CN203151170U - Solar charging power supply - Google Patents
Solar charging power supply Download PDFInfo
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- CN203151170U CN203151170U CN 201320128396 CN201320128396U CN203151170U CN 203151170 U CN203151170 U CN 203151170U CN 201320128396 CN201320128396 CN 201320128396 CN 201320128396 U CN201320128396 U CN 201320128396U CN 203151170 U CN203151170 U CN 203151170U
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- power supply
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- power input
- comparator
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Abstract
The utility model discloses a solar charging power supply comprising a power supply input end, a power indicating circuit, a charging indicating circuit, a lithium battery and a power output interface. The power supply input end is connected with an input end of the power indicating circuit. The power supply input end is connected with the power output interface via the charging indicating circuit and the lithium battery in order. According to the solar charging power supply, a function of indicating whether the charging of a rechargeable battery is completed and a function of preventing the reverse discharging, overcharging and overdischarging of the rechargeable battery are effectively realized, the solar charging power supply has the advantages of simple structure and low cost, and the solar charging power supply is convenient to use by a user and is applied to a solar charging power supply product.
Description
Technical field
The utility model relates to a kind of charge power supply, relates in particular to a kind of solar recharging power supply.
Background technology
Traditional solar recharging power supply is after by solar cell luminous energy being converted into electric energy battery to be charged, and these batteries mainly are that sour battery, voltage mostly are 12V.The acid battery is a kind of tradition battery commonly used.Its price is lower, but weight is heavier, fearness overcharges, was afraid of to put, has memory function, self-discharge performance is poor.Therefore be inappropriate at this solar recharging power supply of some local uses.Lithium ion battery is a kind of new rechargeable battery of development after sour battery.It is in light weight, capacity is big, be not afraid of and put, need not consider that memory function, self-discharge performance are good.This battery is widely used now.Also begin to adopt this battery at the solar recharging power supply, but connected mode all is direct connection generally that a lot of products are not made indication to the charging result of lithium battery on the market yet, makes user and do not know whether lithium battery charges and finish.To preventing that lithium battery from may occur to the solar cell back discharge and overcharge and enough measures are not taked in the protection of output short-circuit yet, user's use and safety are brought inconvenience and unfavorable.
The utility model content
In order to solve the problems of the technologies described above, the purpose of this utility model provides and a kind ofly can prevent super-charge super-discharge, and a kind of solar recharging power supply that can point out charging to finish.
The technical scheme that the utility model adopts is:
A kind of solar recharging power supply, comprise power input, incoming call indicating circuit, charging indication, lithium battery and power output interface, described power input is connected with the input of incoming call indicating circuit, and described power input is connected with power output interface by charging indication, lithium battery successively.
Be further used as preferred embodiment, described incoming call indicating circuit comprises first light-emitting diode and first resistance, the positive terminal of described power input is connected with the positive terminal of first light-emitting diode, and the negative pole end of described first light-emitting diode is connected with the negative pole end of power input by first resistance.
Be further used as preferred embodiment, described charging indication comprises second light-emitting diode, second resistance, the 3rd resistance, the 4th resistance, comparator, potentiometer and anti-reverse discharge circuit, the positive terminal of described power input is connected with the positive terminal of second light-emitting diode, the negative pole end of described second light-emitting diode is connected with the output of comparator by second resistance, the positive terminal of described power input is connected with the inverting input of comparator by the 3rd resistance, the inverting input of described comparator is connected with the negative pole end of power input by the 4th resistance, the positive terminal of described power input is connected with the input of anti-reverse discharge circuit, the output of described anti-reverse discharge circuit is connected with the negative pole end of power input by potentiometer, the normal phase input end of described comparator is connected with the controlled end of potentiometer, the power end of described comparator is connected with the positive terminal of power input, the earth terminal of described comparator is connected with the negative pole end of power input, described lithium battery also is connected in the potentiometer two ends, the positive terminal of described power output interface is connected with the positive terminal of lithium battery, and the negative pole end of described power output interface is connected with the negative pole end of lithium battery.
Be further used as preferred embodiment, described anti-reverse discharge circuit comprises diode, and the input of described anti-reverse discharge circuit is the positive terminal of diode, and the output of described anti-reverse discharge circuit is the negative pole end of diode.
Be further used as preferred embodiment, described comparator is voltage comparator.
Be further used as preferred embodiment, described lithium battery is provided with additives for overcharge protection circuit and short-circuit protection circuit.
Be further used as preferred embodiment, described power input is solar cell.
The beneficial effects of the utility model are:
The utility model can realize effectively preventing that rechargeable battery is to the solar cell back discharge when solar cell does not have output or voltage to be lower than lithium battery voltage; lithium battery is provided with additives for overcharge protection circuit and short-circuit protection circuit; when lithium battery is full of electricity; the starting of anti-overcharge protective circuit is also cut off charging current, the charging of lithium battery can not produced overcharge; charging indicator light also extinguishes this moment thereupon; the expression charging finishes; the starting output of cutting off the electricity supply automatically of anti-short-circuit protection circuit protects lithium battery and circuit can not suffer damage when the output short-circuit of charge power supply.A kind of solar recharging power supply architecture of the utility model is simple, and cost is lower, is user-friendly to.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
Fig. 1 is the module diagram of a kind of solar recharging power supply of the utility model;
Fig. 2 is the circuit diagram of a kind of solar recharging power supply of the utility model.
Embodiment
Fig. 1 is the module diagram of a kind of solar recharging power supply of the utility model, a kind of solar recharging power supply of the utility model, comprise power input, incoming call indicating circuit, charging indication, lithium battery and power output interface, described power input is connected with the input of incoming call indicating circuit, and described power input is connected with power output interface by charging indication, lithium battery successively.
Fig. 2 is the circuit diagram of a kind of solar recharging power supply of the utility model, described incoming call indicating circuit comprises first LED 1 and first resistance R 1, the positive terminal of described power input is connected with the positive terminal of first LED 1, and the negative pole end of described first LED 1 is connected with the negative pole end of power input by first resistance R 1.
Be further used as preferred embodiment, described charging indication comprises second LED 2, second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, comparator C OMP, potentiometer W and anti-reverse discharge circuit, the positive terminal of described power input is connected with the positive terminal of second LED 2, the negative pole end of described second LED 2 is connected with the output of comparator C OMP by second resistance R 2, the positive terminal of described power input is connected with the inverting input of comparator C OMP by the 3rd resistance R 3, the inverting input of described comparator C OMP is connected with the negative pole end of power input by the 4th resistance R 4, the positive terminal of described power input is connected with the input of anti-reverse discharge circuit, the output of described anti-reverse discharge circuit is connected with the negative pole end of power input by potentiometer W, the normal phase input end of described comparator C OMP is connected with the controlled end of potentiometer W, the power end of described comparator C OMP is connected with the positive terminal of power input, the earth terminal of described comparator C OMP is connected with the negative pole end of power input, described lithium battery also is connected in potentiometer W two ends, the positive terminal of described power output interface is connected with the positive terminal of lithium battery, and the negative pole end of described power output interface is connected with the negative pole end of lithium battery.
Be further used as preferred embodiment, described anti-reverse discharge circuit comprises diode D, and the input of described anti-reverse discharge circuit is the positive terminal of diode D, and the output of described anti-reverse discharge circuit is the negative pole end of diode D.
Be further used as preferred embodiment, described comparator C OMP is voltage comparator.
Be further used as preferred embodiment, described lithium battery is provided with additives for overcharge protection circuit and short-circuit protection circuit.
Be further used as preferred embodiment, described power input is solar cell.
The concrete course of work of the present utility model is as follows:
When solar cell is subjected to illumination, luminous energy is converted into electric energy, electric energy is imported from power input, comes this moment first LED, 1 meeting of electrical indicator luminous, when lithium battery is not full of electricity, the electric energy of input charges to lithium battery, the electric current diode D that flows through forms pressure drop, causes the voltage of normal phase input end to be lower than the voltage of inverting input, comparator C OMP output low level, 2 conductings of second LED are luminous, and expression is just in charged state; When lithium cell charging finishes or does not load onto lithium battery, diode D does not have electric current to pass through, do not form pressure drop on the diode D, the voltage of the normal phase input end of comparator C OMP is higher than the voltage of inverting input, comparator C OMP exports high level, second LED 2 is not luminous, and the expression charging finishes or do not load onto lithium battery.Diode D has the sampled voltage that no current flows through except indication is provided by pressure drop, can also when output or voltage are not lower than lithium battery voltage, prevent that lithium battery from oppositely to the solar-electricity tank discharge, playing the effect of an isolation at solar cell.
More than be that preferable enforcement of the present utility model is specified, but the utility model is created and is not limited to described embodiment, those of ordinary skill in the art make all equivalent variations or replacement also can doing under the prerequisite of the utility model spirit, the distortion that these are equal to or replace all is included in the application's claim institute restricted portion.
Claims (7)
1. solar recharging power supply, it is characterized in that: comprise power input, incoming call indicating circuit, charging indication, lithium battery and power output interface, described power input is connected with the input of incoming call indicating circuit, and described power input is connected with power output interface by charging indication, lithium battery successively.
2. a kind of solar recharging power supply according to claim 1, it is characterized in that: described incoming call indicating circuit comprises first light-emitting diode (LED1) and first resistance (R1), the positive terminal of described power input is connected with the positive terminal of first light-emitting diode (LED1), and the negative pole end of described first light-emitting diode (LED1) is connected with the negative pole end of power input by first resistance (R1).
3. a kind of solar recharging power supply according to claim 1, it is characterized in that: described charging indication comprises second light-emitting diode (LED2), second resistance (R2), the 3rd resistance (R3), the 4th resistance (R4), comparator (COMP), potentiometer (W) and anti-reverse discharge circuit, the positive terminal of described power input is connected with the positive terminal of second light-emitting diode (LED2), the negative pole end of described second light-emitting diode (LED2) is connected with the output of comparator (COMP) by second resistance (R2), the positive terminal of described power input is connected with the inverting input of comparator (COMP) by the 3rd resistance (R3), the inverting input of described comparator (COMP) is connected with the negative pole end of power input by the 4th resistance (R4), the positive terminal of described power input is connected with the input of anti-reverse discharge circuit, the output of described anti-reverse discharge circuit is connected with the negative pole end of power input by potentiometer (W), the normal phase input end of described comparator (COMP) is connected with the controlled end of potentiometer (W), the power end of described comparator (COMP) is connected with the positive terminal of power input, the earth terminal of described comparator (COMP) is connected with the negative pole end of power input, described lithium battery also is connected in potentiometer (W) two ends, the positive terminal of described power output interface is connected with the positive terminal of lithium battery, and the negative pole end of described power output interface is connected with the negative pole end of lithium battery.
4. a kind of solar recharging power supply according to claim 3, it is characterized in that: described anti-reverse discharge circuit comprises diode (D), the input of described anti-reverse discharge circuit is the positive terminal of diode (D), and the output of described anti-reverse discharge circuit is the negative pole end of diode (D).
5. a kind of solar recharging power supply according to claim 3, it is characterized in that: described comparator (COMP) is voltage comparator.
6. according to each described a kind of solar recharging power supply of claim 1-5, it is characterized in that: described lithium battery is provided with additives for overcharge protection circuit and short-circuit protection circuit.
7. according to each described a kind of solar recharging power supply of claim 1-5, it is characterized in that: described power input is solar cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320128396 CN203151170U (en) | 2013-03-20 | 2013-03-20 | Solar charging power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320128396 CN203151170U (en) | 2013-03-20 | 2013-03-20 | Solar charging power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203151170U true CN203151170U (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320128396 Expired - Fee Related CN203151170U (en) | 2013-03-20 | 2013-03-20 | Solar charging power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203151170U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108272181A (en) * | 2018-03-23 | 2018-07-13 | 佛山科学技术学院 | A kind of solar energy armband |
-
2013
- 2013-03-20 CN CN 201320128396 patent/CN203151170U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108272181A (en) * | 2018-03-23 | 2018-07-13 | 佛山科学技术学院 | A kind of solar energy armband |
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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: 20130821 Termination date: 20140320 |