CN105449820A - Solar charging threshold value voltage design method - Google Patents
Solar charging threshold value voltage design method Download PDFInfo
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- CN105449820A CN105449820A CN201510893035.7A CN201510893035A CN105449820A CN 105449820 A CN105449820 A CN 105449820A CN 201510893035 A CN201510893035 A CN 201510893035A CN 105449820 A CN105449820 A CN 105449820A
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- voltage
- solar panels
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- threshold voltage
- solar
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a solar charging threshold value voltage design method. The specific implementation of the method comprises a solar panel, a solar panel voltage detection control circuit, a voltage reduction charging circuit, a voltage boosting charging circuit and a storage battery; the solar panel voltage detection control circuit detects the voltage of the solar panel, and controls the voltage reduction charging circuit and the voltage boosting charging circuit to charge the storage battery according to the detection result; when the solar panel voltage detection control circuit detects that the voltage of the solar panel is higher than the threshold value voltage, the voltage reduction charging circuit is started in a delayed manner; and when the solar panel voltage detection control circuit detects that the voltage of the solar panel is lower than the threshold value voltage, the voltage boosting charging circuit is started in a delayed manner. The solar charging threshold value voltage design method is more reasonable and capable of effectively utilizing solar energy for charging.
Description
Technical field
The invention belongs to solar recharging control treatment technology, particularly relate to a kind of method for designing of solar recharging threshold voltage.
Background technology
Day by day rare along with earth resource, increasing energy investment cost, and various safety and pollution problem are ubiquitous.Solar energy is as the safety of a kind of " inexhaustible ", and environmental protection and new forms of energy more and more come into one's own.How the more effective solar energy that utilizes carries out charging the problem that will become photovoltaic industry practitioner and constantly study.
Tradition solar recharging mostly is voltage-dropping type charging, stops charging, effectively do not utilize solar energy to charge after solar panels voltage is lower than certain set point.
Summary of the invention
For solving the problem, more rationally, effectively utilize solar energy to charge, the technical solution used in the present invention is a kind of solar recharging threshold voltage designs method.
Technical scheme of the present invention comprises the following steps: a kind of solar recharging threshold voltage designs method, its step: described solar panels voltage detecting and controling circuit detects solar panels voltage, and charges to storage battery according to its testing result controlled hypotension charging circuit and boost charge circuit; When solar panels voltage detecting and controling circuit detects solar panels voltage higher than this threshold voltage delayed startup step-down charging circuit; When solar panels voltage detecting and controling circuit detects solar panels voltage lower than this threshold voltage delayed startup boost charge circuit.
The circuit of this solar recharging threshold voltage designs method comprises solar panels, solar panels voltage detecting and controling circuit, step-down charging circuit, boost charge circuit, storage battery; Described solar panels voltage detecting and controling circuit is connected to solar panels, for detecting solar panels voltage; Described solar panels connect step-down charging circuit and boost charge circuit; The output of described step-down charging circuit and boost charge circuit is connected to storage battery; Described step-down charging circuit and boost charge circuit are subject to the control of solar panels voltage detecting and controling circuit.
Described solar voltage detection control circuit comprises resistance R1, R2, R3 and main control chip MCU; Described resistance R3 is that charging current detects resistance, and be connected with solar panels negative pole and MCU the 4th pin, during charging, MCU the 4th pin can detect R3 both end voltage and calculate charging current; Described main control chip MCU can pre-set charge threshold voltage according to project particular geographic location; Described resistance R1, R2 are solar panels voltage detecting divider resistance, R1 and R2 series connection access solar panels two ends, a termination MCU the 3rd pin that R1 and R2 is connected, after MCU the 3rd pin voltage and the interior threshold voltage benchmark arranged of main control chip MCU compare, judge it is start step-down charging circuit or boost charge circuit by main control chip MCU; Described main control chip MCU is by detecting solar panels voltage and charging current adjustment charging circuit start-up study time.
Described step-down charging circuit comprises switching tube Q1, diode D1, inductance L 1; MCU the 6th pin of described solar panels voltage detecting and controling circuit and the grid of switching tube Q1, the source electrode of Q1 connects solar panels positive pole, the drain electrode of Q1 connects the positive pole of the negative pole of diode D1 and another termination storage battery of L1, L1, and the negative pole of storage battery is connected with the positive pole of D1 and is connected to R3.
Described boost charge circuit comprises switching tube Q2, diode D2, inductance L 2; MCU the 5th pin of described solar panels voltage detecting and controling circuit and the grid of switching tube Q2, the drain electrode of Q2 is connected to solar panels positive pole by L2, and the drain electrode of Q2 connects D2 positive pole, and the negative pole of D2 connects the positive pole of storage battery, and the source electrode of Q2 connects the negative pole of storage battery.
1 pin of described MCU and 2 pin are feeder ear, are connected to positive pole and the negative pole of storage battery respectively.
The design of the resistance value of adjusting resistance R1, R2 also adjustable charge threshold voltage, when R1 resistance increases or R2 resistance reduces, charge threshold voltage reduces, and when R2 resistance increases or R1 resistance reduces, charge threshold voltage raises.
Advantage of the present invention: more rationally, effectively utilize solar energy to charge.
Accompanying drawing explanation
Fig. 1 is the concrete case study on implementation circuit diagram of solar recharging threshold voltage designs method of the present invention;
Fig. 2 is the flow chart of solar recharging threshold voltage designs method of the present invention.
Embodiment
A kind of solar recharging threshold voltage designs method, concrete implementing circuit comprises solar panels 01, solar panels voltage detecting and controling circuit 02, step-down charging circuit 03, boost charge circuit 04, storage battery 05.Described solar panels voltage detecting and controling circuit 02 detects solar panels voltage, and charges according to its testing result controlled hypotension charging circuit 03 and boost charge circuit 04 pair of storage battery 05.
Described step-down charging circuit 03 comprises switching tube Q1, diode D1, inductance L 1; MCU the 6th pin of described solar panels voltage detecting and controling circuit 02 and the grid of switching tube Q1, the source electrode of Q1 connects solar panels positive pole, the drain electrode of Q1 connects the positive pole of the negative pole of diode D1 and another termination storage battery of L1, L1, and the negative pole of storage battery is connected with the positive pole of D1 and is connected to R3.
Described boost charge circuit 04 comprises switching tube Q2, diode D2, inductance L 2; MCU the 5th pin of described solar panels voltage detecting and controling circuit 02 and the grid of switching tube Q2, the drain electrode of Q2 is connected to solar panels positive pole by L2, and the drain electrode of Q2 connects D2 positive pole, and the negative pole of D2 connects the positive pole of storage battery, and the source electrode of Q2 connects the negative pole of storage battery.
Described solar panels voltage detecting and controling circuit 02 comprises resistance R1, R2, R3 and main control chip MCU; Described resistance R3 is that charging current detects resistance, and be connected with solar panels negative pole and MCU the 4th pin, when charging normal, MCU the 4th pin can detect R3 both end voltage and calculate charging current; Described main control chip MCU can pre-set charge threshold voltage according to project particular geographic location; Described resistance R1, R2 are solar panels voltage detecting divider resistance, R1 and R2 series connection access solar panels two ends, a termination MCU the 3rd pin that R1 and R2 is connected, after MCU the 3rd pin voltage and the interior threshold voltage benchmark arranged of main control chip MCU compare, judge it is start step-down charging circuit or boost charge circuit by main control chip MCU; Described main control chip MCU is by detecting solar panels voltage and charging current adjustment charging circuit start-up study time.
1 pin of described MCU and 2 pin are feeder ear, are connected to positive pole and the negative pole of storage battery respectively.
The design of the resistance value of suitable adjusting resistance R1, R2 also adjustable charge threshold voltage, when R1 resistance increases or R2 resistance reduces, charge threshold voltage reduces, and when R2 resistance increases or R1 resistance reduces, charge threshold voltage raises.
Claims (7)
1. a solar recharging threshold voltage designs method, its step:
Described solar panels voltage detecting and controling circuit detects solar panels voltage, and charges to storage battery according to its testing result controlled hypotension charging circuit and boost charge circuit;
When solar panels voltage detecting and controling circuit detects solar panels voltage higher than this threshold voltage delayed startup step-down charging circuit; When solar panels voltage detecting and controling circuit detects solar panels voltage lower than this threshold voltage delayed startup boost charge circuit.
2. solar recharging threshold voltage designs method according to claim 1, is characterized in that: the circuit of the method comprises solar panels (01), solar panels voltage detecting and controling circuit (02), step-down charging circuit (03), boost charge circuit (04), storage battery (05); Described solar panels voltage detecting and controling circuit (02) is connected to solar panels (01), for detecting solar panels voltage; Described solar panels (01) connect step-down charging circuit (03) and boost charge circuit (04); The output of described step-down charging circuit (03) and boost charge circuit (04) is connected to storage battery (05); Described step-down charging circuit (03) and boost charge circuit (04) are by the control of solar panels voltage detecting and controling circuit (02).
3. solar recharging threshold voltage designs method according to claim 1, is characterized in that: described solar voltage detection control circuit comprises resistance R1, R2, R3 and main control chip MCU; Described resistance R3 is that charging current detects resistance, and be connected with solar panels negative pole and MCU the 4th pin, during charging, MCU the 4th pin can detect R3 both end voltage and calculate charging current; Described main control chip MCU can pre-set charge threshold voltage according to project particular geographic location; Described resistance R1, R2 are solar panels voltage detecting divider resistance, R1 and R2 series connection access solar panels two ends, a termination MCU the 3rd pin that R1 and R2 is connected, after MCU the 3rd pin voltage and the interior threshold voltage benchmark arranged of main control chip MCU compare, judge it is start step-down charging circuit or boost charge circuit by main control chip MCU; Described main control chip MCU is by detecting solar panels voltage and charging current adjustment charging circuit start-up study time.
4. solar recharging threshold voltage designs method according to claim 1, is characterized in that: described step-down charging circuit (03) comprises switching tube Q1, diode D1, inductance L 1; MCU the 6th pin of described solar panels voltage detecting and controling circuit (02) and the grid of switching tube Q1, the source electrode of Q1 connects solar panels positive pole, the drain electrode of Q1 connects the positive pole of the negative pole of diode D1 and another termination storage battery of L1, L1, and the negative pole of storage battery is connected with the positive pole of D1 and is connected to R3.
5. solar recharging threshold voltage designs method according to claim 1, is characterized in that: described boost charge circuit (04) comprises switching tube Q2, diode D2, inductance L 2; MCU the 5th pin of described solar panels voltage detecting and controling circuit (02) and the grid of switching tube Q2, the drain electrode of Q2 is connected to solar panels positive pole by L2, and the drain electrode of Q2 connects D2 positive pole, and the negative pole of D2 connects the positive pole of storage battery, and the source electrode of Q2 connects the negative pole of storage battery.
6. solar recharging threshold voltage designs method according to claim 1, is characterized in that: 1 pin of described MCU and 2 pin are feeder ear, is connected to positive pole and the negative pole of storage battery respectively.
7. solar recharging threshold voltage designs method according to claim 1, it is characterized in that: the design of the resistance value of adjusting resistance R1, R2 also adjustable charge threshold voltage, when R1 resistance increases or R2 resistance reduces, charge threshold voltage reduces, and when R2 resistance increases or R1 resistance reduces, charge threshold voltage raises.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510893035.7A CN105449820A (en) | 2015-12-08 | 2015-12-08 | Solar charging threshold value voltage design method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510893035.7A CN105449820A (en) | 2015-12-08 | 2015-12-08 | Solar charging threshold value voltage design method |
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| CN105449820A true CN105449820A (en) | 2016-03-30 |
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| CN201510893035.7A Pending CN105449820A (en) | 2015-12-08 | 2015-12-08 | Solar charging threshold value voltage design method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201194339Y (en) * | 2008-04-29 | 2009-02-11 | 王皓 | Solar energy controller |
| US20110260676A1 (en) * | 2010-04-27 | 2011-10-27 | Babu Jain | Method and apparatus for controlling a solar panel output in charging a battery |
| CN204518192U (en) * | 2015-05-06 | 2015-07-29 | 范德涛 | Intelligence is followed spot energy-saving illumination road lamp device |
-
2015
- 2015-12-08 CN CN201510893035.7A patent/CN105449820A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201194339Y (en) * | 2008-04-29 | 2009-02-11 | 王皓 | Solar energy controller |
| US20110260676A1 (en) * | 2010-04-27 | 2011-10-27 | Babu Jain | Method and apparatus for controlling a solar panel output in charging a battery |
| CN204518192U (en) * | 2015-05-06 | 2015-07-29 | 范德涛 | Intelligence is followed spot energy-saving illumination road lamp device |
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Application publication date: 20160330 |
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