CN201323462Y - Charging circuit for solar battery - Google Patents
Charging circuit for solar battery Download PDFInfo
- Publication number
- CN201323462Y CN201323462Y CNU2008202146741U CN200820214674U CN201323462Y CN 201323462 Y CN201323462 Y CN 201323462Y CN U2008202146741 U CNU2008202146741 U CN U2008202146741U CN 200820214674 U CN200820214674 U CN 200820214674U CN 201323462 Y CN201323462 Y CN 201323462Y
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- charging
- circuit
- chargeable storage
- control circuit
- solar panel
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Abstract
The utility model relates to a charging circuit for a solar battery, which utilizes the solar battery to charge a chargeable storage battery by an electronic unidirectional switch charging tube (hereafter referred to as charging tube) controlled by electron. The charging tube can be an electronic device which is controlled by electron and has the characteristics of a unidirectional switch, such as a triode, an MOS tube, a thyristor and the like. The charging circuit for the solar battery is characterized by comprising a solar panel, a chargeable storage battery, the charging tube and a control circuit. The charging tube is connected between the positive electrode of the solar panel and the positive electrode of the chargeable storage battery, or between the negative electrode of the solar panel and the negative electrode of the chargeable storage battery, and the control circuit is connected to the control end of the charging tube. The control circuit adopts a pulse charging control circuit.
Description
Technical field
The utility model relates to a kind of solar battery charging circuit, utilize solar cell to pass through one, chargeable storage is charged by electronically controlled electron type single-way switch charging valve (hereinafter to be referred as charging valve).This charging valve can be a triode, metal-oxide-semiconductor, electronically controlled electronic device with single-way switch characteristic such as thyristor.
Background technology
Growing in energy-consuming, energy shortage, the world advocates under the energy-conservation overall situation background, utilize solar cell to generate electricity or to chargeable storage charging energy storage, but energy loss in this power conversion thermal energy storage process existence, can further improve energy loss by certain method, this method is studied core content exactly.
The rechargeable solar battery method of Cai Yonging all is that the Schottky diode of connecting between the positive pole of solar cell and chargeable storage positive pole is realized in the market, this conventional method, though circuit is simple, but energy loss is relatively large, and charging voltage is had relatively high expectations, be unfavorable for the charge efficiency when sun light intensity is more weak.
Summary of the invention
The utility model purpose is to provide a kind of solar battery charging circuit at above-mentioned weak point, adopts novel solar cell negative pole charge control method, and solar panel SOLAR is by charging valve accumulators BAT charging.Can realize overcharging Charge Management, prolong the useful life of chargeable storage, can realize the charging of Weak current, utilize solar energy as much as possible.
Solar battery charging circuit is to take following scheme to realize: solar battery charging circuit comprises solar panel, chargeable storage, charging valve and control circuit; Charging valve can be connected between solar panel positive pole and the chargeable storage positive pole or charging valve can be connected between solar panel negative pole and the chargeable storage negative pole, and control circuit is connected on the charging valve control end.
Described control circuit adopts the pulse current charge control circuit.The pulse current charge control circuit adopts the pwm pulse control circuit.
Described charging valve adopts triode or the metal-oxide-semiconductor or the thyristor of low-power consumption.
The utility model solar battery charging circuit adopts metal-oxide-semiconductor as charging valve, its pressure drop is less than 200mV, and whole charging process can be controlled by control circuit CONTROL, and control circuit is in sleep state in charging process, quiescent dissipation is low to 1uA, only charging process is monitored.Because pressure drop is little, for the current charges more than the 0.2C, can realize pulse current charge.Also be beneficial to the trickle charge of Weak current.
Usually the circuit connecting of charging circuit is to adopt at the charge power supply positive pole with by the mode that the positive interpolar of chargeable storage is controlled to realize charging, the utility model then adopts at the charge power supply positive pole with by the mode that the chargeable storage negative pole is controlled and realizes charging, and this is a kind of New-type charge control mode.Its advantage is to allow anode obtain enough electric charges, and reduces the loss of energy loss and cell positive material, high efficiency being stored in the chargeable storage of electric current that allows the solar panel plate produce as far as possible.From the miniaturization of solar energy related application product trend, the utility model charging circuit is convenient integrated.
Description of drawings
The utility model is described in further detail below with reference to accompanying drawing.
Fig. 1 is the anodal metal-oxide-semiconductor may command of a utility model solar cell charging circuit connection.
Fig. 2 is the utility model solar cell negative pole metal-oxide-semiconductor may command charging circuit connection.
Fig. 3 is the utility model rechargeable solar battery typical case application product SC6608 circuit block diagram.
Fig. 4 is the typical application circuit schematic diagram of the utility model typical case application product SC6608.
Among the figure, 1, control circuit, 2, drive circuit, 3, light-emitting diode, 4, chargeable storage, 5, solar panel, 6, charging circuit, 7, enable circuits, 8, charging control CONTROL, 9, charging valve, 10, inductance, 11, SC6608 integrated circuit (IC) chip, 12, Schottky diode, wherein 1 of the label among Fig. 4 11, SC6608 integrated circuit (IC) chip, 2,3,4 pin are defined as LX (L) respectively, GN (G), CE (E), VDD (V).
Embodiment
With reference to accompanying drawing 1～4, solar battery charging circuit comprises solar panel (5), chargeable storage (4), charging valve (9) and control circuit (1); Charging valve (9) can be connected between solar panel (5) positive pole and chargeable storage (4) positive pole or charging valve (9) is connected between solar panel (5) negative pole and chargeable storage (4) negative pole, and control circuit (1) is connected on charging valve (9) control end.
Described control circuit (1) adopts the pulse current charge control circuit.The pulse current charge control circuit adopts the pwm pulse control circuit.
What described charging valve (9) adopted is triode or metal-oxide-semiconductor or the thyristor that low-power consumption is adopted in low-power consumption.
With reference to accompanying drawing 1, the anodal charging valve charging circuit of the utility model solar cell connection, solar panel (5) negative pole and chargeable storage (4) negative pole directly link together; Solar panel (5) is anodal to link together by charging valve (9) and chargeable storage (4) positive pole; Charging valve (9) is subjected to charging control CONTROL (8) control, realizes that solar panel (5) passes through anodal chargeable storage (4) charging of giving.
With reference to accompanying drawing 2, the utility model solar panel negative pole charging valve charging circuit connection, solar panel plate (5) is anodal directly to link together with chargeable storage (4) positive pole; Solar panel plate (5) negative pole links together by charging valve (9) and chargeable storage (4) negative pole; Charging valve (9) is subjected to charging control CONTROL (8) control, and realization solar panel plate (5) is given chargeable storage (4) charging by negative pole.
The utility model typical case application product is the SC6608 integrated circuit (IC) chip, adopts the utility model accompanying drawing 2 circuit design connections, is mainly used in solar lawn lamp.
With reference to accompanying drawing 3, the utility model charging circuit design connection is solar cell negative pole charging valve may command charging circuit connection of the present invention.
What charging valve (9) adopted is the N-MOS pipe of low-power consumption.
Solar panel plate (5) is given chargeable storage (4) charging by charging circuit (6), and the control of the controlled circuit of charging circuit (6) (1) guarantees high efficiency charging; Chargeable storage (4) drives by drive circuit (2) and lights light-emitting diode (3); Enable circuits (7) acquired signal is sent instruction to control circuit (1), and control circuit (1) receives the instruction back drive circuit (2) and charging circuit (6) are controlled; The control of the controlled circuit of drive circuit (2) (1), luminous under which kind of situation of decision light-emitting diode (3).
With reference to accompanying drawing 4, be the typical application circuit schematic diagram of the utility model typical case application product SC6608.
Solar panel (5) negative pole connects the E pin of chip SC6608 (11), and positive pole connects the V pin of chip SC6608 (11); Chargeable storage (4) positive pole connects the V pin of chip SC6608 (11), and negative pole connects the G pin of chip SC6608 (11); Inductance (10) two ends connect the L pin and the V pin of chip SC6608 (11) respectively, and white light LEDs (3) anode connects the L pin of chip SC6608 (11), and negative electrode connects the V pin of chip SC6608 (11).
Operation principle: when solar energy irradiation solar panel (5), solar panel (5) produces charging voltage and electric current, when gathering signal of telecommunication voltage greater than 200mV by the E pin of chip SC6608 (11), enable circuits (7) control signal is by control circuit (1), charging circuit (6) is started, solar panel (5) constitutes charging circuit (6) by making the inner N-MOS charging valve of chip SC6608 (11) (9) through the G pin negative pole that makes chip SC6608 (11), begins to charge to chargeable storage (4); Simultaneously control circuit (1) cuts out drive circuit (2), makes the 1st pin no-output of chip SC6608 (11), makes not starting of oscillation of inductance (10), and white light LEDs (3) does not work, thereby realizes light-operated.
When solar panel (5) does not receive any certain rayed (being in night), solar panel (5) does not produce charging voltage and electric current, when the E pin collection signal of telecommunication voltage of chip SC6608 (11) is not more than 200mV, enable circuits (7) control signal is by control circuit (1), charging circuit (6) cuts out, stop to charge to chargeable storage (4); Control circuit (1) starts drive circuit (2) simultaneously, makes the oscillating voltage of the L pin output certain frequency of chip SC6608 (11), makes inductance (10) starting of oscillation to obtain a constant drive current that it is luminous to drive white light LEDs (3).When chargeable storage (4) when voltage is lower than 0.7V, the L pin of chip SC6608 chip SC6608 (11) is with no-output, and white light LEDs (3) goes out.
The application product high conformity of the utility model design, enable circuits control sensitivity high conformity, the circuit working good stability conveniently is designed to integrated circuit, and power consumption is little, the energy conversion efficiency height.
Claims (3)
1, a kind of solar battery charging circuit is characterized in that comprising solar panel, chargeable storage, charging valve and control circuit; Charging valve is connected between solar panel positive pole and the chargeable storage positive pole or charging valve is connected between solar panel negative pole and the chargeable storage negative pole, and control circuit is connected on the charging valve control end.
2, solar battery charging circuit according to claim 1 is characterized in that described control circuit adopts the pulse current charge control circuit.
3, solar battery charging circuit according to claim 1 is characterized in that described charging valve adopts triode or the N-MOS pipe or the thyristor of low-power consumption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202146741U CN201323462Y (en) | 2008-12-25 | 2008-12-25 | Charging circuit for solar battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202146741U CN201323462Y (en) | 2008-12-25 | 2008-12-25 | Charging circuit for solar battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201323462Y true CN201323462Y (en) | 2009-10-07 |
Family
ID=41160834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202146741U Expired - Fee Related CN201323462Y (en) | 2008-12-25 | 2008-12-25 | Charging circuit for solar battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201323462Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI452802B (en) * | 2010-05-17 | 2014-09-11 | Hon Hai Prec Ind Co Ltd | Solar storage system and driving method using the same |
-
2008
- 2008-12-25 CN CNU2008202146741U patent/CN201323462Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI452802B (en) * | 2010-05-17 | 2014-09-11 | Hon Hai Prec Ind Co Ltd | Solar storage system and driving method using the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo Yixincheng Electrical Appliance Co., Ltd. Assignor: Nanjing SuperIC Microelectronic Co., Ltd. Contract record no.: 2010330001100 Denomination of utility model: Solar battery charging circuit, device and solar vehicle provided with device Granted publication date: 20091007 License type: Exclusive License Record date: 20100611 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091007 Termination date: 20101225 |