CN202840588U - Reverse leakage protection system of solar charger - Google Patents
Reverse leakage protection system of solar charger Download PDFInfo
- Publication number
- CN202840588U CN202840588U CN 201220446918 CN201220446918U CN202840588U CN 202840588 U CN202840588 U CN 202840588U CN 201220446918 CN201220446918 CN 201220446918 CN 201220446918 U CN201220446918 U CN 201220446918U CN 202840588 U CN202840588 U CN 202840588U
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- CN
- China
- Prior art keywords
- resistor
- solar
- protection system
- cell
- reverse leakage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005286 illumination Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000007812 deficiency Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
Images
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a reverse leakage protection system of a solar charger, comprising a solar cell panel, a resistor R1 and a resistor R2. The solar cell panel is connected with the resistor R1 and the resistor R2; two switch diodes S1 and S2 are arranged between the resistor R1 and the resistor R2; and a cell is accessed to the whole circuit to complete a whole charging circuit. The two switch diodes S1 and S2 are connected in a back-to-back mode. The utility model provides the beneficial effects as following: when illumination is insufficient and the voltage of the solar cell panel is reduced lower than the voltage of the cell, the back-to-back switch diodes enable a solar charging source to be cut off from the cell, electric energy in the cell is prevented from flowing out, and wattless consumption of the electric energy of the cell is minimized.
Description
Technical field
The utility model relates to a kind of protection system of charger, particularly relates to a kind of reverse leakage protection system of solar charger.
Background technology
Reverse leakage is a kind of phenomenon that power supply is lost and be back to the electric charge stored in the battery.The reverse leakage phenomenon appears when cell voltage is higher than power supply.When this phenomenon occurring, power supply just becomes the load of battery, no longer battery is charged.This state can not appear when using wall power source adapter or USB power supply, because the Voltage-output of these two kinds of power supplys remains on the lithium ion power supply voltage.When using solar panel, the voltage of solar panels can in the situation that the illumination deficiency be reduced to below the cell voltage.
The utility model content
The purpose of this utility model is the reverse leakage protection system that a kind of solar charger will be provided, and can be down to cell voltage at solar panels voltage and the solar charging power supply be disconnected when following from battery, prevents that electric energy flows out in the battery.
For achieving the above object, the technical solution of the utility model is:
A kind of reverse leakage protection system of solar charger; comprise solar panel, resistance R 1, R2, described solar panel contact resistance R1, R2; two switch body diode S1 and S2 are set between described resistance R 1 and the R2, and whole circuit access battery is finished whole charge circuit.
Further, described two switch body diode S1 and S2 connected mode are formula back-to-back.
The beneficial effects of the utility model are: when the voltage of solar panels can be in the situation that the illumination deficiency be reduced to cell voltage when following, formula switch body diode can make the solar charging power supply disconnect from battery back-to-back, prevent that electric energy flows out in the battery, reduce the reactive power consumption of battery power.
Description of drawings
Fig. 1 is circuit diagram of the present utility model;
Circuit diagram when Fig. 2 is traditional USB power source charges.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described:
Circuit diagram when being traditional USB power source charges such as Fig. 2, the Voltage-output of power supply remains on the lithium ion power supply voltage, and when switch body diode S1 closed, power supply disconnected from battery, the battery no current.
The reverse leakage protection system of a kind of solar charger as shown in Figure 1; comprise solar panel; resistance R 1, R2; solar panel contact resistance R1, R2; two switch body diode S1 and S2 are set between described resistance R 1 and the R2, and whole circuit access battery is finished whole charge circuit.Two switch body diode S1 and S2 connected mode are formula back-to-back.When the voltage of solar panel in the situation that the illumination deficiency is reduced to cell voltage when following, because what use is formula switch back-to-back, switch body diode S1 opens, then switch body diode S2 closes, this moment, the solar charging power supply disconnected from battery, prevent that electric energy flows out in the battery, reduce the reactive power consumption of battery power.
Claims (2)
1. the reverse leakage protection system of a solar charger; comprise solar panel; resistance R 1, R2; it is characterized in that: described solar panel contact resistance R1, R2; two switch body diode S1 and S2 are set between described resistance R 1 and the R2, and whole circuit access battery consists of whole charge circuit.
2. the reverse leakage protection system of solar charger according to claim 1 is characterized in that: described two switch body diode S1 and S2 connected mode are formula back-to-back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220446918 CN202840588U (en) | 2012-09-04 | 2012-09-04 | Reverse leakage protection system of solar charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220446918 CN202840588U (en) | 2012-09-04 | 2012-09-04 | Reverse leakage protection system of solar charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202840588U true CN202840588U (en) | 2013-03-27 |
Family
ID=47952204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220446918 Expired - Fee Related CN202840588U (en) | 2012-09-04 | 2012-09-04 | Reverse leakage protection system of solar charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202840588U (en) |
-
2012
- 2012-09-04 CN CN 201220446918 patent/CN202840588U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20130904 |