CN202503338U - Intelligent solar energy mobile phone charger - Google Patents
Intelligent solar energy mobile phone charger Download PDFInfo
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- CN202503338U CN202503338U CN2012200966371U CN201220096637U CN202503338U CN 202503338 U CN202503338 U CN 202503338U CN 2012200966371 U CN2012200966371 U CN 2012200966371U CN 201220096637 U CN201220096637 U CN 201220096637U CN 202503338 U CN202503338 U CN 202503338U
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- mobile phone
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- 238000006243 chemical reaction Methods 0.000 abstract description 10
- 238000005070 sampling Methods 0.000 abstract 5
- 238000000034 method Methods 0.000 description 10
- 238000005259 measurement Methods 0.000 description 6
- 230000003321 amplification Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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Abstract
The utility model discloses an intelligent solar energy mobile phone charger which comprises a solar cell panel, a power conversion circuit, an A/D conversion circuit, a first sampling circuit, a second sampling circuit, a single chip microcomputer, a PWM control circuit and a rechargeable cell. Power output terminals of the solar cell panel are respectively connected with a power input terminal of the power conversion circuit and a power input terminal of the first sampling circuit. A power output terminal of the power conversion circuit is connected with a power input terminal of the PWM control circuit. A control signal input terminal of the PWM control circuit is connected with a control signal input terminal of the single chip microcomputer. Signal output terminals of the single chip microcomputer are respectively connected with signal input terminals of the first sampling circuit and the second sampling circuit. The intelligent solar energy mobile phone charger has high control precision and a self-adjusting capability, can improve the mobile phone cell service efficiency and extend the service life through automatically searching the maximum power output point of the solar cell panel.
Description
Technical field
The utility model relates to a kind of charger for mobile phone, particularly relates to a kind of intelligent solar charger for mobile phone.
Background technology
People are just considering to be used to comprise the more consumer-electronics applications of broadness of the such scope of charger for mobile phone to solar energy that the power height that solar panel provided depends on operational environment.This comprises the factor such as optical density, time and position.Therefore, battery is used as energy storage units usually.When having a surplus from the electric energy of solar panels, just can be to battery charge; When the electric energy that provides when solar panels was not enough, battery just can be supplied power for system.The output voltage of the solar panel that we adopt is 9V, and the maximum input voltage of rechargeable battery requires to be higher than 4.2V, and for the purpose of protecting battery, we increase the voltage of output earlier from low to high gradually.At present mostly the solar mobile phone charging device is easy to disturb and misjudgment causes power loss because of not clear, and measures shortcomings such as the measuring range of current methods existence is little, measure error is big.
Summary of the invention
The purpose of the utility model be provide in order to address the above problem a kind of control precision high, have capacity of self-regulation, can seek the peak power output point raising battery of mobile phone service efficiency of solar panel automatically, the intelligent solar charger for mobile phone that increases the service life.
The utility model is realized through following technical scheme:
A kind of intelligent solar charger for mobile phone; Comprise solar panel, power converting circuit, A/D change-over circuit, first sample circuit, second sample circuit, single-chip microcomputer, pwm control circuit and rechargeable battery; The power output end of said solar panel is connected with the power input of said power supply switched circuit and the power input of said first sample circuit respectively; The power output end of said power converting circuit is connected with the power input of said pwm control circuit; The signal input end of said pwm control circuit is connected with the signal input end of said single-chip microcomputer; The signal output part of said single-chip microcomputer is connected with the signal input part of said first sample circuit and second sample circuit respectively; The signal output part of said first Acquisition Circuit and said second Acquisition Circuit is connected with said A/D change-over circuit respectively; Said A/D change-over circuit is connected with said single-chip microcomputer, and the power input of said second Acquisition Circuit is connected with the power output end of said rechargeable battery, and the power input of said rechargeable battery is connected with said pwm control circuit.
The task of single-chip microcomputer is the charged state of gathering output voltage and the electric current and the battery of solar panel through sample circuit in real time, and how decision is sought the cell panel peak power output and the charged state of definite rechargeable battery through calculating.If in system, will detect to electric current, must convert current signal into voltage signal earlier, could realize the conversion of A/D then.Conversion method commonly used is in circuit, to add precision resistance, converts current signal into voltage signal thus.The advantage of this method is that measurement is simple and convenient, but this method is when electric current is very little, influences accuracy of measurement, thereby is difficult to select a suitable resistance; Secondly, resulting current detection signal has only through could getting into the comparator in the circuit amplification after, thereby has increased the complexity when circuit design is debugged.Therefore, can adopt current/voltage conversion chip MAX472, overcome shortcomings such as the measuring range that the general measure current methods exists is little, measure error is big, can improve certainty of measurement, and can accurately control with single-chip microcomputer.PWM generator be by the PWM ripple of single-chip microcomputer output realize that through control circuit master controller adopts the mode of interrupting to carry out communication with its, controls its increase or reduces pulsewidth.Pwm signal is through the MOSFET on the photoelectricity isolation drive major loop.
As the utility model preferably, said single-chip microcomputer adopts the 89C51 single-chip microcomputer.There is the I/O mouth of two timers, two external interrupt and a serial ports interruption, three octuples 89C51 single-chip microcomputer inside, adopts the crystal oscillator of 12MHz.
The beneficial effect of the utility model is:
Through adopting technique scheme, the control precision of the utility model is high, have capacity of self-regulation, can seek the peak power output point raising battery of mobile phone service efficiency of solar panel automatically, increases the service life.In addition, the Switching Power Supply that adopts the PWM mode to control can reduce power consumption, is convenient to carry out Digital Control simultaneously.
Description of drawings
Fig. 1 is the structural representation of the utility model intelligent solar charger for mobile phone.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to specify:
As shown in Figure 1; The utility model intelligent solar charger for mobile phone; Comprise solar panel, power converting circuit, A/D change-over circuit, first sample circuit, second sample circuit, single-chip microcomputer, pwm control circuit and rechargeable battery; The power output end of said solar panel is connected with the power input of said power supply switched circuit and the power input of said first sample circuit respectively; The power output end of said power converting circuit is connected with the power input of said pwm control circuit; The signal input end of said pwm control circuit is connected with the signal input end of said single-chip microcomputer; The signal output part of said single-chip microcomputer is connected with the signal input part of said first sample circuit and second sample circuit respectively, and the signal output part of said first Acquisition Circuit and said second Acquisition Circuit is connected with said A/D change-over circuit respectively, and said A/D change-over circuit is connected with said single-chip microcomputer; The power input of said second Acquisition Circuit is connected with the power output end of said rechargeable battery, and the power input of said rechargeable battery is connected with said pwm control circuit.
The task of single-chip microcomputer is the charged state of gathering output voltage and the electric current and the battery of solar panel through sample circuit in real time, and how decision is sought the cell panel peak power output and the charged state of definite rechargeable battery through calculating.If in system, will detect to electric current, must convert current signal into voltage signal earlier, could realize the conversion of A/D then.Conversion method commonly used is in circuit, to add precision resistance, converts current signal into voltage signal thus.The advantage of this method is that measurement is simple and convenient, but this method is when electric current is very little, influences accuracy of measurement, thereby is difficult to select a suitable resistance; Secondly, resulting current detection signal has only through could getting into the comparator in the circuit amplification after, thereby has increased the complexity when circuit design is debugged.Therefore, can adopt current/voltage conversion chip MAX472, overcome shortcomings such as the measuring range that the general measure current methods exists is little, measure error is big, can improve certainty of measurement, and can accurately control with single-chip microcomputer.PWM generator be by the PWM ripple of single-chip microcomputer output realize that through control circuit master controller adopts the mode of interrupting to carry out communication with its, controls its increase or reduces pulsewidth.Pwm signal is through the MOSFET on the photoelectricity isolation drive major loop.
Said single-chip microcomputer adopts the 89C51 single-chip microcomputer.There is the I/O mouth of two timers, two external interrupt and a serial ports interruption, three octuples 89C51 single-chip microcomputer inside, adopts the crystal oscillator of 12MHz.
Claims (2)
1. intelligent solar charger for mobile phone; It is characterized in that: comprise solar panel, power converting circuit, A/D change-over circuit, first sample circuit, second sample circuit, single-chip microcomputer, pwm control circuit and rechargeable battery; The power output end of said solar panel is connected with the power input of said power supply switched circuit and the power input of said first sample circuit respectively; The power output end of said power converting circuit is connected with the power input of said pwm control circuit; The signal input end of said pwm control circuit is connected with the signal input end of said single-chip microcomputer; The signal output part of said single-chip microcomputer is connected with the signal input part of said first sample circuit and second sample circuit respectively; The signal output part of said first Acquisition Circuit and said second Acquisition Circuit is connected with said A/D change-over circuit respectively; Said A/D change-over circuit is connected with said single-chip microcomputer, and the power input of said second Acquisition Circuit is connected with the power output end of said rechargeable battery, and the power input of said rechargeable battery is connected with said pwm control circuit.
2. intelligent solar charger for mobile phone according to claim 1 is characterized in that: said single-chip microcomputer adopts the 89C51 single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200966371U CN202503338U (en) | 2012-03-15 | 2012-03-15 | Intelligent solar energy mobile phone charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200966371U CN202503338U (en) | 2012-03-15 | 2012-03-15 | Intelligent solar energy mobile phone charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202503338U true CN202503338U (en) | 2012-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200966371U Expired - Fee Related CN202503338U (en) | 2012-03-15 | 2012-03-15 | Intelligent solar energy mobile phone charger |
Country Status (1)
| Country | Link |
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| CN (1) | CN202503338U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103311993A (en) * | 2013-06-24 | 2013-09-18 | 无锡商业职业技术学院 | Solar charger for cell phones |
| CN104980101A (en) * | 2015-07-10 | 2015-10-14 | 广州奥鹏能源科技有限公司 | Intelligent solar cell controller and method |
| CN114784936A (en) * | 2022-01-12 | 2022-07-22 | 深圳市可信华成通信科技有限公司 | Terminal protection clamp with photovoltaic charging function and photovoltaic charging system thereof |
-
2012
- 2012-03-15 CN CN2012200966371U patent/CN202503338U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103311993A (en) * | 2013-06-24 | 2013-09-18 | 无锡商业职业技术学院 | Solar charger for cell phones |
| CN104980101A (en) * | 2015-07-10 | 2015-10-14 | 广州奥鹏能源科技有限公司 | Intelligent solar cell controller and method |
| CN114784936A (en) * | 2022-01-12 | 2022-07-22 | 深圳市可信华成通信科技有限公司 | Terminal protection clamp with photovoltaic charging function and photovoltaic charging system thereof |
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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: Sichuan Hanergy Photovoltaic Co., Ltd. Assignor: Sichuan Orient Software Science & Technology Co., Ltd. Contract record no.: 2012510000170 Denomination of utility model: Intelligent solar energy mobile phone charger Granted publication date: 20121024 License type: Exclusive License Record date: 20121220 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121024 Termination date: 20140315 |