CN107565642A - Portable power source - Google Patents
Portable power source Download PDFInfo
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- CN107565642A CN107565642A CN201710847642.9A CN201710847642A CN107565642A CN 107565642 A CN107565642 A CN 107565642A CN 201710847642 A CN201710847642 A CN 201710847642A CN 107565642 A CN107565642 A CN 107565642A
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- battery
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- power source
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Abstract
A kind of portable power source, including the charge-discharge control circuit of battery, the battery, the input interface for external power supply and the output interface for external load, the charge-discharge control circuit include：Detect the input detection module of the first electrical parameter of the input interface；Detect the output detection module of the second electrical parameter of the output interface；For the voltage transformation module to the battery charging and discharging；Control whether to charge to the battery according to first electrical parameter, the control module for controlling whether, to the load charging, to be charged and discharged the battery according to first electrical parameter and second electrical parameter control voltage transformation module according to second electrical parameter.Above-mentioned portable power source is by setting input and output detection module, detect the electrical parameter of input interface and output interface, discharge and recharge is carried out to battery according to electrical parameter control voltage conversion module so that the charging/discharging function of battery is simply controllable, improves the reliability and service life of portable power source.
Description
Technical field
The invention belongs to portable power source technical field, more particularly to a kind of portable power source.
Background technology
At present, with the development of science and technology, increasing digital electronic goods need to use power source charges, this power supply can be with
It is that the power supply with storage electric energy unit device is charged or had both directly to digital electronic goods.Power supply, which can be named, to be filled
It is electric precious, portable power source, fast charge charging portable power source, back splint power supply, external battery, charging partner etc., they are substantially exactly to number
Code electronic product provides the article of electric energy.
And existing portable power source is low due to design on control circuit complexity, reliability so that internal cell discharge and recharge can not
Control to reduce the life-span.
The content of the invention
It is an object of the invention to provide the portable power source that a kind of circuit is simple and reliable, it is intended to solves traditional technical scheme
Present in design on control circuit it is complicated, reliability is low so that internal cell discharge and recharge it is uncontrollable to reduce the life-span the problem of.
A kind of portable power source, including the charge-discharge control circuit of battery, the battery, for external power supply input interface with
And the output interface for external load, the charge-discharge control circuit include：
It is connected with the input interface, detects the input detection module of the first electrical parameter of the input interface；
It is connected with the output interface, detects the output detection module of the second electrical parameter of the output interface；
It is connected with the input interface, the output interface and the anode, for the battery charging and discharging
Voltage transformation module；
It is connected with input detection module, the output detection module and the voltage conversion circuit, according to described the
One electrical parameter controls whether to charge to the battery, is controlled whether according to second electrical parameter to the load charging, according to
First electrical parameter and second electrical parameter control the control that the voltage transformation module is charged and discharged to the battery
Module.
Further, the input detection module includes and the input interface, the anode and the control mould
Block connects, and compares the voltage for accessing power supply and the cell voltage size and exports the voltage comparison unit of trigger signal；
The control module controls the voltage transformation module to be operated in the electricity according to the effective trigger signal
Pond charged state.
Further, the voltage comparison unit include first switch pipe, the first electric capacity, the second electric capacity, first resistor and
Second resistance, wherein：
The control terminal of the first switch pipe connects the input interface by first electric capacity, the first switch pipe
Control terminal is also grounded by the first resistor, and the input of the first switch pipe connects the battery by the second resistance
Positive pole, the input of the first switch pipe also by second capacity earth, the input of the first switch pipe also with
The triggering port connection of the control module, the output head grounding of the first switch pipe.
Further, the input detection module also includes being connected with the input interface and the voltage transformation module,
The input interface is controlled to the overvoltage connected or ended between the voltage transformation module according to the voltage swing of access power supply
Protection location.
Further, the Overvoltage protecting unit includes an overvoltage protection chip.
Further, the input detection module also includes voltage-regulator diode, the anode and negative electrode of the voltage-regulator diode
It is connected respectively with the positive source pin and ground negative electrode of the input interface.
Further, the output detection module includes second switch pipe, sampling resistor, current-limiting resistance and the 3rd electric capacity,
Wherein：
The input of the second switch pipe terminates the ground pin of the output interface, the control termination of the second switch pipe
The switch control terminal mouth of the control module, the output of the second switch pipe terminate the first end of the sampling resistor and described
The first end of current-limiting resistance, the second end ground connection of the sampling resistor, the second termination control module of the current-limiting resistance
Sample port.
Further, the voltage transformation module includes DC-DC chips, inductor, the 4th electric capacity, the 5th electric capacity and the 3rd
Resistance, wherein：
The input pin of the DC-DC chips connects the input interface, and output pin connects the output interface, switched pins
The anode is connect by the inductor, anode pin connects the anode by the 3rd resistor, also logical
The 4th capacity earth is crossed, keying pin connects the controlling switch of DC-DC chips described in the control module output control；It is described
5th electric capacity one terminates the anode, other end ground connection.
Further, the control module includes single-chip microcomputer.
Further, the charge-discharge control circuit also includes battery protection module, the battery protection module with it is described
The both positive and negative polarity connection of battery, controls whether it turns on output loop according to the battery electric quantity.
Above-mentioned portable power source detects the electrical parameter of input interface and output interface by setting input and output detection module,
Discharge and recharge is carried out to battery according to electrical parameter control voltage conversion module so that the charging/discharging function of battery is simply controllable, improves
The reliability and service life of portable power source.
Brief description of the drawings
Fig. 1 is the structural representation of portable power source of the present invention；
Fig. 2 be Fig. 1 shown in portable power source in control module exemplary circuit schematic diagram；
Fig. 3 be Fig. 1 shown in portable power source in voltage comparison unit exemplary circuit schematic diagram；
Fig. 4 be Fig. 1 shown in portable power source in charge-discharge control circuit exemplary circuit schematic diagram；
Fig. 5 be Fig. 1 shown in portable power source in lithium battery protection module exemplary circuit schematic diagram.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Referring to Fig. 1, a kind of portable power source includes battery 10, the input interface 11 for external power supply and for external negative
The output interface 12 and charge-discharge control circuit of load, charge-discharge control circuit include input detection module 13, output detection mould
Block 14, voltage transformation module 15, control module 16 and lithium battery protection module 17.
Input detection module 13 is connected with input interface 11, detects the first electrical parameter of the input interface 11；Output detection
Module 14 is connected with output interface 12, detects the second electrical parameter of the output interface 14；Voltage transformation module 15 and input interface
11st, output interface 13 and anode BAT+ connections, for giving the discharge and recharge of battery 10；Control module 16 and input detection module
13rd, detection module 14 and voltage conversion circuit connection are exported, controls whether to charge to battery 10 according to the first electrical parameter, and according to
Second electrical parameter controls whether to charge to load, right always according to the first electrical parameter and the second electrical parameter control voltage conversion module 15
Battery 10 is charged and discharged.
Specifically, referring to Fig. 2 control modules 16 includes single-chip microcomputer IC1 and its peripheral circuit.In other embodiments,
Single-chip microcomputer IC1 can be ARM microprocessor.According to the first electrical parameter and the second electrical parameter control voltage conversion module 15 to battery
10 be charged and discharged be specially：Power supply is accessed in input interface 11, and the electrical parameter for accessing power supply meets the feelings of the first electrical parameter
Under condition, battery 10 can be charged, otherwise battery 10 then stops charging.Access and load in output interface 12, and load
In the case that electrical parameter meets the second electrical parameter, control battery 10 can be discharged and load is charged, otherwise battery 10 then stops
Electric discharge.
Fig. 1,2 and 3 are referred to, in a preferred embodiment, input detection module 13 includes voltage comparison unit 131, electricity
Pressure comparing unit 131 is connected with input interface 11, anode BAT+ and control module 16, compares the voltage of access power supply
INPUT and cell voltage size simultaneously export trigger signal PA3；Control module 16 is according to effective trigger signal PA3, control voltage
Conversion module 15 is operated in the charged state of battery 10.In this way, when the voltage INPUT for accessing power supply is bigger than cell voltage, electricity
Pressure comparing unit 131 exports effective trigger signal PA3 to control module 16, then 16 toggled output control of control module letter
Number control voltage comparing unit 131 works, and is operated in the state to be charged to battery 10.
Specifically, voltage comparison unit 131 includes first switch pipe Q1, the first electric capacity C9, the second electric capacity C37, the first electricity
Hinder R24 and second resistance R42.
First switch pipe Q1 control terminal connects input interface 11 by the first electric capacity C9, and first switch pipe Q1 control terminal is also
It is grounded by first resistor R24, first switch pipe Q1 input meets anode BAT+ by second resistance R42, and first opens
The input for closing pipe Q1 is also grounded by the second electric capacity C37, the triggering of first switch pipe Q1 input also with control module 16
Port MCLR/PA3 connections, first switch pipe Q1 output head grounding.When voltage INPUT is bigger than anode BAT+ voltage
First switch pipe Q1 is turned on, and the triggering port MCLR/PA3 of control module 16 voltage is pulled low and receives triggering, i.e. low level
For effective trigger signal PA3.It is understood that being connected for input detection module 13, the first electrical parameter is access power supply
Voltage INPUT；And for control module 16, the first electrical parameter is trigger signal PA3.
Specifically, first switch pipe Q1 manages for N-MOS, and first switch pipe Q1 input, output ends and control terminal are respectively
Drain electrode, source electrode and the grid of N-MOS pipes.In other embodiments, first switch pipe Q1 can be triode.
Fig. 1,2 and Fig. 4 are referred to, input interface 11 includes USB interface and electrode catheter interface J1.Further implementing
In mode, input detection module 13 also includes Overvoltage protecting unit 132, and pressure protection location 132 becomes with input interface 11 and voltage
Mold changing block 15 connects, and is connected according to the voltage INPU size control inputs interface 11 of access power supply between voltage transformation module 15
Or cut-off.Specifically, Overvoltage protecting unit 132 includes an overvoltage protection chip U2.Present embodiment exists, overvoltage protection chip U2
Chip model be SY8701.
Further, input detection module 13 also includes voltage-regulator diode ZD1/ZD2, voltage-regulator diode ZD1/ZD2 sun
Pole and negative electrode are connected GND/IN- with the positive source pin VCC/IN+ and ground negative electrode of input interface 11 respectively.
Refer to Fig. 1,2 and Fig. 4, in preferred embodiment, output detection module 14 is for detecting portable power source
Access state is loaded, its state is represented with the second electrical parameter.Specifically, exporting detection module 14 includes second switch pipe U4, adopts
Sample resistance R28, current-limiting resistance R11 and the 3rd electric capacity C13, wherein：
Second switch pipe U4 input D1/D2 meets the ground pin of output interface 12, second switch pipe U4 control terminal G1/
G2 meets the switch control terminal mouth ON/OFF of control module 16, and second switch pipe U4 output end S1/S2 connects the of sampling resistor R28
One end and current-limiting resistance R11 first end, sampling resistor R28 the second end ground connection, current-limiting resistance R11 the second termination control mould
The sample port AIN2 of block 16.The current/voltage size that control module 16 samples according to its sample port AIN2, controlled in switch
Port ON/OFF processed exports high/low level signal control second switch pipe U4 break-make, when second switch pipe U4 is turned on, load
Charge circuit conducting, then portable power source load can be charged, it is on the contrary then do not charge.It is understood that pair with output detect
For module 14, the electric current on sampling resistor R28 is the second electrical parameter, for control module 16, accesses sample port
AIN2 voltage swing is the second electrical parameter.
Refer to Fig. 1,2,3 and Fig. 4, in preferred embodiment, voltage transformation module 15 includes DC-DC chips U1, electricity
Sensor L1, the 4th electric capacity C12, the 5th electric capacity C10 and 3rd resistor R9.
DC-DC chips U1 input pin VIN connects input interface 11, and output pin VOUT connects output interface 12, and conversion is drawn
Pin SW meets anode BAT+ by inductor L1, and anode pin BAT meets anode BAT+ by 3rd resistor R9, electricity
Pond positive pole pin BAT is also grounded by the 4th electric capacity C12, and keying pin KEY meets the output control DC-DC chips U1 of control module 16
Controlling switch PC1；5th electric capacity C10 mono- terminates anode BAT+, other end ground connection.
With reference to voltage comparison unit 131, when the voltage INPUT for accessing power supply is bigger than cell voltage, voltage comparison unit
The 131 effective trigger signal PA3 of output are controlled to control module 16, then toggled exported in controlling switch PC1 of control module 16
Signal processed to DC-DC chips U1 keying pin KEY work so that DC-DC chips U1 is operated in the state to be charged to battery 10.
Further, Fig. 1 and Fig. 5, battery protecting circuit 17, the both positive and negative polarity of battery protecting circuit 17 and battery 10 are referred to
Connection, controls whether it turns on output loop according to the electricity of battery 10.In addition, also include battery capacity indication circuit.
Above-mentioned portable power source detects the electricity of input interface 11 and output interface 12 by setting input and output detection module 14
Parameter, discharge and recharge is carried out to battery 10 according to electrical parameter control voltage conversion module 15 so that the charging/discharging function letter of battery 10
It is single controllable, improve the reliability and service life of portable power source.
Only described above is presently preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
1. a kind of portable power source, including the charge-discharge control circuit of battery, the battery, the input interface for external power supply and
Output interface for external load, it is characterised in that the charge-discharge control circuit includes：
It is connected with the input interface, detects the input detection module of the first electrical parameter of the input interface；
It is connected with the output interface, detects the output detection module of the second electrical parameter of the output interface；
It is connected with the input interface, the output interface and the anode, for the voltage to the battery charging and discharging
Conversion module；
It is connected with input detection module, the output detection module and the voltage conversion circuit, according to the described first electricity
Whether state modulator charges to the battery, is controlled whether according to second electrical parameter to the load charging, according to described
First electrical parameter and second electrical parameter control the control module that the voltage transformation module is charged and discharged to the battery.
2. portable power source as claimed in claim 1, it is characterised in that the input detection module includes connecing with the input
Mouth, the anode connect with the control module, compare the voltage for accessing power supply and the cell voltage size and export
The voltage comparison unit of trigger signal；
The control module controls the voltage transformation module to be operated in and the battery is filled according to the effective trigger signal
Electricity condition.
3. portable power source as claimed in claim 2, it is characterised in that the voltage comparison unit includes first switch pipe, the
One electric capacity, the second electric capacity, first resistor and second resistance, wherein：
The control terminal of the first switch pipe connects the input interface, the control of the first switch pipe by first electric capacity
End is also grounded by the first resistor, and the input of the first switch pipe is connecing the battery just by the second resistance
Pole, the input of the first switch pipe also by second capacity earth, the input of the first switch pipe also with institute
State the triggering port connection of control module, the output head grounding of the first switch pipe.
4. portable power source as claimed in claim 1 or 2, it is characterised in that it is described input detection module also include with it is described defeated
Incoming interface is connected with the voltage transformation module, and the input interface is controlled to the voltage according to the voltage swing of access power supply
The Overvoltage protecting unit connected or ended between conversion module.
5. portable power source as claimed in claim 4, it is characterised in that the Overvoltage protecting unit includes an overvoltage protection core
Piece.
6. portable power source as claimed in claim 2, it is characterised in that the input detection module also includes voltage-regulator diode,
The anode and negative electrode of the voltage-regulator diode are connected with the positive source pin and ground negative electrode of the input interface respectively.
7. portable power source as claimed in claim 1 or 2, it is characterised in that it is described output detection module include second switch pipe,
Sampling resistor, current-limiting resistance and the 3rd electric capacity, wherein：
The input of the second switch pipe terminates the ground pin of the output interface, described in the control termination of the second switch pipe
The switch control terminal mouth of control module, the output of the second switch pipe terminate the first end of the sampling resistor and the current limliting
The first end of resistance, the second end ground connection of the sampling resistor, the second termination control module of the current-limiting resistance are adopted
Sample port.
8. the portable power source as described in claim 1,2 or 3, it is characterised in that the voltage transformation module includes DC-DC cores
Piece, inductor, the 4th electric capacity, the 5th electric capacity and 3rd resistor, wherein：
The input pin of the DC-DC chips connects the input interface, and output pin connects the output interface, and switched pins pass through
The inductor connects the anode, and anode pin connects the anode by the 3rd resistor, also passes through institute
The 4th capacity earth is stated, keying pin connects the controlling switch of DC-DC chips described in the control module output control；Described 5th
Electric capacity one terminates the anode, other end ground connection.
9. the portable power source as described in claim 1,2 or 3, it is characterised in that the control module includes single-chip microcomputer.
10. portable power source as claimed in claim 1, it is characterised in that the charge-discharge control circuit also includes battery protection
Whether module, the battery protection module are connected with the both positive and negative polarity of the battery, control it to turn on according to the battery electric quantity defeated
Go out loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710847642.9A CN107565642A (en) | 2017-09-19 | 2017-09-19 | Portable power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710847642.9A CN107565642A (en) | 2017-09-19 | 2017-09-19 | Portable power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107565642A true CN107565642A (en) | 2018-01-09 |
Family
ID=60981384
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710847642.9A Pending CN107565642A (en) | 2017-09-19 | 2017-09-19 | Portable power source |
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| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203218922U (en) * | 2013-03-25 | 2013-09-25 | 东莞龙升电子有限公司 | A movable power source |
| CN203326671U (en) * | 2013-07-10 | 2013-12-04 | 向智勇 | Control circuit for electronic cigarette case |
| CN103618353A (en) * | 2013-11-28 | 2014-03-05 | 深圳市劲力思特科技有限公司 | Battery monitoring circuit |
| US20140292278A1 (en) * | 2013-04-02 | 2014-10-02 | Wistron Corporation | Charging Circuit for Electronic Device and Related Charging Method |
| CN206341027U (en) * | 2017-01-10 | 2017-07-18 | 河北工程技术高等专科学校 | Street lamp and its electric supply installation |
| CN207530558U (en) * | 2017-09-19 | 2018-06-22 | 深圳市倍斯特科技股份有限公司 | Charge-discharge protection circuit and mobile power |
-
2017
- 2017-09-19 CN CN201710847642.9A patent/CN107565642A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203218922U (en) * | 2013-03-25 | 2013-09-25 | 东莞龙升电子有限公司 | A movable power source |
| US20140292278A1 (en) * | 2013-04-02 | 2014-10-02 | Wistron Corporation | Charging Circuit for Electronic Device and Related Charging Method |
| CN203326671U (en) * | 2013-07-10 | 2013-12-04 | 向智勇 | Control circuit for electronic cigarette case |
| CN103618353A (en) * | 2013-11-28 | 2014-03-05 | 深圳市劲力思特科技有限公司 | Battery monitoring circuit |
| CN206341027U (en) * | 2017-01-10 | 2017-07-18 | 河北工程技术高等专科学校 | Street lamp and its electric supply installation |
| CN207530558U (en) * | 2017-09-19 | 2018-06-22 | 深圳市倍斯特科技股份有限公司 | Charge-discharge protection circuit and mobile power |
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