and then constitute asynchronous clock two enter
Plus coujnt module processed, wherein the second trigger is exported for high-order, the first trigger is exported for low level;
The described pair of inverse output terminal connection of the inverse output terminal and the second d type flip flop of the first d type flip flop of D flip-flop number modules
The data-latching circuit, a data output end IN0_out of data-latching circuit passes through optical coupling isolation circuit and the poles of PNP tri-
Pipe Q1 connect the first relay, when data-latching circuit data output end IN0_out export low level when, by optocoupler every
PNP triode Q1 is turned on from circuit, electricity on the first relay, the normally opened contact closure of the first relay makes output port
OUT1 connection photovoltaic interfaces P1 charges;
Another data output end IN1_out of data-latching circuit connects second by optical coupling isolation circuit and PNP triode Q2
Relay, when the data output end IN1_out of data-latching circuit exports low level, PNP is made by optical coupling isolation circuit
Triode Q2 is turned on, electricity on the second relay, the normally opened contact closure of the second relay, output port OUT1 is connected civil power and is connect
Mouth P2 charges;
When the data output end IN0_out and data output end IN1_out of data-latching circuit U7 export low level, can
See, it can simultaneously drive electricity on the first relay and the second relay, make photovoltaic interface P1 and commercial power interface P2 be simultaneously defeated
Exit port OUT1 powers;
When the data output end IN0_out and data output end IN1_out of data-latching circuit U7 export high level, this is
Shutdown mode, photovoltaic interface and commercial power interface be not for output port OUT1 powers.
3. battery photovoltaic commercial power complementary combinations Logic control module as claimed in claim 1, it is characterised in that:Described couple of D
First d type flip flop of trigger and the positive output end connection decoder of the second d type flip flop, the first d type flip flop connection decoder
Low level input, the second d type flip flop connects the high-order input of decoder, and the decoder changes into the binary code of input
The decimal system, and by numeral method, the touch potential of non-self-lock-ing button thus can be shown.
4. the battery photovoltaic commercial power complementary combinations Logic control module as described in one of claim 1-3, it is characterised in that:Institute
Non-self-lock-ing button is stated for double-point double-throw switch S1, a plug-in strip of double-point double-throw switch S1 connects the input of button Anti-shaking circuit
End, another plug-in strip of double-point double-throw switch S1 connects the triggering end of delay circuit, and two plug-in strips linkage of double-point double-throw switch is double
The non-keying end ground connection of double-pole double throw switch S1;
The button Anti-shaking circuit is rest-set flip-flop Anti-shaking circuit, and the rest-set flip-flop Anti-shaking circuit connects structure by two NAND gates
After pressing and unclamp into, the double-point double-throw switch S1, the output end of rest-set flip-flop Anti-shaking circuit passes through rising edge level triggers
Described pair of D flip-flop numbers module is started working, and the first d type flip flop of double D flip-flop numbers modules, the second d type flip flop are rising
Along level triggers;
The delay circuit uses 555 delay trigger circuits, and it is low level triggering trigger, until non-self-lock-ing button unclamps
After high level afterwards makes charging capacitor C13 charge to certain voltage, the output end of 555 delay trigger circuits just exports low level,
With trigger data latch cicuit output data, the delay time of 555 delay trigger circuits can adjust its charging capacitor C13 and adjustable
Resistance R7 is realized.
5. battery photovoltaic commercial power complementary combinations Logic control module as claimed in claim 1, it is characterised in that:The time delay
Circuit uses chip NE555, data-latching circuit to use chip 74HC573, double D trigger to use chip 74LS74, decoder
Using chip 74LS47.
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CN201621204853.8U CN206272264U (en) | 2016-11-08 | 2016-11-08 | Battery photovoltaic commercial power complementary combinations Logic control module |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019000187A1 (en) * | 2017-06-26 | 2019-01-03 | 吴浩 | Electronic switch control circuit for solar-powered lighting system, and control method thereof |
CN112019207A (en) * | 2020-09-07 | 2020-12-01 | 中航华东光电有限公司 | High-temperature-resistant isolation grid drive circuit suitable for fire-fighting equipment |
CN114035063A (en) * | 2021-12-13 | 2022-02-11 | 中国核动力研究设计院 | Voltage monitoring device for reactor storage battery pack |
-
2016
- 2016-11-08 CN CN201621204853.8U patent/CN206272264U/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019000187A1 (en) * | 2017-06-26 | 2019-01-03 | 吴浩 | Electronic switch control circuit for solar-powered lighting system, and control method thereof |
CN112019207A (en) * | 2020-09-07 | 2020-12-01 | 中航华东光电有限公司 | High-temperature-resistant isolation grid drive circuit suitable for fire-fighting equipment |
CN114035063A (en) * | 2021-12-13 | 2022-02-11 | 中国核动力研究设计院 | Voltage monitoring device for reactor storage battery pack |
CN114035063B (en) * | 2021-12-13 | 2024-04-30 | 中国核动力研究设计院 | Voltage monitoring device for reactor storage battery pack |
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