CN202353283U - Universal combined solar charger - Google Patents

Universal combined solar charger Download PDF

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Publication number
CN202353283U
CN202353283U CN 201120560253 CN201120560253U CN202353283U CN 202353283 U CN202353283 U CN 202353283U CN 201120560253 CN201120560253 CN 201120560253 CN 201120560253 U CN201120560253 U CN 201120560253U CN 202353283 U CN202353283 U CN 202353283U
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CN
China
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resistance
triode
diode
capacitor
output
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Expired - Fee Related
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CN 201120560253
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Chinese (zh)
Inventor
潘晓玲
曹干
钟清
匡林建
阳栊楦
李锦池
刘修泉
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Guangzhou Panyu Polytechnic
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Guangzhou Panyu Polytechnic
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers

Abstract

The utility model relates to a universal combined solar charger, which comprises a mains supply, an external battery, a solar panel, a step-down and voltage stabilizing circuit, a universal serial bus (USB) output circuit and a rechargeable battery, wherein the input end of the step-down and voltage stabilizing circuit is electrically connected with the output ends of the mains supply, the external battery and the solar panel respectively; the USB output circuit and the rechargeable battery are electrically connected with the output end of the step-down and voltage stabilizing circuit respectively; a switching power circuit is also electrically connected between the mains supply and the step-down and voltage stabilizing circuit; and a charging management circuit is also electrically connected between the output end of the step-down and voltage stabilizing circuit and the rechargeable battery. The charger can be used for charging electrical equipment such as a mobile phone, a moving picture experts group audio layer-3 (MP3) player, an MP4 layer, a digital camera, a digital video camera and a miniature game console; and charging power supplies adopt the mains supply, the solar panel and the external battery, and the requirements of charging of the electrical equipment in various places can be met.

Description

The omnipotent combined charging device of solar energy
Technical field
The utility model relates to a kind of charging circuit, is specifically related to the omnipotent combined charging device of a kind of solar energy.
Background technology
Along with the deterioration of earth environment, the energy is more and more deficienter, adds that nuclear energy maybe be inestimable to the threat that people bring, and people press for the new regenerative resource of development and utilization.The new forms of energy of relatively paying close attention to now have wind energy and solar energy etc., and solar energy belongs to regenerative resource, and environment is not had any pollution, safety, cleaning, environmental protection.Suit " environmental protection low-carbon (LC) " theme, comply with country " 12 " new forms of energy planning, the omnipotent combined charging device of solar energy arises at the historic moment under this situation.
In addition; Because the generally use of mobile digital equipment such as mobile phone, MP3, MP4, digital camera, DV, mini game machine, people are also increasingly high to their dependence, and people's operation out of doors; Out on tours, when going on business; Regular meeting electric weight occurs and exhausts, and can not find power supply again or the awkward scene of the charger that is not complementary for the moment, and this also can have influence on people's operate as normal and life.
The utility model content
To the deficiency of prior art, the set that the purpose of the utility model is intended to provide a kind of employing to comprise the multiple charge power supply of solar cell comes the omnipotent combined charging device of solar energy for various electrical appliance chargings.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
The omnipotent combined charging device of solar energy; Comprise civil power, external connection battery, solar panel; The omnipotent combined charging device of said solar energy also comprises decompression voltage regulator, USB output circuit, rechargeable battery; The output of the input of said decompression voltage regulator and said civil power, external connection battery, solar panel electrically connects respectively; USB output circuit and rechargeable battery electrically connect with the output of decompression voltage regulator respectively, also electrically connect a switching power circuit between said civil power and the decompression voltage regulator, also electrically connect a charge management circuit between the output of said decompression voltage regulator and the rechargeable battery.
Said switching power circuit comprises: resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 4, diode D1, diode D2, diode D3, diode D4, diode D5, voltage-stabiliser tube ZD1, triode Q1, triode Q2, transformer T; Second output of civil power is connected to the collector electrode of triode Q2 through diode D1, resistance R 3; Resistance R 2 and capacitor C 2 parallel connection backs one are terminated between diode D1 and the resistance R 3; The other end is connected to the collector electrode of triode Q1 through diode D2; The base stage of triode Q1 is connected with the collector electrode of triode Q2; Diode D3 is connected between the base stage of triode Q1 emitter and triode Q2; Resistance R 4 is connected between the emitter of emitter and triode Q2 of triode Q1, and one of capacitor C 3 is connected to the emitter of triode Q2, and the other end of capacitor C 3 is connected between diode D4 and the voltage-stabiliser tube ZD1; The other end of diode D4 is connected to the end of the same name of the sampling winding of transformer T; The other end of voltage-stabiliser tube ZD1 is connected to the base stage of triode Q1, and resistance R 5 and capacitor C 4 series connection backs one are terminated at the end of the same name of the sampling winding of transformer T, and the other end is connected to the base stage of triode Q1; The emitter of triode Q2 is connected to first output of civil power through resistance R 1; The of the same name of the elementary winding of transformer T is terminated between resistance R 2 and the resistance R 3, and the other end of the elementary winding of transformer T is connected to the collector electrode of triode Q1, and the of the same name of the sampling winding of transformer T is terminated between diode D4 and the resistance R 5; The other end of the sampling winding of transformer T is connected between the emitter and resistance R 1 of triode Q2, and the end of the same name of the secondary winding of transformer T is through the diode D5 other end ground connection of secondary winding of transformer T that links to each other with the input of decompression voltage regulator.
Charge management circuit comprises chip U1, resistance R 6, resistance R 7, slide rheostat R8, resistance R 9, capacitor C 5, capacitor C 6, charging indicator light LED1, triode Q3; Resistance R 6 is parallelly connected with capacitor C 5 again after connecting with resistance R 7; The output of parallel connection back one end and decompression voltage regulator electrically connects other end ground connection; First pin of chip U1 is connected between the emitter of slide rheostat R8 and triode Q3; Second pin of chip U1 is connected to the collector electrode of triode Q3; The three-prong of chip U1 is connected between slide rheostat R8 and the resistance R 6, and the 4th pin of chip U1 is connected between resistance R 6 and the resistance R 7, and the 5th pin of chip U1 is ground connection behind resistance R 9, charging indicator light LED1; The 6th pin ground connection of chip U1; The 7th pin of chip U1 is connected to the base stage of triode Q1, and the 8th pin of chip U1 is connected between slide rheostat R8 and the resistance R 6, and one of capacitor C 6 is terminated at the collector electrode of triode Q3; Other end ground connection, the collector electrode of triode Q3 and the positive pole of rechargeable battery electrically connect.
In such scheme, said chip U1 is a BQ2057C type power management chip, and said rechargeable battery is a lithium ion battery.
Said USB output circuit comprises USB interface, resistance R 10, electromotion pilot lamp LED2; First contact pin of said USB interface and the output of decompression voltage regulator electrically connect; The output of decompression voltage regulator is through ground connection after the resistance R 10, electromotion pilot lamp LED2, the 4th contact pin ground connection of USB interface.
The omnipotent combined charging device of the solar energy that the utility model is set forth, compared with prior art, its beneficial effect is:
1, adopts the charger of the utility model, can be the charging of power consumption equipments such as mobile phone, MP3, MP4, digital camera, DV, mini game machine;
2, charge power supply adopts civil power, solar panel, external connection battery, can satisfy the needs of power consumption equipment charging under the various occasions;
3, adopt the solar energy regenerative resource, environment is not had any pollution, safety, cleaning, environmental protection.
Description of drawings
Accompanying drawing 1 is the structured flowchart of the omnipotent combined charging device of the utility model solar energy;
Accompanying drawing 2 is the circuit theory diagrams of switching power circuit among Fig. 1;
Accompanying drawing 3 is the circuit theory diagrams of charge management circuit among Fig. 1;
Accompanying drawing 4 is the circuit theory diagrams of USB output circuit among Fig. 1.
Embodiment
Below, in conjunction with accompanying drawing and embodiment, the omnipotent combined charging device of solar energy of the utility model done further describing, so that clearerly understand the utility model technological thought required for protection.
Shown in Fig. 1 ~ 4; The omnipotent combined charging device of solar energy; Comprise civil power 1, external connection battery 3, solar panel 2; Decompression voltage regulator 4, USB output circuit 5, rechargeable battery 6, the output of the input of decompression voltage regulator 4 and civil power 1, external connection battery 3, solar panel 2 electrically connects respectively, and USB output circuit and rechargeable battery electrically connect with the output of decompression voltage regulator respectively; Also electrically connect a switching power circuit 8 between civil power 1 and the decompression voltage regulator 4, also electrically connect a charge management circuit 7 between the output of decompression voltage regulator 4 and the rechargeable battery 6.Under conventionally form, can adopt civil power 1 is power consumption equipment charging as power supply, if during solar panel 2 work; Can cut off civil power 1 and external connection battery 3; Adopt renewable resource to realize charging, and when the former two can't satisfy condition, can adopt external connection battery 3 power supplies; The output of charger includes USB interface, rechargeable battery interface and the interface etc. that flings commonly used, can satisfy the charging needs of any power consumption equipment.
Switching power circuit 8 comprises: resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 4, diode D1, diode D2, diode D3, diode D4, diode D5, voltage-stabiliser tube ZD1, triode Q1, triode Q2, transformer T; Second output of civil power is connected to the collector electrode of triode Q2 through diode D1, resistance R 3; Resistance R 2 and capacitor C 2 parallel connection backs one are terminated between diode D1 and the resistance R 3; The other end is connected to the collector electrode of triode Q1 through diode D2; The base stage of triode Q1 is connected with the collector electrode of triode Q2; Diode D3 is connected between the base stage of triode Q1 emitter and triode Q2; Resistance R 4 is connected between the emitter of emitter and triode Q2 of triode Q1, and one of capacitor C 3 is connected to the emitter of triode Q2, and the other end of capacitor C 3 is connected between diode D4 and the voltage-stabiliser tube ZD1; The other end of diode D4 is connected to the end of the same name of the sampling winding of transformer T; The other end of voltage-stabiliser tube ZD1 is connected to the base stage of triode Q1, and resistance R 5 and capacitor C 4 series connection backs one are terminated at the end of the same name of the sampling winding of transformer T, and the other end is connected to the base stage of triode Q1; The emitter of triode Q2 is connected to first output of civil power through resistance R 1; The of the same name of the elementary winding of transformer T is terminated between resistance R 2 and the resistance R 3, and the other end of the elementary winding of transformer T is connected to the collector electrode of triode Q1, and the of the same name of the sampling winding of transformer T is terminated between diode D4 and the resistance R 5; The other end of the sampling winding of transformer T is connected between the emitter and resistance R 1 of triode Q2, and the end of the same name of the secondary winding of transformer T is through the diode D5 other end ground connection of secondary winding of transformer T that links to each other with the input of decompression voltage regulator.
The output of civil power 1 comprises first output and second output, and its second output carries out halfwave rectifier through a diode D1, and its first output is through after the resistance R 1, by capacitor C 1 filtering.Resistance R 1 its protective effect, if fault etc. cause overcurrent, resistance R 1 will be blown so, thereby avoids causing bigger fault.Diode D2, resistance R 2 and capacitor C 2 constitute high pressure and absorb circuit, when triode Q1 turn-offs, are responsible for absorbing the induced voltage on the transformer coil, thereby prevent that high pressure is added to triode Q1 and goes up and cause puncture.Triode Q1 is a MJE13003 type switching tube, its withstand voltage 400V, and current collection 14W is used for controlling the on-off between elementary winding and the civil power 1.When break-make that elementary winding does not stop, will in transformer T, form the magnetic field that changes, thereby the resistance R 4 at triode Q1 emitter place be a current sampling resistor, electric current becomes voltage after taking a sample, and this voltage adds on the base stage of triode Q2 behind diode D3.When sampling voltage approximately greater than 1.4V; Be switching tube electric current during greater than 0.14A, triode Q2 conducting, thus the base voltage of triode Q1 is dragged down; Thereby the collector current of triode Q1 reduces; So just limited the electric current of switch, prevented that electric current is excessive and burn (this is a constant current structure, with the maximum current limit of switching tube about 140mA).
The induced voltage of the sampling winding of transformer T (end of the same name) forms sampling voltage through diode D4 rectification after capacitor C 3 filtering.Emitter one end of getting triode Q2 is ground.This sampling voltage is exactly (about the 4V) that bears so, and output voltage is when high more, and sampled voltage is more little.Behind the sampling voltage process voltage-stabiliser tube ZD1, add to the base stage of triode Q1.When output voltage is high more; Sampling voltage is just more little so, when little after to a certain degree voltage-stabiliser tube ZD1 breakdown, thereby the base potential of triode Q1 is dragged down; This will cause switching tube to break off or postpone the conducting of switch; Be input among the transformer T thereby controlled energy, also just controlled the rising of output voltage, realized the function of voltage stabilizing output.The resistance R 5 of below is a positive feedback branch with the capacitor C 4 of series connection, from the sampling winding, takes out induced voltage, is added on the base stage of triode Q1, to keep vibration.The secondary winding of transformer T, through diode D5 rectification, can be after through a filter capacitor the just voltage of exportable 6V, this voltage is again through obtaining the voltage of 5V behind the decompression voltage regulator 4.
Because the reason that frequency is high, transformer T uses high frequency switch transformer, and iron core is a high frequency ferrite core, has high resistivity, to reduce eddy current.Adopt the advantage of switching power circuit 8 be its high efficiency, low noise, reliable and stable, cost is low, volume is little, in light weight, periphery circuit design is simple.
USB output circuit 5 comprises USB interface, resistance R 10, electromotion pilot lamp LED2; First contact pin of USB interface and the output of decompression voltage regulator 4 electrically connect; The output of decompression voltage regulator 4 is through ground connection after the resistance R 10, electromotion pilot lamp LED2, the 4th contact pin ground connection of USB interface.
Because the output voltage of solar panel 2 and power are bigger with the intensity of illumination fluctuation, therefore at first with the output pulsation voltage of solar panel behind voltage conversion circuit, be transformed into charge management circuit 7 needed burning voltages.Because the electric current of load is bigger, and consider the loss that reduces electric energy, having adopted at this decompression voltage regulator 4 is the DC-DC change-over circuit of master control chip with LM2596T.Behind decompression voltage regulator 4, solar panel output 160 ~ 320mA/5V, civil power and external connection battery output 500mA/5V.
Charge management circuit 7 comprises chip U1, resistance R 6, resistance R 7, slide rheostat R8, resistance R 9, capacitor C 5, capacitor C 6, charging indicator light LED1, triode Q3; Resistance R 6 is parallelly connected with capacitor C 5 again after connecting with resistance R 7; The output of parallel connection back one end and decompression voltage regulator electrically connects other end ground connection; First pin of chip U1 is connected between the emitter of slide rheostat R8 and triode Q3; Second pin of chip U1 is connected to the collector electrode of triode Q3; The three-prong of chip U1 is connected between slide rheostat R8 and the resistance R 6, and the 4th pin of chip U1 is connected between resistance R 6 and the resistance R 7, and the 5th pin of chip U1 is ground connection behind resistance R 9, charging indicator light LED1; The 6th pin ground connection of chip U1; The 7th pin of chip U1 is connected to the base stage of triode Q1, and the 8th pin of chip U1 is connected between slide rheostat R8 and the resistance R 6, and one of capacitor C 6 is terminated at the collector electrode of triode Q3; Other end ground connection, the collector electrode of triode Q3 and the positive pole of rechargeable battery electrically connect.
Rechargeable battery 6 if overcharge, cross and to put or during overcurrent, can cause damage or reduction useful life of rechargeable battery in the charge or discharge process, the charging of rechargeable battery 6 is divided into three phases: precharging state, constant current charge and constant voltage charge stage.When charged battery voltage during, flow to line precharge with small electric less than minimum voltage; When cell voltage greater than minimum voltage less than reference voltage, carry out the constant current quick charge with big electric current; When rechargeable battery 6 voltages rise to reference voltage, carry out constant voltage charge, when charging current was decreased to predetermined current, charging was accomplished.
Rechargeable battery with the 800mAh capacity is an example, and it stops charging voltage is 4.2V.Battery with 1/10C (about 80 mA) carries out the constant current preliminary filling, after the rechargeable battery terminal voltage reaches low pressure thresholding V (min), with 800 mA (charge rate is 1C) constant current charge; Charged battery voltage is boosted with bigger slope during beginning, and cell voltage makes the 4.2V constant voltage charge into during near 4.2 V; Electric current gradually falls, and change in voltage is little, when charging current is reduced to 1/10C (about 80mA); Think near being full of, can stop charging.Charge management circuit 6 adopts BQ2057C as control chip, meets the optimal charge mode of rechargeable battery.
For a person skilled in the art, can make other various corresponding changes and distortion, and these all changes and distortion should belong within the protection range of the utility model claim all according to the technical scheme and the design of above description.

Claims (6)

1. the omnipotent combined charging device of solar energy; Comprise civil power, external connection battery, solar panel; It is characterized in that; The omnipotent combined charging device of said solar energy also comprises decompression voltage regulator, USB output circuit, rechargeable battery, and the output of the input of said decompression voltage regulator and said civil power, external connection battery, solar panel electrically connects respectively, and USB output circuit and rechargeable battery electrically connect with the output of decompression voltage regulator respectively; Also electrically connect a switching power circuit between said civil power and the decompression voltage regulator, also electrically connect a charge management circuit between the output of said decompression voltage regulator and the rechargeable battery.
2. the omnipotent combined charging device of solar energy as claimed in claim 1; It is characterized in that; Said switching power circuit comprises: resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 4, diode D1, diode D2, diode D3, diode D4, diode D5, voltage-stabiliser tube ZD1, triode Q1, triode Q2, transformer T; Second output of civil power is connected to the collector electrode of triode Q2 through diode D1, resistance R 3; Resistance R 2 and capacitor C 2 parallel connection backs one are terminated between diode D1 and the resistance R 3, and the other end is connected to the collector electrode of triode Q1 through diode D2, and the base stage of triode Q1 is connected with the collector electrode of triode Q2; Diode D3 is connected between the base stage of triode Q1 emitter and triode Q2; Resistance R 4 is connected between the emitter of emitter and triode Q2 of triode Q1, and one of capacitor C 3 is connected to the emitter of triode Q2, and the other end of capacitor C 3 is connected between diode D4 and the voltage-stabiliser tube ZD1; The other end of diode D4 is connected to the end of the same name of the sampling winding of transformer T; The other end of voltage-stabiliser tube ZD1 is connected to the base stage of triode Q1, and resistance R 5 and capacitor C 4 series connection backs one are terminated at the end of the same name of the sampling winding of transformer T, and the other end is connected to the base stage of triode Q1; The emitter of triode Q2 is connected to first output of civil power through resistance R 1; The of the same name of the elementary winding of transformer T is terminated between resistance R 2 and the resistance R 3, and the other end of the elementary winding of transformer T is connected to the collector electrode of triode Q1, and the of the same name of the sampling winding of transformer T is terminated between diode D4 and the resistance R 5; The other end of the sampling winding of transformer T is connected between the emitter and resistance R 1 of triode Q2, and the end of the same name of the secondary winding of transformer T is through the diode D5 other end ground connection of secondary winding of transformer T that links to each other with the input of decompression voltage regulator.
3. according to claim 1 or claim 2 the omnipotent combined charging device of solar energy; It is characterized in that; Charge management circuit comprises chip U1, resistance R 6, resistance R 7, slide rheostat R8, resistance R 9, capacitor C 5, capacitor C 6, charging indicator light LED1, triode Q3; Resistance R 6 is parallelly connected with capacitor C 5 again after connecting with resistance R 7, and the output of parallel connection back one end and decompression voltage regulator electrically connects other end ground connection; First pin of chip U1 is connected between the emitter of slide rheostat R8 and triode Q3; Second pin of chip U1 is connected to the collector electrode of triode Q3; The three-prong of chip U1 is connected between slide rheostat R8 and the resistance R 6, and the 4th pin of chip U1 is connected between resistance R 6 and the resistance R 7, and the 5th pin of chip U1 is ground connection behind resistance R 9, charging indicator light LED1; The 6th pin ground connection of chip U1; The 7th pin of chip U1 is connected to the base stage of triode Q1, and the 8th pin of chip U1 is connected between slide rheostat R8 and the resistance R 6, and one of capacitor C 6 is terminated at the collector electrode of triode Q3; Other end ground connection, the collector electrode of triode Q3 and the positive pole of rechargeable battery electrically connect.
4. the omnipotent combined charging device of solar energy as claimed in claim 3 is characterized in that, said chip U1 is a BQ2057C type power management chip.
5. according to claim 1 or claim 2 the omnipotent combined charging device of solar energy; It is characterized in that; Said USB output circuit comprises USB interface, resistance R 10, electromotion pilot lamp LED2; First contact pin of said USB interface and the output of decompression voltage regulator electrically connect, the output of decompression voltage regulator through resistance R 10, electromotion pilot lamp LED2 after ground connection, the 4th contact pin ground connection of USB interface.
6. the omnipotent combined charging device of solar energy as claimed in claim 1, its characteristic are being that said rechargeable battery is a lithium ion battery.
CN 201120560253 2011-12-27 2011-12-27 Universal combined solar charger Expired - Fee Related CN202353283U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103904699A (en) * 2012-12-24 2014-07-02 联想(北京)有限公司 Power supply configuration method and apparatus
CN106771031A (en) * 2016-12-22 2017-05-31 江苏大学 A kind of intelligent feeding equipment based on the monitoring of real-time cultivation water
CN107749657A (en) * 2017-11-16 2018-03-02 绵阳市建诚电子有限公司 A kind of anti-overcharge battery charger
CN113931709A (en) * 2021-09-26 2022-01-14 国核电力规划设计研究院有限公司 Solar-assisted pressurized water reactor nuclear power station secondary circuit power generation system and method
CN117175754A (en) * 2023-11-03 2023-12-05 广东省洛仑兹技术股份有限公司 Charging method, device and storage medium
CN113931709B (en) * 2021-09-26 2024-04-09 国核电力规划设计研究院有限公司 Solar-assisted pressurized water reactor nuclear power station secondary loop power generation system and method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103904699A (en) * 2012-12-24 2014-07-02 联想(北京)有限公司 Power supply configuration method and apparatus
CN106771031A (en) * 2016-12-22 2017-05-31 江苏大学 A kind of intelligent feeding equipment based on the monitoring of real-time cultivation water
CN107749657A (en) * 2017-11-16 2018-03-02 绵阳市建诚电子有限公司 A kind of anti-overcharge battery charger
CN113931709A (en) * 2021-09-26 2022-01-14 国核电力规划设计研究院有限公司 Solar-assisted pressurized water reactor nuclear power station secondary circuit power generation system and method
CN113931709B (en) * 2021-09-26 2024-04-09 国核电力规划设计研究院有限公司 Solar-assisted pressurized water reactor nuclear power station secondary loop power generation system and method
CN117175754A (en) * 2023-11-03 2023-12-05 广东省洛仑兹技术股份有限公司 Charging method, device and storage medium

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Granted publication date: 20120725

Termination date: 20131227