CN2271768Y - solar automatic charger - Google Patents
solar automatic charger Download PDFInfo
- Publication number
- CN2271768Y CN2271768Y CN 95219717 CN95219717U CN2271768Y CN 2271768 Y CN2271768 Y CN 2271768Y CN 95219717 CN95219717 CN 95219717 CN 95219717 U CN95219717 U CN 95219717U CN 2271768 Y CN2271768 Y CN 2271768Y
- Authority
- CN
- China
- Prior art keywords
- battery
- vmos
- solar cell
- solar
- pole
- 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
- 230000005669 field effect Effects 0.000 claims abstract description 8
- 230000005611 electricity Effects 0.000 claims description 5
- 238000007600 charging Methods 0.000 abstract description 15
- 238000005070 sampling Methods 0.000 abstract 1
- 239000000654 additive Substances 0.000 description 3
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Photovoltaic Devices (AREA)
Abstract
The solar automatic charger is manufactured by utilizing the voltage-controlled switching action of a VMOS field effect transistor. The solar battery is powered by a one-watt six-volt solar battery, the anode of the solar battery is connected with two light emitting diodes which are connected in parallel and have the function of charging indication in series, and then is electrically connected with the anode of the charged battery through the D pole and the S pole of the VMOS field effect transistor, and the cathode of the charged battery is electrically connected with the cathode of the solar battery; the G pole of the VMOS tube is connected with the anode of the solar cell through a voltage sampling resistor. Therefore, the conduction of the VMOS tube is controlled by the potential difference between the solar battery and the charged battery, two or four No. five nickel-insulated batteries can be charged simultaneously in sunny days or cloudy days, the charging current is about one hundred milliamperes, and the charging current is automatically cut off when the batteries are sufficient.
Description
The utility model is a kind of automatic charge device that utilizes solar energy that battery is charged.It can be simultaneously to two joints or No. five nickel-cadmium cell chargings of four joints.
Current, the known solar charger overwhelming majority is that solar cell is made power supply directly to being recharged battery charge, no additives for overcharge protection device; The solar charger of minority band additives for overcharge protection, its additives for overcharge protection device is made of an import integrated circuit, and price is expensive, and is difficult for buying.
The utility model aims to provide a kind of new type solar energy automatic charger, and it can not only be to battery charge, and can cut off charging current automatically during by full charge when battery, and structure is extremely simple.
The purpose of this utility model is achieved in that the positive pole of solar cell is electrically connected with the D utmost point of VMOS field effect transistor successively with positive pole, the light-emitting diode negative pole of light-emitting diode group, the S utmost point of VMOS pipe be recharged anode and be connected, be recharged battery cathode and be connected with the solar cell negative electricity; The G utmost point of VMOS pipe is electrically connected with an end of a resistance, and the other end of resistance is connected with the solar cell positive electrical.Like this. utilize solar cell and the electrical potential difference that is recharged battery to control the conducting of VMOS pipe.During charging, because it is lower to be recharged the remaining battery electromotive force, in two batteries when series connection, is at 1.6V-2.0V, electromotive force 6V less than solar cell, the about 4V of this electrical potential difference, be added to the G level of VMOS pipe by voltage sample resistance, because the VMOS pipe is the votage control switch element, and D, the resistance of S interpolar is with G, the S pole tension increases (or reducing) and reduces (or increase), so little voltage signal makes the conducting of VMOS pipe, electric current (about 100 milliamperes) flows out from the positive pole of solar cell, the light-emitting diode of flowing through, the D of VMOS pipe, the S utmost point flows into from the positive pole that is recharged battery, and negative pole flows out, get back to the solar cell negative pole, realize battery charge.When battery is full of electricity, its voltage reaches 2.8V, make the electrical potential difference of two kinds of batteries drop to 3V by 4V, result just VMOS pipe enters the adjustable resistance district, its D, S electrode resistance increase a lot, make charging current reduce to several milliamperes even lower, and the VMOS pipe is in cut-off state, charging stops, and light-emitting diode extinguishes.Light-emitting diode group is to be composed in parallel by two identical light-emitting diodes, is not burnt out in order to ensure charging current light-emitting diode when working long hours for 100 milliamperes, and can correctly shows luminous.
Owing to adopt such scheme, avoided overcharging of battery, reached the purpose of automatic charging, because charger itself only is made of solar cell, light-emitting diode, resistance, five elements of VMOS pipe, structure is extremely simple in addition.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is a circuit diagram of the present utility model.
Fig. 2 is the pin figure of VMOS pipe among Fig. 1.
Among Fig. 1: 1. solar cell 2. light-emitting diodes one 3. light-emitting diodes two 4.VMOS field effect transistor 5. voltage sample resistance 6. are recharged battery
Solar cell among Fig. 1 (1) anodal with parallel connection light-emitting diode (2) and D, the S utmost point of the positive and negative electrode of (3), VMOS field effect transistor (4), the positive pole that is recharged battery (6) be electrically connected successively, the negative pole that is recharged battery (6) is connected with the negative electricity of solar cell (1); The G utmost point of VMOS pipe (4) is electrically connected with an end of voltage sample resistance (5), and the other end of voltage sample resistance (5) is connected with the positive electrical of solar cell (1).During charging, electric current is from the positive pole of solar cell (1), flow through respectively light-emitting diode (2), (3), D, the S utmost point by VMOS pipe (4), enter the positive pole that is recharged battery (6), flow out by the negative pole that is recharged battery (6) again, get back to the negative pole of solar cell (1) at last; At this moment light-emitting diode (2), (3) are all luminous; During full charge, extinguish light-emitting diode (2), (3).
A kind of solar energy automatic charger that utilizes the votage control switch effect of VMOS field effect transistor to make.It is a power supply with one watt of six volts of solar cell, after the anodal light-emitting diodes with two charging indicative functions parallel with one another of solar cell are connected, through the D of the VMOS field effect transistor utmost point, the S utmost point, be connected with the positive electrical that is recharged battery, the negative pole that is recharged battery is connected with the negative electricity of solar cell again; The G utmost point of VMOS pipe links to each other through voltage sample resistance and solar cell positive pole.Like this, control the conducting of VMOS pipe with solar cell and the electrical potential difference that is recharged battery, can be at fine or partly cloudy weather simultaneously to two joints or No. five nickel-cadmium cells chargings of four joints, about 100 milliamperes of charging current is cut off charging current automatically when battery is sufficient.
Claims (2)
1. solar energy automatic charger, it is characterized in that: the positive pole of solar cell is with after light-emitting diode group is connected, through the D of the VMOS field effect transistor utmost point, the S utmost point, be connected with the positive electrical that is recharged battery again, the negative pole that is recharged battery is connected with the negative electricity of solar cell; The G utmost point of VMOS pipe is connected with the positive electrical of solar cell through a voltage sample resistance.
2. solar energy automatic charger according to claim 1 is characterized in that: light-emitting diode group is made of the light-emitting diode parallel connection of two diameter 6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95219717 CN2271768Y (en) | 1995-08-12 | 1995-08-12 | solar automatic charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95219717 CN2271768Y (en) | 1995-08-12 | 1995-08-12 | solar automatic charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2271768Y true CN2271768Y (en) | 1997-12-31 |
Family
ID=33867833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95219717 Expired - Fee Related CN2271768Y (en) | 1995-08-12 | 1995-08-12 | solar automatic charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2271768Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108988433A (en) * | 2018-08-16 | 2018-12-11 | 四川长虹电器股份有限公司 | A kind of charging automatic detection circuit of solar lighting controller |
-
1995
- 1995-08-12 CN CN 95219717 patent/CN2271768Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108988433A (en) * | 2018-08-16 | 2018-12-11 | 四川长虹电器股份有限公司 | A kind of charging automatic detection circuit of solar lighting controller |
| CN108988433B (en) * | 2018-08-16 | 2022-03-01 | 四川长虹电器股份有限公司 | Charging automatic detection circuit of solar lighting controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |