CN103236725A - Power supply method of solar controller control circuit and circuit thereof - Google Patents
Power supply method of solar controller control circuit and circuit thereof Download PDFInfo
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- CN103236725A CN103236725A CN2013101420655A CN201310142065A CN103236725A CN 103236725 A CN103236725 A CN 103236725A CN 2013101420655 A CN2013101420655 A CN 2013101420655A CN 201310142065 A CN201310142065 A CN 201310142065A CN 103236725 A CN103236725 A CN 103236725A
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Abstract
The invention provides a power supply method of a solar controller control circuit and a circuit thereof. A control circuit power module is powered by a storage battery by arranging a voltage-stabilizing module, or the control circuit power module is powered by a solar battery panel. Under the condition that the storage battery has a power failure, after being processed by the voltage-stabilizing module, the solar battery panel voltage is transmitted to the control circuit power module, after a controller is electrified, the solar battery panel charges the storage battery through a charging module, and when the storage battery reaches discharge restoring voltage, the storage battery restores to power the control circuit power module. The circuit is simple in structure, low in cost and easy to realize, continuous work of a solar controller is ensured, and the controller can be protected during power supply switching.
Description
Technical field
The invention belongs to the circuit engineering field, relate to the power source supply method of control circuit, CPU and the testing circuit of solar charging/discharging controller, be a kind of method of supplying power to and circuit thereof of controller for solar control circuit.
Background technology
Solar energy substantially all is taken from storage battery from the controller for solar its own power source in the net electricity generation system at present, the common lead acid accumulator that all uses, because the controller for solar oneself power consumption is very little, even common lead acid accumulator is under under-voltage condition, also can keep controller and use considerable time, even solar panel does not produce electric energy because have the temporary non-transformer of illumination, controller can keep up to solar panel for the moment yet, control solar energy again and charge a battery.But lead acid accumulator is owing to can produce factors such as environmental pollution, volume weight are bigger, and its application is restricted.
Along with the development of lithium battery technology, and price further drops, and lithium battery is little with its volume, pollute advantages such as few, obtains more applications at solar energy in the net electricity generation system.But when storage battery is lithium battery; because the built-in baffle of lithium battery is crossed protection automatically when putting at storage battery; just when the degree of depth is under-voltage, can thoroughly turn-off output; make the whole dead electricity of controller for solar; CPU and charge-discharge control circuit and various testing circuit are not all worked, because the controller dead electricity, even solar panel has; also uncontrollable solar panel charges to storage battery, and whole solar generating system was lost efficacy.
Consider from the angle of power supply, give the power module power supply of controller for solar as duplicate supply if adopt solar panel and storage battery, make control and the testing circuit of controller can utilize solar panel to work on after the storage battery dead electricity, can have the problem on a lot of circuit design: requiring when 1) solar panel charges a battery is common positive pole; 2) negative pole of the testing circuit of controller and storage battery needs equipotential altogether; 3) voltage of solar panel changes with the variation of solar irradiation, and the voltage fluctuation amplitude is bigger, can be from 0 to 70V as the solar cell panel voltages of 24V controller system, and this just requires from the input voltage range of the circuit of solar panel power taking very wide; And the voltage of storage battery is different with the solar panel scope, and two kinds of input power supplys just require independent power supply input circuit; 4) during the storage battery dead electricity, control circuit lost efficacy, and require solar panel to power from the trend control circuit this moment; 5) solar panel also will be finished the charging work to storage battery when powering to control circuit; For these reasons, consider to adopt the solar panel power supply, the restrictive condition of circuit design is a lot, if directly power for the control circuit of controller after the voltage stabilizing separately solar panel and storage battery, circuit can be very complicated, increase a lot of additional circuits, and circuit cost is higher.
Summary of the invention
The problem to be solved in the present invention is: solar energy is in the net electricity generation system, when the controller for solar control circuit was powered, in case storage battery quits work, the The whole control circuit will dead electricity, controller is uncontrollable to charge to storage battery, also can't directly obtain electric energy from solar panel; Causing whole solar generating system to lose efficacy can't restart automatically.
Technical scheme of the present invention is: a kind of method of supplying power to of controller for solar control circuit, two Voltage stabilizing modules are set, and realize powering to the control circuit power module by storage battery or solar panel:
When storage battery was powered to the control circuit power module, electric current flowed out from the positive pole of storage battery, and the negative pole through first Voltage stabilizing module, control circuit power module inflow storage battery makes the voltage of control circuit power module remain on stationary value V by first Voltage stabilizing module;
When solar panel is powered to the control circuit power module, electric current flows out from the positive pole of solar panel, negative pole through first Voltage stabilizing module, control circuit power module, second Voltage stabilizing module inflow solar panel makes the voltage of control circuit power module remain on stationary value V by first Voltage stabilizing module and second Voltage stabilizing module;
Wherein the reference edge of first Voltage stabilizing module connects the output of control circuit power module, and the reference edge of second Voltage stabilizing module connects the input of control circuit power module.
When the storage battery dead electricity, the control circuit power module obtains electric energy by solar panel, after control circuit is started working, the work of control circuit control charging module, make solar panel to charge in batteries, after charge in batteries finished, storage battery continued to power to the control circuit power module; Wherein the earth point of control circuit power module links to each other with the negative pole of storage battery, makes both equipotentials, is used for the voltage that control circuit detects storage battery.
Described storage battery is lithium battery.
A kind of power supply circuits of controller for solar control circuit are provided with two Voltage stabilizing modules, wherein:
First Voltage stabilizing module is provided with input, benchmark and three contacts of output:
The input contact links to each other with the positive pole of solar panel and storage battery;
Reference-junction links to each other with the negative pole of storage battery, the earth point of control circuit power module and the input contact of second Voltage stabilizing module;
Output contact links to each other with the input of control circuit power module and the reference-junction of second Voltage stabilizing module;
Second Voltage stabilizing module is provided with input, benchmark and three contacts of output:
The input contact links to each other with the negative pole of storage battery, the earth point of control circuit power module and the reference-junction of first Voltage stabilizing module;
Reference-junction links to each other with input and the first Voltage stabilizing module output of control circuit power module;
Output contact links to each other with the negative pole of solar panel.
Be connected with charging module between the solar panel negative pole of power supply circuits and the battery terminal negative.
One end of charging module connects battery terminal negative, the reference-junction of first Voltage stabilizing module, the input contact of second Voltage stabilizing module and the earth point of control circuit power module, and the other end connects solar panel negative pole and the second Voltage stabilizing module output contact.
Powerup issue at the controller for solar control circuit, consider various designing requirements and design cost, the invention provides a kind of method of supplying power to and circuit of simple in structure, with low cost, the controller for solar control circuit that is easy to realize, when storage battery can normally be exported electric energy, the power supply of controller was taken from storage battery; When storage battery turn-offs output, then transfer to by solar panel and powering, even night solar panel temporarily do not have electric energy, irradiation along with the sun on daytime, solar panel can generate electricity, when the voltage at solar panel two ends reaches certain value, the power supply circuits of controller just can be resumed work, wake controller up and enter operating state, and open charging module, to charge in batteries, when being charged to certain voltage, storage battery recovers output, and controller for solar can continue to use the electric energy of storage battery.Like this, even the situation of dead electricity temporarily appears in whole controller for solar, also can very fast automatic recovery, guaranteed the continuous firing of solar generating system.
In addition, because the output voltage of solar panel is the power supply of a variation, for 12V and the self-reacting controller for solar of 24V, the voltage range of solar panel is 0-70V, and the voltage of storage battery also is the power supply of a variation, for example the lithium battery of 12V is output as 0-15V, so just should be noted that the input line when solar cell is connected to controller with storage battery is connected and can not makes mistakes, otherwise can burn out controller because of voltage not adaptive.The present invention by first Voltage stabilizing module and second Voltage stabilizing module with the input voltage stabilizing of controller controling circuit a low voltage, storage battery and solar panel share a part of voltage stabilizing circuit, simplified circuit structure, even the more important thing is the input line wrong with solar panel and storage battery, this circuit also can not cause the damage of controller controling circuit, so can also be avoided causing controller to damage because of the wiring error of controller.
The present invention comprises lithium battery at the controller for solar of interior various storage batterys applicable to use, keeps the work of controller for solar control circuit when the storage battery dead electricity.
Description of drawings
Fig. 1 is block diagram of the present invention.
Fig. 2 is the circuit diagram of one embodiment of the invention.
Embodiment
The present invention proposes a kind of method of supplying power to and circuit of controller for solar control circuit; be particularly useful for lithium battery as the situation of storage battery; both can be by the power module power supply of lithium battery to control circuit; also can be by the power module power supply of solar panel to control circuit; thereby cross under the situation of putting baffle discharge switch B disconnection at lithium battery; as long as solar cell panel voltages reaches certain value; control circuits such as controller are resumed work; open charging module, and then solar panel charges to lithium battery by charging module.When lithium battery reached the discharge recovery voltage, lithium battery was crossed and is put baffle discharge switch B auto-closing, and lithium battery begins to be the power supply of control circuit power module.
As shown in Figure 1, circuit control circuit power module of the present invention, two Voltage stabilizing modules,
First Voltage stabilizing module is provided with input, benchmark and three contacts of output:
A1) the input contact links to each other with the positive pole of solar panel and storage battery;
B1) reference-junction links to each other with the negative pole of storage battery, the earth point of control circuit power module and the input contact of second Voltage stabilizing module;
C1) output contact links to each other with the input of control circuit power module and the reference-junction of second Voltage stabilizing module;
Second Voltage stabilizing module is provided with input, benchmark and three contacts of output:
A2) the input contact links to each other with the negative pole of storage battery, the earth point of control circuit power module and the reference-junction of first Voltage stabilizing module;
B2) reference-junction links to each other with input and the first Voltage stabilizing module output of control circuit power module;
C2) output contact links to each other with the negative pole of solar panel.
Be connected with charging module between the solar panel negative pole of power supply circuits and the battery terminal negative.One end of charging module connects battery terminal negative, the reference-junction of first Voltage stabilizing module, the input contact of second Voltage stabilizing module and the earth point of control circuit power module, and the other end connects solar panel negative pole and the second Voltage stabilizing module output contact.When the storage battery dead electricity, the control circuit power module obtains electric energy by solar panel, after control circuit is started working, the work of control circuit control charging module, make solar panel to charge in batteries, after charge in batteries finished, storage battery continued to power to the control circuit power module; Wherein the earth point of control circuit power module links to each other with the negative pole of storage battery, and altogether, makes both equipotentials, is used for the voltage that control circuit detects storage battery.
The direction of arrow represents solar panel, storage battery to control circuit power module current supply circuit among Fig. 1.When storage battery is powered to controller for solar, electric current flows out from the positive pole of storage battery, flow into the negative pole of storage battery through first Voltage stabilizing module, control circuit power module, this moment, the pressure drop on first Voltage stabilizing module was V1, pressure drop on the control circuit power module is V, and the voltage of storage battery is V1+V; When solar panel is powered to controller for solar, electric current flows out from the positive pole of solar panel, flow into the negative pole of solar panel through first Voltage stabilizing module, control circuit power module, second Voltage stabilizing module, this moment, the pressure drop on first Voltage stabilizing module was V1, pressure drop on second Voltage stabilizing module is V2, pressure drop on the control circuit power module is V, and the voltage of solar cell is V1+V2+V.Therefore no matter be storage battery power supply or solar panel power supply, and how much voltage separately is, in a circuit according to the invention, can be by adjusting the circuit parameter of Voltage stabilizing module, make the voltage V of control circuit power module keep a stationary value, the conversion of two kinds of supply power modes can not bring damage to controller yet.And when the voltage of solar panel reached the voltage that charges a battery, charging module was opened, and the voltage of solar panel and storage battery are equal substantially.
Cross at lithium battery and to put under the situation that baffle discharge switch B disconnects, solar cell panel voltages passes to the control circuit power module after handling by Voltage stabilizing module, controller get electric after, solar panel is given lithium cell charging by charging module.When lithium battery reached the discharge recovery voltage, lithium battery was crossed and is put baffle discharge switch B auto-closing, and lithium battery recovers to power to the control circuit power module.
The present invention has following characteristics:
1) cross under the situation of putting the disconnection of baffle discharge switch at lithium battery, solar panel can be given the power supply of control circuit power module automatically.
2) controller get electric after, open charging module lithium battery charged, when lithium battery reaches discharge during recovery voltage, it is the power supply of control circuit power module that li-ion cell protection plate discharge switch B auto-closing, lithium battery begin.
3) existing controller is in the wiring misconnection of solar panel during at the controller input; controller power source partly can burn because of bearing high voltage; the Voltage stabilizing module of circuit of the present invention can be treated to solar cell panel voltages a stable voltage supply control circuit power module, thereby effectively protects controller.
Below by a specific embodiment the present invention is described.
As shown in Figure 2, circuit comprises first Voltage stabilizing module, second Voltage stabilizing module, control circuit power module and charging module.Described first Voltage stabilizing module is by R1, and Q1, D4 forms, and three contacts is arranged, respectively with 1) positive pole of solar cell and lithium battery links to each other; 2) link to each other with an end of charging module, an end of second Voltage stabilizing module, the reference edge of control circuit power module and the negative pole of storage battery; 3) end of control circuit power module input, second Voltage stabilizing module links to each other.Described second Voltage stabilizing module is by R2, and Q2, D2, D3 forms, and three contacts is arranged, respectively with 1) end of first Voltage stabilizing module, the input of control circuit power module link to each other; 2) link to each other with cathode of lithium battery, the reference edge of control circuit power module, the reference edge of first Voltage stabilizing module, an end of charge control module; 3) end of the negative pole of solar cell, charging module links to each other.
The benchmark of the output of described first Voltage stabilizing module and second Voltage stabilizing module is connected on the input of control circuit power module jointly, the reference edge of control circuit power module links to each other with the negative pole of lithium battery, the CPU that exports to controller for solar of control circuit power module, control circuit, testing circuit power supply.
Described charging module has two contacts, links to each other with cathode of lithium battery with the solar cell negative pole respectively.Cross under the situation of putting baffle discharge switch B disconnection at lithium battery; in case solar array voltage reaches certain value; solar array voltage passes to the control circuit power module after handling by Voltage stabilizing module; controller CPU get electric after; control switch A closure, solar cell is given lithium cell charging by charging module.When lithium battery reached the discharge recovery voltage, lithium battery was crossed and is put baffle discharge switch B auto-closing, and lithium battery recovers normal power supply.
The present invention is applicable to use and comprises lithium battery at the controller for solar of interior various storage batterys, when the situation of storage battery generation dead electricity, provide power supply by solar panel, keep the work of controller for solar control circuit, again to charge in batteries, after realizing the storage battery dead electricity, the restarting automatically of control circuit.
Claims (7)
1. the method for supplying power to of a controller for solar control circuit is characterized in that arranging two Voltage stabilizing modules, realizes powering to the control circuit power module by storage battery or solar panel:
When storage battery was powered to the control circuit power module, electric current flowed out from the positive pole of storage battery, and the negative pole through first Voltage stabilizing module, control circuit power module inflow storage battery makes the voltage of control circuit power module remain on stationary value V by first Voltage stabilizing module;
When solar panel is powered to the control circuit power module, electric current flows out from the positive pole of solar panel, negative pole through first Voltage stabilizing module, control circuit power module, second Voltage stabilizing module inflow solar panel makes the voltage of control circuit power module remain on stationary value V by first Voltage stabilizing module and second Voltage stabilizing module;
Wherein the reference edge of first Voltage stabilizing module connects the output of control circuit power module, and the reference edge of second Voltage stabilizing module connects the input of control circuit power module.
2. the method for supplying power to of a kind of controller for solar control circuit according to claim 1, it is characterized in that when the storage battery dead electricity, the control circuit power module obtains electric energy by solar panel, after control circuit is started working, the work of control circuit control charging module, make solar panel to charge in batteries, after charge in batteries finished, storage battery continued to power to the control circuit power module; Wherein the earth point of control circuit power module links to each other with the negative pole of storage battery, makes both equipotentials, is used for the voltage that control circuit detects storage battery.
3. the method for supplying power to of a kind of controller for solar control circuit according to claim 1 is characterized in that described storage battery is lithium battery.
4. the power supply circuits of a controller for solar control circuit is characterized in that being provided with two Voltage stabilizing modules, wherein:
First Voltage stabilizing module is provided with input, benchmark and three contacts of output:
The input contact links to each other with the positive pole of solar panel and storage battery, and solar panel and storage battery are anodal altogether;
Reference-junction links to each other with the negative pole of storage battery, the earth point of control circuit power module and the input contact of second Voltage stabilizing module;
Output contact links to each other with the input of control circuit power module and the reference-junction of second Voltage stabilizing module;
Second Voltage stabilizing module is provided with input, benchmark and three contacts of output:
The input contact links to each other with the negative pole of storage battery, the earth point of control circuit power module and the reference-junction of first Voltage stabilizing module;
Reference-junction links to each other with input and the first Voltage stabilizing module output of control circuit power module;
Output contact links to each other with the negative pole of solar panel.
5. the power supply circuits of a kind of controller for solar control circuit according to claim 4 is characterized in that being connected with charging module between solar panel negative pole and the battery terminal negative.
6. the power supply circuits of a kind of controller for solar control circuit according to claim 5, an end that it is characterized in that charging module connects battery terminal negative, the reference-junction of first Voltage stabilizing module, the input contact of second Voltage stabilizing module and the earth point of control circuit power module, and the other end connects solar panel negative pole and the second Voltage stabilizing module output contact.
7. according to the power supply circuits of each described a kind of controller for solar control circuit of claim 4-6, it is characterized in that described storage battery is lithium battery.
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| CN201310142065.5A CN103236725B (en) | 2013-04-22 | 2013-04-22 | Power supply method of solar controller control circuit and circuit thereof |
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| CN201310142065.5A CN103236725B (en) | 2013-04-22 | 2013-04-22 | Power supply method of solar controller control circuit and circuit thereof |
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| CN103236725B CN103236725B (en) | 2015-05-20 |
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Cited By (4)
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| CN106289564A (en) * | 2016-07-25 | 2017-01-04 | 北京新能源汽车股份有限公司 | Temperature detection circuit for electric heating system controller of electric automobile |
| CN108370172A (en) * | 2015-12-15 | 2018-08-03 | 未来实验室株式会社 | Charging unit |
| CN108494114A (en) * | 2018-01-26 | 2018-09-04 | 合肥驼峰电子科技发展有限公司 | Using the MM wave therapeutic instrument of a variety of power supply modes |
| CN109698523A (en) * | 2019-03-08 | 2019-04-30 | 四川长虹集能阳光科技有限公司 | Photovoltaic energy storage inversion system |
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