CN107093923A - High-efficiency solar charger baby based on BQ24195 chips - Google Patents
High-efficiency solar charger baby based on BQ24195 chips Download PDFInfo
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- CN107093923A CN107093923A CN201710540271.XA CN201710540271A CN107093923A CN 107093923 A CN107093923 A CN 107093923A CN 201710540271 A CN201710540271 A CN 201710540271A CN 107093923 A CN107093923 A CN 107093923A
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- 238000007600 charging Methods 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 23
- 230000008569 process Effects 0.000 claims abstract description 22
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 13
- 230000005611 electricity Effects 0.000 claims description 8
- 230000006378 damage Effects 0.000 claims description 4
- 238000013016 damping Methods 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 230000002195 synergetic effect Effects 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 abstract 1
- 102100023941 G-protein-signaling modulator 2 Human genes 0.000 description 17
- 101000904754 Homo sapiens G-protein-signaling modulator 2 Proteins 0.000 description 17
- 238000006243 chemical reaction Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 206010010254 Concussion Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- H02J7/0003—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a kind of intelligent and high-efficiency rate Solar energy charger, including folding casing (1), solar panel (2).Housing (1) surface is provided with USB interface (3), and display lamp (4) is switched (5), USB interface (3).Internal circuit includes high efficiency charging circuit, MCU control charge and discharge processes, circuit voltage-stabilizing protection, battery protecting circuit, discharge circuit.Solar panel (2) is connected with mu balanced circuit, and mu balanced circuit is connected with charge-discharge circuit, and charge-discharge circuit is connected with lithium battery.Charging circuit uses the BQ24195 chips of TI companies.The invention provides a kind of intelligent and high-efficiency rate Solar energy charger; high efficiency discharge and recharge is realized by BQ24195 chips, ABOV single-chip microcomputer reasonable selection charge and discharge patterns fold double plate increase solar panel (2) areas; it is achievable to be put when filling; high speed charge and discharge, and possess multiple protective circuit, under low light environment; for example the cloudy day could be used that; charge efficiency is high, economical and practical, meets the use demand of most of masses.
Description
Technical field
The present invention relates to portable type electronic product technical field, and in particular to a kind of high-efficiency solar charger baby.
Background technology
With the development of the society, smart mobile phone substantial amounts of popularization.Because everyone can use when the free time
Mobile phone, thus the battery durable of electronic product just into it is very big the problem of.The generation of Solar energy charger, can be largely
On solution this problem.
Most of present charger baby can only use it is commercial power charged, it is very inconvenient when being away from home.And solar energy
Charger baby is also in the state of ground zero, and technology is ripe not enough, and it is low that generally existing efficiency for charge-discharge, solar panels area mistake
Small, without practical value, or area very much not Portable belt, under low light environment, for example the cloudy day can not charge, and have potential safety hazard
The problems such as.Therefore, a kind of Solar energy charger of intelligent and high-efficiency rate is needed at present, while small volume, moreover it is possible to realize fast
Fast charge and discharge, the cloudy day can also be used.
The content of the invention
It is an object of the present invention to provide maturation, complete, intelligence a charger baby, and with high efficiency, low-power consumption
Conversion circuit.It can also be charged normal in the environment of dim light.
To realize object above, the present invention is achieved through the following technical solutions：Controlled including high efficiency charging circuit, MCU
Charge and discharge process, circuit voltage-stabilizing protection, battery protecting circuit, discharge circuit.
First, high efficiency charging circuit, is stored on lithium battery in order that the electric energy that changes into of solar energy is efficient, adopts
Commonly used with mobile PC end, the integrated IC of portable power source charging solution provided by TI companies:BQ24195.The chip is converted
Rate is high, low in energy consumption, and controls precisely, can largely protect lithium battery safety, reduce loss.In the solar charging
In electric treasured, in the case that charging current is 1A, the electric energy conversion efficiency of the chip has reached 94.5%.Therefore, it is very suitable for being used for
Solar energy charger.
The MCU control charge and discharge processes of this Solar energy charger use ABOV 97F1204SMBN chips.Chip structure letter
Single, with 51 kernels, programming is convenient.And only need 3.3V can normal work, small power consumption fills for Solar energy charger is this
For the little electronic product of electrical power, the chip is also quite adapted to.Charge and discharge process is controlled with MCU, the process can be made more smart
Really.
In order to which protection circuit is not over-pressed, this Solar energy charger devises an overvoltage crowbar with TM1584 chips.
The circuit can realize that 12V is depressured to 5V voltage conversion, and transformation efficiency reaches 96%.
In order to protect battery, this Solar energy charger is also used in addition to relying on BQ24195 chips and carrying out circuit protection
PMOS, is protected to circuit.Prevent from jumping, bust causes damage to circuit.
Discharge circuit provides different mainly by BQ24195 chips and MCU master control synergic adjustments according to the difference of lithium battery
Charging scheme, significantly more efficient protection battery extends battery life.
What is laid in overall structure in the square frame away from charging port is that 1cm gaps, gap are left around battery core, battery core
In added sponge be used for damping, prevent battery core from shaking damage due to motion.Far Left is rotary switch, and rightmost is used for cabling
Groove, in order to reasonable cabling, be hardly damaged.Above add mu balanced circuit and charge-discharge circuit in groove square frame.
Brief description of the drawings
Fig. 1 is charge-discharge circuit system block diagram of the present invention；
Fig. 2 is MCU control circuit schematic diagram of the present invention；
Fig. 3 is that 12V of the present invention is depressured to 5V mu balanced circuit schematic diagrams；
Fig. 4 is that BQ24195 of the present invention controls circuit theory diagrams；
Fig. 5 is lithium cell charging procedural block diagram of the present invention；
Fig. 6 is lithium cell charging process line chart of the present invention；
Fig. 7 is present procedure control flow chart.
Embodiment
Fig. 1 first is charge-discharge circuit system block diagram, and solar panels are collected into luminous energy and are converted into after electric energy, by mu balanced circuit
12V photovoltaic conversions be 5V after, electric energy input charge-discharge circuit in, via charge-discharge circuit control input into battery core.Wherein,
MCU is in charging or discharge mode as master control, control BQ24195 charge-discharge circuit.First, charge mode is BQ24195
Chip controls are the electrical power storage after solar panels and Voltage stabilizing module conversion into battery, and MCU is used for error correction and identification outside is set
It is standby, the Four processes of BQ24195 chip controls charging.In discharge mode, equally, the electric energy of battery core is output in equipment.
MCU first is detected voltage, according to voltage swing, is judged battery types, then pass through I by AD conversion2C initializes BQ24195
Chip, makes PMID pins export corresponding charging current and voltage, charging.In this process, constantly detection circuit is electric by MCU
Pressure, until he reaches the threshold voltage specified, i.e., full electric threshold value then stops charging.
Reference picture 2, Fig. 3 and Fig. 4, Solar energy charger is further described.
MCU control circuit is illustrated in figure 2, the effect of the circuit is that rationally effective control is carried out to solar recharging.
First, single-chip microcomputer is by BQ24195 SYS pin powereds, and supply voltage is 3.3V.P00-P03 is initialized as low level, and LED is common
Anode and respectively series resistance R12-R15, are then connected with P00-P03 respectively.P04 is initialized as low level, switch KEY one end
It is connected with resistance R22 one end, the other end is connected with SYS pins, the resistance other end is connected with single-chip microcomputer pin P04.Resistance R23
One end is connected with PMID pins, and the other end is connected with electric capacity one end and P15 is connected, and the electric capacity other end is connected with GND, and P15 is used for
AD conversion, the part act as by AD conversion obtain cell voltage, judge battery types and charging process.P21, P20,
P17 is connected with SDA, SCL, INT pin of BQ24195 chips respectively, for data communication.P16 withPin is connected.When
When USBIN ports are without input,Pin is high level.When outside effectively equipment access,Pin is dragged down automatically, single-chip microcomputer
Detect after the signal, detect the type of access device, such as charged battery is 4.2V, then passes through I2C buses, to BQ24195
Chip is initialized, modification charging current bound and charging quickly stream size.Meanwhile, detect after equipment access, electricity is carried
Show that LED will be lighted.Four LED are had, each represents a lattice electricity, due to not adding high-accuracy voltage detection, therefore, electricity
Obtained by the MCU direct AD conversion of P15 pins, so this part strictly can not precisely show electricity, but still through repairing
Change program, reach satisfied effect.
It is mu balanced circuit shown in Fig. 3, MP1584 highests conversion efficiency can reach 96%.Due to present many solar panels, electricity
Pressure is more than 5V, therefore for protection circuit, it is necessary to which by Voltage stabilizing module, voltage is limited in 5V or so.At SunIn+ ends, access
One electric capacity and a resistance, for filtering burr, that is, jump or bust signal, it is to avoid chip is burnt out, while separately
One end is connected with the VIN pins of MP1584 chips.In order to obtain more stable output, it is connected between BST, SW1 and FB pin
One section that electric capacity C11, C11 are connected between protection circuit, including BST and SW1 is connected with BST, the other end and voltage-stabiliser tube one end phase
Even, while this is terminated with LC concussions loop, for filter switch peak value, voltage-stabiliser tube other end ground connection.PB pins and VIN+ ends
Mouth is connected, and is grounded in resistance R18 series connection.COMP pins are connected with C13, C14 one end, and C13 is another to be terminated with resistance R21, R21
With C14 other ends ground connection.GND pin connect simultaneously simulation and digitally.
Fig. 4 show BQ24195 chip discharge circuit theory diagrams.The chip passes through I by single-chip microcomputer2C buses carry out initial
Change, here is that the circuit is discussed in detail.On hardware, PMOS is accessed in VBUS leads ends, for preventing from jumping, bust signal
Burn out chip.Secondly, in STAT pins and REGN leads ends, LED is accessed, for cue circuit work.Draw in SDA, SCL, INT
Foot, has connect 10K pull-up resistors respectively, and in the other end, respectively with the P21 of single-chip microcomputer, P20, P17 is connected.VBUS、D+、D-
VIN+ ports in MicroUSB, D+ pins, D- pins are connected to, VIN- ports correspond to GND.This charge port passes through
MicroUSB charges to the battery core of Solar energy charger, and this charger baby supports normal charge and solar recharging two ways.
SYS pins, are connected with ABOV 97F1204SMBN VDD pins, are that master control is powered.The PMID pins and USB Vin+ of chip
Port is connected, and for charger baby supplying power for outside, this part is also added into temperature sensor, is connected to TS1 pins and TS0 pins, uses
In temperature detection, when temperature is too high, the chip can be automatically stopped charging.BAT pins connect battery core, control battery core discharge and recharge.
Software aspects, pass through I2C is first initialized to chip, by taking 4.2V lithium cell chargings as an example.It is first, single when equipment is inserted
Piece machine examination measurement equipment voltage, if 3.0V<U<4.2V, then single-chip microcomputer BQ24195 is initialized as 4.2V by analyzing after AD results
The charge mode of lithium battery.First pass through I2Address is revised as 0x38, i.e. input voltage for 0x30 REG00 registers and limited by C
For no more than 5.08V.Secondly, the value address for 0x30 REG00 registers is revised as 0x0B | 0X38, i.e., input current
Define no more than 2A.Due to single-chip microcomputer be 3.3V can normal work, voltage be no more than 3.6V, then system voltage be set as
3.5V, that is, SYS pins output 3.5V.It can be added by the way that 0x0B is revised as in address for the value of 0x1B REG01 registers
To realize.In charging process, it is quick charge when voltage is between 3.0V to 4.2V, for 4.2V lithium batteries, fills
Electric current is up to 2.1A, and for safety and efficiency consideration, we select charging current to be 1.5A, i.e., be 0x60's address
The value of REG02 registers is changed to 0x60 and can be achieved.Because charging current maximum is 1500mA, its preliminary filling and stopping electric current are equal
About the 10% of its maximum, i.e. 128mA, then register REG03 value is 0x11, and address is 0x11.Backward, in addition it is also necessary to set
Put preliminary filling threshold value, house dog enable etc..
Fig. 5 is charge control flow chart, according to the voltage condition detected, determines to use that charging process.It is U first
<It is low pressure constant-current charge, 3.0V during 3.0V<U<It is constant-voltage charge pattern, 4.1V during 4.1V<U<4.2V constant pressures, constant current mode, U=
4.2V constant pressures, low stream mode.This Four processes, by BQ24195 chip controls, MCU only needs to change its register value.
Fig. 6 is the detailed description to four charging processes, and first in trickle charge, now voltage x current slowly rises,
In pre-charge process, electric current is slowly increased, when reaching quick charge and voltage-regulation process, and electric current increase, voltage constant fills soon
When, electric current speedup is accelerated, until it reaches a little slower threshold voltage.Then constant-voltage charge.
Fig. 7 is its program flow diagram, is initialized after BQ24195 chips, this process is performed automatically, still, in order to which safety rises
See, by the way of MCU and BQ24195 chip co- controllings, when MCU detects abnormal, I can be passed through2C modification electric discharge cores
Piece attribute, stops electric discharge, protection circuit.First, start-up circuit, first detects access device, if nothing, continues to detect.If having
Equipment is accessed, then detection device voltage swing, I is passed through if greater than 5.08V, MCU2C makes BQ24195 chips be stopped.If
Less than 5.08V, whether detection device voltage is less than 3.0V, if being less than, is charged with low pressure, low stream.If voltage U is met,
3.0V<U<4.1V, then constant-voltage charge, electric current slowly rises.When the conditions set forth above are not met, 4.1V is judged<U<4.2V whether into
It is vertical, if so, then constant pressure, constant-current charge.Enter constant pressure, low current charge pattern as U=4.2V.If each of the above link into
It is vertical, constantly it can all charge in this mode in this process, untill it meets next condition.Algorithmically, when
When having equipment insertion, first pass through AD conversion and read cell voltage, battery types are judged according to cell voltage.Then according to battery class
Type passes through I2C goes out to initialize BQ24195 chips, is initialized as being adapted to the charge mode of the rechargeable battery.In charging process, no
It is open close to cross the voltage that AD reads battery, according to the lithium battery actual conditions of charging process, the attribute of BQ24195 chips is changed, no
Same charging process, is charged with different electric currents, voltage to battery, to protect battery.When without equipment, continuous surface sweeping inspection
Measurement equipment.
In overall structure, what is laid in the square frame away from charging port is that 1cm gaps are left around battery core, battery core, seam
Add sponge to be used for damping in gap, prevent battery core from shaking damage due to motion.Far Left is rotary switch, and rightmost is cabling
Groove, in order to reasonable cabling, is hardly damaged.Above add mu balanced circuit and charge-discharge circuit in groove square frame.
By the description of said structure and principle, the present invention is not limited to above-mentioned embodiment, and this technology is led
Domain it will be appreciated by the skilled person that on the basis of the present invention using field known technology improvement and replacement belong to the present invention
In protection domain.
Claims (6)
1. the Solar energy charger of the intelligent and high-efficiency rate based on BQ24195 chips, it is characterised in that the charger baby includes collapsible
Housing (1), solar panel (2), surface of shell is provided with USB interface (3), and display lamp (4) is switched (5), USB interface (3)
With lithium battery, internal circuit includes high efficiency charging circuit, MCU control charge and discharges process, circuit voltage-stabilizing protection, battery protection electricity
Road, discharge circuit, solar panel are connected with Voltage stabilizing module, and mu balanced circuit is connected with charge-discharge circuit, charge-discharge circuit and lithium electricity
Pond is connected.
2. the Solar energy charger of the intelligent and high-efficiency rate according to claim 1 based on BQ24195 chips, its feature exists
In：The Solar energy charger high efficiency charging circuit, in order that the electric energy that changes into of solar energy is efficient to be stored in lithium electricity
Chi Shang, using the integrated IC of portable power source charging solution provided by TI companies:BQ24195 chips.
3. the Solar energy charger of the intelligent and high-efficiency rate according to claim 1 based on BQ24195 chips, its feature exists
In：MCU control charge and discharge process uses ABOV 97F1204SMBN chips, and the chip structure is simple, with 51 kernels, for
Solar energy charger, it is possible to achieve intelligent charge and discharge.
4. the Solar energy charger of the intelligent and high-efficiency rate according to claim 1 based on BQ24195 chips, its feature exists
In：The Solar energy charger charge-discharge circuit utilizes BQ24195 chips and MCU synergic adjustments.
5. the Solar energy charger of the intelligent and high-efficiency rate according to claim 1 based on BQ24195 chips, its feature exists
In：The overvoltage crowbar is protected using TM1584 chips and PMOS to circuit.
6. the Solar energy charger of the intelligent and high-efficiency rate according to claim 1 based on BQ24195 chips, its feature exists
In：What the Solar energy charger was laid in the square frame away from charging port is that 1cm gaps are left around battery core, battery core, seam
Add sponge to be used for damping in gap, prevent battery core from shaking damage due to motion, Far Left is rotary switch, and rightmost is cabling
Groove, before in groove square frame plus mu balanced circuit and charge-discharge circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710540271.XA CN107093923A (en) | 2017-07-05 | 2017-07-05 | High-efficiency solar charger baby based on BQ24195 chips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710540271.XA CN107093923A (en) | 2017-07-05 | 2017-07-05 | High-efficiency solar charger baby based on BQ24195 chips |
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| Publication Number | Publication Date |
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| CN107093923A true CN107093923A (en) | 2017-08-25 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710540271.XA Pending CN107093923A (en) | 2017-07-05 | 2017-07-05 | High-efficiency solar charger baby based on BQ24195 chips |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170302095A1 (en) * | 2016-04-18 | 2017-10-19 | Vitec Videocom Inc. | Smart charger with selective discharge capability |
| WO2019071556A1 (en) * | 2017-10-13 | 2019-04-18 | 深圳传音通讯有限公司 | Charging circuit for use with smart terminal and smart terminal having circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204538754U (en) * | 2015-04-23 | 2015-08-05 | 张宙 | High integrated multifunction portable power source |
| CN205029382U (en) * | 2015-09-30 | 2016-02-10 | 余姚市杭佳电子有限公司 | Solar charging po |
| CN205790223U (en) * | 2016-01-07 | 2016-12-07 | 深圳市汇业电子有限公司 | A kind of band SOC intelligent double copies dynamic lithium battery |
| CN207184124U (en) * | 2017-07-05 | 2018-04-03 | 哈尔滨理工大学 | High-efficiency solar charger baby based on BQ24195 chips |
-
2017
- 2017-07-05 CN CN201710540271.XA patent/CN107093923A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204538754U (en) * | 2015-04-23 | 2015-08-05 | 张宙 | High integrated multifunction portable power source |
| CN205029382U (en) * | 2015-09-30 | 2016-02-10 | 余姚市杭佳电子有限公司 | Solar charging po |
| CN205790223U (en) * | 2016-01-07 | 2016-12-07 | 深圳市汇业电子有限公司 | A kind of band SOC intelligent double copies dynamic lithium battery |
| CN207184124U (en) * | 2017-07-05 | 2018-04-03 | 哈尔滨理工大学 | High-efficiency solar charger baby based on BQ24195 chips |
Non-Patent Citations (1)
| Title |
|---|
| 卢小雷等: "为你的移动设备续航保驾 12款主流大容量移动电源专题评测", 《个人电脑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170302095A1 (en) * | 2016-04-18 | 2017-10-19 | Vitec Videocom Inc. | Smart charger with selective discharge capability |
| WO2019071556A1 (en) * | 2017-10-13 | 2019-04-18 | 深圳传音通讯有限公司 | Charging circuit for use with smart terminal and smart terminal having circuit |
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Application publication date: 20170825 |