CN107276135A - Charging device and charging method - Google Patents
Charging device and charging method Download PDFInfo
- Publication number
- CN107276135A CN107276135A CN201610218011.6A CN201610218011A CN107276135A CN 107276135 A CN107276135 A CN 107276135A CN 201610218011 A CN201610218011 A CN 201610218011A CN 107276135 A CN107276135 A CN 107276135A
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- China
- Prior art keywords
- voltage
- charging
- electrically connected
- voltage changer
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a charging device and a charging method. The charging device comprises an energy unit, a charging module and a charging interface, wherein the charging module comprises: a voltage converter and a power conditioning module, the power conditioning module further comprising: the first end of the pulse regulating switch is electrically connected with the output end of the voltage converter, and the second end of the pulse regulating switch is electrically connected with the charging interface; and the pulse width modulator is electrically connected with the control end of the pulse regulation switch, the average power of the voltage converter is changed by controlling the switch of the pulse regulation switch, and the pulse width modulator is also electrically connected with the energy unit so as to sample the output current and voltage signals of the energy unit and regulate the output pulse of the pulse width modulator according to the output current and voltage signals.
Description
Technical field
The present invention relates to circuit design field, more particularly to a kind of charging device and charging method.
Background technology
Portable charger of the prior art is used can provide the energy unit of energy, to another
One needs the terminal charged to be charged.The energy unit is, for example, lithium battery or solar panel
Deng.And have some energy units due to internal design feature, cause it that there is a maximum power point, only
Worked near maximum power point, the operating efficiency of the energy unit is only highest.And the terminal being electrically charged
Required voltage and current is often change, required especially for for the terminal for supporting quick charge
Voltage and current may change at any time.This cause energy unit can not all-the-time stable in maximum power point
Work nearby.The power output of the energy unit can be stablized therefore it provides a kind of, so as to improve described
The technical scheme of the delivery efficiency of energy unit, is prior art urgent problem to be solved.
The content of the invention
The technical problems to be solved by the invention, which are to provide, a kind of can stablize the output work of the energy unit
The charging device and charging method of rate.
In order to solve the above problems, the invention provides a kind of charging device, including energy unit, charging mould
Block and charging inlet, the charging module include：Voltage changer, with the energy unit and charging
Mouth is electrically connected with, the DC voltage that the voltage conversion for energy unit to be exported is used into charging；And work(
Rate adjustment module, is electrically connected with the energy unit and voltage changer, by adjusting the voltage transformation
The mode of the mean power of device, adjusts the power output of the energy unit, so as to improve the energy unit
Delivery efficiency, the power conditioning module further comprises：One pulse regulation is switched, the pulse regulation
The first end of switch and the output end of voltage changer are electrically connected with, and the second end is electrically connected with charging inlet；
And a pulse width modulator, the pulse width modulator is electrically connected with the control end that the pulse regulation is switched,
By controlling the switch that the pulse regulation is switched to change the output duty cycle of voltage changer, the pulsewidth is adjusted
Device processed is also electrically connected with the energy unit, is believed with the output current for the energy unit of sampling and voltage
Number, and the output pulse of the pulse width modulator is adjusted accordingly.
Optionally, in addition to one fills protocol identification module soon, it is electrical with the charging inlet and voltage changer
Connection, the charging instruction of charging module is come from for recognizing, and send to voltage changer to change voltage
The output voltage of converter.
Optionally, the protocol identification module of filling soon includes：Protocol analysis unit, the protocol analysis unit
It is electrically connected with the charging inlet, for being parsed from the charging instruction received by the charging inlet
The magnitude of voltage gone out needed for charging；Instruction sending unit, with the protocol analysis unit and voltage changer electricity
Property connection, for the magnitude of voltage obtained according to protocol analysis unit resolves, send output control and instruct to voltage
Converter, the magnitude of voltage for controlling the direct current signal of the output of the voltage changer is protocol analysis unit resolves
Obtained magnitude of voltage.
Optionally, the instruction sending unit includes：One pull-up resistor, the first end of the pull-up resistor with
The output end of voltage changer is electrically connected with, and the second end and the control end of the voltage changer are electrically connected with；
Multiple pull down resistors, the first end of each pull down resistor and the control end of voltage changer electrically connect
Connect, the second end of each pull down resistor is grounded by a voltage cut-out, the voltage cut-out
Control end is electrically connected with the protocol analysis unit.
Optionally, the energy unit is a solar cell, and the voltage changer becomes for DC-to-dc
Parallel operation.
Present invention also offers a kind of charging method, comprise the following steps：One energy unit is provided；Using one
The DC voltage that energy unit is exported is converted into the DC voltage that charging is used by voltage changer；According to being filled
The instruction of electric equipment changes the magnitude of voltage of voltage changer output；Voltage is adjusted by using a pulse width modulator
The mode of the output duty cycle of converter, to adjust the mean power of the voltage changer, so as to improve institute
State the delivery efficiency of energy unit.
Optionally, the energy unit is a solar cell, and the voltage changer becomes for DC-to-dc
Parallel operation.
It is an advantage of the current invention that by way of adjusting the mean power of the voltage changer, adjusting institute
The mode of the equivalent load of energy unit is stated, to stablize the power output of the energy unit, so as to improve institute
State the delivery efficiency of energy unit.
Brief description of the drawings
It is the structural representation of the embodiment of charging device one of the present invention shown in accompanying drawing 1.
It is the implementation steps schematic diagram of the embodiment of charging method one of the present invention shown in accompanying drawing 2.
Embodiment
The charging device and the embodiment of charging method provided below in conjunction with the accompanying drawings the present invention is done
Describe in detail.
It is the structural representation of the embodiment of charging device one of the present invention shown in accompanying drawing 1, including energy
Measure unit 11, charging module 12 and charging inlet 13.The electric energy that energy unit 11 is exported is electrically charged mould
After block 12 is changed, outwards charged by charging inlet 13.The terminal being electrically charged can be mobile phone or flat board
Computer etc..For supporting the terminal of quick charge, it is necessary to which charging inlet 13 provides the charging higher than 5V for it
Voltage, generally includes multiple specifications such as 5V/2A, 9V/1.67A, 12V/1.5A.This needs charging module
12 are according to circumstances adjusted.
In this embodiment, in order to realize above-mentioned regulatory function, charging module 12 becomes including voltage
Parallel operation 121, protocol identification module and load regulation module are filled soon.The protocol identification module of filling soon is entered
One step includes protocol analysis unit 130 and instruction sending unit 140.The load regulation module includes an arteries and veins
Reconstitute section switch 150 and a pulse width modulator 160.
The voltage changer 121 is electrically connected with the energy unit 11 and charging inlet 13, for inciting somebody to action
The DC voltage that energy unit 11 is exported is converted into the DC voltage that charging is used.Protocol identification module is filled soon
It is electrically connected with the charging inlet 13 and voltage changer 121, comes from charging module for recognizing
Charging instruction, and send to voltage changer 121 to change the output voltage of voltage changer 121.Filled
Electric terminals can be sent and initiate the order of quick charge to charging inlet 13 if necessary to quick charge.Association is filled soon
View identification module can recognize the order, and be sent to voltage changer 121, drive it to change output voltage.
Generally include multiple patterns such as 5V/2A, 9V/1.67A, 12V/1.5A.And change after output voltage, voltage
The power output of converter 121 changes therewith, and this causes the power output of energy unit 11 also to occur
Change.
For the energy production arrangement of some types, such as solar cell or magneto, it is present
One maximum power point, this is determined by its internal generating mechanism.The energy unit only on the power points
11 transformation efficiencies that the other kinds of energy (such as solar energy) is converted into electric energy are only maximum.And it is electric
After the output of buckling parallel operation 121 changes, if not being subject to auxiliary adjustment means, it is clear that energy can be changed
The power output of unit 11 is measured, the delivery efficiency reduction of energy unit 11 is may result in.It is specific real at this
Apply in mode, energy unit 11 is solar cell, and then voltage changer 121 is DC-dc conversion
Device.It is electrically connected with using load regulation module with the energy unit 11 and voltage changer 121.Load
The effect of adjustment module is that the equivalent load of the energy unit 11 can be adjusted.By adjusting equivalent negative
Carry, to stablize the power output of the energy unit 11 in maximum power point, so as to improve the energy list
The delivery efficiency of member 11.
In this embodiment, the protocol identification module of filling soon further comprises protocol analysis unit
130 and instruction sending unit 140.The protocol analysis unit 130 is electrically connected with the charging inlet 13,
For parsing the charging instruction received by the charging inlet 13.The charging instruction can be standard
Charge protocol instruction, such as the QC2.0 of high pass or the customized instruction set of manufacturer.Association
View resolution unit 130 sends analysis result to instruction sending unit 140 according to default algorithm.Instruction hair
Unit 140 is sent to be electrically connected with the protocol analysis unit 130 and voltage changer 121.Instruction is sent
Unit 140 is received after the result of the transmission of protocol analysis unit 130, is sent an output control and is instructed to voltage change
Parallel operation 121, controls the voltage changer 121 to export corresponding DC voltage.
In present embodiment, charging inlet 13 includes high level output end V+, low level output end
V-, boosting terminal D+ and decompression terminal D-.Protocol analysis unit 130 according to boosting terminal D+ and
Decompression terminal D- signal resolution goes out result and sent to output end.The output end of protocol analysis unit 130
Including multiple pins, charging instruction selection output high level that each pin is sent according to charging inlet 13 or
Person's low level.Instruction sending unit 140 then includes a pull-up resistor R1, and multiple pull down resistors, this tool
Body embodiment is pull down resistor R2 and R3, and instruction sending unit 140 also includes build-out resistor R4.Institute
State pull-up resistor R1 first end and the output end of voltage changer 121 be electrically connected with, the second end with it is described
The control end Vf of voltage changer 121 is electrically connected with；Build-out resistor R4 first end and the voltage transformation
The control end Vf of device 121 is electrically connected with, the second end ground connection.Under each in pull down resistor R2 and R3
The first end of pull-up resistor is electrically connected with the control end Vf of voltage changer 121, pull down resistor R2 and R3
In each pull down resistor the second end pass through voltage cut-out K2 and K3 ground connection.The voltage control
System switch K2 and K3 control end is electrically connected with the protocol analysis unit 130, specifically often
Individual switch is electrically connected on the pin of an output end of protocol analysis unit 130.Voltage cut-out
K2 and K3 according to the pin level of the output end of view resolution unit 130 come selecting switch state so that will under
In the network of pull-up resistor R2 and R3 access pull down resistor, with the control end Vf of control voltage converter 121
Level.Build-out resistor R4 is optional component, the maximum level for adjusting control end Vf.
In present embodiment, the output pin of protocol analysis unit 130 is two, corresponding drop-down electricity
Resistance and voltage cut-out are also two, can if the output pin number increase of protocol analysis unit 130
To control the output mode of more gears, corresponding pull down resistor and voltage cut-out should also increase to identical
Number.
In present embodiment, the load regulation module is by adjusting the flat of the voltage changer 121
The mode of equal power stablizes the power output of the energy unit 11.Therefore the load regulation module includes
One pulse regulation switch 150 and a pulse width modulator 160.The first end of the pulse regulation switch 150
It is electrically connected with the output end of voltage changer 121, the second end is electrically connected with charging inlet 13；It is described
The control end that pulse width modulator 160 switchs 150 with the pulse regulation is electrically connected with.Pulse width modulator 160
A pulse signal is exported, the control end of pulse regulation switch 150 performs switch behaviour according to the level of pulse signal
Make, pulse regulation switchs voltage changer 121 under 150 closed modes and is output as 0, therefore passes through control
The switch of the pulse regulation switch 150 can change output duty cycle and then the change of voltage changer 121
Mean power.The pulse width modulator 160 is also electrically connected with the energy unit 11, described to sample
The output current and voltage signal of energy unit 11, and the output of the pulse width modulator 160 is adjusted accordingly
Pulse.Output pulse of adjusting specifically includes the frequency and dutycycle of regulation output pulse, is exported by adjusting
Pulse can change the mean power of voltage changer 121, and then change the input work of voltage changer 121
Rate.And the input power of voltage changer 121 is provided by energy unit 11, therefore change input power
The output current and voltage of energy unit 11 can directly be changed.By above-mentioned regulating measure, by energy unit
11 output current and voltage signal is stable in maximum power point, reaches the raising delivery efficiency of energy unit 11
Purpose.
It is the implementation steps schematic diagram of an embodiment of charging method of the present invention shown in accompanying drawing 2.
Including：There is provided an energy unit by step S20；Step S21, using a voltage changer by energy unit
The DC voltage of output is converted into the DC voltage that charging is used；Step S22, according to the finger for being electrically charged equipment
Order changes the magnitude of voltage of voltage changer output；Step S23, voltage is adjusted by using a pulse width modulator
The mode of the output duty cycle of converter, to adjust the mean power of the voltage changer, so as to improve institute
State the delivery efficiency of energy unit.
It is using above method, the output current of energy unit and voltage signal is stable in maximum power point, reach
To the purpose for improving energy unit delivery efficiency.
Described above is only the preferred embodiment of the present invention, it is noted that for the common of the art
Technical staff, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these
Improvements and modifications also should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of charging device, including energy unit, charging module and charging inlet, it is characterised in that institute
Stating charging module includes：
Voltage changer, is electrically connected with the energy unit and charging inlet, for energy unit to be exported
Voltage conversion into charging use DC voltage；And
Power conditioning module, is electrically connected with the energy unit and voltage changer, by adjusting the electricity
The mode of the mean power of buckling parallel operation, adjusts the power output of the energy unit, so as to improve institute
The delivery efficiency of energy unit is stated, the power conditioning module further comprises：
One pulse regulation is switched, and the first end of the pulse regulation switch and the output end of voltage changer are electrical
Connection, the second end is electrically connected with charging inlet；And
One pulse width modulator, the pulse width modulator is electrically connected with the control end that the pulse regulation is switched,
By controlling the switch that the pulse regulation is switched to change the output duty cycle of voltage changer, the arteries and veins
Wide modulator is also electrically connected with the energy unit, with the output current for the energy unit of sampling and
Voltage signal, and the output pulse of the pulse width modulator is adjusted accordingly.
2. charging device according to claim 1, it is characterised in that also fill protocol identification mould soon including one
Block, is electrically connected with the charging inlet and voltage changer, comes from charging module for recognizing
Charging instruction, and send to voltage changer to change the output voltage of voltage changer.
3. charging device according to claim 2, it is characterised in that described to fill protocol identification module bag soon
Include：
Protocol analysis unit, the protocol analysis unit and the charging inlet are electrically connected with, for from passing through
The magnitude of voltage needed for charging is parsed in the charging instruction that the charging inlet is received；
Instruction sending unit, is electrically connected with the protocol analysis unit and voltage changer, for basis
The magnitude of voltage that protocol analysis unit resolves are obtained, sends output control and instructs to voltage changer, control
The magnitude of voltage of the direct current signal of the output of the voltage changer is the electricity that protocol analysis unit resolves are obtained
Pressure value.
4. charging device according to claim 3, it is characterised in that the instruction sending unit includes：
One pull-up resistor, the first end of the pull-up resistor and the output end of voltage changer are electrically connected with, the
Two ends and the control end of the voltage changer are electrically connected with；
Multiple pull down resistors, the first end of each pull down resistor and the control end of voltage changer are electrical
Connection, the second end of each pull down resistor is grounded by a voltage cut-out, the voltage control
The control end of switch is electrically connected with the protocol analysis unit.
5. charging device according to claim 1, it is characterised in that the energy unit is a solar energy
Battery, the voltage changer is DC-DC converter.
6. a kind of charging method, it is characterised in that comprise the following steps：
One energy unit is provided；
The DC voltage that energy unit is exported is converted into by the direct current that charging is used using a voltage changer
Pressure；
Instruction according to equipment is electrically charged changes the magnitude of voltage that voltage changer is exported；
The mode of the output duty cycle of voltage changer is adjusted by using a pulse width modulator, it is described to adjust
The mean power of voltage changer, so as to improve the delivery efficiency of the energy unit.
7. charging method according to claim 6, it is characterised in that the energy unit is a solar energy
Battery, the voltage changer is DC-DC converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610218011.6A CN107276135A (en) | 2016-04-08 | 2016-04-08 | Charging device and charging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610218011.6A CN107276135A (en) | 2016-04-08 | 2016-04-08 | Charging device and charging method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107276135A true CN107276135A (en) | 2017-10-20 |
Family
ID=60052219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610218011.6A Pending CN107276135A (en) | 2016-04-08 | 2016-04-08 | Charging device and charging method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107276135A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108258762A (en) * | 2018-01-26 | 2018-07-06 | 深圳还是威健康科技有限公司 | A kind of quick-charging circuit and intelligent terminal for pre-installing battery system |
| CN108509372A (en) * | 2018-02-27 | 2018-09-07 | 晶晨半导体(上海)股份有限公司 | A kind of on-chip system chip |
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| CN2759033Y (en) * | 2004-12-29 | 2006-02-15 | 方幸福 | Two-mode type solar charger |
| CN1787717A (en) * | 2005-11-18 | 2006-06-14 | 清华大学 | Solar energy high voltage sodium lamp controller based on single stage inverter |
| CN102331808A (en) * | 2011-07-19 | 2012-01-25 | 天津光电惠高电子有限公司 | Solar maximum power point tracking system and method for implementing same |
| CN102437794A (en) * | 2011-12-16 | 2012-05-02 | 佛山市欧亚玛电器实业有限公司 | solar photovoltaic MPPT control system |
| CN203813491U (en) * | 2014-04-29 | 2014-09-03 | 深圳市前海富达科技有限公司 | Charging adapter device |
-
2016
- 2016-04-08 CN CN201610218011.6A patent/CN107276135A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2759033Y (en) * | 2004-12-29 | 2006-02-15 | 方幸福 | Two-mode type solar charger |
| CN1787717A (en) * | 2005-11-18 | 2006-06-14 | 清华大学 | Solar energy high voltage sodium lamp controller based on single stage inverter |
| CN102331808A (en) * | 2011-07-19 | 2012-01-25 | 天津光电惠高电子有限公司 | Solar maximum power point tracking system and method for implementing same |
| CN102437794A (en) * | 2011-12-16 | 2012-05-02 | 佛山市欧亚玛电器实业有限公司 | solar photovoltaic MPPT control system |
| CN203813491U (en) * | 2014-04-29 | 2014-09-03 | 深圳市前海富达科技有限公司 | Charging adapter device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108258762A (en) * | 2018-01-26 | 2018-07-06 | 深圳还是威健康科技有限公司 | A kind of quick-charging circuit and intelligent terminal for pre-installing battery system |
| CN108509372A (en) * | 2018-02-27 | 2018-09-07 | 晶晨半导体(上海)股份有限公司 | A kind of on-chip system chip |
| CN108509372B (en) * | 2018-02-27 | 2022-04-01 | 晶晨半导体(上海)股份有限公司 | System-on-chip |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171020 |
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| RJ01 | Rejection of invention patent application after publication |