CN104410114A - Mobile power source - Google Patents
Mobile power source Download PDFInfo
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- CN104410114A CN104410114A CN201410610744.5A CN201410610744A CN104410114A CN 104410114 A CN104410114 A CN 104410114A CN 201410610744 A CN201410610744 A CN 201410610744A CN 104410114 A CN104410114 A CN 104410114A
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- load
- power source
- charged state
- charge
- state detection
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a mobile power source. The mobile power source comprises an input port, an output port, a cell body, a charging management module and a load charging state detection module, wherein the charging management module is respectively connected with the input port, the cell body, the output port and the load charging state detection module, the input port is used for receiving power of an external power source and transmitting the power to the charging management module, the load charging state detection module is used for detecting a charging state of a load connected with the output port and outputting a corresponding charging mode control signal according to the charging state of the load, and the charging management module is used for controlling the external power source for charging the cell body or the load according to the charging mode control signal outputted by the load charging state detection module when the input port is connected with the external power source and the output port is connected with the load. The mobile power source can realize automatic charging state switching of the external power source between the cell body and the load and further has advantages of convenient and safe charging and high efficiency.
Description
Technical field
The present invention relates to field of power supplies, particularly relate to a kind of portable power source.
Background technology
Portable power source is a kind of portable charger integrating power supply and charge function, and it can charge or standby power whenever and wherever possible to digital equipments such as mobile phones.The features such as portable power source has Large Copacity, multipurpose, volume is little, the life-span is long and safe and reliable, can whenever and wherever possible for the multiple digital products such as mobile phone, MP3, MP4, mobile phone, PDA, palmtop PC are powered or the function of standby charging, the parent deeply by consumers in general looks at.
If current existing portable power source is connected charging with electronic product time, connect external power supply (220V civil power, adapter) simultaneously, so electronic product can disconnect with portable power source, can not charge, it can not meet user when wishing external power supply, portable power source can automatically switch charging modes, and final portable power source and electronic product are all the demands of full power state.
Summary of the invention
In order to solve the problems of the technologies described above, the object of this invention is to provide a kind of portable power source.
The technical solution adopted in the present invention is: a kind of portable power source, comprising: input port, output port, battery main body, charge management module, load charged state detection module;
Described charge management module is connected with described input port, battery main body, output port, load charged state detection module respectively;
Described input port, it is for receiving external power source and being transferred to described charge management module;
Described load charged state detection module, it, for detecting the charged state of the load be connected with described output port, exports corresponding charge mode control signal according to the charged state of load;
When described charge management module connects external power source at described input port, described output port connects load, charge to described battery main body or load according to the charge mode control signal control external power source that described load charged state detection module exports.
Preferably, described load charged state detection module detects the electric current of the load be connected with described output port and the electric current of described load and the charge cutoff electric current preset is compared;
When the electric current of described load is greater than default charge cutoff electric current, described load charged state detection module output loading charge mode control signal, to described charge management module, makes charge management module control external power source and charges to described load;
When the electric current of described load is less than default charge cutoff electric current, described load charged state detection module exports battery body charge mode control signal to described charge management module, makes charge management module control external power source and charges to described battery body.
Preferably, described charge management module comprises boost control chip and charge mode switching controls switch;
The voltage input pin of described boost control chip is connected with described input port;
The power pins of described boost control chip is connected with described battery main body;
The battery charging enable pin of described boost control chip is connected with the output of described load charged state detection module;
The voltage output pin of described boost control chip is connected with described output port;
Described input port is connected with described output port by described charge mode switching controls switch;
The control end of described charge mode switching controls switch is connected with the output of described load charged state detection module.
Preferably, described charge mode switching controls switch is PMOS, and the grid of described PMOS is the control end of described charge mode switching controls switch, and the source electrode of described PMOS connects described input port, and the drain electrode of described PMOS connects described output port.
Preferably, described load charged state detection module comprises: comparator, load current sampling resistor, default charge cutoff given value of current circuit, logic level transition control chip;
One end of described load current sampling resistor is respectively with the negative pole of described output port with the inverting input of described comparator is connected, the other end connects earthing potential;
Described default charge cutoff given value of current circuit comprises the first resistance, the second resistance, series connection is between the positive pole and earthing potential of described output port successively for described first resistance, the second resistance, and described first resistance is connected the in-phase input end of described comparator with the tie point of the second resistance;
The output of described comparator connects the input of described logic level transition control chip, and the output of described logic level transition control chip is as the output of described load charged state detection module.
Preferably, the output of described logic level transition control chip is connected with charge mode switching indicator light.
Preferably, the output of described load charged state detection module is connected with the control end of described charge mode switching controls switch by a dropping resistor, is parallel with a current-limiting resistance between the control end of described charge mode switching controls switch and earthing potential.
Preferably, described battery body is lithium battery, and described lithium battery two ends are connected with RC filter circuit and lithium battery protection circuit.
The invention has the beneficial effects as follows:
Portable power source of the present invention at the same time external power supply and load time, according to load charged state, control external power supply charge to battery main body or load; Finally make battery main body and load all full chargings; The electricity of whole process not loss portable power source internal cell main body, charge efficiency is high, and external power supply automatically switches to the charged state of battery main body, load, has the beneficial effects such as charging is convenient, safety, efficiency are high.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
Fig. 1 is a kind of portable power source structural representation of the present invention;
Fig. 2 is that a kind of portable power source of the present invention specifically implements structural representation;
Fig. 3 is a kind of portable power source specific embodiment electrical block diagram;
Fig. 4 is the electrical block diagram of charge management module in a kind of portable power source specific embodiment circuit structure;
Fig. 5 is the electrical block diagram of load charged state detection module in a kind of portable power source specific embodiment circuit structure;
Fig. 6 is the electrical block diagram that in a kind of portable power source specific embodiment circuit structure, charge management module is connected with load charged state detection module.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Fig. 1 is a kind of portable power source structural representation of the present invention, and as shown in Figure 1, a kind of portable power source 1 of the present invention, comprising: input port 103, output port 105, battery main body 102, charge management module 101, load charged state detection module 104; Charge management module 101 is connected with input port 103, battery main body 102, output port 105, load charged state detection module 104 respectively;
Input port 103, it is for receiving external power source and being transferred to charge management module 101;
Load charged state detection module 104, it, for detecting the charged state of the load be connected with output port 103, exports corresponding charge mode control signal according to the charged state of load;
When charge management module 101 connects external power source at input port 103, output port 105 connects load, charge to battery main body 102 or load according to the charge mode control signal control external power source that load charged state detection module 104 exports.
Load charged state detection module 104 detect the load be connected with output port 105 electric current and by the electric current of load and charge cutoff electric current compare;
When the electric current of load is greater than default charge cutoff electric current, load charged state detection module 104 output loading charge mode control signal, to charge management module 101, makes charge management module 101 control external power source and charges to load;
When the electric current of load is less than default charge cutoff electric current, load charged state detection module 104 exports battery body charge mode control signal to charge management module 101, makes charge management module 101 control external power source to battery body charging 102.Battery body 102 adopts lithium battery in the present embodiment, is connected with RC filter circuit and lithium battery protection circuit at lithium battery two ends, and external power source adopts 220V to turn the power supply adaptor of DC Module output 5V.
Fig. 2 is that a kind of portable power source of the present invention specifically implements structural representation, Fig. 3 is a kind of portable power source specific embodiment electrical block diagram, as shown in Figures 2 and 3, in the present embodiment, charge management module 101 comprises boost control chip 1011 and charge mode switching controls switch 1012; Charge mode switching controls switch 1012 adopts PMOS; Load charged state detection module 104 comprises: comparator 1043, load current sampling resistor 1041, charge cutoff given value of current circuit 1042, the logic level transition control chip 1044 preset.Fig. 5 is the electrical block diagram of load charged state detection module in a kind of portable power source specific embodiment circuit structure, as shown in Figure 3 and Figure 5, one end of load current sampling resistor 1041 is respectively with the negative pole of output port 105 with inverting input-the IN of comparator 1042 is connected, the other end connects earthing potential;
The charge cutoff given value of current circuit 1043 preset comprises the first resistance R1, the second resistance R2, series connection is between the positive pole and earthing potential of output port 105 successively for first resistance R1, the second resistance R2, and the first resistance R1 is connected the in-phase input end+IN of comparator 1042 with the tie point of the second resistance R2;
The output OUT of comparator 1042 connects the input GP3 of logic level transition control chip 1044, and the output GP1 of logic level transition control chip 1044 is as the output of load charged state detection module.
Fig. 4 is the electrical block diagram of charge management module in a kind of portable power source specific embodiment circuit structure, and as shown in Figure 4, the voltage input pin DC_IN of boost control chip 1011 is connected with input port 103; The power pins BAT of boost control chip 1011 is connected with battery main body 102; The voltage output pin VOUT of boost control chip 1011 is connected with output port 105; The battery charging enable pin LOAD_ON of boost control chip 1011 is connected with the control end of charge mode switching controls switch 1012 and the drain electrode of PMOS, the start signal of the battery charging function of boost control chip 1011 is contrary with charge mode switching controls switch 1012 Continuity signal, in the present embodiment, the start signal of the battery charging function of boost control chip 1011 is high level, and charge mode switching controls switch 1012 Continuity signal is low level.
Fig. 6 is the electrical block diagram that in a kind of portable power source specific embodiment circuit structure, charge management module is connected with load charged state detection module, as shown in Figure 6, the battery charging enable pin LOAD_ON of boost control chip 1011 is connected with the output GP1 of logic level transition control chip 1044 by a dropping resistor R4 with the control end of charge mode switching controls switch 1012 and the drain electrode of PMOS, is parallel with a current-limiting resistance R4 at the control end of charge mode switching controls switch 1012 and between the drain electrode of PMOS and earthing potential.The output of logic level transition control chip 1044 is connected with charge mode switching indicator light in the present embodiment, for the charge mode of pointing out user current.
Input port 103 is connected with output port 105 by PMOS, the source electrode of PMOS connects input port 103, the drain electrode of PMOS connects output port 105, and the grid of PMOS is connected as the control end of charge mode switching controls switch 1012 and the battery of the boost control chip 1011 enable pin LOAD_ON that charges.
Below to portable power source of the present invention the course of work be described.
As shown in Figure 5, inverting input-the IN of the comparator 1043 of load charged state detection module 104 is cathodal current sampling inputs, the in-phase input end of comparator 1043 connects default charge cutoff given value of current circuit 1041, relatively current parameters is adjustable, adjustment first resistance R1 can be passed through, second resistance R2 obtains the current parameters value needed, such as, in the present embodiment the second resistance R2 is set to 820 ohm, first resistance R1 is set to 100K, this parameter regulates the charge cutoff electric current preset to be 100mA, namely when load current is less than 100mA, be judged as load charging complete, when load circuit is greater than 100mA, be judged as that load is in charged state, when load current is less than 100mA, comparator output terminal OUT exports as low level, if load current is greater than 100mA, comparator output terminal exports as high level.
The input pin GP3 of the logic level conversion control chip 1044 of load charged state detection module 104 is level input control pin, receives the level signal that comparator 1043 output OUT exports; When logic level transition control chip 1044 input pin GP3 receives high level, when its output GP1 output low level, input pin GP3 receive low level, its output GP1 exports as high level.Comparator 1043 is outputed signal after logic level control chip 1044, is re-used as control signal output, control signal can be made more stable, overcome the generation of drift phenomenon.
When the output port 103 of portable power source 1 of the present invention connects load, when input port 103 connects external power source simultaneously, if load is in charged state, now, the output of logic level control chip 1044 by output low level to the battery charging enable pin LOAD_ON of boost control chip 1011 and the control end of charge mode switching controls switch 1012 and the drain electrode of PMOS; The battery charging enable pin LOAD_ON of boost control chip 1011 is that high level is effective, and boost control chip 1011 closes the charging to battery body 102; The conducting of PMOS low level; Input port 103 and output port 105 conducting, make external power source be that load is charged,
When load charging complete, now, the output of logic level control chip 1044 will export high level, the PMOS cut-off of charged state diverter switch 1012, and input port 103 and output port 105 disconnect; The battery charging enable pin LOAD_ON high level of boost control chip 1011 is effective, and boost control chip 1011 opens battery body charge function, and external power source is charged to battery body 102.
More than that better enforcement of the present invention is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite without prejudice to spirit of the present invention, and these equivalent distortion or replacement are all included in the application's claim limited range.
Claims (8)
1. a portable power source, is characterized in that: comprising: input port, output port, battery main body, charge management module, load charged state detection module;
Described charge management module is connected with described input port, battery main body, output port, load charged state detection module respectively;
Described input port, it is for receiving external power source and being transferred to described charge management module;
Described load charged state detection module, it, for detecting the charged state of the load be connected with described output port, exports corresponding charge mode control signal according to the charged state of load;
When described charge management module connects external power source at described input port, described output port connects load, charge to described battery main body or load according to the charge mode control signal control external power source that described load charged state detection module exports.
2. a kind of portable power source according to claim 1, is characterized in that: described load charged state detection module detects the electric current of the load be connected with described output port and the electric current of described load and the charge cutoff electric current preset compared;
When the electric current of described load is greater than default charge cutoff electric current, described load charged state detection module output loading charge mode control signal, to described charge management module, makes charge management module control external power source and charges to described load;
When the electric current of described load is less than default charge cutoff electric current, described load charged state detection module exports battery body charge mode control signal to described charge management module, makes charge management module control external power source and charges to described battery body.
3. a kind of portable power source according to claim 1 or 2, is characterized in that: described charge management module comprises boost control chip and charge mode switching controls switch;
The voltage input pin of described boost control chip is connected with described input port;
The power pins of described boost control chip is connected with described battery main body;
The battery charging enable pin of described boost control chip is connected with the output of described load charged state detection module;
The voltage output pin of described boost control chip is connected with described output port;
Described input port is connected with described output port by described charge mode switching controls switch;
The control end of described charge mode switching controls switch is connected with the output of described load charged state detection module.
4. a kind of portable power source according to claim 3, it is characterized in that: described charge mode switching controls switch is PMOS, the grid of described PMOS is the control end of described charge mode switching controls switch, the source electrode of described PMOS connects described input port, and the drain electrode of described PMOS connects described output port.
5. a kind of portable power source according to claim 2, is characterized in that: described load charged state detection module comprises: comparator, load current sampling resistor, default charge cutoff given value of current circuit, logic level transition control chip;
One end of described load current sampling resistor is respectively with the negative pole of described output port with the inverting input of described comparator is connected, the other end connects earthing potential;
Described default charge cutoff given value of current circuit comprises the first resistance, the second resistance, series connection is between the positive pole and earthing potential of described output port successively for described first resistance, the second resistance, and described first resistance is connected the in-phase input end of described comparator with the tie point of the second resistance;
The output of described comparator connects the input of described logic level transition control chip, and the output of described logic level transition control chip is as the output of described load charged state detection module.
6. a kind of portable power source according to claim 5, is characterized in that: the output of described logic level transition control chip is connected with charge mode and switches indicator light.
7. a kind of portable power source according to claim 3, it is characterized in that: the output of described load charged state detection module is connected with the control end of described charge mode switching controls switch by a dropping resistor, is parallel with a current-limiting resistance between the control end of described charge mode switching controls switch and earthing potential.
8. a kind of portable power source according to claim 1 or 2, is characterized in that: described battery body is lithium battery, and described lithium battery two ends are connected with RC filter circuit and lithium battery protection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410610744.5A CN104410114B (en) | 2014-11-03 | 2014-11-03 | Mobile power supply |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410610744.5A CN104410114B (en) | 2014-11-03 | 2014-11-03 | Mobile power supply |
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| CN104410114B CN104410114B (en) | 2017-10-24 |
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| CN201410610744.5A Active CN104410114B (en) | 2014-11-03 | 2014-11-03 | Mobile power supply |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634060A (en) * | 2016-01-27 | 2016-06-01 | 深圳市思远半导体有限公司 | Charge-discharge system and charge-discharge method for mobile power supply |
| CN105680438A (en) * | 2016-02-29 | 2016-06-15 | 杰华特微电子（张家港）有限公司 | Power supply circuit and system and method thereof |
| CN106787014A (en) * | 2017-03-07 | 2017-05-31 | 东莞市太业电子股份有限公司 | Mobile power supply with controllable output current |
| CN107086671A (en) * | 2016-02-12 | 2017-08-22 | 精工爱普生株式会社 | Control device, power receiving device, electronic device, power transmission system, and power supply method |
| CN107370212A (en) * | 2017-08-15 | 2017-11-21 | 宁夏黑金昊源绿能科技有限公司 | voltage switching output device and method |
| CN110676895A (en) * | 2018-07-03 | 2020-01-10 | 龚川耀 | A modular mobile power supply |
| CN112345867A (en) * | 2020-11-13 | 2021-02-09 | 昂宝电子（上海）有限公司 | Apparatus and method for load detection |
| WO2021031297A1 (en) * | 2019-08-16 | 2021-02-25 | 歌尔股份有限公司 | Charging case |
| CN113555915A (en) * | 2020-04-24 | 2021-10-26 | 沈阳晨讯希姆通科技有限公司 | Charging circuit |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634060A (en) * | 2016-01-27 | 2016-06-01 | 深圳市思远半导体有限公司 | Charge-discharge system and charge-discharge method for mobile power supply |
| CN105634060B (en) * | 2016-01-27 | 2018-04-24 | 深圳市思远半导体有限公司 | The charge-discharge system and its method of mobile power |
| CN107086671A (en) * | 2016-02-12 | 2017-08-22 | 精工爱普生株式会社 | Control device, power receiving device, electronic device, power transmission system, and power supply method |
| CN107086671B (en) * | 2016-02-12 | 2022-03-22 | 精工爱普生株式会社 | Control device, power receiving device, electronic apparatus, power transmission system, and power supply method |
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| CN105680438B (en) * | 2016-02-29 | 2019-05-14 | 杰华特微电子（张家港）有限公司 | A kind of power supply circuit and its system and method |
| CN106787014A (en) * | 2017-03-07 | 2017-05-31 | 东莞市太业电子股份有限公司 | Mobile power supply with controllable output current |
| CN107370212A (en) * | 2017-08-15 | 2017-11-21 | 宁夏黑金昊源绿能科技有限公司 | voltage switching output device and method |
| CN110676895A (en) * | 2018-07-03 | 2020-01-10 | 龚川耀 | A modular mobile power supply |
| WO2021031297A1 (en) * | 2019-08-16 | 2021-02-25 | 歌尔股份有限公司 | Charging case |
| CN113555915A (en) * | 2020-04-24 | 2021-10-26 | 沈阳晨讯希姆通科技有限公司 | Charging circuit |
| CN112345867A (en) * | 2020-11-13 | 2021-02-09 | 昂宝电子（上海）有限公司 | Apparatus and method for load detection |
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| CN104410114B (en) | 2017-10-24 |
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