CN205829219U - The solar mobile phone charging power-supply system controlled based on ARM - Google Patents
The solar mobile phone charging power-supply system controlled based on ARM Download PDFInfo
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- CN205829219U CN205829219U CN201620659318.5U CN201620659318U CN205829219U CN 205829219 U CN205829219 U CN 205829219U CN 201620659318 U CN201620659318 U CN 201620659318U CN 205829219 U CN205829219 U CN 205829219U
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- mobile phone
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of solar mobile phone charging power-supply system controlled based on ARM, including solar panel, auxiliary power circuit, drive circuit, charging circuit, protection circuit, energy storage battery and voltage stabilizing charging circuit.Not only realize mobile phone charging function, and realize the most efficiently utilizing of solar energy, meet the demand in the case of people do not have alternating current power supply out of doors, mobile phone charged.This utility model circuit structure is simple, and control method is flexible, it is simple to carry, with low cost, it is possible to realize effectively following the tracks of solaode peak power, and the round-the-clock charging for mobile phone high efficient and reliable.
Description
Technical field
This utility model belongs to power technique fields, is specifically related to one and realizes solar-electricity based on ARM control system
The mobile phone charge power supply of pond MPPT maximum power point tracking.
Background technology
Household mobile phone charger is of all kinds at present, excellent performance, along with the use of mobile phone is increased by people, and battery of mobile phone
Capacity become people's concern, although have various charging energy-storing equipment on market, but open air still cannot meet people
Use the need for electricity of mobile phone, utilize new forms of energy to charge the phone out of doors and paid close attention to by more and more people, this utility model
Low to the utilization rate of solar energy for the photovoltaic system charged the phone in the market, structure is complicated, expensive problem,
Devise a kind of structure, easy to carry, cheap, control solar mobile phone charging system flexibly, meet outdoor to mobile phone
The demand of charging.
The current solar energy that utilizes has charged the phone following several scheme: (1) utilizes power management chip and buck
Chip, directly charges solar panel terminal voltage buck or boost to mobile phone, this charging modes, although simple in construction,
But the highest to the utilization rate of solar energy, in the case of the sun is good, only least a portion of solar energy is utilized, most too
Sun can be wasted, and does not meets the theory that efficiently utilizes.
(2) use solar maximum power to follow the tracks of the integrated circuit such as chip and power management chip to charge the phone, this
Charging modes can be good at utilizing solar energy, and can be stable charge the phone, but whole charging system
Design complexity, cost is high, does not meets mass consumption.
(3) use the integrated circuits such as the controller such as single-chip microcomputer, ARM, DSP and power management chip to be combined, but there is part
Algorithm is outmoded, and tracking velocity is slow, and disturbance is relatively big, and power attenuation is big, high in cost of production shortcoming.
(4) additionally also having the modes such as solar energy radio charger, this mode passes through coil by electric energy with wireless system
Transmission, although eliminate the trouble of wiring, but structure is complicated, and relatively costly, mobile phone can only be placed on wireless receiving end and fill
Electricity, when there being distance, electric energy loss is bigger, it is impossible to meets and uses mobile phone charging when, makes troubles to user.
In order to realize the efficient utilization of solar energy, reduce cost, optimize structure, be designed with switching power source chip and ARM
Integrated chip, comprehensive Design can reach mobile phone charging to be realized again maximal efficiency and utilize solar energy, and low cost
Purpose, it is achieved it is outdoor that without charging mobile phone in time in the case of 220V alternating current, this method controls flexible, simple in construction,
Being easy to produce, meet mass consumption standard, it is achieved intelligent management, effectively protect charging energy-storing process, circuit loss is little, is one
Kind of effective charging method, therefore high efficient and reliable utilize solar energy and to charge the phone be the key technology of this design.
Utility model content
The purpose of this utility model is to provide a kind of solar mobile phone charging power-supply system controlled based on ARM, can not only
Enough to mobile phone constant charge, and realize the maximum power output of solar panel, make solar panel output services exist
On maximum power point (mpp), it is achieved the most efficiently utilizing of solar energy, transfer energy into energy-storage battery and mobile phone, and when storage
When energy battery is full of or charging is abnormal, mobile phone and energy-storage battery can effectively be protected by circuit, improve mobile phone charging
Efficiency and reliability.This utility model circuit structure is simple, and control method is flexible, it is simple to carry, with low cost, it is possible to it is right to realize
Solaode peak power is effectively followed the tracks of, and the round-the-clock charging for mobile phone high efficient and reliable.
The technical solution of the utility model is: a kind of mobile phone charge power supply system controlled based on ARM, it is characterized in that: electricity
Origin system includes solar panel, auxiliary power circuit, drive circuit, charging circuit, protection circuit, energy storage battery and steady
Pressure charging circuit；
Charging circuit basic topology is Buck circuit, diode D2, by inductance L, electric capacity C2, switching tube IR540, sampling electricity
Resistance R1, R2, R3, R4, R5 and ARM control chip composition, wherein in parallel with storage capacitor C1 after sampling resistor R1, R2 series connection, adopt
Sample resistance R4, R5 series connection is followed by electric capacity C2 two ends, and electric capacity C2 energy is transferred to energy storage battery by charging circuit, then through steady
Pressure charges the phone；
Protection circuit is made up of, when energy storage battery fills three end adjustable voltage stabilizing a reference sources TL431 and photoelectrical coupler PC817
Man Shi, samples to accumulator both end voltage, exports corresponding PWM ripple through routine processes ARM and controls the ON time of switching tube, to storage
Energy storage device floating charge is protected；
Drive circuit is made up of resistance R14, R15, R16, audion Q1, Q2, Q3, the PWM ripple exported by ARM control chip
Amplify output, control switching tube IR540 conducting and turn off, R14, R15 dividing potential drop, improve the turn-on threshold of Q1 base stage, prevent PWM
Ripple false triggering, improves the reliability of driving；
Solar panel positive pole receives storage capacitor C1 positive pole by diode D1, and diode D1 is by solar panel
Isolate with energy storage battery and mobile phone, protect solar panel, solar panel negative pole and sampling resistor R3 and energy storage electricity
Hold C1 negative pole to connect；
Auxiliary power circuit by LM2596 by solar energy terminal voltage voltage step-down to 5V mono-tunnel to ARM chip power supply, another
Road powers to photoelectrical coupler；
Voltage stabilizing charging circuit is controlled by LM2596 switch control chip, it is provided that stablizes 5V output voltage and charges mobile phone.
Wherein in parallel with storage capacitor C1, by the voltage between sampling resistor R1, R2, warp after sampling resistor R1, R2 series connection
Cross resistance R10, R11, R12, the active proportional amplifier in the same direction of electric capacity C5, C6, solar panel output voltage signal is amplified
Filtering Processing passes to ARM control chip, obtains solar panel output electric current by the voltage on sampling resistor R3, will adopt
The current signal of sample processes pass to ARM control core through resistance R7, R8, R9, the two-stage low-pass filter of electric capacity C3, C4 composition
Sheet, the voltage and current signal analyzing and processing of sampling is produced the PWM ripple of different duty, controls switching tube by ARM control chip
The conducting of IR540 and shutoff, thus control electric capacity C2 both end voltage and stably export, make solar panel defeated with peak power
Go out.
Wherein sampling resistor R4, R5 series connection is followed by electric capacity C2 two ends, is stored energy storage by sampling capacitance C2 both end voltage
Cell charge protection, when energy storage battery is fully charged, both end voltage is close to 6V, three end adjustable voltage stabilizing a reference source TL431 and photoelectricity
Output voltage signal is passed to ARM control chip by bonder PC817 cooperation in real time, processes switch tube through program judgement
IR540 controls, thus to energy storage battery charge protection.
This utility model advantage is embodied in:
(1) mode using solar panel to charge the phone, meeting outdoor AC-less power cannot fill mobile phone
Electricity requirement, when cloudy day or evening without the sun time, the electric energy in energy-storage battery enough for mobile phone charging, when sunray well can
Energy-storage battery accumulation of energy can be given again, it is possible to round-the-clock for mobile phone charging, the problem making up cell phone battery capacity deficiency to mobile phone.
(2) charging circuit achieves the maximal power tracing of solar panel, improves the utilization rate of solar energy, short
Realize the charging to mobile phone maximal efficiency in time, saved the charging interval, and reduced the area of solar panel, convenient
Open air is carried.
(3) charging system hardware circuit design uses the Buck circuit structure of transposition switching tube, makes switch drive simple, electricity
Using Switching Power Supply control chip in road is that ARM powers, and reduces system loss.
(4) same charging system, can charge by the mobile phone with peak power as different brands, in order to meet vast different hands
The continuation of the journey demand of machine user, it is ensured that the electricity abundance that cellie is outdoor.
Accompanying drawing content
Fig. 1 is integrated circuit schematic diagram of the present utility model.
Detailed description of the invention
Below with reference to accompanying drawing, content of the present utility model is described further.
As it is shown in figure 1, based on ARM control mobile phone charge power supply system include solar panel, auxiliary power circuit,
Drive circuit, charging circuit, protection circuit, energy storage battery and voltage stabilizing charging circuit.
Protection diode D1 is Schottky tube, and storage capacitor C1 is big capacity electrolyte capacitor, and solar panel selects rule
Lattice are 10W/18V.Charging circuit basic topology is Buck circuit, diode D2, by inductance L, electric capacity C2, switching tube IR540, adopts
Sample resistance R1, R2, R3, R4, R5 and ARM control chip forms, and can control electric capacity C2 terminal voltage, and by energy to accumulator or
Mobile phone charges, and accumulator selects 6V, C2 to select the electrochemical capacitor of 16V/220uF, reduces output ripple.Sampling resistor R4, R5 adopt
Sample output voltage, is coupled to ARM control chip by three-terminal voltage-stabilizing source with photoelectrical coupler PC817, analyzes and processes through program,
Export corresponding dutycycle to control the work of charging circuit and stopping, thus realize energy-storage battery charging, detect and protect.
Solar panel positive pole receives storage capacitor C1 positive pole by diode D1, diode D1 play solar panels with
Successive load is isolated and prevents electric current from pouring in down a chimney and damage the effect of solar panel, and solar panel negative pole is adopted by electric current
Sample resistance R3 connects with electric capacity C3 negative pole.
Storage capacitor C1 is followed by charging circuit, by analytical calculation BUCK input/output relation, determines there is input voltage, defeated
The relation going out voltage and dutycycle is Vo=DVi, by sampling solar energy terminal voltage and output electric current, determine that output judges
Maximum power point voltage i.e. solar energy terminal voltage, adjusts dutycycle, controls conducting and the shutoff of switching tube IR540, makes electric capacity C2
Voltage stabilization, by the electric energy in storage capacitor C1 through overcharge circuit transfer to energy storage battery and mobile phone load in, complete
The transfer of electric energy, it is achieved solar panel peak power is charged.ARM control chip is by the voltage between sampling resistor R1 and R2
With R3 both end voltage, determine solar energy output voltage and output electric current, compare by analysis, calculate the side of different duty
Ripple, make the voltage stabilization at storage capacitor C1 two ends on maximum power point (mpp), be 18V herein, now solar panel
When the environmental factorss such as output reaches maximum, works as illumination, temperature change, the output voltage of solar energy adjusts corresponding,
Realize solar panel maximal power tracing and charge for accumulator and mobile phone.
Storage capacitor C1 selects pressure 25V, the electrochemical capacitor of capacity 1000uF, and BUCK main circuit is operated in CCM pattern, protects
Card solar panel electric current output is continuously.According to inductive current variable quantity during main circuit stable state equal have formula [(Vi-Vo)/
L] DT=Vo/L (1-D) T, wherein ViFor solar energy input voltage, Vo is output voltage, and L is inductance, and D is dutycycle, and T is work
Make the cycle, calculate control formula Vo=DVi, to charging system control.Sampling filter circuit integrated chip LM358 operation amplifier
Device is directly powered by solar energy output voltage, meets power reguirements.Voltage between sampling resistor R4, R5, exports C2 terminal voltage dividing potential drop
Signal, passes to ARM by three-terminal voltage-stabilizing a reference source TL431 and photoelectrical coupler PC817 by voltage division signal, has program to judge, control
The conducting of switching tube IR540 processed and shutoff, to control work and the halted state of charging circuit, examine C2 electric capacity both end voltage
Surveying, when electric capacity C2 both end voltage reaches 6V, after floating charge a period of time, charging circuit quits work, charging complete, and switching tube closes
Disconnected, it is achieved to energy-storage battery charge protection.
In circuit, control chip is ARM-STM32RBC6, voltage-dropping type Buck circuit, and control chip is LM2596, and computing is put
Big device is LM358.Whole charge power supply system, by software and hardware combining, has low cost, reliability is high, low in energy consumption, efficiency is high
Feature.
Claims (3)
1. the solar mobile phone charging power-supply system controlled based on ARM, is characterized in that: power-supply system includes solaode
Plate, auxiliary power circuit, drive circuit, charging circuit, protection circuit, energy storage battery and voltage stabilizing charging circuit；
Charging circuit basic topology is Buck circuit, diode D2, by inductance L, electric capacity C2, switching tube IR540, sampling resistor
R1, R2, R3, R4, R5 and ARM control chip forms, wherein in parallel with storage capacitor C1 after sampling resistor R1, R2 series connection, sampling
Resistance R4, R5 series connection is followed by electric capacity C2 two ends, and electric capacity C2 energy is transferred to energy storage battery by charging circuit, then through voltage stabilizing
Charge the phone；
Protection circuit is made up of three end adjustable voltage stabilizing a reference sources TL431 and photoelectrical coupler PC817, when energy storage battery is full of
Time, accumulator both end voltage is sampled, exports corresponding PWM ripple through routine processes ARM and control the ON time of switching tube, to energy storage
Accumulator floating charge is protected；
Drive circuit is made up of resistance R14, R15, R16, audion Q1, Q2, Q3, and the PWM ripple exported by ARM control chip amplifies
Output, drives switching tube IR540 conducting and turns off, and R14, R15 dividing potential drop improves the turn-on threshold of Q1 base stage, prevents PWM ripple by mistake
Trigger, improve the reliability of driving；
Solar panel positive pole receives storage capacitor C1 positive pole by diode D1, and diode D1 is by solar panel and storage
Energy storage device and mobile phone isolation, protect solar panel, solar panel negative pole and sampling resistor R3 and storage capacitor C1
Negative pole connects；
Solar energy terminal voltage is depressured to 5V mono-tunnel to ARM chip power supply by LM2596 by auxiliary power circuit, and another road is to photoelectricity
Bonder is powered；
Voltage stabilizing charging circuit is controlled by LM2596 switch control chip, it is provided that stablizes 5V output voltage and charges mobile phone.
2. the solar mobile phone charging power-supply system controlled based on ARM as claimed in claim 1, is characterized in that: sampling resistor
R1, R2 are in parallel with storage capacitor C1, by the voltage between sampling resistor R1, R2, through resistance R10, R11, R12, electricity after connecting
Hold the active proportional amplifier in the same direction of C5, C6, solar panel output voltage signal amplification Filtering Processing is passed to ARM control
Chip, obtains solar panel output electric current by the voltage on sampling resistor R3, by the current signal of sampling through resistance
R7, R8, R9, the two-stage low-pass filter of electric capacity C3, C4 composition process and pass to ARM control chip, and ARM control chip is by sampling
Voltage and current signal analyzing and processing produces the PWM ripple of different duty, controls conducting and the shutoff of switching tube IR540, thus controls
Electric capacity C2 both end voltage processed stably exports, and makes solar panel with maximum power output.
3. the solar mobile phone charging power-supply system controlled based on ARM as claimed in claim 1, is characterized in that: sampling resistor
R4, R5 series connection is followed by electric capacity C2 two ends, by sampling capacitance C2 both end voltage to energy storage battery charge protection, when energy storage stores
When battery is fully charged, both end voltage is close to 6V, and three ends adjustable voltage stabilizing a reference source TL431 coordinates with photoelectrical coupler PC817 will output
Voltage signal passes to ARM control chip in real time, processes switch tube IR540 through judgement and controls, thus fills energy storage battery
Electric protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620659318.5U CN205829219U (en) | 2016-06-28 | 2016-06-28 | The solar mobile phone charging power-supply system controlled based on ARM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620659318.5U CN205829219U (en) | 2016-06-28 | 2016-06-28 | The solar mobile phone charging power-supply system controlled based on ARM |
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| Publication Number | Publication Date |
|---|---|
| CN205829219U true CN205829219U (en) | 2016-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620659318.5U Expired - Fee Related CN205829219U (en) | 2016-06-28 | 2016-06-28 | The solar mobile phone charging power-supply system controlled based on ARM |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958600A (en) * | 2016-06-28 | 2016-09-21 | 西安科技大学 | ARM control-based solar mobile phone charging power supply system |
| CN110212743A (en) * | 2018-02-28 | 2019-09-06 | 南京理工大学 | Reduce the control system of CRM-Buck-PFC converter capacitor ripple current |
-
2016
- 2016-06-28 CN CN201620659318.5U patent/CN205829219U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958600A (en) * | 2016-06-28 | 2016-09-21 | 西安科技大学 | ARM control-based solar mobile phone charging power supply system |
| CN110212743A (en) * | 2018-02-28 | 2019-09-06 | 南京理工大学 | Reduce the control system of CRM-Buck-PFC converter capacitor ripple current |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 Termination date: 20170628 |