CN206790152U - A kind of low-cost solar plate overcharge protection circuit - Google Patents
A kind of low-cost solar plate overcharge protection circuit Download PDFInfo
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- CN206790152U CN206790152U CN201720465672.9U CN201720465672U CN206790152U CN 206790152 U CN206790152 U CN 206790152U CN 201720465672 U CN201720465672 U CN 201720465672U CN 206790152 U CN206790152 U CN 206790152U
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- triode
- solar panels
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- resistor
- protection circuit
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Abstract
The utility model discloses a kind of low-cost solar plate overcharge protection circuit, including external solar panels, rechargeable battery and overcharge protection circuit, overcharge protection circuit includes first resistor, second resistance, 3rd resistor, charging capacitor, triode, unilateral diode and voltage-regulator diode, first resistor is connected to after being connected with charging capacitor between the positive pole and negative pole of external solar panels, the colelctor electrode of triode is connected to by second resistance on the positive pole of external solar panels, the emitter stage of triode is connected to the positive pole of rechargeable battery, the base stage of triode is connected to the positive pole of unilateral diode and the negative pole of unilateral diode after voltage-regulator diode by being grounded, 3rd resistor is connected in the base stage of triode and the positive pole of external solar panels.Structure setting of the present utility model is reasonable, can reduce cost of manufacture, reaches and overcharges protection purpose, solves the technical deficiency that traditional solar panels voltage change is easily damaged greatly battery.
Description
Technical field
The utility model belongs to solar panels protection technique field, and in particular to a kind of low-cost solar plate overcharges protection
Circuit.
Background technology
With development in science and technology, solar panels are constantly entered among family, and solar panels fill to mobile battery
Electricity is also increasingly popularized, but solar panels voltage change is big, is easily caused over-charging of battery influence battery life and is easily damaged battery,
So overcharge protection circuit must be increased using solar panels as battery charger, to ensure battery life, so applicability
It is restricted with practicality.
The content of the invention
The purpose of this utility model is to provide the low-cost solar plate that a kind of structure setting is reasonable and stability in use is good
Overcharge protection circuit, it is intended to solve the technical deficiency that traditional solar panels voltage change is easily damaged greatly battery.
The technical scheme for realizing the utility model purpose is a kind of low-cost solar plate overcharge protection circuit, including external
Solar panels and rechargeable battery, the rechargeable battery are connected with the external solar panels, the external solar panels with
There is overcharge protection circuit between rechargeable battery, the overcharge protection circuit includes first resistor, second resistance, 3rd resistor, filled
Electric capacity, triode, unilateral diode and voltage-regulator diode, the one of first resistor after the first resistor is connected with charging capacitor
The negative pole of the positive pole and charging capacitor that are connected to external solar panels is held to be connected to the negative pole of external solar panels, the triode
Colelctor electrode be connected to by second resistance on the positive pole of external solar panels, the emitter stage of triode is connected to rechargeable battery
Positive pole, after the base stage of the triode is connected to the negative pole of the positive pole of unilateral diode and unilateral diode by voltage-regulator diode
Ground connection, the 3rd resistor are connected in the base stage of triode and the positive pole of external solar panels.
The triode is NPN type triode.
The utility model has positive effect：Structure setting of the present utility model is reasonable, its electronic component used
Few, so as to reduce cost of manufacture, and it can make battery stop filling by unilateral diode, voltage-regulator diode and triode
Electricity, protection purpose is overcharged so as to reach, solve the technical deficiency that traditional solar panels voltage change is easily damaged greatly battery, make
The good and strong applicability with stability.
Brief description of the drawings
In order that content of the present utility model is more likely to be clearly understood, below according to specific embodiment and combine attached
Figure, is described in further detail to the utility model, wherein：
Fig. 1 is physical circuit schematic diagram of the present utility model.
Embodiment
(embodiment 1)
Fig. 1 shows a kind of embodiment of the present utility model, and wherein Fig. 1 is that physical circuit of the present utility model shows
It is intended to.
See Fig. 1, a kind of low-cost solar plate overcharge protection circuit, including external solar panels 1 and rechargeable battery 2, institute
State rechargeable battery 2 with the external solar panels 1 to be connected, overcharged between the external solar panels 1 and rechargeable battery 2
Protection circuit 3, the overcharge protection circuit 3 include first resistor R1, second resistance R2,3rd resistor R3, charging capacitor C1, three
Pole pipe Q1, unilateral diode D1 and voltage-regulator diode Z1, first resistor R1 after the first resistor R1 connects with charging capacitor C1
The negative pole of one end positive pole and charging capacitor C1 for being connected to external solar panels 1 be connected to the negative poles of external solar panels 1, institute
The colelctor electrode for stating triode Q1 is connected to by second resistance R2 on the positive pole of external solar panels 1, triode Q1 emitter stage
Rechargeable battery C1 positive pole is connected to, the base stage of the triode Q1 is connected to unilateral diode D1 positive pole and unilateral diode
For D1 negative pole by being grounded after voltage-regulator diode Z1, the 3rd resistor R3 is connected to triode Q1 base stage and external solar energy
On the positive pole of plate 1.
The triode is NPN type triode.
In embodiment, when cell voltage is low, solar panels positive pole charges the battery when being connected to VCC, first pass through R1 to
Electrochemical capacitor C1, charging, voltage are slowly risen by low, and another way provides base current by R3 to Q1 turns on Q1.
When battery is full of, voltage-regulator diode Z1 conductings (Z1 selects model according to battery), by R3, D1, Z1 makes simultaneously
Triode Q1 ends, and battery stops charging, reaches charging protection function.
Structure setting of the present utility model is reasonable, and the electronic component that it is used is few, so as to reduce cost of manufacture, and
It can be made battery stop charging, protection purpose is overcharged so as to reach, be solved by unilateral diode, voltage-regulator diode and triode
Traditional solar panels voltage change of having determined is easily damaged greatly the technical deficiency of battery, and stability in use is good and strong applicability.
Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms.There is no need and unable to give all embodiments
It is exhaustive.And these belong to the obvious changes or variations that connotation of the present utility model is extended out and still fall within this practicality
New protection domain.
Claims (2)
1. a kind of low-cost solar plate overcharge protection circuit, including external solar panels and rechargeable battery, the rechargeable battery
It is connected with the external solar panels, it is characterised in that：Guarantor is overcharged between the external solar panels and rechargeable battery
Protection circuit, the overcharge protection circuit include first resistor, second resistance, 3rd resistor, charging capacitor, triode, unidirectional two
Pole pipe and voltage-regulator diode, one end of first resistor is connected to external solar panels after the first resistor is connected with charging capacitor
Positive pole and the negative pole of charging capacitor be connected to the negative poles of external solar panels, the colelctor electrode of the triode passes through second resistance
It is connected on the positive pole of external solar panels, the emitter stage of triode is connected to the positive pole of rechargeable battery, the base of the triode
Pole is connected to the positive pole of unilateral diode and the negative pole of unilateral diode after voltage-regulator diode by being grounded, and the 3rd resistor connects
It is connected in the base stage of triode and the positive pole of external solar panels.
A kind of 2. low-cost solar plate overcharge protection circuit according to claim 1, it is characterised in that：The triode
For NPN type triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720465672.9U CN206790152U (en) | 2017-04-28 | 2017-04-28 | A kind of low-cost solar plate overcharge protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720465672.9U CN206790152U (en) | 2017-04-28 | 2017-04-28 | A kind of low-cost solar plate overcharge protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206790152U true CN206790152U (en) | 2017-12-22 |
Family
ID=60709671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720465672.9U Active CN206790152U (en) | 2017-04-28 | 2017-04-28 | A kind of low-cost solar plate overcharge protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206790152U (en) |
-
2017
- 2017-04-28 CN CN201720465672.9U patent/CN206790152U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221230 Address after: 529000 Room 203, Floor 2, Building 1, No. 21, Jintong Road, Tangxia Town, Pengjiang District, Jiangmen City, Guangdong Province Patentee after: Jiangmen Xiaosong Intelligent Technology Co.,Ltd. Address before: 529000 301, Floor 3, Building 2, No. 21, Jintong Road, Tangxia Town, Pengjiang District, Jiangmen City, Guangdong Province Patentee before: JIANGMEN PENGJIANG DISTRICT JINYING TECHNOLOGY Co.,Ltd. |