CN107592700A - A kind of photovoltaic MPPT types constant current integrated street lamp controller circuitry - Google Patents
A kind of photovoltaic MPPT types constant current integrated street lamp controller circuitry Download PDFInfo
- Publication number
- CN107592700A CN107592700A CN201710815103.7A CN201710815103A CN107592700A CN 107592700 A CN107592700 A CN 107592700A CN 201710815103 A CN201710815103 A CN 201710815103A CN 107592700 A CN107592700 A CN 107592700A
- Authority
- CN
- China
- Prior art keywords
- circuit
- switch mosfet
- mosfet pipe
- signal
- buck
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
Abstract
A kind of photovoltaic MPPT types constant current integrated street lamp controller circuitry, its main circuit are made up of BOOST/BUCK integral circuitries, street lamp series circuit, photovoltaic battery panel series circuit and battery series circuit.Street lamp series circuit is in parallel with photovoltaic battery panel series circuit, is connected with the input of BOOST/BUCK integral circuitries.Daytime, main circuit was operated in BUCK patterns, and photovoltaic battery panel series circuit participates in work；Night main circuit is operated in BOOST patterns, and street lamp series circuit participates in work；Photovoltaic battery panel series circuit daytime, the power supply as main circuit, was that battery charges by BOOST/BUCK integral circuitries, night cuts off out circuit.Load of the street lamp series circuit night as main circuit, power supply of the battery as main circuit, powered by BOOST/BUCK integral circuitries for street lamp series circuit, cut off out circuit daytime.
Description
Technical field
The present invention relates to a kind of controller for road lamp circuit.
Background technology
Photovoltaic energy can not be substituted under many extreme terrains, occasion by other Energy situations.In scarcities such as mountain areas
Area, photovoltaic street light controller product can be full in the case where exempting cable laying, transformation device being set up, transformer station builds
Sufficient night lighting demand.
Current controller for road lamp topology is typically mostly BUCK, BOOST divided mode.Photovoltaic module is by BUCK circuits
Battery is charged, and night battery is powered by BOOST circuits for LED street lamp.This integrated circuit topology is than more visible, but device
Part is more, complicated, and the area of pcb board is larger, and cost is higher, and miniaturization for product, densification are unfavorable.Due to
Charge and discharge use diode continuousing flow, and efficiency is than relatively low.Device acts on more single, the devices use rate in projected life
Not high, i.e. BUCK circuits and BOOST circuits is two completely self-contained parts, and the device in main circuit is in two kinds of different patterns
Under, necessarily some is in idle state.Daytime, main circuit are operated in BUCK patterns, and photovoltaic cell board component passes through BUCK
Charged a battery after circuit decompression, BOOST circuits are in idle state；Night, main circuit are operated in BOOST patterns, electric power storage
Street lamp power supply, road lamp power supply is given in pond after being boosted by BOOST circuits, and BUCK circuits are in idle state.So no matter which kind of main circuit is operated in
Under pattern, the waste of device is all caused.
The content of the invention
The purpose of the present invention is to overcome the shortcomings that prior art efficiency is relatively low, device cost is higher, proposes one
Kind photovoltaic MPPT type constant current integrated street lamp controller circuitrys.
The present invention by BOOST circuits with BUCK is circuit integrated is integrated.The input of BOOST circuits is BUCK circuits
Output end；The output end of BOOST circuits is the input of BUCK circuits.Under different operational modes, electric current is in the same circuit
The flowing of different directions is carried out, to realize the illumination of the charging of battery or street lamp.Under BUCK patterns, photovoltaic cell board component
By integral circuitry, charged for battery；Under BOOST patterns, battery provides electric energy by integral circuitry for street lamp.
The present invention includes main circuit and serves each function module circuit of main circuit.
The present invention main circuit by BOOST/BUCK integral circuitries, street lamp series circuit, photovoltaic battery panel series circuit and
Battery series circuit forms.
Described street lamp series circuit is in parallel with photovoltaic battery panel series circuit, the positive and negative electrode of the parallel branch with
The input of BOOST/BUCK integral circuitries is connected.Daytime, main circuit are operated in BUCK patterns, photovoltaic battery panel series circuit ginseng
With work, its positive and negative electrode is connected with the input of BOOST/BUCK integral circuitries；Night, main circuit are operated in BOOST patterns,
Street lamp series circuit participates in work, and its positive and negative electrode is connected with the input of BOOST/BUCK integral circuitries.
Photovoltaic battery panel series circuit daytime, the power supply as main circuit, was battery by BOOST/BUCK integral circuitries
Charging, night cut off out circuit, are not involved in work.Load of the street lamp series circuit night as main circuit, battery is as master
The power supply of circuit, powered by BOOST/BUCK integral circuitries for street lamp series circuit, cut off out circuit daytime, be not involved in work
Make.
Battery series circuit and BOOST/BUCK integral circuitries are in parallel, the positive and negative electrode port point of battery series circuit
Positive and negative electrode not with BOOST/BUCK integral circuitry output ends is connected, and daytime is electric power storage by photovoltaic photovoltaic battery panel series circuit
Pond series circuit charging, night battery series circuit are powered as power supply for street lamp series circuit.
The present invention BOOST/BUCK integral circuitries and the difference of typical BUCK circuits be：Partly led using the switch with copped wave
Body device identical device MOSFET substitutes the diode in typical BUCK circuits.
Each function module circuit that the present invention serves main circuit includes：Control circuit, power-supplying circuit, voltage sample
Circuit, current sampling circuit, external temperature sample circuit, drive circuit, LED indicating circuit and IR signal reception send electricity
Road.
Annexation between each circuit is：
The input of power-supplying circuit is in parallel with battery series circuit, the positive and negative electrode and BOOST/ of the parallel branch
The output end of BUCK integral circuitries is connected.Power-supplying circuit will after the voltage step-down of battery series circuit, be charging current
Sample circuit, load current sample circuit, input voltage state sample circuit, load voltage sample circuit, battery voltage sampling
Circuit, drive circuit, control circuit, external temperature sample circuit, IR signal reception transtation mission circuit, LED indicating circuit power supply,
I.e. power-supplying circuit obtains electric energy from battery series circuit connected in parallel, as the power supply of each functional module, makes each
Functional module is coupled main circuit partial service.
The input of input voltage state sample circuit is connected to photovoltaic battery panel series circuit, the sampling of input voltage state
The output end of circuit is connected to the signal input tube pin of the single-chip microcomputer of control circuit.Input voltage state sample circuit detects photovoltaic
Whether cell panel is reversed, and in the case of connection is correct, if it is reached for the voltage of battery charging, the signal that will be detected
Single-chip microcomputer is transferred to be judged.
The input of battery voltage sampling circuit is connected to battery series circuit, the output end of battery voltage sampling circuit
It is connected to the signal input tube pin of the single-chip microcomputer of control circuit, the voltage at collection battery series circuit both ends, and by collection
Voltage signal is transferred to single-chip microcomputer and calculated.
The input of load voltage Acquisition Circuit is connected to street lamp series circuit, and the output end of load voltage Acquisition Circuit connects
The signal input tube pin of the single-chip microcomputer of control circuit, the voltage at collection street lamp both ends are connected to, and the voltage signal of collection is transmitted
Calculated to single-chip microcomputer.
The input of charge current sample circuit is connected to photovoltaic battery panel series circuit.Charge current sample circuit it is defeated
Go out the signal input tube pin that end is connected to the single-chip microcomputer of control circuit, collection photovoltaic cell board component on daytime is battery charging
Electric current, and transmit a signal to single-chip microcomputer and calculated.
The input of load current Acquisition Circuit is connected to street lamp series circuit, and the output end of load current Acquisition Circuit has
3, the first output end is connected to the signal input tube pin of the single-chip microcomputer of control circuit, and load current signal is transferred into monolithic
Machine；Second output end is connected to the over-current signal input pin of the single-chip microcomputer of control circuit, when electric current exceedes setting value, to list
Piece machine output signal is alarmed；3rd output end is connected directly to the grid of the semiconductor switch device of load in series circuit,
When electric current exceedes setting value, semiconductor switch device is turned off, street lamp is cut out from main circuit.
The temperature signal that the output end of external temperature sample circuit is connected to control circuit single-chip microcomputer corresponds to pin.By power supply
The voltage that power supply circuit provides is as power supply.External temperature sample circuit is connected group by a NTC resistance with a conventional, electric-resistance
Into the signal of external temperature sample circuit output is the voltage at NTC resistance both ends, and NTC is calculated according to electric resistance partial pressure principle
Resistance value, environment temperature is then calculated according to the resistance value in " NTC specifications " and the corresponding relation of temperature value.NTC electricity
The resistance of resistance changes with temperature change, thus detects ambient temperature, and transmit a signal to single-chip microcomputer.
Drive circuit is divided into five tunnels, drives switch mosfet pipe Q1, Q2, Q3, Q4 and Q5 in main circuit respectively：
First via drive circuit is switch mosfet pipe Q1 drive circuits, in corresponding classical BOOST circuit topologies
MOSFET drive circuit.The drive signal of the input of the road drive circuit and the single-chip microcomputer of control circuit sends pin phase
Even, the grid of the switch mosfet pipe Q1 in output end connection BOOST/BUCK integral circuitries, under BOOST patterns, by monolithic
The pwm signal that machine is sent passes to switch mosfet pipe Q1, and provides and open, turn off energy needed for switch mosfet pipe Q1, with
Realize the operation of BOOST circuits.
No. second drive circuit is switch mosfet pipe Q2 drive circuits, the MOSFET in corresponding classical BUCK circuit topologies
Switching tube Q2 drive circuit.The drive signal of the input of the drive circuit and the single-chip microcomputer of control circuit sends pin phase
Even, the grid of the switch mosfet pipe Q2 in the output end connection BOOST/BUCK integral circuitries of drive circuit, in BUCK patterns
Under, the pwm signal that single-chip microcomputer is sent passes to switch mosfet pipe Q2, and provides and open, turn off switch mosfet pipe Q2 institutes
Energy is needed, to realize the operation of BUCK circuits.
No. threeth drive circuit is switch mosfet pipe Q3 drive circuits, drives and oad freewheels are controlled in main circuit
Switch mosfet pipe Q3.The input of the road drive circuit sends pin with the drive signal of the single-chip microcomputer of control circuit and is connected,
Output end is connected to this switch mosfet pipe Q3 grid, and the high and low level signal that single-chip microcomputer is sent passes to MOSFET and opened
Close pipe Q3, and provide switch mosfet pipe Q3 open, turn off needed for energy, with realize street lamp is put into, cut out main circuit move
Make.
No. fourth drive circuit is switch mosfet pipe Q4 drive circuits, drives and photovoltaic cell board component is controlled in main circuit
The switch mosfet pipe Q4 of afterflow.The drive signal of the input of the road drive circuit and the single-chip microcomputer of control circuit sends pin
It is connected, output end is connected to this switch mosfet pipe Q4 grid, and the high and low level signal that single-chip microcomputer is sent passes to
Switch mosfet pipe Q4, and provide switch mosfet pipe Q4 open, turn off needed for energy, with realize photovoltaic cell board component is thrown
Enter, cut out the action of main circuit.
No. fiveth drive circuit is switch mosfet pipe Q5 drive circuits, and battery afterflow is controlled in circuit drives main circuit
Switch mosfet pipe Q5, the input of the road drive circuit is connected with the positive pole of battery, and output end is connected to this MOSFET
Switching tube Q5 grid.When main circuit positive bus voltage is relatively low, switch mosfet pipe Q5 is turned off, battery is cut off into out master
Circuit, prevent that battery discharging is too deep.
LED indicating circuit one shares three groups, the inputs of three groups of LED indicating circuits respectively with the single-chip microcomputer in control circuit
Corresponding three pins are connected, to the working condition of user's display circuit.
IR signal reception transtation mission circuit, which is divided into, sends and receives two parts.The input of receiving circuit is corresponding with single-chip microcomputer
Signal send pin connection, export infrared signal, be to user hand-held terminal device send controller for road lamp data.Hair
The output end on power transmission road signal corresponding with single-chip microcomputer receives pin connection, inputs infrared signal, receives the handheld terminal of user
The infrared signal that equipment sends over, is controlled to controller for road lamp.
The input of control circuit and voltage sampling circuit, current sampling circuit, external temperature sample circuit, infrared signal
The output end for receiving the circuit modules such as transtation mission circuit is connected.The output end of control circuit sends electricity with drive circuit, infrared signal
The input of the circuit modules such as road, LED indicating circuit is connected.Control circuit is carried out to the voltage, electric current, temperature data that collect
Calculating processing, storage, control the mode of operation of main circuit, send protection signal in time in case of a fault, hand-held with outside
Terminal device carries out data exchange.
The course of work of the present invention is daytime, and photovoltaic battery panel series circuit produces electric energy, BUCK circuit starts, to store
Battery charges, and detects the data such as the voltage of photovoltaic battery panel series circuit, electric current.Under abnormal condition, such as overvoltage, electricity
Situations such as anti-is crimped, photovoltaic battery panel series circuit is protected.Night, battery charging circuit are given by BOOST circuits
Street lamp series circuit is powered, and detects the data such as the voltage of street lamp series circuit, electric current, is satisfied the need when excessively stream, overvoltage
Lamp series circuit is protected.
The present invention is made BUCK circuits share inductance, electric capacity and MOSFET with BOOST circuits and opened using circuit, device property
Guan Guan, by the conducting and shut-off of switch mosfet pipe in photovoltaic battery panel series circuit and street lamp series circuit, switch electric power storage
The loop of pond charge and discharge, complete work of the BOOST/BUCK integral circuitries under BUCK and BOOST different modes.Do not punish
In which kind of pattern, the utilization rate of main circuit device is higher, and device free time is few.In number of devices such as inductance, electric capacity, MOSFET
In the case of reduction, the size of circuit board also reduces therewith, and the space availability ratio of interiors of products is bigger, and overall dimensions have contracted
Subtract.The overall miniaturization of product, not only has more advantage, cost of transportation also decreases, in the feelings that load-carrying is constant in terms of cost
Under condition, more products can be transported.And in customer set-up product, the requirement for infield is also lower.In service life
Interior, MOSFET is smaller than the conduction loss of diode, can improve efficiency.
Therefore, present invention saves the cost of device.Cut using MPPT mode of operation, and using MOSFET
The afterflow of ripple, electric current, in terms of software and hardware two, promote the more efficient of circuit jointly, also make the generating of photovoltaic battery panel
Efficiency maximizes.
Brief description of the drawings
Fig. 1 a are conventional road lamp controller main circuit block diagram；
Fig. 1 b are MPPT types constant current integrated street lamp controller main circuit block diagram of the present invention；
Fig. 2 is main circuit schematic diagram of the present invention；
Fig. 3 is each circuit relationships block diagram；
Fig. 4 is power circuit principle figure；
Fig. 5 is detection circuit for voltage state schematic diagram；
Fig. 6 is voltage sampling circuit schematic diagram；
Fig. 7 is load current sample circuit schematic diagram；
Fig. 8 charge current sample circuit theory diagrams；
Fig. 9 external temperature sample circuit schematic diagrams；
Figure 10 driver circuit schematic diagrams；
Figure 11 driver circuit schematic diagrams；
Figure 12 driver circuit schematic diagrams；
Figure 13 LED indicating circuit schematic diagrams；
Figure 14 IR signal reception transtation mission circuit schematic diagrams；
Figure 15 control circuit schematic diagrams.
Embodiment
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
As shown in Figure 1 b, the present invention by BOOST circuits with BUCK is circuit integrated is integrated.The input of BOOST circuits is
For the output end of BUCK circuits；The output end of BOOST circuits is the input of BUCK circuits.BOOST/BUCK integral circuitries exist
Under BUCK patterns, flow of electrical power direction is shown in black arrows, and BOOST/BUCK is flowed into from photovoltaic battery panel series circuit
The input of integral circuitry, charged by BUCK circuits for battery.Under BOOST patterns, flow of electrical power direction is that black is empty
Shown in heart arrow, BOOST/BUCK integral circuitries are flowed into from battery series circuit, are street lamp series circuit by BOOST circuits
Power supply.The Energy devices such as inductance, electric capacity are effectively utilized in both modes.And it is the MOSFET of street lamp afterflow, is
The MOSFET of photovoltaic cell board component afterflow, for battery afterflow MOSFET than two poles in the classical circuit shown in Fig. 1 a
The pressure drop of tubing device is low, conduction loss is small, can effectively utilize electric energy.MOSFET can basis as controllable devices, during failure
Need fast shut-off circuit, protection equipment.Battery is also achieved from the conversion for loading to power supply under the switching of both of which.
As shown in Fig. 1 b, Fig. 3, the present invention includes main circuit and serves each function module circuit of main circuit：Control electricity
Road 101, charge current sample circuit 102, load current sample circuit 103, input voltage state sample circuit 104, load electricity
Press sample circuit 105, battery voltage sampling circuit 106, external temperature sample circuit 107, LED indicating circuit 108, infrared signal
Receive transtation mission circuit 109, drive circuit 110,111,112,113,114, and power circuit 115.
As shown in Fig. 2 main circuit is by photovoltaic battery panel series circuit, street lamp series circuit, BOOST/BUCK integral circuitries
Formed with battery series circuit.Described street lamp series circuit is in parallel with photovoltaic battery panel series circuit, the parallel branch
Positive and negative electrode is connected with the input of BOOST/BUCK integral circuitries.Daytime, main road are operated in BUCK patterns, photovoltaic battery panel string
Join circuit and participate in work, its positive and negative electrode is connected with the input of BOOST/BUCK integral circuitries；Night, main circuit are operated in
BOOST patterns, street lamp series circuit participate in work, and its positive and negative electrode is connected with the input of BOOST/BUCK integral circuitries.
Battery series circuit and BOOST/BUCK integral circuitries are in parallel, the positive and negative electrode port point of battery series circuit
Positive and negative electrode not with BOOST/BUCK integral circuitry output ends is connected, and daytime is electric power storage by photovoltaic photovoltaic battery panel series circuit
Pond series circuit charging, night battery series circuit are powered as power supply for street lamp series circuit.
The input parallel connection street lamp series circuit and photovoltaic battery panel series circuit of BOOST/BUCK integral circuitries.
Photovoltaic battery panel series circuit is connected by photovoltaic cell board component, switch mosfet pipe Q4 and the second detection resistance R2
Composition.The positive pole of the positive pole of photovoltaic battery panel series circuit, i.e. photovoltaic battery panel, connect BOOST/BUCK integral circuitry inputs
Positive pole.The negative pole connection switch mosfet pipe Q4 of photovoltaic cell board component source electrode, switch mosfet pipe Q4 drain electrode connection
To the second detection resistance R2 one end.The second detection resistance R2 other end is negative with the input of BOOST/BUCK integral circuitries
Extremely it is connected.
Street lamp series circuit is composed in series by street lamp, switch mosfet pipe Q3, the first detection resistance R1.Street lamp series circuit
Positive pole, i.e. street lamp positive pole, connect BOOST/BUCK integral circuitry inputs positive pole.The negative pole connection MOSFET of street lamp is opened
Close pipe Q3 source electrode.Switch mosfet pipe Q3 drain electrode, connect the first detection resistance R1 one end.First detection resistance R1's is another
One end is connected with the negative pole of the input of BOOST/BUCK integral circuitries.
The just extremely switch mosfet pipe Q2 source electrode of BOOST/BUCK integral circuitry inputs, switch mosfet pipe Q2's
Drain electrode connection switch mosfet pipe Q1 source electrode.The negative pole of BOOST/BUCK integral circuitries is switch mosfet pipe Q1 drain electrode.
First capacitance group C1 positive pole is connected to the source electrode of the positive pole, i.e. switch mosfet pipe Q2 of BOOST/BUCK integral circuitries.First
Capacitance group C1 negative pole is connected to the drain electrode of the negative pole of BOOST/BUCK integral circuitries, i.e. switch mosfet pipe Q1.Energy storage inductor L
One end be connected with switch mosfet pipe Q1 source electrode, the energy storage inductor L other end connects the second capacitance group C2 positive pole.Second
Capacitance group C2 negative pole connection switch mosfet pipe Q1 drain electrode.Second capacitance group C2 positive pole is as BOOST/BUCK one electricity
The positive pole of the output end on road, connect the positive pole of battery series circuit；Second capacitance group C2 negative pole is as BOOST/BUCK mono-
The negative pole of body circuit output end, connects the drain electrode of switch mosfet pipe Q5 in battery series circuit, and Q5 source electrode is connected to electric power storage
The negative pole in pond.
The output end of power-supplying circuit 115 respectively with control circuit 101, charge current sample circuit 102, load current
Sample circuit 103, input voltage state sample circuit 104, load voltage sample circuit 105, battery voltage sampling circuit 106,
External temperature sample circuit 107, LED indicating circuit 108, IR signal reception transtation mission circuit 109, switch mosfet pipe Q1 drivings
Circuit 110, switch mosfet pipe Q2 drive circuits 111, switch mosfet pipe Q3 drive circuits 112, switch mosfet pipe Q4 drive
Dynamic circuit 113, the power port of switch mosfet pipe Q5 drive circuits 114 are connected.
The output voltage of battery series circuit is converted to two voltage class of 11.4V and 3.3V by power-supplying circuit.
The voltage for the 11.4V that first order power circuit provides is switch mosfet pipe Q1 drive circuits 110, switch mosfet pipe Q2 drives
Circuit 111, switch mosfet pipe Q3 drive circuits 112 and switch mosfet pipe Q4 drive circuits 113 provide driving voltage.Second
The voltage for the 3.3V that level power supply circuit provides is to control circuit 101, charge current sample circuit 102, load current sample circuit
103, input voltage state sample circuit 104, load voltage sample circuit 105, battery voltage sampling circuit 106, external temperature
Sample circuit 107, LED indicating circuit 108 and IR signal reception transtation mission circuit 109 are powered.
As shown in Figure 4, there is provided in the first order power circuit of 11.4V voltages, battery series circuit is unstable voltage
Power supply, the positive pole of battery series circuit are connected with counnter attack diode D10 anode, counnter attack diode D10 negative electrode and electric capacity
C18 one end, resistance R29 one end, and triode Q8 colelctor electrode are connected.Electric capacity C18 is another to be connected to GND, preliminary steady
After pressure, the resistance R29 other end is connected with the negative electrode of triode Q8 base stage and voltage-stabiliser tube DZ2, and biasing is provided for triode Q8
Electric current, so as to turn-on transistor.Voltage-stabiliser tube DZ2 anode is connected to GND, stabilized base voltage.Electric capacity C16 and voltage-stabiliser tube DZ2
It is connected in parallel, electronic filter circuit is formed with triode Q8, using triode Q8 amplification, in triode Q8 transmitting
Pole obtains the filter effect of multiplication factor.
The second level power circuit for providing 3.3V voltages uses the 11.4V of first order circuit output as power supply, in wide model
Input Voltage stabilizing module VR1 input side parallel filtering electric capacity C19 is enclosed, after decompression, in wide scope input Voltage stabilizing module VR1 output
Side parallel filtering electric capacity C20, by output voltage stabilization in 3.3V.
As shown in figure 5, input voltage state sample circuit 104 is made up of diode, optocoupler and resistor in series, light is gathered
Lie prostrate the voltage of cell panel series circuit input.When photovoltaic battery panel series circuit voltage class exceedes predetermined voltage threshold,
Triode ON inside optocoupler U20, optocoupler U20 the 4th pin PA11 become low level by high level, and this signal is transferred to control
Circuit 101 processed, to judge whether to start BUCK circuits.One group of counnter attack detection circuit of photovoltaic battery panel input reverse parallel connection, when
Photovoltaic battery panel is reversed and when reaching preset voltage value, the triode ON inside optocoupler U21, optocoupler U21 the 4th pin PA12
Low level is become by high level, this signal feeds back to control circuit 101, and whether both positive and negative polarity is reversed to judge cell panel.
Load voltage sample circuit 105 is identical with the circuit topology of battery voltage sampling circuit 106, as shown in Figure 6.Load
Voltage sampling circuit 105 uses series resistance partial pressure form with battery voltage sampling circuit 106, is dropped in two resistance ratios
Low sample amplitude when reproduced, to detect the voltage at battery series circuit both ends and street lamp series circuit both ends, and voltage signal is passed
Pass control circuit.Voltage sampling circuit output end shunt capacitance C29, to filter.
Load current detection circuit 103 is made up of differential amplifier circuit and positive comparator, as shown in fig. 7, differential amplification
The output of circuit is connected with the in-phase input end of positive comparator.Night, differential amplifier circuit are operated in BOOST patterns, main electricity
Switch mosfet pipe Q3, Q5 in road is in the conduction state.Main circuit low resistance shown in Fig. 2 is flowed through for the electric current of street lamp power supply, road lamp power supply
The first detection resistance R1, according to Ohm's law, current signal is converted into small voltage signal by the first detection resistance R1,
Small voltage signal Vin caused by one detection resistance R1 both ends delivers to load current detection circuit 103, by by operational amplifier
After U6A, resistance, the differential amplifier circuit of electric capacity composition amplify 15 times, exported from operational amplifier U6A the 1st pin, difference is put
Big circuit output voltage VOUTControl circuit 101 is transferred to, carries out calculation process.Multiplication factor calculation formula is as follows：
∵R52=R53,R51=R57
And
Wherein, VINFor by voltage signal caused by the load current of sampling resistor；
VOUTFor the V of differential amplifier circuit output voltage, i.e., 15 timesIN；
VGNDFor the reference ground in circuit, 0 level；
R51,R52,R53,R55,R57To participate in the resistance of computing in Fig. 7 differential amplifier circuits.
Meanwhile this signal VOUTContinue to pass to the in-phase input end of follow-up positive comparator, positive comparator is by resistance
R54, R56 and operational amplifier U6B compositions, resistance R54 and R56 composition series connection bleeder circuit, the connection midpoint of two resistance is connected to
Operational amplifier U6B inverting input.The voltage threshold of positive comparator is two divider resistance R54, R56 connection midpoints
Magnitude of voltage.As differential amplifier circuit output voltage VOUT, more than positive comparator predetermined threshold value when, the output of positive comparator
PA6 becomes high level, is transferred to control circuit 101, is monitored and further operates.The output end of positive comparator passes through
Resistance R62 is connected to triode Q7 base stage, triode Q7 conductings, the drive signal Q3_Drive electricity of the MOSFET corresponding to street lamp
Horizontal drawing as little as GND, makes MOSFET be off state.Street lamp is cut off into out main circuit.
Charging current detecting circuit 102 is made up of low-pass filter circuit, buffer circuit, as shown in figure 8, low-pass filter circuit
Output be connected with the in-phase input end of buffer circuit.It is defeated that charging current detecting circuit 102 gathers photovoltaic battery panel series circuit
Enter the operating current of the charging current at end, i.e. BUCK circuits.The method of use is identical with load current detection circuit, i.e., in BUCK
Second detection resistance R2 of one low resistance of series connection in main circuit.When BUCK circuits charge to battery series circuit,
MOSFET Q4 are in the conduction state, and electric current produces voltage signal by the second detection resistance R2, delivers to charging current detecting circuit
102, resistance R58 and electric capacity C37 parallel connections are followed by operational amplifier U7A the 1st and 2 pins, form active low-pass filter circuit,
Signal is passed to control circuit 101 and carry out computing and processing by signal output to buffer circuit, buffer circuit again.
As shown in figure 9, external temperature sample circuit 107 is by high precision test resistance R20 and NTC resistance R23 series connection groups
Into, it is electric resistance partial pressure structure, the 3.3V voltages progress partial pressure provided second level power circuit.
NTC resistance is negative temperature coefficient thermistor, and its resistance value rises with temperature and exponentially reduced.Utilize this
Characteristic, NTC resistance both end voltages are measured by external temperature sample circuit, this voltage signal values is passed into control circuit 101
Afterwards, according to electric resistance partial pressure principle, the single-chip microcomputer of control circuit 101 calculates NTC resistance value by program, then according to " NTC
The corresponding relation of resistance value and temperature value in specifications " calculates respective environment temperature, is monitored and protects.
5 drive circuits：Switch mosfet pipe Q1 drive circuits 110, switch mosfet pipe Q2 drive circuits 111,
Switch mosfet pipe Q3 drive circuits 112, switch mosfet pipe Q4 drive circuits 113, switch mosfet pipe Q5 drive circuits 114
5 switch mosfet pipes of main circuit are driven respectively.
As shown in Figure 10, switch mosfet pipe Q1 drive circuits 110, switch mosfet pipe Q2 drive circuits 111 use IR
The driving chip IR2110S of company, it has two independent gate drivers, can export 2 road pwm signals respectively and provide
Drive energy needed for MOSFET.When control circuit sends PWM ripple PA8, the output mos FET of switch mosfet pipe Q2 drive circuits 111
Switching tube Q2 drive signal HO works as PWM to driving resistance R32, driving resistance R32 to be connected with switch mosfet pipe Q2 grid
When ripple PA8 is high level, switch mosfet pipe Q2 is opened, and when PWM ripples PA8 is low level, switch mosfet pipe Q2 is closed.When
When control circuit sends PWM ripple PA7, the output mos FET switch pipe Q1 of switch mosfet pipe Q1 drive circuits 110 drive signal
To resistance R39 is driven, driving resistance R39 is connected LO with switch mosfet pipe Q1 grid, when PWM ripples PA7 is high level,
Switch mosfet pipe Q1 is opened, and when PWM ripples PA7 is low level, switch mosfet pipe Q1 is closed.
As shown in figure 11, the switch mosfet pipe Q5 in battery series circuit is self-driven using bus level, MOSFET
Switching tube Q5 drive circuits 114 are using two resistance R36, R38 series connection partial pressure forms.Resistance R36 one end and battery are just
Pole B+ connections, the other end are connected to switch mosfet pipe Q5 grid with resistance R38, and resistance the R38 other end and MOSFET are opened
Close pipe Q5 drain electrode connection, the negative pole Bat- connections of switch mosfet pipe Q5 source electrode and battery.No matter battery, which is in, is appointed
What state, when the positive bus voltage of battery reaches given threshold, resistance R36, R38 partial pressure that busbar voltage passes through series connection
Afterwards, switch mosfet pipe Q5 is turned on.Between switch mosfet pipe Q5 grid and drain electrode, i.e. a R38 both ends voltage stabilizing in parallel
Pipe DZ3, to be protected to MOSFET.
Drive circuit 112 is responsible for the switch mosfet pipe in turn-on and turn-off street lamp series circuit, and drive circuit 113 is responsible for
Switch mosfet pipe in turn-on and turn-off photovoltaic battery panel series circuit.Drive circuit 112 is identical with 113 circuit topology,
By taking drive circuit 113 as an example, as shown in figure 12.Due to switching speed that need not be very fast, therefore use the form of push-pull circuit
Switch mosfet pipe Q4 is driven.When drive signal PB1 is low level, Q18 is NPN triode, is off state, is surveyed
Pilot T1 current potential, due to pull-up resistor R1 effect, in high level state.Q19 is NPN triode, base stage, i.e. test point
T1, it is high level, in the conduction state, Q20 is PNP type triode, and base stage is high level, in cut-off state.Now Q19 and
The junction of Q20 emitter stages is high level, and switch mosfet pipe Q4 grid, switch mosfet pipe Q4 grid are connected to by resistance R2
High level conducting.The process of switch mosfet pipe Q4 shut-offs is then conversely, drive signal PB1 is high level, switch mosfet pipe
Q4 grids are then closed for low level.Switch mosfet pipe Q3 on, off principle is identical with above-mentioned switch mosfet pipe Q4.
LED indicating circuit 108 is composed in series by LED and current-limiting resistance, and LED anode is connected to 3.3V power supplys, LED negative electrode
It is connected with current-limiting resistance, the other end of current-limiting resistance is connected with the control pin of control circuit 101.As shown in figure 13, street lamp, storage
Battery, the LED indicating circuit operation principle of photovoltaic battery panel are identical, by taking the LED indicating circuit of street lamp as an example, work as control circuit
When 101 control signal PB1 is low level, lamp condition indicator lamp D1 is lighted, when the control signal PB1 of control circuit 101 is
During high level, lamp condition indicator lamp D1 extinguishes.LED indicating circuit is shown to user by lighting for LED with extinguishing, is easy to look into
See.
As shown in figure 14, IR signal reception transtation mission circuit 109 is by infrared transmitting circuit and infrared receiving circuit two parts
Composition.Infrared transmitting circuit part, it is made up of infrared transmitter D4, resistance R12, R44 and PNP triode Q4, infrared transmitter
D4 anode connects 3.3V power supplys, negative electrode connecting resistance R12, resistance R12 another termination PNP triode Q4 emitter stage, the poles of PNP tri-
Pipe Q4 colelctor electrode meets GND, the output signal PA9 that PNP triode Q4 base stage passes through resistance R44 connection control circuits 101.Work as control
When the output signal PA9 of circuit 101 processed is low level, PNP triode Q4 conductings, driving infrared transmitter D4 passes out signal
Go.Infrared receiving circuit part, it is made up of infrared remote receiver U2, resistance R3 and R4, electric capacity C2, infrared remote receiver U2 pin 1
Electric capacity C2 is met over the ground, and connects pull-up resistor R3, and pin 2 is grounded, and pin 3 connects pull-up resistor R4, while is connected to control control circuit
101.Infrared remote receiver has the characteristics that wide angle, long range reception, strong antijamming capability, keeps out environmental disturbances light.When it
After receiving infrared signal, internal PN junction conducting, infrared signal is switched into voltage signal, export PA10 to control circuit 101, carry out
Information processing.
As shown in figure 15, control circuit 101 includes the devices such as single-chip microcomputer U1, interface circuit, memory circuitry and electric capacity, resistance
Part.P1 the 1st and the 4th pin connects 3.3V power supplys in interface circuit, and the 2nd pin meets single-chip microcomputer U1 the 23rd pin SWDIO, and connects
Pull-up resistor R8, the 3rd pin meet single-chip microcomputer U1 the 24th pin SWCLK, and connect pull-up resistor R7, the 4th of U1 in storage circuit
Pin and the 8th pin connect 3.3V power supplys, and the 8th pin powers up over the ground holds C1, and the 5th pin meets single-chip microcomputer U1 the 30th pin PB7, the
6 pins connect single-chip microcomputer U1 the 29th pin.Single-chip microcomputer be responsible for transmitting the voltage come in, electric current, the signal such as protection be collected,
Calculate, processing work, and by necessary data storage into memory circuitry, interface circuit is used for the programming of SCM program.It is logical
IR signal reception transtation mission circuit 109 is crossed, completes externally to enter the transmission of row information.
The signal input part of control circuit 101 respectively with charge current sample circuit 102, load current sample circuit 103,
Input voltage state sample circuit 104, load voltage sample circuit 105, battery voltage sampling circuit 106, external temperature sampling
The output end of circuit 107 is connected；And the signal output part of control circuit 101, respectively with LED indicating circuit 108, infrared signal connects
Transmit and receive circuit 109, switch mosfet pipe Q1 drive circuits 110, switch mosfet pipe Q2 drive circuits 111, switch mosfet
Pipe Q3 drive circuits 112, the input of switch mosfet pipe Q4 drive circuits 113 are connected.
As shown in Figure 1 b, filled black arrows are under BUCK patterns, and the current direction that charges a battery, this MOSFET is opened
Q4 is turned on when closing pipe, switch mosfet pipe Q3 shut-offs；Hollow arrow be under BOOST patterns, to the current direction of street lamp power supply, road lamp power supply,
Now switch mosfet pipe Q3 is turned on, switch mosfet pipe Q4 shut-offs.
Claims (10)
- A kind of 1. photovoltaic MPPT types constant current integrated street lamp controller circuitry, it is characterised in that：Described controller for road lamp circuit bag Include main circuit；Described main circuit is by BOOST/BUCK integral circuitries, street lamp series circuit, photovoltaic battery panel series circuit and storage Battery series circuit forms；Described street lamp series circuit is in parallel with photovoltaic battery panel series circuit, the parallel branch it is positive and negative Pole is connected with the input of BOOST/BUCK integral circuitries；Daytime, main circuit was operated in BUCK patterns, photovoltaic battery panel series electrical Road participates in work, and its positive and negative electrode is connected with the input of BOOST/BUCK integral circuitries；Night main circuit is operated in BOOST moulds Formula, street lamp series circuit participate in work, and its positive and negative electrode is connected with the input of BOOST/BUCK integral circuitries；Photovoltaic battery panel Series circuit daytime, the power supply as main circuit, was charged, night cuts off out electricity by BOOST/BUCK integral circuitries for battery Road, it is not involved in work；Load of the street lamp series circuit night as main circuit, power supply of the battery as main circuit, passes through BOOST/BUCK integral circuitries are powered for street lamp series circuit, are cut off out circuit daytime, are not involved in work；Battery series circuit It is in parallel with BOOST/BUCK integral circuitries, the positive and negative electrode port of battery series circuit respectively with BOOST/BUCK integral circuitries The positive and negative electrode of output end is connected, and daytime is charged by photovoltaic battery panel series circuit for battery series circuit, night battery string Join circuit to power for street lamp series circuit as power supply.
- 2. photovoltaic MPPT types constant current integrated street lamp controller circuitry as claimed in claim 1, it is characterised in that：Described street lamp Controller circuitry also includes the function module circuit for serving main circuit：It is control circuit (101), power-supplying circuit (115), defeated Enter voltage status sample circuit (104), load voltage sample circuit (105), charge current sample circuit (102), external temperature Sample circuit (107), drive circuit, LED indicating circuit (108) and IR signal reception transtation mission circuit (109)；The input of power-supplying circuit (115) is in parallel with battery series circuit, the positive and negative electrode and BOOST/ of the parallel branch The output end of BUCK integral circuitries is connected；Power-supplying circuit will after the voltage step-down of battery series circuit, be charging current Sample circuit (102), load current sample circuit (103), input voltage state sample circuit (104), load voltage sampling electricity It is road (105), battery voltage sampling circuit (106), drive circuit, control circuit (101), external temperature sample circuit (107), red External signal receives transtation mission circuit (109), LED indicating circuit (108) power supply, i.e. power-supplying circuit is from battery connected in parallel Electric energy is obtained in series circuit, the power supply as each functional module；The input of input voltage state sample circuit (104) is connected to photovoltaic battery panel series circuit, and input voltage state is adopted The output end of sample circuit (104) is connected to the signal input tube pin of the single-chip microcomputer of control circuit (101)；Input voltage state samples Whether circuit (104) detection photovoltaic battery panel is reversed, and in the case of connection is correct, if it is reached for the electricity of battery charging Pressure, the single-chip microcomputer that the signal detected is transferred to control circuit (101) are judged；The input of battery voltage sampling circuit (106) is connected to battery series circuit, battery voltage sampling circuit (106) Output end is connected to the signal input tube pin of the single-chip microcomputer of control circuit (101), gathers the voltage at battery series circuit both ends, And the voltage signal of collection is transferred to single-chip microcomputer and calculated；The input of load voltage Acquisition Circuit (105) is connected to street lamp series circuit, load voltage Acquisition Circuit (105) it is defeated Go out the signal input tube pin that end is connected to the single-chip microcomputer of control circuit (101), the voltage at collection street lamp both ends, and by the electricity of collection The single-chip microcomputer that pressure signal is transferred to control circuit (101) is calculated；The input of charge current sample circuit (102) is connected to photovoltaic battery panel series circuit；Charge current sample circuit (102) output end is connected to the signal input tube pin of the single-chip microcomputer of control circuit (101), collection photovoltaic cell board component on daytime The electric current to be charged for battery, and the single-chip microcomputer for transmitting a signal to control circuit (101) is calculated；The input of load current Acquisition Circuit (103) is connected to street lamp series circuit, load current Acquisition Circuit (103) it is defeated Going out end has 3, and the first output end is connected to the signal input tube pin of the single-chip microcomputer of control circuit (101), by load current signal It is transferred to single-chip microcomputer；Second output end is connected to the over-current signal input pin of the single-chip microcomputer of control circuit (101), when electric current surpasses When crossing setting value, single-chip microcomputer output signal is alarmed；3rd output end is connected directly to the semiconductor of load in series circuit The grid of switching device, when electric current exceedes setting value, semiconductor switch device is turned off, street lamp is cut out from main circuit；The temperature signal that the output end of external temperature sample circuit (107) is connected to control circuit (101) single-chip microcomputer corresponds to pin； External temperature sample circuit (107) is made up of a NTC resistance and a resistant series, and external temperature sample circuit (107) is defeated The signal gone out is the voltage at NTC resistance both ends, thus detects ambient temperature, and transmit a signal to control circuit (101) single-chip microcomputer；No. five drive circuits drive switch mosfet pipe Q1, Q2, Q3, Q4 and Q5 in main circuit respectively：First via drive circuit For switch mosfet pipe Q1 drive circuits (110), the drive of the input of the road drive circuit and the single-chip microcomputer of control circuit (101) Dynamic signal sends pin and is connected, the grid of the switch mosfet pipe Q1 in output end connection BOOST/BUCK integral circuitries, Under BOOST patterns, pwm signal that single-chip microcomputer is sent passes to switch mosfet pipe Q1, and provides and open, turns off MOSFET and open Energy needed for pipe Q1 is closed, to realize the operation of BOOST circuits；No. second drive circuit is switch mosfet pipe Q2 drive circuits (111), the input and control circuit of the drive circuit (101) drive signal of single-chip microcomputer sends pin and is connected, the output end connection BOOST/BUCK one electricity of drive circuit (111) The grid of switch mosfet pipe Q2 in road, under BUCK patterns, the pwm signal that single-chip microcomputer is sent passes to switch mosfet Pipe Q2, and provide and open, turn off energy needed for switch mosfet pipe Q2, to realize the operation of BUCK circuits；No. threeth drive circuit is switch mosfet pipe Q3 drive circuits (112), drives and oad freewheels are controlled in main circuit Switch mosfet pipe Q3；The drive signal of the input of the road drive circuit (112) and the single-chip microcomputer of control circuit sends pin It is connected, output end is connected to switch mosfet pipe Q3 grid, and the high and low level signal that single-chip microcomputer is sent passes to MOSFET Switching tube Q3, and provide switch mosfet pipe Q3 open, turn off needed for energy, street lamp put into, cut out main circuit to realize Action；No. fourth drive circuit is switch mosfet pipe Q4 drive circuits (113), drives and photovoltaic battery panel group is controlled in main circuit The switch mosfet pipe Q4 of part afterflow；The driving of the input of the road drive circuit (113) and the single-chip microcomputer of control circuit (101) Signal sends pin and is connected, and output end is connected to switch mosfet pipe Q4 grid, the high and low level signal that single-chip microcomputer is sent Pass to switch mosfet pipe Q4, and provide switch mosfet pipe Q4 open, turn off needed for energy, to realize photovoltaic battery panel Component input, the action for cutting out main circuit；No. fiveth drive circuit is switch mosfet pipe Q5 drive circuits (114), controls battery to continue in circuit drives main circuit The switch mosfet pipe Q5 of stream, the input of the road drive circuit (114) are connected with the positive pole of battery, and output end is connected to Switch mosfet pipe Q5 grid；When main circuit positive bus voltage is relatively low, switch mosfet pipe Q5 is turned off, battery is cut Remove out main circuit；LED indicating circuit one shares three groups, and the input of three groups of LED indicating circuits is corresponding with the single-chip microcomputer in control circuit respectively Three pins be connected, to the working condition of user's display circuit；IR signal reception transtation mission circuit, which is divided into, sends and receives two parts；The input of receiving circuit letter corresponding with single-chip microcomputer Pin connection number is sent, exports infrared signal, is the data that controller for road lamp is sent to the hand-held terminal device of user；Send electricity The output end on road signal corresponding with single-chip microcomputer receives pin connection, inputs infrared signal, receives the hand-held terminal device of user The infrared signal sended over, is controlled to controller for road lamp；It is the input of control circuit (101) and input voltage state sample circuit (104), charge current sample circuit (102), outer Portion's temperature sampling circuit (107), the output end of IR signal reception transtation mission circuit (109) are connected；The output of control circuit (101) End is connected with the input of drive circuit, IR signal reception transtation mission circuit (109), LED indicating circuit (108)；Control circuit (101) calculating processing, storage are carried out to the voltage, electric current, temperature data that collect, the mode of operation of main circuit is controlled, in event Protection signal is sent in the case of barrier in time, data exchange is carried out with the hand-held terminal device of outside.
- 3. photovoltaic MPPT types constant current integrated street lamp controller circuitry as claimed in claim 1, it is characterised in that：Described photovoltaic Cell panel series circuit is composed in series by photovoltaic cell board component, switch mosfet pipe Q4 and the second detection resistance R2；Photovoltaic electric The positive pole of the positive pole, i.e. photovoltaic battery panel of pond plate series circuit, connect the positive pole of BOOST/BUCK integral circuitry inputs；Photovoltaic The negative pole connection switch mosfet pipe Q4 of battery panel components source electrode, switch mosfet pipe Q4 drain electrode are connected to the second detection electricity Hinder R2 one end；The second detection resistance R2 other end is connected with the negative pole of the input of BOOST/BUCK integral circuitries.
- 4. photovoltaic MPPT types constant current integrated street lamp controller circuitry as claimed in claim 1, it is characterised in that：Described street lamp Series circuit is composed in series by street lamp, switch mosfet pipe Q3 and the first detection resistance R1；The positive pole of street lamp series circuit, i.e. road The positive pole of lamp, connect the positive pole of BOOST/BUCK integral circuitry inputs；The negative pole connection switch mosfet pipe Q3 of street lamp source Pole；Switch mosfet pipe Q3 drain electrode is connected to the first detection resistance R1 one end, the first detection resistance R1 other end with The negative pole of the input of BOOST/BUCK integral circuitries is connected.
- 5. photovoltaic MPPT types constant current integrated street lamp controller circuitry as claimed in claim 1, it is characterised in that：Described The just extremely switch mosfet pipe Q2 source electrode of BOOST/BUCK integral circuitry inputs, switch mosfet pipe Q2 drain electrode connection Switch mosfet pipe Q1 source electrode；The negative pole of BOOST/BUCK integral circuitries is switch mosfet pipe Q1 drain electrode；First electric capacity Group C1 positive pole is connected to the source electrode of the positive pole, i.e. switch mosfet pipe Q2 of BOOST/BUCK integral circuitries, the first capacitance group C1 Negative pole be connected to BOOST/BUCK integral circuitries negative pole, i.e. switch mosfet pipe Q1 drain electrode；Energy storage inductor L one end with Switch mosfet pipe Q1 source electrode is connected, and the energy storage inductor L other end connects the second capacitance group C2 positive pole；Second capacitance group C2 Negative pole connection switch mosfet pipe Q1 drain electrode, the output of the second capacitance group C2 positive pole as BOOST/BUCK integral circuitries The positive pole at end, connect the positive pole of battery series circuit；Second capacitance group C2 negative pole is defeated as BOOST/BUCK integral circuitries Go out the negative pole at end, connect the drain electrode of switch mosfet pipe Q5 in battery series circuit, Q5 source electrode is connected to the negative pole of battery.
- 6. photovoltaic MPPT types constant current integrated street lamp controller circuitry as claimed in claim 1, it is characterised in that：Described electric power storage The positive pole of pond series circuit is connected with counnter attack diode D10 anode, counnter attack diode D10 negative electrode and electric capacity C18 one end, Resistance R29 one end, and triode Q8 colelctor electrode are connected；The another of electric capacity C18 is connected to GND；The resistance R29 other end It is connected with triode Q8 base stage and voltage-stabiliser tube DZ2 negative electrode, bias current is provided for triode Q8, so as to turn-on transistor Q8；Voltage-stabiliser tube DZ2 anode is connected to GND, stabilized base voltage；Electric capacity C16 and voltage-stabiliser tube DZ2 is in parallel, with triode Q8 structures Into electronic filter circuit.
- 7. photovoltaic MPPT types constant current integrated street lamp controller circuitry as claimed in claim 2, it is characterised in that：Described input Voltage status sample circuit (104) is made up of diode, optocoupler U20 and resistor in series, gathers photovoltaic battery panel series circuit Input voltage；When photovoltaic battery panel series circuit voltage class exceedes predetermined voltage threshold, the triode inside optocoupler U20 Conducting, optocoupler U20 the 4th pin PA11 become low level by high level, and this signal is transferred to control circuit 101, to judge to be No startup BUCK circuits；One group of counnter attack detection circuit of photovoltaic battery panel input reverse parallel connection, when cell panel is reversed and reaches pre- If during magnitude of voltage, the triode ON inside optocoupler U21, optocoupler U21 the 4th pin PA12 becomes low level by high level, this Signal feeds back to control circuit (101), and to judge cell panel, whether both positive and negative polarity is reversed.
- 8. photovoltaic MPPT types constant current integrated street lamp controller circuitry as claimed in claim 2, it is characterised in that：Described load Current detection circuit (103) is made up of differential amplifier circuit and positive comparator；The output of differential amplifier circuit is compared with positive The in-phase input end of device is connected；Night, differential amplifier circuit are operated in BOOST patterns, switch mosfet pipe Q3 in main circuit, Q5 is in the conduction state；Positive comparator is made up of resistance R54, R56 and operational amplifier U6B, resistance R54 and R56 composition string Join bleeder circuit, the connection midpoint of two resistance is connected to operational amplifier U6B inverting input；The voltage threshold of positive comparator The magnitude of voltage at i.e. two divider resistance R54, R56 connection midpoints；As differential amplifier circuit output voltage VOUTMore than positive comparator Predetermined threshold value when, the output PA6 of positive comparator becomes high level, is transferred to control circuit 101, the output of positive comparator End is connected to triode Q7 base stage, triode Q7 conductings, the drive signal of the MOSFET Q3 corresponding to street lamp by resistance R62 Drive level is pulled low to GND, MOSFET Q3 is off state, and street lamp is cut off out into main circuit.
- 9. photovoltaic MPPT types constant current integrated street lamp controller circuitry as claimed in claim 2, it is characterised in that：Described charging Current detection circuit (102) is made up of low-pass filter circuit and buffer circuit, the output of low-pass filter circuit and buffer circuit In-phase input end is connected；Charging current detecting circuit (102) gathers the charging current of photovoltaic battery panel series circuit input, i.e., The operating current of BUCK circuits；When BUCK circuits charge to battery series circuit, MOSFET Q4 are in the conduction state, electricity Stream pass through the second detection resistance R2, and generation voltage signal simultaneously passes to operational amplifier U7A, after resistance R58 and electric capacity C37 parallel connections Operational amplifier U7A the 1st pin and the 2nd pin are connected to, forms active low-pass filter circuit, then give signal output to buffering electricity Signal is passed to control circuit (101) and carries out computing and processing by road, buffer circuit.
- 10. photovoltaic MPPT types constant current integrated street lamp controller circuitry as claimed in claim 2, it is characterised in that：MOSFET is opened Close pipe Q1 drive circuits (110), switch mosfet pipe Q2 drive circuits (111) export 2 road pwm signals and provide driving respectively Energy needed for MOSFET；When control circuit sends PWM ripple PA8, switch mosfet pipe Q1 drive circuits (110) output mos FET is opened Pipe Q2 drive signal HO is closed to resistance R32 is driven, driving resistance R32 is connected with switch mosfet pipe Q2 grid, when PWM ripples When PA8 is high level, switch mosfet pipe Q2 is opened, and when PWM ripples PA8 is low level, switch mosfet pipe Q2 is closed；Work as control When circuit processed sends PWM ripple PA7, switch mosfet pipe Q1 drive circuits (110) output mos FET switch pipe Q1 drive signal To resistance R39 is driven, driving resistance R39 is connected LO with switch mosfet pipe Q1 grid, when PWM ripples PA7 is high level, Switch mosfet pipe Q1 is opened, and when PWM ripples PA7 is low level, switch mosfet pipe Q1 is closed；Switch mosfet pipe Q5 drive circuits (114) are using two resistance R36, R38 series connection partial pressure forms；Resistance R36 one end It is connected with the positive pole B+ of battery, resistance the R36 other end and resistance R38 are connected to switch mosfet pipe Q5 grid, resistance The R38 other ends are connected with switch mosfet pipe Q5 drain electrode, and switch mosfet pipe Q5 source electrode and the negative pole Bat- of battery connect Connect；When the positive bus voltage of battery reaches given threshold, after busbar voltage is by resistance R36, R38 partial pressure, conducting Switch mosfet pipe Q5；Between switch mosfet pipe Q5 grid and drain electrode, i.e. a resistance R38 both ends voltage-stabiliser tube in parallel DZ3, to be protected to MOSFET.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710815103.7A CN107592700A (en) | 2017-09-12 | 2017-09-12 | A kind of photovoltaic MPPT types constant current integrated street lamp controller circuitry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710815103.7A CN107592700A (en) | 2017-09-12 | 2017-09-12 | A kind of photovoltaic MPPT types constant current integrated street lamp controller circuitry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107592700A true CN107592700A (en) | 2018-01-16 |
Family
ID=61051423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710815103.7A Pending CN107592700A (en) | 2017-09-12 | 2017-09-12 | A kind of photovoltaic MPPT types constant current integrated street lamp controller circuitry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107592700A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109640445A (en) * | 2018-12-24 | 2019-04-16 | 江阴华慧源电子技术有限公司 | A kind of solar street lamp controller and its control method based on MPPT |
| CN109672339A (en) * | 2019-02-26 | 2019-04-23 | 上海醇加能源科技有限公司 | A kind of multi-channel digital power supply |
| CN113991822A (en) * | 2021-10-29 | 2022-01-28 | 惠州高盛达科技有限公司 | Photovoltaic panel charge-discharge application circuit based on BUCK circuit |
| CN116317068A (en) * | 2023-05-19 | 2023-06-23 | 湖南第一师范学院 | BOOST-BUCK cascade type photovoltaic energy storage circuit and control system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103249203A (en) * | 2012-02-06 | 2013-08-14 | 上海岩芯电子科技有限公司 | LED constant current drive and photovoltaic module MPPT integrally controlled street lamp system |
| CN204835641U (en) * | 2015-08-14 | 2015-12-02 | 北京远方动力可再生能源科技股份公司 | Maximum power trails MPPT constant current all -in -one that steps up |
| CN204986823U (en) * | 2015-08-05 | 2016-01-20 | 深圳市宏啟光电有限公司 | High effective solar street light |
| CN206100534U (en) * | 2016-07-29 | 2017-04-12 | 扬州大学 | Utilize photovoltaic MPPT power supply system's LED controlling means |
-
2017
- 2017-09-12 CN CN201710815103.7A patent/CN107592700A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103249203A (en) * | 2012-02-06 | 2013-08-14 | 上海岩芯电子科技有限公司 | LED constant current drive and photovoltaic module MPPT integrally controlled street lamp system |
| CN204986823U (en) * | 2015-08-05 | 2016-01-20 | 深圳市宏啟光电有限公司 | High effective solar street light |
| CN204835641U (en) * | 2015-08-14 | 2015-12-02 | 北京远方动力可再生能源科技股份公司 | Maximum power trails MPPT constant current all -in -one that steps up |
| CN206100534U (en) * | 2016-07-29 | 2017-04-12 | 扬州大学 | Utilize photovoltaic MPPT power supply system's LED controlling means |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109640445A (en) * | 2018-12-24 | 2019-04-16 | 江阴华慧源电子技术有限公司 | A kind of solar street lamp controller and its control method based on MPPT |
| CN109640445B (en) * | 2018-12-24 | 2023-10-24 | 江阴华慧源电子技术有限公司 | MPPT-based solar street lamp controller and control method thereof |
| CN109672339A (en) * | 2019-02-26 | 2019-04-23 | 上海醇加能源科技有限公司 | A kind of multi-channel digital power supply |
| CN113991822A (en) * | 2021-10-29 | 2022-01-28 | 惠州高盛达科技有限公司 | Photovoltaic panel charge-discharge application circuit based on BUCK circuit |
| CN116317068A (en) * | 2023-05-19 | 2023-06-23 | 湖南第一师范学院 | BOOST-BUCK cascade type photovoltaic energy storage circuit and control system |
| CN116317068B (en) * | 2023-05-19 | 2023-07-25 | 湖南第一师范学院 | BOOST-BUCK cascade type photovoltaic energy storage circuit and control system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107592700A (en) | A kind of photovoltaic MPPT types constant current integrated street lamp controller circuitry | |
| TWI500248B (en) | High efficiency bidirectional DC converter and its control method | |
| CN206559133U (en) | Power supply switch circuit | |
| CN207069553U (en) | A kind of control circuit for realizing hardware watchdog and automatic time delay break-make Electricity Functional | |
| CN205070865U (en) | Electrically operated gate control circuit | |
| CN112511037A (en) | Self-powered intrinsic safety type sensor | |
| CN201150031Y (en) | Switch power supply | |
| CN207150798U (en) | Stereo set | |
| CN203632334U (en) | A multi-branch feedback charger circuit | |
| CN203929855U (en) | A kind of servo control mechanism cell voltage test circuit | |
| CN106712200A (en) | Automotive starting power supply based on super-capacitors | |
| CN103972931B (en) | Input line selector for battery charger | |
| CN207304027U (en) | A kind of imput output circuit for automobile starting power supply | |
| CN104377827B (en) | A kind of photovoltaic DC power supply | |
| CN107067748A (en) | Vehicle detection apparatus and system | |
| CN205265526U (en) | DC -DC converter integrated circuit and application circuit thereof | |
| CN204904053U (en) | Automatic load option function module | |
| CN206629048U (en) | Analog quantity isolation circuit, charging equipment and the electrical changing station of alternating current-direct current charging interconnection | |
| CN208226571U (en) | Photovoltaic module array turning off system | |
| CN107579648A (en) | A kind of inverse-excitation type switch power-supply and its control circuit | |
| CN106936179A (en) | A kind of imput output circuit for automobile starting power supply | |
| CN204131149U (en) | A kind of from Portable photovoltaic lithium battery charging device under net state | |
| CN209028179U (en) | A kind of electronic switch detection device, photovoltaic junction box and photovoltaic devices | |
| CN111478584A (en) | Novel underwater power supply system | |
| CN205721236U (en) | A kind of field intelligent data adopts transmitting apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180116 |
|
| WD01 | Invention patent application deemed withdrawn after publication |