CN109066952A - A kind of low consumable electric control circuit, solar controller, solar power system - Google Patents
A kind of low consumable electric control circuit, solar controller, solar power system Download PDFInfo
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- CN109066952A CN109066952A CN201811011344.7A CN201811011344A CN109066952A CN 109066952 A CN109066952 A CN 109066952A CN 201811011344 A CN201811011344 A CN 201811011344A CN 109066952 A CN109066952 A CN 109066952A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present embodiments relate to solar powered technical field, a kind of low consumable electric control circuit, solar controller, solar power system are disclosed.The low consumable electric control circuit includes: voltage detecting circuit, it is connect for the energy-storage battery with solar controller, detect the voltage of the energy-storage battery, when the voltage of the energy-storage battery is higher than preset threshold, export the first electric signal, when the voltage of the energy-storage battery is lower than the preset threshold, the second electric signal is exported；Power supply circuit, it is connect with the voltage detecting circuit, for controlling the control circuit of the solar controller in a dormant state according to first electric signal, it is also used to according to second electric signal, the control circuit for controlling the solar controller is in running order.In the above manner, the present embodiment can be effectively reduced solar controller from power consumption.
Description
Technical field
The present invention relates to solar powered technical fields, and in particular to a kind of low consumable electric control circuit, solar control
Device, solar power system.
Background technique
In solar power system, solar controller fills energy-storage battery for controlling multichannel solar cell array
Automatic control equipment of the electric and control energy-storage battery to solar inverter load supplying.Solar controller is to energy-storage battery
Charge and discharge condition provided and controlled, and control solar module and energy-storage battery pair according to the power supply requirement of load
The power output of load is the core control portions of entire solar power generation.
Inventor has found during realizing the embodiment of the present invention, when user encounters continuous rainy days so that solar panels
When can not charge, although solar controller alreadyes switch off output, since solar controller itself exists from power consumption, thus
So that the electricity of energy-storage battery is still persistently consumed, it is easy so that energy-storage battery over-discharge, and then damage energy-storage battery.
Summary of the invention
In order to solve the above technical problems, it is an object of that present invention to provide a kind of low consumable electric control circuits, solar control
Device, solar power system, can be effectively reduced solar controller from power consumption.
To achieve the goals above, the embodiment of the invention discloses following technical solutions:
The present invention provides a kind of low consumable electric control circuits, comprising: voltage detecting circuit is used for and solar controller
Energy-storage battery connection, detect the voltage of the energy-storage battery, when the voltage of the energy-storage battery be higher than preset threshold when, output
First electric signal exports the second electric signal when the voltage of the energy-storage battery is lower than the preset threshold；Power supply circuit, with
The voltage detecting circuit connection, is used for according to first electric signal, at the control circuit for controlling the solar controller
In dormant state, the control circuit for being also used to control the solar controller according to second electric signal is in work shape
State.
In some embodiments, the voltage detecting circuit includes first voltage interface, second voltage interface, the first electricity
Resistance, second resistance, 3rd resistor, the first voltage-stabiliser tube and operational amplifier；One end of the first resistor and the first voltage
Interface connection, the other end of the first resistor are connect with the inverting input terminal of the operational amplifier, the second resistance
One end is connect with the inverting input terminal of the operational amplifier, and the other end of the second resistance and the second voltage interface connect
It connects, one end of the 3rd resistor is connect with the first voltage interface, and the other end of the 3rd resistor is put with the operation
The non-inverting input terminal connection of big device, the negative pole end of first voltage-stabiliser tube are connect with the non-inverting input terminal of the operational amplifier,
The positive terminal of first voltage-stabiliser tube is connect with the second voltage interface, the positive power source terminal of the operational amplifier and described the
The connection of one voltage interface, the negative power end of the operational amplifier are connect with the second voltage interface, the operational amplifier
Output end for connecting the power supply circuit；Wherein, the first voltage interface is used to connect the voltage of the energy-storage battery
Anode, the second voltage interface are used to connect the voltage cathode of the energy-storage battery.
In some embodiments, the power supply circuit include tertiary voltage interface, the 4th voltage interface, first diode,
4th resistance, the 5th resistance, the first triode, the second triode, the second voltage-stabiliser tube, first capacitor, the second capacitor and control core
Piece；The positive terminal of the first diode for being connect with the voltage detecting circuit, one end of the 4th resistance with it is described
The positive terminal of first diode connects, and the other end of the 4th resistance is connect with the voltage detecting circuit, and the described 1st
The negative pole end of pole pipe is connect with the base terminal of first triode, and the emitter terminal and the voltage of first triode are examined
Slowdown monitoring circuit connection, the collector terminal of first triode connect with one end of the 5th resistance, the 5th resistance it is another
One end is connect with the other end of the 4th resistance, the collector of the base terminal of second triode and first triode
End connection, the collector terminal of second triode are connect with the other end of the 4th resistance, the hair of second triode
Emitter-base bandgap grading is connect with the input terminal of the control chip, the emitter of the positive terminal of second voltage-stabiliser tube and first triode
End connection, the negative pole end of second voltage-stabiliser tube are connect with the base terminal of second triode, the output of the control chip
End is connect with the tertiary voltage interface, and the ground terminal of the control chip is connect with the emitter terminal of first triode,
4th voltage interface is connect with the emitter terminal of first triode, one end of the first capacitor and the control core
The input terminal of piece connects, and the other end of the first capacitor is connect with the emitter terminal of first triode, second electricity
One end of appearance is connect with the tertiary voltage interface, and the other end of second capacitor is connect with the 4th voltage interface；Its
In, the tertiary voltage interface is used to connect the positive polarity of the control circuit, and the 4th voltage interface is for connecting institute
State the voltage cathode of control circuit.
In some embodiments, the low consumable electric control circuit further include: power supply wake-up circuit, with the power supply circuit
Connection, for when the control circuit in a dormant state when, whether the solar panels for detecting the solar controller meet
Charging requirement controls the control circuit and enters working condition if the solar panels meet charging requirement.
In some embodiments, the power supply wake-up circuit includes the 5th voltage interface, the 6th voltage interface, third pressure stabilizing
Pipe, the 6th resistance and isolated location；5th voltage interface is connect with the negative pole end of the third voltage-stabiliser tube, and the third is steady
The positive terminal of pressure pipe is connect with one end of the 6th resistance, the input of the other end and the isolated location of the 6th resistance
Positive terminal connection, the input negative pole end of the isolated location are connect with the 6th voltage interface, the output of the isolated location
Positive terminal is connect with the power supply circuit, and the output negative pole end of the isolated location is connect with the power supply circuit；Wherein, described
5th voltage interface is used to connect the positive polarity of the solar panels, and the 6th voltage interface is for connecting the solar energy
The voltage cathode of plate.
In some embodiments, the isolated location is photoisolator.
The present invention also provides a kind of solar controllers, including control circuit, solar panels interface, energy-storage battery interface
And above-mentioned low consumable electric control circuit；The solar panels interface is for connecting solar panels, the energy-storage battery interface
For connecting energy-storage battery, the control circuit is connect with the solar panels interface, the energy-storage battery interface respectively, described
Low consumable electric control circuit is connect with energy-storage battery and control circuit respectively.
In some embodiments, the solar controller further include: isolated power supply circuit, respectively with the solar panels
Interface, energy-storage battery interface connection；The control circuit by the isolated power supply circuit and the solar panels interface,
The energy-storage battery interface connection, the control circuit is for controlling the isolated power supply circuit, so that the solar panels pair
The energy-storage battery carries out constant-current charge, until the voltage of the energy-storage battery is greater than preset threshold and then stops.
In some embodiments, the isolated power supply circuit includes input terminal, third capacitor, field-effect tube, isolation transformation
Device, the second diode, the 4th capacitor, current sense resistor, control integrated circuit and output end with current detection function；Institute
Input terminal is stated for connecting the solar panels interface, the both ends of the third capacitor are connect with the both ends of the input terminal, institute
The one end for stating input terminal is connect with one end of the original grade coil of the isolating transformer, the original grade coil of the isolating transformer
The other end is connect with the drain electrode of the field-effect tube, and the source electrode of the field-effect tube is connect with the other end of the input terminal, institute
State the grid and the integrated circuit connection of the control with current detection function of field-effect tube, the one of the current sense resistor
End integrates circuit connection with the control with current detection function, and the other end of the current sense resistor and the field are imitated
Should pipe source electrode connection, one end of the secondary coil of the isolating transformer connect with the positive terminal of second diode, institute
The negative pole end for stating the second diode is connect with one end of the output end, the other end of the secondary coil of the isolating transformer with
The other end of the output end connects, and the both ends of the 4th capacitor are connect with the both ends of the output end, and the output end is used
In the connection energy-storage battery；The control integrated circuit with current detection function is connect with the control circuit.
The present invention also provides a kind of solar power systems, including above-mentioned solar controller.
The beneficial effect of the embodiment of the present invention is: being in contrast to the prior art down, provided in an embodiment of the present invention one
Kind solar controller detects the voltage of energy-storage battery by setting voltage detecting circuit, and power supply circuit is according to voltage detecting circuit
Testing result control solar controller control circuit power supply, thus make solar controller control circuit be in stop
Dormancy state or working condition, so can be effectively reduced solar controller from power consumption.
Detailed description of the invention
One or more embodiments are illustrated by the picture in corresponding attached drawing, these exemplary theorys
The bright restriction not constituted to embodiment, the element in attached drawing with same reference numbers label are expressed as similar element, remove
Non- to have special statement, composition does not limit the figure in attached drawing.
Fig. 1 is the structural schematic diagram of low consumable electric control circuit provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of low consumable electric control circuit provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the first voltage-stabiliser tube shown in Fig. 2, the second voltage-stabiliser tube and third voltage-stabiliser tube；
Fig. 4 is the structural schematic diagram of operational amplifier shown in Fig. 2；
Fig. 5 is the structural schematic diagram of first diode shown in Fig. 2；
Fig. 6 is the structural schematic diagram of the first triode shown in Fig. 2, the second triode；
Fig. 7 is the structural schematic diagram of isolated location shown in Fig. 2；
Fig. 8 is a kind of structural schematic diagram of solar controller provided in an embodiment of the present invention；
Fig. 9 is the structural schematic diagram of isolated power supply circuit shown in Fig. 8；
Figure 10 is a kind of structural schematic diagram of solar power system provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In addition, as long as technical characteristic involved in the various embodiments of the present invention described below is each other not
Constituting conflict can be combined with each other.
In order to meet power demand, improve the living standard of the people, there is an urgent need to conveniently, safely, energy utilization rate is high, behaviour
Make to safeguard that simple product solves the problems, such as power supply.It is generated electricity in the prior art using solar controller as small-sized solar and is
The core control equipment of system, solar controller are connected with solar panels, energy-storage battery and for electric loading respectively by setting interface
It connects, so that the control circuit inside solar controller be made to control respectively, solar panels energy-storage battery is powered, energy-storage battery is
Load supplying, the control circuit that energy-storage battery is inside of powering are powered.When encountering bad weather, for example, it is continuous overcast and rainy
It, when solar panels can not charge, even if solar controller has cut off the output for electric loading, but inside solar controller
Control circuit can still continue to expend the electricity of energy-storage battery, to be easy to cause energy-storage battery over-discharge, and then damage energy storage electricity
Pond.
Based on this, the embodiment of the present invention provides a kind of low consumable electric control circuit, solar controller, solar power generation system
System can cut off energy-storage battery and power to the control circuit inside solar controller when energy-storage battery is in low-pressure state,
To be effectively reduced solar controller from power consumption.
The low consumable electric control circuit of the embodiment of the present invention can be used as one of functional unit, be independently arranged at the sun
Can control in device or solar power system, can also be used as be integrated into a functional module carry out using.
Specifically, with reference to the accompanying drawing, the embodiment of the present invention is further elaborated.
Embodiment one
Fig. 1 is the structural schematic diagram of low consumable electric control circuit provided in an embodiment of the present invention.As shown in Figure 1, this implementation
The low consumable electric control circuit 100 of example includes voltage detecting circuit 110 and power supply circuit 120, voltage detecting circuit 110 and confession
Circuit 120 connects.
Also referring to Fig. 1 and Fig. 2, voltage detecting circuit 110 is examined for connecting with the energy-storage battery of solar controller
The voltage for surveying energy-storage battery exports the first electric signal, when the electricity of energy-storage battery when the voltage of energy-storage battery is higher than preset threshold
When pressure is below or equal to preset threshold, the second electric signal is exported.Wherein, preset threshold is the voltage threshold of default setting, can
To be slightly larger than the discharge cut-off voltage of energy-storage battery, it is greater than the discharge cut-off voltage 0.3-0.5V of energy-storage battery, so as to
Enough avoid energy-storage battery damage.Wherein, the first electric signal and the second electric signal can be level signal, for example, working as energy storage
When the voltage of battery is higher than preset threshold, low level is exported, when the voltage of energy-storage battery is below or equal to preset threshold, output
High level.By detecting the voltage of energy-storage battery, high level or low level signal are exported, so that power supply circuit be made to make further
Control.
Specifically, voltage detecting circuit 110 include first voltage interface VD+, second voltage interface VD-, first resistor R1,
Second resistance R2,3rd resistor R3, the first voltage-stabiliser tube ZD1 and operational amplifier U1A.
Wherein, first voltage interface VD+ is used to connect the positive polarity of energy-storage battery, and second voltage interface VD- is for connecting
Connect the voltage cathode of energy-storage battery.Also, the output end of operational amplifier U1A is for connecting power supply circuit 120, thus output the
One electric signal or the second electric signal are to power supply circuit 120.
Wherein, it is zener diode also referring to Fig. 3, the first voltage-stabiliser tube ZD1, is a kind of until critical reverse breakdown electricity
All there is very high-resistance semiconductor devices before pressure.First voltage-stabiliser tube ZD1 is equipped with positive terminal and negative pole end, when electric current is from first
When the positive terminal of voltage-stabiliser tube ZD1 flows to negative pole end, the first voltage-stabiliser tube ZD1 has very high resistance, by electric current it is minimum, when the
When one voltage-stabiliser tube ZD1 is reversed breakdown, when electric current flows to positive terminal from the negative pole end of the first voltage-stabiliser tube ZD1, the first pressure stabilizing at this time
Pipe ZD1 has stable voltage value.
Wherein, referring to Figure 4 together, operational amplifier U1A is also known as amplifier, is the circuit with very high amplification factor
Unit, operational amplifier U1A can be discrete device or semiconductor chip.Operational amplifier U1A uses dual power supply,
Equipped with normal phase input end, inverting input terminal, output end, positive power source terminal and negative power end, so that the voltage of output can be
The variation of no-voltage two sides.
Wherein, one end of first resistor R1 is connect with first voltage interface VD+, the other end of first resistor R1 and operation
The inverting input terminal of amplifier U1A connects, and one end of second resistance R2 is connect with the inverting input terminal of operational amplifier U1A, the
The other end of two resistance R2 is connect with second voltage interface VD-, and one end of 3rd resistor R3 is connect with first voltage interface VD+,
The other end of 3rd resistor R3 is connect with the non-inverting input terminal of operational amplifier U1A, the negative pole end of the first voltage-stabiliser tube ZD1 and operation
The non-inverting input terminal of amplifier U1A connects, and the positive terminal of the first voltage-stabiliser tube ZD1 is connect with second voltage interface VD-, and operation is put
The positive power source terminal of big device U1A is connect with first voltage interface VD+, the negative power end and second voltage interface of operational amplifier U1A
VD- connection.
In the present embodiment, when the voltage of energy-storage battery is higher than preset threshold, input voltage is from operational amplifier U1A's
Inverting input terminal input, output voltage and input voltage reverse phase, thus in the output end of operational amplifier U1A output low level letter
Number；When the voltage of energy-storage battery is below or equal to preset threshold, non-inverting input terminal of the input voltage from operational amplifier U1A
Input, output voltage and the same phase of input voltage, thus high level signal is exported in the output end of operational amplifier U1A.
Power supply circuit 120 is used to control the control circuit of solar controller according to the first electric signal in a dormant state,
The control circuit for being also used to control solar controller according to the second electric signal is in running order.
It is worth noting that, energy-storage battery powers to control circuit when control circuit is in running order；When control electricity
Road in a dormant state when, energy-storage battery is cut off the power supply of control circuit.
Specifically, power supply circuit 120 includes tertiary voltage interface MCUV+, the 4th voltage interface MCUV-, first diode
D1, the 4th resistance R4, the 5th resistance R5, the first triode Q1, the second triode Q2, the second voltage-stabiliser tube ZD2, first capacitor C1,
Second capacitor C2 and control chip U1.
Wherein, tertiary voltage interface MCUV+ is in the positive polarity of connection control circuit, and the 4th voltage interface MCUV- is in even
The voltage cathode of connection control circuit, to control power supply of the energy-storage battery to control circuit.
Wherein, please refer to fig. 5, first diode D1 is equipped with positive terminal and negative pole end, it acts as only allow electric current
Negative pole end is flowed to from positive terminal, and blocks the electric current for flowing to positive terminal from negative pole end.
Wherein, referring to Figure 6 together, the first triode Q1, the second triode Q2 are transistor, can be by faint letter
Number the biggish electric signal of amplitude is zoomed into, there is Current amplifier effect.In the present embodiment, the first triode Q1, the two or three pole
Pipe Q2 is NPN triode, and the first triode Q1 (the second triode Q2) is equipped with collector terminal c, base terminal b and emitter terminal e,
When the current potential of base terminal b is higher than the current potential of emitter terminal e, emitter junction positively biased, when the current potential of collector terminal c is higher than base terminal b
Current potential when, emitter junction is reverse-biased.
Wherein, it is again provided with positive terminal and negative pole end also referring to Fig. 3, the second voltage-stabiliser tube ZD2, but noticeable
Be, the stable voltage of the first voltage-stabiliser tube ZD1 and the stable voltage of the second voltage-stabiliser tube ZD2 can with it is identical can be different, can be with
Freely it is arranged according to the actual situation.
Wherein, control chip U1 can for power management chip or dcdc converter etc., control chip U1 be equipped with input terminal,
Output and ground, when the input terminal for controlling chip U1 has voltage input, control chip U1 becomes the input voltage
Processing is changed, is exported after obtaining a lesser voltage value from control chip U1.In the present embodiment, the output electricity of chip U1 is controlled
Pressure is less than voltage threshold when low consumable electric control circuit 100 works normally, so that the operating current of low consumable electric control circuit 100
It is smaller, such as the operating current of low consumable electric control circuit 100 is made to be less than 3mA, to extend the stand-by time of sun controller.
Wherein, the positive terminal of first diode D1 is for the output end with the operational amplifier U1A of voltage detecting circuit 110
Connection, one end of the 4th resistance R4 are connect with the positive terminal of first diode D1, the other end and voltage detecting of the 4th resistance R4
The first voltage interface VD+ connection of circuit 110, the negative pole end of first diode D1 are connect with the base terminal of the first triode Q1,
The emitter terminal of first triode Q1 is connect with the second voltage interface VD- of voltage detecting circuit 110, the first triode Q1's
Collector terminal is connect with one end of the 5th resistance R5, and the other end of the 5th resistance R5 is connect with the other end of the 4th resistance R4, the
The base terminal of two triode Q2 is connect with the collector terminal of the first triode Q1, the collector terminal of the second triode Q2 and the 4th electricity
The other end connection of R4 is hindered, the emitter of the second triode Q2 is connect with the input terminal of control chip U1, the second voltage-stabiliser tube ZD2's
Positive terminal is connect with the emitter terminal of the first triode Q1, the base stage of the negative pole end of the second voltage-stabiliser tube ZD2 and the second triode Q2
The output end of end connection, control chip U1 is connect with tertiary voltage interface MCUV+, controls ground terminal and the one or three pole of chip U1
The emitter terminal of pipe Q1 connects, and the 4th voltage interface MCUV- is connect with the emitter terminal of the first triode Q1, first capacitor C1's
One end is connect with the input terminal of control chip U1, and the other end of first capacitor C2 is connect with the emitter terminal of the first triode Q1,
One end of second capacitor C2 is connect with tertiary voltage interface MCUV+, the other end of the second capacitor C2 and the 4th voltage interface
MCUV- connection.
It is understood that first capacitor C1 and/or the second capacitor C2 can be omitted in some other embodiments.
In the present embodiment, power supply circuit 120 receives the first electric signal or the second electric signal of voltage detecting circuit 110,
When receiving the first electric signal, electric current flows to the 4th voltage interface after first diode D1, the first triode Q1
MCUV-, the first triode Q1 conducting, the second triode Q2 cut-off then control chip U1 without output, tertiary voltage interface MCUV+,
4th voltage interface MCUV- Non voltage output, so that the power supply of control circuit is cut off；When receiving the second electric signal, electricity
Stream flows to tertiary voltage interface MCUV+ after the 4th resistance R4, the 5th resistance R5, the second triode Q2, control chip U1,
First triode Q1 cut-off, the second triode Q2 conducting, then controlling chip U1 has output, tertiary voltage interface MCUV+, the 4th electricity
Crimping mouth MCUV- has voltage output, so that control circuit is powered.
In some other embodiments, referring again to Fig. 1 and Fig. 2, low consumable electric control circuit 100 further includes that power supply is called out
Awake circuit 130.Power supply wake-up circuit 130 is connect with power supply circuit 120, and power supply wake-up circuit 130 is used to be in when control circuit
When dormant state, whether the solar panels for detecting solar controller meet charging requirement, if solar panels meet charging requirement,
Control control circuit enters working condition.
Specifically, power supply wake-up circuit 130 includes the 5th voltage interface VP+, the 6th voltage interface VP-, third voltage-stabiliser tube
ZD3, the 6th resistance R6 and isolated location U2.
Wherein, the 5th voltage interface VP+ is used to connect the positive polarity of solar panels, and the 6th voltage interface VP- is for connecting
Connect the voltage cathode of solar panels.
Wherein, it is again provided with positive terminal and negative pole end also referring to Fig. 3, third voltage-stabiliser tube ZD3, but noticeable
It is that the stable voltage of the first voltage-stabiliser tube ZD1, the stable voltage of the second voltage-stabiliser tube ZD2, the stabilization of third voltage-stabiliser tube ZD3 are electric
Pressure value can with it is identical can be different, can freely be arranged according to the actual situation.
Wherein, referring to Figure 7 together, isolated location U2 be photoisolator, photoisolator generally by transmitting, receive and
Signal amplifies three parts and forms, and the electric signal of input drives light emitting diode (LED), is allowed to issue the light of certain wavelength, quilt
Optical detector receives and generates photoelectric current, using exporting after being further amplified, to play the role of input, output, isolation.
In the present embodiment, it is negative to be equipped with input positive terminal ei+, input negative pole end ei-, output cathode end eo+ and output by isolated location U2
Extreme eo-, electric signal is from input positive terminal ei+, input negative pole end ei- input, after electrical-optical-electrical is converted, from output cathode
Hold eo+, output negative pole end eo- output.
Wherein, the 5th voltage interface VP+ is connect with the negative pole end of third voltage-stabiliser tube ZD3, the positive terminal of third voltage-stabiliser tube ZD3
It is connect with one end of the 6th resistance R6, the other end of the 6th resistance R6 is connect with the input positive terminal ei+ of isolated location U1, isolation
The input negative pole end ei- of unit U1 is connect with the 6th voltage interface VP-, the output cathode end eo+ and power supply electricity of isolated location U1
Road 120 connects, and the output negative pole end eo- of isolated location U1 is connect with power supply circuit 120.Specifically, the output of isolated location U1
Positive terminal eo+ is connect with the other end of the 4th resistance R4, the hair of the output negative pole end eo- of isolated location U1 and the first triode Q1
Emitter-base bandgap grading e connection.
In the present embodiment, control circuit in a dormant state when, when solar controller solar panels meet charging
It is required that then the 5th voltage interface VP+, the 6th voltage interface VP- have voltage input, and after isolated location U1, input power supply electricity
Road 120 makes the first triode Q1 become cut-off, the second triode Q2 by conducting and becomes conducting by cut-off, so that control circuit is extensive
Multiple power supply, so that solar controller can enter normal working condition.
Low consumable electric control circuit 100 in the present embodiment detects energy-storage battery by setting voltage detecting circuit 110
Voltage, power supply circuit 120 control the confession of the control circuit of solar controller according to the testing result of voltage detecting circuit 110
Electricity to make the control circuit of solar controller in a dormant state or working condition, and then can be effectively reduced solar energy
Controller from power consumption.
Embodiment two
Fig. 8 is a kind of structural schematic diagram of solar controller provided in an embodiment of the present invention.As shown in figure 8, solar energy
Controller 200 includes described in control circuit 210, solar panels interface 220, energy-storage battery interface 230 and embodiment one
Low consumable electric control circuit 100.
Wherein, solar panels interface 220 is for connecting solar panels, and energy-storage battery interface 230 is for connecting energy storage electricity
Pond, control circuit 210 are connect with solar panels interface 220, energy-storage battery interface 230 respectively, and low consumable electric control circuit 100 divides
It is not connect with energy-storage battery and control circuit 210.
Specifically, solar panels interface 220 is connect with power supply wake-up circuit 130, energy-storage battery interface 230 and voltage detecting
Circuit 110 connects, and power supply circuit 120 is connect with control circuit 210.Voltage detecting circuit 110 is examined by energy-storage battery interface 230
The voltage of energy-storage battery is surveyed, power supply circuit 120 controls the power supply to control circuit 210 according to the voltage of energy-storage battery, also, supplies
Electric wake-up circuit 130 is connect by solar panels interface 220 with solar panels, to wake up power supply circuit 130.
In some other embodiments, solar controller 200 further includes for electrical load interfaces 240, for electrical load interfaces
240 connect with control circuit 210, and control circuit 210 is also used in working condition, control energy-storage battery by connecing for electric loading
Mouth 240 is load supplying.
In some other embodiments, solar controller 200 further includes isolated power supply circuit 250.Isolated power supply circuit
250 connect with solar panels interface 220, energy-storage battery interface 230 respectively.Control circuit 210 passes through isolated power supply circuit 250
It being connect with solar panels interface 220, energy-storage battery interface 230, control circuit 210 is used to control isolated power supply circuit 250, so that
Solar panels carry out constant-current charge to energy-storage battery, until the voltage of energy-storage battery is greater than preset threshold and then stops.
Specifically, also referring to Fig. 9, isolated power supply circuit 250 includes input terminal Vi, third capacitor C3, field-effect tube
MOS1, isolating transformer Lm, the second diode D2, the 4th capacitor C4, current sense resistor R7, the control with current detection function
Integrated circuit IC processed and output end vo.Input terminal Vi is for connecting solar panels interface 220, the both ends of third capacitor C3 and input
The both ends connection of Vi is held, one end of input terminal Vi is connect with one end of the original grade coil of isolating transformer Lm, isolating transformer Lm
Original grade coil the other end and field-effect tube
The drain electrode of MOS1 connects, and the source electrode of field-effect tube MOS1 is connect with the other end of input terminal Vi, field-effect tube MOS1
Grid connect with the control Integrated circuit IC of current detection function, one end of current sense resistor R7 is examined with having electric current
The control Integrated circuit IC of brake connects, and the other end of current sense resistor R7 is connect with the source electrode of field-effect tube MOS1, every
One end of secondary coil from transformer Lm is connect with the positive terminal of the second diode D2, the negative pole end of the second diode D2 with it is defeated
One end of outlet Vo connects, and the other end of the secondary coil of isolating transformer Lm and the other end of output end vo connect, the 4th electricity
The both ends at the both ends and output end vo that hold C4 connect, and output end vo is for connecting energy-storage battery, the control with current detection function
Integrated circuit IC processed is connect with control circuit 210.In the present embodiment, control circuit 210 has current detecting function by control
The control Integrated circuit IC of energy carries out energy-storage battery to control solar panels to control the shutdown of field-effect tube MOS1
Charging, until the voltage of energy-storage battery stops when being greater than preset threshold.
Solar controller 200 in the present embodiment by low consumable electric control circuit 100 respectively with control circuit 210,
Energy-storage battery interface 230 connects, to make control circuit 210 in a dormant state or working condition, and then can be effectively reduced
Solar controller 100 from power consumption.
Embodiment three
Figure 10 is a kind of structural schematic diagram of solar power system provided in an embodiment of the present invention.As shown in Figure 10, should
Solar power system 300 includes the solar controller 200 in embodiment two, further includes solar panels 310, energy-storage battery
320 and load 330.Wherein, solar panels 310 are connect with the solar panels interface 220 of solar controller 200, energy-storage battery
320 connect with the energy-storage battery interface 230 of solar controller 200, and load 330 is with solar controller 200 for electric loading
Interface 240 connects.
Wherein, solar panels 310 are solar cell panel assembly, can convert the solar into electric energy；Energy-storage battery 320
For energy-storage battery component, can be used in storing electric energy；Load 330 is solar power system for charge carrier.
Solar power system 300 in the present embodiment can make control circuit 210 in a dormant state or working condition,
And then can be effectively reduced solar controller 100 from power consumption.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；At this
It under the thinking of invention, can also be combined between the technical characteristic in above embodiments or different embodiment, step can be with
It is realized with random order, and there are many other variations of different aspect present invention as described above, for simplicity, they do not have
Have and is provided in details；Although the present invention is described in detail referring to the foregoing embodiments, the ordinary skill people of this field
Member is it is understood that it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of skill
Art feature is equivalently replaced；And these are modified or replaceed, each reality of the present invention that it does not separate the essence of the corresponding technical solution
Apply the range of a technical solution.
Claims (10)
1. a kind of low consumable electric control circuit characterized by comprising
Voltage detecting circuit is connect for the energy-storage battery with solar controller, detects the voltage of the energy-storage battery, works as institute
When stating the voltage of energy-storage battery higher than preset threshold, the first electric signal is exported, when the voltage of the energy-storage battery is lower than described pre-
If when threshold value, exporting the second electric signal；
Power supply circuit is connect with the voltage detecting circuit, for controlling the solar control according to first electric signal
The control circuit of device in a dormant state, is also used to control the control of the solar controller according to second electric signal
Circuit is in running order.
2. low consumable electric control circuit according to claim 1, which is characterized in that the voltage detecting circuit includes first
Voltage interface, second voltage interface, first resistor, second resistance, 3rd resistor, the first voltage-stabiliser tube and operational amplifier；
One end of the first resistor is connect with the first voltage interface, and the other end of the first resistor is put with the operation
The inverting input terminal connection of big device, one end of the second resistance is connect with the inverting input terminal of the operational amplifier, described
The other end of second resistance is connect with the second voltage interface, and one end of the 3rd resistor and the first voltage interface connect
It connects, the other end of the 3rd resistor is connect with the non-inverting input terminal of the operational amplifier, the cathode of first voltage-stabiliser tube
End is connect with the non-inverting input terminal of the operational amplifier, and the positive terminal of first voltage-stabiliser tube and the second voltage interface connect
Connect, the positive power source terminal of the operational amplifier is connect with the first voltage interface, the negative power end of the operational amplifier with
The second voltage interface connection, the output end of the operational amplifier is for connecting the power supply circuit；
Wherein, the first voltage interface is used to connect the positive polarity of the energy-storage battery, and the second voltage interface is used for
Connect the voltage cathode of the energy-storage battery.
3. low consumable electric control circuit according to claim 1, which is characterized in that the power supply circuit includes tertiary voltage
Interface, the 4th voltage interface, first diode, the 4th resistance, the 5th resistance, the first triode, the second triode, the second pressure stabilizing
Pipe, first capacitor, the second capacitor and control chip；
The positive terminal of the first diode for being connect with the voltage detecting circuit, one end of the 4th resistance with it is described
The positive terminal of first diode connects, and the other end of the 4th resistance is connect with the voltage detecting circuit, and the described 1st
The negative pole end of pole pipe is connect with the base terminal of first triode, and the emitter terminal and the voltage of first triode are examined
Slowdown monitoring circuit connection, the collector terminal of first triode connect with one end of the 5th resistance, the 5th resistance it is another
One end is connect with the other end of the 4th resistance, the collector of the base terminal of second triode and first triode
End connection, the collector terminal of second triode are connect with the other end of the 4th resistance, the hair of second triode
Emitter-base bandgap grading is connect with the input terminal of the control chip, the emitter of the positive terminal of second voltage-stabiliser tube and first triode
End connection, the negative pole end of second voltage-stabiliser tube are connect with the base terminal of second triode, the output of the control chip
End is connect with the tertiary voltage interface, and the ground terminal of the control chip is connect with the emitter terminal of first triode,
4th voltage interface is connect with the emitter terminal of first triode, one end of the first capacitor and the control core
The input terminal of piece connects, and the other end of the first capacitor is connect with the emitter terminal of first triode, second electricity
One end of appearance is connect with the tertiary voltage interface, and the other end of second capacitor is connect with the 4th voltage interface；
Wherein, the tertiary voltage interface is used to connect the positive polarity of the control circuit, and the 4th voltage interface is used for
Connect the voltage cathode of the control circuit.
4. low consumable electric control circuit according to claim 1-3, which is characterized in that the low consumable electric control
Circuit further include:
Power wake-up circuit, connect with the power supply circuit, be used for when the control circuit in a dormant state when, described in detection
Whether the solar panels of solar controller meet charging requirement, if the solar panels meet charging requirement, control the control
Circuit processed enters working condition.
5. low consumable electric control circuit according to claim 4, which is characterized in that the power supply wake-up circuit includes the 5th
Voltage interface, the 6th voltage interface, third voltage-stabiliser tube, the 6th resistance and isolated location；
5th voltage interface is connect with the negative pole end of the third voltage-stabiliser tube, the positive terminal of the third voltage-stabiliser tube with it is described
One end of 6th resistance connects, and the other end of the 6th resistance is connect with the input positive terminal of the isolated location, it is described every
Input negative pole end from unit is connect with the 6th voltage interface, the output cathode end of the isolated location and power supply electricity
Road connection, the output negative pole end of the isolated location is connect with the power supply circuit；
Wherein, the 5th voltage interface is used to connect the positive polarity of the solar panels, and the 6th voltage interface is used for
Connect the voltage cathode of the solar panels.
6. low consumable electric control circuit according to claim 5, which is characterized in that the isolated location is Phototube Coupling
Device.
7. a kind of solar controller, which is characterized in that including control circuit, solar panels interface, energy-storage battery interface and
Low consumable electric control circuit described in any one of claims 1-6；
The solar panels interface is for connecting solar panels, and the energy-storage battery interface is for connecting energy-storage battery, the control
Circuit processed is connect with the solar panels interface, the energy-storage battery interface respectively, the low consumable electric control circuit respectively with
Energy-storage battery is connected with control circuit.
8. solar controller according to claim 7, which is characterized in that the solar controller further include:
Isolated power supply circuit is connect with the solar panels interface, the energy-storage battery interface respectively；
The control circuit is connect by the isolated power supply circuit with the solar panels interface, the energy-storage battery interface,
The control circuit is filled for controlling the isolated power supply circuit so that the solar panels carry out constant current to the energy-storage battery
Electricity, until the voltage of the energy-storage battery is greater than preset threshold and then stops.
9. solar controller according to claim 7, which is characterized in that the isolated power supply circuit include input terminal,
Third capacitor, isolating transformer, the second diode, the 4th capacitor, current sense resistor, has current detecting function at field-effect tube
The control integrated circuit and output end of energy；
The input terminal connects for connecting the solar panels interface, the both ends of the third capacitor and the both ends of the input terminal
Connect, one end of the input terminal is connect with one end of the original grade coil of the isolating transformer, the isolating transformer it is simple
The other end of coil is connect with the drain electrode of the field-effect tube, and the other end of the source electrode of the field-effect tube and the input terminal connects
It connects, the grid of the field-effect tube and the control with current detection function integrate circuit connection, the current detecting electricity
One end of resistance and the control with current detection function integrate circuit connection, the other end of the current sense resistor and institute
State the source electrode connection of field-effect tube, the positive terminal company of one end of the secondary coil of the isolating transformer and second diode
Connect, the negative pole end of second diode is connect with one end of the output end, the secondary coil of the isolating transformer it is another
One end is connect with the other end of the output end, and the both ends of the 4th capacitor are connect with the both ends of the output end, described defeated
Outlet is for connecting the energy-storage battery；
The control integrated circuit with current detection function is connect with the control circuit.
10. a kind of solar power system, which is characterized in that including the described in any item solar controllers of claim 7-9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811011344.7A CN109066952B (en) | 2018-08-31 | 2018-08-31 | Low-self-consumption control circuit, solar controller and solar power generation system |
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| CN201811011344.7A CN109066952B (en) | 2018-08-31 | 2018-08-31 | Low-self-consumption control circuit, solar controller and solar power generation system |
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| CN109066952B CN109066952B (en) | 2021-06-01 |
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| CN109066952B (en) | 2021-06-01 |
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