CN203415997U - Power supply circuit of control circuit of solar energy controller - Google Patents
Power supply circuit of control circuit of solar energy controller Download PDFInfo
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- CN203415997U CN203415997U CN201320207656.1U CN201320207656U CN203415997U CN 203415997 U CN203415997 U CN 203415997U CN 201320207656 U CN201320207656 U CN 201320207656U CN 203415997 U CN203415997 U CN 203415997U
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- control circuit
- module
- voltage stabilizing
- storage battery
- power supply
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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Abstract
The utility model provides a power supply circuit of a control circuit of a solar energy controller. The power supply circuit is characterized by comprising two voltage stabilization modules; a first voltage stabilization module is provided with input, reference and output contacts, wherein the input contact is connected with the anode of a solar cell panel and a storage battery, and the solar cell panel and the storage battery share one anode, the reference contact is connected with the cathode of the storage battery, the grounding point of the power supply module of the control circuit and the input contact of the second voltage stabilization module, and the output contact is connected with the input terminal of the power supply module of the control circuit and the reference contact of the second voltage stabilization module; and the second voltage stabilization module has input, reference and output contacts, wherein the input contact is connected with the cathode of the storage battery, the grounding point of the control circuit and the reference contact of the first voltage stabilization module, the reference contact is connected with the input terminal of the power supply module of the control circuit and the output terminal of the first voltage stabilization module, and the output contact is connected with the cathode of the solar cell panel. The structure is simple, costs are low, the power supply circuit is easy to realize, the continuous work of the solar energy controller is guaranteed, and the controller is protected when power is switched.
Description
Technical field
The utility model belongs to circuit engineering field, relates to the power source supply method of control circuit, CPU and the testing circuit of solar charging/discharging controller, is a kind of method of supplying power to and circuit thereof of controller for solar control circuit.
Background technology
At present solar energy is substantially all taken from storage battery from the power supply of the controller for solar self in net electricity generation system, conventionally the lead acid accumulator all using, because controller for solar oneself power consumption is very little, even if common lead acid accumulator is under under-voltage condition, also can maintain controller and use considerable time, even if solar panel is not because for the moment have the temporary non-transformer of illumination, controller can maintain until solar panel produces electric energy yet, then controls solar energy and charge a battery.But lead acid accumulator is because meeting produces the factors such as environmental pollution, volume weight be larger, 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 the advantages such as few, at solar energy, in net electricity generation system, more applied.But when storage battery is lithium battery; because the built-in baffle of lithium battery is crossed protection automatically while putting at storage battery; namely 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, due to controller dead electricity, even if solar panel has electricity; also uncontrollable solar panel charges to storage battery, and whole solar generating system was lost efficacy.
From the angle of power supply, consider, if adopt the power module power supply to controller for solar as duplicate supply of solar panel and storage battery, make control and the testing circuit of controller after storage battery dead electricity, can utilize solar panel to work on, can have the problem in a lot of circuit design: when 1) solar panel charges a battery, requiring is common positive pole; 2) testing circuit of controller and the negative pole of storage battery need equipotential altogether; 3) voltage of solar panel changes with the variation of solar irradiation, and voltage fluctuation amplitude is larger, 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 from solar panel scope, two kinds of input powers just require independent power supply input circuit; 4), during storage battery dead electricity, control circuit lost efficacy, and now required solar panel to power from trend control circuit; 5) solar panel also will complete the charging work to storage battery when powering to control circuit; For these reasons, consider to adopt solar panel power supply, the restrictive condition of circuit design is a lot, if directly power to the control circuit of controller after 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
Problem to be solved in the utility model is: solar energy is in net electricity generation system, when controller for solar control circuit is powered, once storage battery quits work, whole control circuit will dead electricity, controller is uncontrollable to charge to storage battery, also cannot from solar panel, directly obtain electric energy; Causing whole solar generating system to lose efficacy cannot restart automatically.
The technical solution of the utility model is: a kind of power supply circuits of controller for solar control circuit, be provided with two Voltage stabilizing modules, wherein:
The first Voltage stabilizing module is provided with input, benchmark and three contacts of output:
Input contact is connected with the positive pole of solar panel and storage battery;
Reference-junction with the negative pole of storage battery, the input contact of the earth point of control circuit power module and the second Voltage stabilizing module be connected;
Output contact is connected with the input of control circuit power module and the reference-junction of the second Voltage stabilizing module;
The second Voltage stabilizing module is provided with input, benchmark and three contacts of output:
Input contact is connected with the reference-junction of the negative pole of storage battery, the earth point of control circuit power module and the first Voltage stabilizing module;
Reference-junction is connected with input and the first Voltage stabilizing module output of control circuit power module;
Output contact is connected with the negative pole of solar panel.
Between the solar panel negative pole of power supply circuits and battery terminal negative, be connected with charging module.
One end of charging module connects battery terminal negative, the reference-junction of the first Voltage stabilizing module, the earth point of the input contact of the second Voltage stabilizing module and control circuit power module, and the other end connects solar panel negative pole and the second Voltage stabilizing module output contact.
Described storage battery is lithium battery.
Powerup issue for controller for solar control circuit, consider various design conditions and design cost, the utility model provides a kind of simple in structure, with low cost, method of supplying power to and circuit of being easy to the controller for solar control circuit realized, when storage battery can normally be exported electric energy, the power supply of controller is taken from storage battery; When storage battery turn-offs output, transfer to by solar panel and powering, even night solar panel temporarily there is no 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, while 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 if the situation of dead electricity temporarily appears in whole controller for solar, also can automatically recover very soon, 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 is also the power supply of a variation, for example the lithium battery of 12V is output as 0-15V, so just should be noted that input line when solar cell is connected to controller with storage battery is connected and can not makes mistakes, otherwise can burn out because of the not adaptive of voltage controller, the utility model by the first Voltage stabilizing module and the second Voltage stabilizing module by 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 if the more important thing is the input line wrong of solar panel and storage battery, also can not cause the damage of controller controling circuit, so this circuit can also be avoided causing controller to damage because of the wiring error of controller.
The utility model comprises lithium battery at the controller for solar of interior various storage batterys applicable to use, maintains the work of controller for solar control circuit when storage battery dead electricity.
Accompanying drawing explanation
Fig. 1 is block diagram of the present utility model.
Fig. 2 is the circuit diagram of an embodiment of the utility model.
Embodiment
The utility model 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 to the power module of control circuit, power by lithium battery; also can to the power module of control circuit, power by solar panel; thereby in the situation that lithium battery Cross prevention plate discharge switch B disconnects; as long as solar cell panel voltages reaches certain value; the 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 reaches electric discharge recovery voltage, lithium battery Cross prevention plate discharge switch B auto-closing, lithium battery starts as the power supply of control circuit power module.
As shown in Figure 1, circuit control circuit power module of the present utility model, two Voltage stabilizing modules,
The first Voltage stabilizing module is provided with input, benchmark and three contacts of output:
A1) input contact is connected with the positive pole of solar panel and storage battery;
B1) reference-junction with the negative pole of storage battery, the input contact of the earth point of control circuit power module and the second Voltage stabilizing module be connected;
C1) output contact is connected with the input of control circuit power module and the reference-junction of the second Voltage stabilizing module;
The second Voltage stabilizing module is provided with input, benchmark and three contacts of output:
A2) input contact is connected with the reference-junction of the negative pole of storage battery, the earth point of control circuit power module and the first Voltage stabilizing module;
B2) reference-junction is connected with input and the first Voltage stabilizing module output of control circuit power module;
C2) output contact is connected with the negative pole of solar panel.
Between the solar panel negative pole of power supply circuits and battery terminal negative, be connected with charging module.One end of charging module connects battery terminal negative, the reference-junction of the first Voltage stabilizing module, the earth point of the input contact of the second Voltage stabilizing module and control circuit power module, and the other end connects solar panel negative pole and the second Voltage stabilizing module output contact.When storage battery dead electricity, control circuit power module obtains electric energy by solar panel, after control circuit is started working, control circuit is controlled charging module work, make solar panel to charge in batteries, after charge in batteries, storage battery continues to power to control circuit power module; Wherein the earth point of control circuit power module and the negative pole of storage battery are connected, and altogether, make both equipotentials, detect the voltage of storage battery for control circuit.
In Fig. 1, the direction of arrow represents that solar panel, storage battery are to control circuit power module current supply circuit.When storage battery is powered to controller for solar, electric current flows out from the positive pole of storage battery, through the first Voltage stabilizing module, control circuit power module, flow into the negative pole of storage battery, the now pressure drop on the first Voltage stabilizing module is V1, pressure drop on 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, through the first Voltage stabilizing module, control circuit power module, the second Voltage stabilizing module, flow into the negative pole of solar panel, the now pressure drop on the first Voltage stabilizing module is V1, pressure drop on the second Voltage stabilizing module is V2, pressure drop on 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 voltage is separately how many, according to circuit of the present utility model, 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 reaches the voltage charging a battery, charging module is opened, and the voltage of solar panel and storage battery are substantially equal.
In the situation that lithium battery Cross prevention plate discharge switch B disconnects, solar cell panel voltages passes to control circuit power module after processing by Voltage stabilizing module, controller obtain electric after, solar panel by charging module to lithium cell charging.When lithium battery reaches electric discharge recovery voltage, lithium battery Cross prevention plate discharge switch B auto-closing, lithium battery recovers to power to control circuit power module.
The utlity model has following characteristics:
1), in the situation that lithium battery Cross prevention plate discharge switch disconnects, solar panel can be given the power supply of control circuit power module automatically.
2) controller obtain electric after, open charging module lithium battery charged, when lithium battery reaches electric discharge during recovery voltage, lithium battery protection board discharge switch B auto-closing, lithium battery starts as the power supply of control circuit power module.
3) existing controller is in the wiring misconnection of solar panel during at controller input; controller power source partly can burn because of bearing high voltage; the Voltage stabilizing module of the utility model circuit can be treated to solar cell panel voltages a stable voltage supply control circuit power module, thus effective protection controller.
Below by a specific embodiment, the utility model is described.
As shown in Figure 2, circuit comprises the first Voltage stabilizing module, the second Voltage stabilizing module, control circuit power module and charging module.The first described Voltage stabilizing module is by R1, and Q1, D4 forms, and has three contacts, respectively with 1) positive pole of solar cell and lithium battery is connected; 2) be connected with one end of charging module, one end of the second Voltage stabilizing module, the reference edge of control circuit power module and the negative pole of storage battery; 3) one end of control circuit power module input, the second Voltage stabilizing module is connected.The second described Voltage stabilizing module is by R2, and Q2, D2, D3 forms, and has three contacts, respectively with 1) one end of the first Voltage stabilizing module, the input of control circuit power module be connected; 2) be connected with cathode of lithium battery, the reference edge of control circuit power module, the reference edge of the first Voltage stabilizing module be, one end of charge control module; 3) negative pole of solar cell is, one end of charging module is connected.
The output of the first described Voltage stabilizing module and the benchmark of the second Voltage stabilizing module are connected on the input of control circuit power module jointly, the reference edge of control circuit power module is connected 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, is connected respectively with solar cell negative pole with cathode of lithium battery.In the situation that lithium battery Cross prevention plate discharge switch B disconnects; once solar array voltage reaches certain value; solar array voltage passes to control circuit power module after processing by Voltage stabilizing module; controller CPU obtain electric after; control switch A is closed, solar cell by charging module to lithium cell charging.When lithium battery reaches electric discharge recovery voltage, lithium battery Cross prevention plate discharge switch B auto-closing, lithium battery recovers normal power supply.
The utility model 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, by solar panel, provide power supply, maintain the work of controller for solar control circuit, again to charge in batteries, realize after storage battery dead electricity automatically the restarting of control circuit.
Claims (4)
1. power supply circuits for controller for solar control circuit, is characterized in that being provided with two Voltage stabilizing modules, wherein:
The first Voltage stabilizing module is provided with input, benchmark and three contacts of output:
Input contact is connected with the positive pole of solar panel and storage battery, and solar panel and storage battery are anodal altogether;
Reference-junction with the negative pole of storage battery, the input contact of the earth point of control circuit power module and the second Voltage stabilizing module be connected;
Output contact is connected with the input of control circuit power module and the reference-junction of the second Voltage stabilizing module;
The second Voltage stabilizing module is provided with input, benchmark and three contacts of output:
Input contact is connected with the reference-junction of the negative pole of storage battery, the earth point of control circuit power module and the first Voltage stabilizing module;
Reference-junction is connected with input and the first Voltage stabilizing module output of control circuit power module;
Output contact is connected with the negative pole of solar panel.
2. the power supply circuits of a kind of controller for solar control circuit according to claim 1, is characterized in that being connected with charging module between solar panel negative pole and battery terminal negative.
3. the power supply circuits of a kind of controller for solar control circuit according to claim 2, the one end that it is characterized in that charging module connects battery terminal negative, the reference-junction of the first Voltage stabilizing module, the earth point of the input contact of the second Voltage stabilizing module and control circuit power module, and the other end connects solar panel negative pole and the second Voltage stabilizing module output contact.
4. according to the power supply circuits of a kind of controller for solar control circuit described in claim 1-3 any one, it is characterized in that described storage battery is lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320207656.1U CN203415997U (en) | 2013-04-22 | 2013-04-22 | Power supply circuit of control circuit of solar energy controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320207656.1U CN203415997U (en) | 2013-04-22 | 2013-04-22 | Power supply circuit of control circuit of solar energy controller |
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| Publication Number | Publication Date |
|---|---|
| CN203415997U true CN203415997U (en) | 2014-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320207656.1U Withdrawn - After Issue CN203415997U (en) | 2013-04-22 | 2013-04-22 | Power supply circuit of control circuit of solar energy controller |
Country Status (1)
| Country | Link |
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| CN (1) | CN203415997U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236725A (en) * | 2013-04-22 | 2013-08-07 | 南京普天大唐信息电子有限公司 | Power supply method of solar controller control circuit and circuit thereof |
| CN106026338A (en) * | 2016-06-12 | 2016-10-12 | 深圳硕日新能源科技有限公司 | Power supply circuit capable of realizing dormant state of solar controller |
| CN107889330A (en) * | 2017-12-14 | 2018-04-06 | 宁波绿光能源科技有限公司 | A kind of integral solar energy street lamp self-excited circuit |
| CN112968514A (en) * | 2020-08-20 | 2021-06-15 | 合肥海尔智能电子有限公司 | Power supply circuit and frequency conversion equipment |
-
2013
- 2013-04-22 CN CN201320207656.1U patent/CN203415997U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236725A (en) * | 2013-04-22 | 2013-08-07 | 南京普天大唐信息电子有限公司 | Power supply method of solar controller control circuit and circuit thereof |
| CN106026338A (en) * | 2016-06-12 | 2016-10-12 | 深圳硕日新能源科技有限公司 | Power supply circuit capable of realizing dormant state of solar controller |
| CN106026338B (en) * | 2016-06-12 | 2018-05-22 | 深圳硕日新能源科技有限公司 | A kind of power circuit of achievable controller for solar dormancy |
| CN107889330A (en) * | 2017-12-14 | 2018-04-06 | 宁波绿光能源科技有限公司 | A kind of integral solar energy street lamp self-excited circuit |
| CN112968514A (en) * | 2020-08-20 | 2021-06-15 | 合肥海尔智能电子有限公司 | Power supply circuit and frequency conversion equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140129 Effective date of abandoning: 20150520 |
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| RGAV | Abandon patent right to avoid regrant |