CN102565602A - Solar battery polarity reverse detection circuit - Google Patents
Solar battery polarity reverse detection circuit Download PDFInfo
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- CN102565602A CN102565602A CN2010106105460A CN201010610546A CN102565602A CN 102565602 A CN102565602 A CN 102565602A CN 2010106105460 A CN2010106105460 A CN 2010106105460A CN 201010610546 A CN201010610546 A CN 201010610546A CN 102565602 A CN102565602 A CN 102565602A
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- resistance
- solar cell
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- reversal connection
- solar battery
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Abstract
The invention discloses a solar battery polarity reverse detection circuit which is provided with an optical coupler U1, a resistor R1 and a resistor R2, wherein a pin 1 of U1 is connected with a cathode input end S- of a solar battery, a pin 2 of U1 is connected with one end of the resistor R1, the other end of the resistor R1 is connected with an anode input end S+ of the solar battery, a pin 3 of U1 is connected with a BGND (Battery Grounding End) of a cathode input end of a storage battery, one end of the resistor R2 is connected with a power source +VB2, and the other end of the resistor R2 and a pin 4 of U1 are connected with a signal output end PVInverseFlag. The solar battery polarity reverse detection circuit can output information on whether the solar battery is in polarity reverse through the signal output end, and is simple in structure and precise in detection.
Description
Technical field
The present invention relates to the solar charging controller technology, particularly relate to a kind of solar cell reversal connection testing circuit.
Background technology
Solar charging controller is used for the whole process control of solar cell to battery charging process, in use, if misoperation; Cause accumulator positive, the negative polarity reversal connection of controller input end, the perhaps positive and negative polarity reversal connection of the solar cell of controller input end, perhaps both positive and negative polarity reversal connections simultaneously; Like this in charging process; Can cause solar cell that accumulator is carried out the generation of reverse charging accident, the consequence that causes is gently then to damage accumulator; Heavy then produce strong spark discharge; Have a strong impact on the serviceable life of accumulator, more serious meeting causes that accumulator is overheated blasts, and generation with the personal safety accident very easily causes any property loss.And present existing solar charging controller does not all have the reverse connecting protection measure of this respect, has potential safety hazard.
Not enough to prior art, so provide a kind of solar cell reversal connection testing circuit very necessary.
Summary of the invention
The objective of the invention is to avoid the weak point of prior art and a kind of solar cell reversal connection testing circuit that can detect solar cell reversal connection signal is provided.
The object of the invention is realized through following technical measures.
A kind of solar cell reversal connection testing circuit is provided with light idol U1, resistance R 1 and resistance R 2;
1 pin of U1 is connected with the negative input S-of solar cell; 2 pin of U1 are connected with an end of resistance R 1; The other end of resistance R 1 is connected with the electrode input end S+ of solar cell; 3 pin of U1 are connected with the negative input BGND of accumulator, and an end of resistance R 2 is connected with power supply+VB2, and 4 pin of the other end of resistance R 2, U1 are connected with output signal end PVInverseFlag.
The model of said optocoupler idol U1 is TLP521.
Said resistance R 1 is 200～100000 ohm.
Said resistance R 1 is 5100 ohm.
Said resistance R 2 is 1000～200000 ohm.
Said resistance R 2 is 10000 ohm.
A kind of solar cell reversal connection testing circuit of the present invention is provided with light idol U1, resistance R 1 and resistance R 2; 1 pin of U1 is connected with the negative input S-of solar cell; 2 pin of U1 are connected with an end of resistance R 1; The other end of resistance R 1 is connected with the electrode input end S+ of solar cell; 3 pin of U1 are connected with the negative input BGND of accumulator, and an end of resistance R 2 is connected with power supply+VB2, and 4 pin of the other end of resistance R 2, U1 are connected with output signal end PVInverseFlag.This solar cell reversal connection testing circuit can be through the signal output part output solar cell information of reversal connection whether, and circuit structure is simple, and detects accurately.
Description of drawings
Utilize accompanying drawing that the present invention is further described, but the content in the accompanying drawing does not constitute any restriction of the present invention.
Fig. 1 is a kind of solar cell reversal connection testing circuit circuit diagram of the present invention.
Embodiment
In conjunction with following examples the present invention is further described.
A kind of solar cell reversal connection testing circuit, as shown in Figure 1, be provided with light idol U1, resistance R 1 and resistance R 2.
1 pin of U1 is connected with the negative input S-of solar cell; 2 pin of U1 are connected with an end of resistance R 1; The other end of resistance R 1 is connected with the electrode input end S+ of solar cell; 3 pin of U1 are connected with the negative input BGND of accumulator, and an end of resistance R 2 is connected with power supply+VB2, and 4 pin of the other end of resistance R 2, U1 are connected with output signal end PVInverseFlag.
Wherein, the model of light idol U1 is TLP521, and resistance R 1 is 200～100000 ohm, and preferred resistance resistance R 1 is 5100 ohm.Resistance R 2 is 1000～200000 ohm, and preferred resistance R 2 is 10000 ohm.
When the solar cell reversal connection, the output signal end PVInverseFlag of light idol U1 outputs signal to processor, and processor will be taked corresponding control measures, prevent the influence that the solar cell reversal connection is caused.Adopt the light idol U1 of TLP521, detect more accurate.
Solar cell reversal connection testing circuit of the present invention, circuit structure is simple, and is with low cost.
Should be noted that at last; Above embodiment is only in order to technical scheme of the present invention to be described but not to the restriction of protection domain of the present invention; Although the present invention has been done detailed description with reference to preferred embodiment; Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the essence and the scope of technical scheme of the present invention.
Claims (6)
1. a solar cell reversal connection testing circuit is characterized in that: be provided with light idol U1, resistance R 1 and resistance R 2;
1 pin of U1 is connected with the negative input S-of solar cell; 2 pin of U1 are connected with an end of resistance R 1; The other end of resistance R 1 is connected with the electrode input end S+ of solar cell; 3 pin of U1 are connected with the negative input BGND of accumulator, and an end of resistance R 2 is connected with power supply+VB2, and 4 pin of the other end of resistance R 2, U1 are connected with output signal end PVInverseFlag.
2. solar cell reversal connection testing circuit according to claim 1 is characterized in that: the model of said optocoupler idol U1 is TLP521.
3. solar cell reversal connection testing circuit according to claim 1 is characterized in that: said resistance R 1 is 200～100000 ohm.
4. solar cell reversal connection testing circuit according to claim 3 is characterized in that: said resistance R 1 is 5100 ohm.
5. solar cell reversal connection testing circuit according to claim 1 is characterized in that: said resistance R 2 is 1000～200000 ohm.
6. solar cell reversal connection testing circuit according to claim 5 is characterized in that: said resistance R 2 is 10000 ohm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106105460A CN102565602A (en) | 2010-12-29 | 2010-12-29 | Solar battery polarity reverse detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106105460A CN102565602A (en) | 2010-12-29 | 2010-12-29 | Solar battery polarity reverse detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102565602A true CN102565602A (en) | 2012-07-11 |
Family
ID=46411520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106105460A Pending CN102565602A (en) | 2010-12-29 | 2010-12-29 | Solar battery polarity reverse detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102565602A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063972A (en) * | 2012-12-20 | 2013-04-24 | 江苏宏宝电子有限公司 | Photovoltaic grid-connected inverter direct current reverse-connection prevention detection system |
| CN103323732A (en) * | 2013-06-19 | 2013-09-25 | 上海正泰电源***有限公司 | Photovoltaic inverter multi-channel input reverse connection detection circuit with self-diagnostic function |
| CN104777394A (en) * | 2014-01-13 | 2015-07-15 | 东莞钜威新能源有限公司 | Line connection sequence detection circuit |
Citations (6)
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| CN2257103Y (en) * | 1995-10-13 | 1997-06-25 | 中南工学院 | Intelligent switch power type quick charger |
| CN1897396A (en) * | 2006-06-06 | 2007-01-17 | 北京理工大学 | Multiple separated charger for discriminating battery polar automatically |
| CN101197505A (en) * | 2007-12-18 | 2008-06-11 | 浙江机电职业技术学院 | DC equi-partition device for charging battery |
| CN101226012A (en) * | 2007-01-19 | 2008-07-23 | 李建民 | System and method for using hot pipe ground heat energy as well as application |
| CN201263083Y (en) * | 2008-09-21 | 2009-06-24 | 阮承渭 | Universal renovation charger for electric vehicle |
| CN201917631U (en) * | 2010-12-29 | 2011-08-03 | 广东易事特电源股份有限公司 | Solar battery inverted connection detecting circuit |
-
2010
- 2010-12-29 CN CN2010106105460A patent/CN102565602A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2257103Y (en) * | 1995-10-13 | 1997-06-25 | 中南工学院 | Intelligent switch power type quick charger |
| CN1897396A (en) * | 2006-06-06 | 2007-01-17 | 北京理工大学 | Multiple separated charger for discriminating battery polar automatically |
| CN101226012A (en) * | 2007-01-19 | 2008-07-23 | 李建民 | System and method for using hot pipe ground heat energy as well as application |
| CN101197505A (en) * | 2007-12-18 | 2008-06-11 | 浙江机电职业技术学院 | DC equi-partition device for charging battery |
| CN201263083Y (en) * | 2008-09-21 | 2009-06-24 | 阮承渭 | Universal renovation charger for electric vehicle |
| CN201917631U (en) * | 2010-12-29 | 2011-08-03 | 广东易事特电源股份有限公司 | Solar battery inverted connection detecting circuit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063972A (en) * | 2012-12-20 | 2013-04-24 | 江苏宏宝电子有限公司 | Photovoltaic grid-connected inverter direct current reverse-connection prevention detection system |
| CN103323732A (en) * | 2013-06-19 | 2013-09-25 | 上海正泰电源***有限公司 | Photovoltaic inverter multi-channel input reverse connection detection circuit with self-diagnostic function |
| CN103323732B (en) * | 2013-06-19 | 2017-02-08 | 上海正泰电源***有限公司 | Photovoltaic inverter multi-channel input reverse connection detection circuit with self-diagnostic function |
| CN104777394A (en) * | 2014-01-13 | 2015-07-15 | 东莞钜威新能源有限公司 | Line connection sequence detection circuit |
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Application publication date: 20120711 |