CN207677473U - A kind of mobile power - Google Patents
A kind of mobile power Download PDFInfo
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- CN207677473U CN207677473U CN201721840715.3U CN201721840715U CN207677473U CN 207677473 U CN207677473 U CN 207677473U CN 201721840715 U CN201721840715 U CN 201721840715U CN 207677473 U CN207677473 U CN 207677473U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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Abstract
The utility model is suitable for power technique fields, provides a kind of mobile power.The mobile power includes drive module, battery protection module, MCU main control modules, battery module, boost module and multiple charging modules；When a charging module connects electrical equipment, charging module feeds back charging voltage to MCU main control modules, when charging voltage is less than setting voltage, MCU master control module controls drive modules driving boost module boosts to the output voltage of battery module, so that charging module charges to electrical equipment according to the output voltage after boosting, when charging voltage is more than setting voltage, MCU control charging modules stop charging to electrical equipment；When at least two charging modules connect electrical equipment simultaneously, battery protection module detects total charging voltage, and when total charging voltage is more than predeterminated voltage limiting value, disconnects the circuit between battery module and boost module.The mobile power ensures charging equipment and mobile power safety while solving the problems, such as that charge efficiency is low.
Description
Technical field
The utility model belongs to power technique fields, more particularly to a kind of mobile power.
Background technology
In recent years, while the rapid development of portable electronic device, charging auxiliary facility corresponding thereto is same
Step development, such as mobile power.Currently, existing mobile power has multiple universal serial bus (Universal Serial
Bus, USB) interface, and charged simultaneously to multiple electrical equipments by multiple USB interfaces.
However, more mouthfuls of outputs of existing mobile power are all High-current outputs, output scheme can be divided into two kinds, when
Using by the way of in parallel, the electric current of each single port output is total current for more mouthfuls of outputs, such mode be easy so that electrical equipment with
Mobile power breaks down；Second is that exported at more mouthfuls per a linear current limliting chip is increased all the way, although such mode can be with
Current limit, and then realize the protection of electrical equipment and mobile power, but it is easy to cause mobile power fever, is reduced with this
Charge efficiency.
In conclusion there is the safety for being unable to ensure charging equipment and mobile power, or charging in existing mobile power
The low problem of efficiency.
Invention content
The purpose of this utility model is to provide a kind of mobile powers, it is intended to which existing movement exists in the prior art in solution
Power supply is unable to ensure the safety of charging equipment and mobile power or the problem that charge efficiency is low.
To achieve the above object, technical solution used by the utility model is：A kind of mobile power is used for multiple use
Electric equipment charges, and the mobile power includes drive module, battery protection module, MCU main control modules, battery module, boosting mould
Block and multiple charging modules；
The first input end of each charging module connects altogether, and is connect with the first output end of the MCU main control modules,
Second input terminal of each charging module connects altogether, and is connect with the first output end of the boost module, each described to fill
First output end of electric module connects altogether, and with the negative terminal of the current sampling port of the battery protection module, the battery module with
And the second output terminal connection of the boost module, the second output terminal of multiple charging modules and the MCU main control modules
Multiple voltage detecting input terminals connect one to one, the switch control terminal of multiple charging modules and the MCU master controls mould
The multiple switch signal output end of block connects one to one, and the control signal output of the MCU main control modules connects the drive
The enable signal output end of the control signal input of dynamic model block, the MCU main control modules connects the enabled of the drive module
First output end of signal input part, the drive module connects the first control terminal of the boost module, the drive module
Second output terminal connect the second control terminal of the boost module, the first input end of the boost module and the second input terminal
Connect respectively with the anode and cathode of the battery module, the positive and cathode of the battery module respectively with the battery protection
The first interface of module is connected with second interface；
When a charging module connects electrical equipment, the charging module is filled to MCU main control modules feedback
Piezoelectric voltage, when the charging voltage is less than setting voltage, drive module drives the liter described in the MCU master control module controls
Die block boosts to the output voltage of the battery module, so that the charging module is according to the output voltage pair after boosting
Electrical equipment charges, and when the charging voltage is more than setting voltage, the MCU, which controls the charging module, to be stopped setting to electricity consumption
Standby charging；
When at least two charging modules connect electrical equipment simultaneously, the battery protection module detects total charging electricity
Pressure, and when total charging voltage is more than predeterminated voltage limiting value, disconnect the battery module and the boost module it
Between circuit.
The advantageous effect of mobile power provided by the utility model is, compared with prior art, the shifting of the utility model
For dynamic power supply when a charging module connects electrical equipment, charging module feeds back charging voltage to MCU main control modules, when charging electricity
When pressure is less than setting voltage, MCU master control module controls drive modules drive boost module to carry out the output voltage of battery module
Boosting, so that charging module charges to electrical equipment according to the output voltage after boosting, when charging voltage is more than setting voltage,
MCU control charging modules stop charging to electrical equipment；When at least two charging modules connect electrical equipment simultaneously, battery is protected
Shield module detects total charging voltage, and when total charging voltage is more than predeterminated voltage limiting value, disconnects battery module and rises
Circuit between die block to ensure the safety of charging equipment and mobile power, and improves charge efficiency, and then solves existing
Have and is unable to ensure the safety of charging equipment and mobile power there are existing mobile power in technology or charge efficiency is low asks
Topic.
Description of the drawings
It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this practicality is new
Some embodiments of type for those of ordinary skill in the art without having to pay creative labor, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the modular structure schematic diagram for the mobile power that one embodiment of the utility model is provided；
Fig. 2 is the electrical block diagram for the mobile power that one embodiment of the utility model is provided；
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
In order to illustrate technical solution described in the utility model, illustrated below by specific embodiment.
Fig. 1 shows the modular structure for the mobile power that the utility model embodiment is provided, and for convenience of description, only shows
Go out part related to the present embodiment, details are as follows：
As shown in Figure 1, the mobile power that the utility model embodiment is provided should for charging to multiple electrical equipments
Mobile power includes drive module 300, battery protection module 500, MCU main control modules 200, battery module 600, boost module
400 and multiple charging modules 100.
Wherein, the first input end of each charging module 100 connects altogether, and connects with the first output end of MCU main control modules 200
It connects, the second input terminal of each charging module 100 connects altogether, and is connect with the first output end of boost module 400, each charged
First output end of module 100 connects altogether, and with the negative terminal of the current sampling port of institute battery protection module 500, battery module 600 with
And the second output terminal connection of boost module 400, the second output terminals of multiple charging modules 100 are more with MCU main control modules 200
A voltage detecting input terminal connects one to one, and the switch control terminals of multiple charging modules 100 is more with MCU main control modules 200
A switching signal output end connects one to one, the control signal output connection drive module 300 of MCU main control modules 200
Control signal input, the enable signal input terminal of the enable signal output end connection drive module 300 of MCU main control modules 200,
First control terminal of the first output end connection boost module 400 of drive module 300, the second output terminal of drive module 300 connect
Connect the second control terminal of boost module 400, the first input end of boost module 400 and the second input terminal respectively with battery module
600 anode is connected with cathode, the positive and cathode of battery module 600 respectively with the first interface of battery protection module 500 and
Second interface connects.
Specifically, when a charging module 100 connects electrical equipment, charging module 100 is anti-to MCU main control modules 200
Charging voltage is presented, when charging voltage is less than setting voltage, MCU main control modules 200 control drive module 300 and drive boost module
The output voltage of 400 pairs of battery modules 600 boosts so that charging module 100 according to the output voltage after boosting to electricity consumption
Equipment charge, when charging voltage is more than setting voltage, MCU main control modules 200, which control charging module 100, to be stopped to electrical equipment
Charging.
Specifically, when at least two charging modules 100 connect electrical equipment simultaneously, battery protection module 500 detects always
Charging voltage, and when total charging voltage is more than predeterminated voltage limiting value, disconnect battery module 600 and boost module 400
Between circuit.
It should be noted that in the utility model embodiment, setting voltage refers to single electrical equipment charging time shift
The max-thresholds of the permitted charging voltage of dynamic power supply；Predeterminated voltage limiting value refers to multiple electrical equipments while time shift of charging
The max-thresholds of the permitted total charging voltage of dynamic power supply.
In the present embodiment, when mobile power is to the charging of electrical equipment, the charging mould that is connect with the electrical equipment
Block feeds back charging voltage to MCU main control modules, when charging voltage is less than setting voltage, MCU master control module controls drive modules
Driving boost module boost to the output voltage of battery module so that charging module according to the output voltage after boosting to
Electric equipment charges, and when charging voltage is more than setting voltage, MCU control charging modules stop charging to electrical equipment, to protect
Demonstrate,prove the safety of charging equipment and mobile power.
In addition, when mobile power is to total two charging equipments charging, battery protection module detects total charging voltage,
And when total charging voltage is more than predeterminated voltage limiting value, the circuit between battery module and boost module is disconnected, to protect
Demonstrate,prove charging equipment and mobile power it is safe while, improve charge efficiency.
Further, as one preferred embodiment of the utility model, as shown in Fig. 2, the utility model embodiment is carried
The mobile power of confession further includes filter module 700, and the first end and second end of filter module 700 is separately connected boost module 400
The first output end and charging module 100 the second input terminal, be used to be filtered place to the voltage that boost module 400 exports
Reason.
Specifically, filter module 700 includes the second capacitance C2, third capacitance C3, the 4th capacitance C4, the 5th capacitance C5, the
Six capacitance C6, the 7th capacitance C7, the 8th capacitance C8, the 9th capacitance C9, the tenth capacitance C10, the 11st capacitance C11, the 12nd electricity
Hold C12 and the 13rd capacitance C13.
The first end of second capacitance C2, the first end of third capacitance C3, the first end of the 4th capacitance C4, the 5th capacitance C5's
First end, the first end of the 6th capacitance C6, the first end of the 7th capacitance C7, the first end of the 8th capacitance C8, the 9th capacitance C9
First end, the first end of the tenth capacitance C10, the first end of the 11st capacitance C11, the first end of the 12nd capacitance C12 and
The first end of 13 capacitance C13 meets the first end to form filter module 700, the second end of the second capacitance C2, third capacitance C3 altogether
Second end, the second end of the 4th capacitance C4, the second end of the 5th capacitance C5, the second end of the 6th capacitance C6, the 7th capacitance C7
Second end, the second end of the 8th capacitance C8, the second end of the 9th capacitance C9, the second end of the tenth capacitance C10, the 11st capacitance
The second end of the second end of C11, the second end of the 12nd capacitance C12 and the 13rd capacitance C13 connects to form filter module 700 altogether
Second end.
As shown in Fig. 2, the charging module 100 in the mobile power that the utility model embodiment is provided includes charging interface
Unit, first switch unit and first voltage detection unit.
Wherein, the first input end of charging interface unit is the first input end of charging module 100, charging interface unit
Second input terminal is the second input terminal of charging module 100, the output of the input terminal and charging interface unit of first switch unit
End connection, the switch control terminal of first switch unit are the switch control terminal of charging module 100, the output end of first switch unit
It is connect with the input terminal of first voltage detection unit, the first output end of first voltage detection unit is the of charging module 100
One output end, the second output terminal of first voltage detection unit are the second output terminal of charging module 100.
Specifically, when charging interface unit connects electrical equipment, charging module 100 is examined by first voltage detection unit
The charging voltage of electrical equipment is surveyed, and is fed back to MCU main control modules 200, MCU main control modules 200 are more than in charging voltage
When setting voltage, control first switch unit disconnects.
Further, it as one preferred embodiment of the utility model, is connect as shown in Fig. 2, charging interface unit includes USB
Mouth and the first diode.
Wherein, the anode of the first diode is the first input end of charging interface unit, and the first pin of USB interface is to fill
Second input terminal of electric interface unit, the 4th pin of USB interface and the cathode of the first diode connect to form charging interface list altogether
The output end of member.
It should be noted that in the utility model embodiment, which is USB2.0 interfaces.
Further, as one preferred embodiment of the utility model, as shown in Fig. 2, first switch unit includes first
The first input pin of switch chip Q1, first switch chip Q1 connect to form the defeated of first switch unit with the second input pin altogether
Enter end, first switch controlling switch and the second switch controlling switch of first switch chip Q1 connect to form first switch unit altogether
First output pin of switch control terminal, first switch chip Q1 connects to form the defeated of first switch unit with the second output pin altogether
Outlet.
It should be noted that the core of model 8205ASOT-23-6 can be used in the first switch chip Q1 in the present embodiment
Piece is realized.
Further, as one preferred embodiment of the utility model, as shown in Fig. 2, first voltage detection unit includes
First resistor R1, second resistance R2 and 3rd resistor R3, the first end of first resistor R1 connect altogether with the first end of second resistance R2
The input terminal of first voltage detection unit is formed, the second end of first resistor R1 is the first output of first voltage detection unit
End, the second end of second resistance R2 connect the second output to form first voltage detection unit with the first end of 3rd resistor R3 altogether
End, the second end of 3rd resistor R3 are connect with input power.
As shown in Fig. 2, the battery protection module 500 in the mobile power that the utility model embodiment is provided includes battery
Protection location and second switch unit.
Wherein, the first voltage output end of the first switch control terminal connection battery protection unit of second switch unit, the
The second voltage output end of the second switch control terminal connection battery protection unit of two switch units, the first of second switch unit
The current detecting end of output end and battery protection unit connects the current sampling port to form battery protection module 500, second switch altogether
The second output terminal of unit and the ground terminal of battery protection unit connect the second interface to form battery protection module 500 altogether, and battery is protected
The power end for protecting unit is the first interface of battery protection module 500.
Specifically, when at least two charging modules 100 connect electrical equipment simultaneously, the total electricity of battery protection unit detection
Stream to obtain total charging voltage according to total current, and when total charging voltage is more than predeterminated voltage limiting value, is opened to second
It closes unit and sends shutdown control signal, second switch unit disconnects battery module 600 and boost module according to shutdown control signal
Circuit between 400.
Further, as one preferred embodiment of the utility model, as shown in Fig. 2, battery protection unit includes battery
Protect chip U2, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6 and the first capacitance C1；The first end of 4th resistance R4
Ground connection, the second end of the 4th resistance connect the voltage to form the battery protection unit altogether with the first end of the 5th resistance
The second end of test side, the 5th resistance connects the voltage sense pin of the battery protection chip, battery protection chip U2
First voltage output pin be battery protection unit first voltage output end, battery protection chip U2 second voltage output
Pin is the second voltage output end of battery protection unit, and the first end and the first end of the 6th resistance R6 of the first capacitance C1 connect
The power pins of battery protection chip U2 are connect, the second end of the first capacitance C1 connects to be formed with the ground pin of battery protection chip U2 altogether
The ground terminal of battery protection unit, the second end of the 6th resistance R6 are the power end of battery protection unit.
It should be noted that the core of model DW01+SOT-23-6 can be used in the battery protection chip U2 in the present embodiment
Piece realizes that the first pin of the DW01+SOT-23-6 chips is the first voltage output pin of battery protection chip U2, the DW01
The second pin of+SOT-23-6 chips is the voltage sense pin of battery protection chip U2, the of the DW01+SOT-23-6 chips
Three pins are the second voltage output pin of battery protection chip U2, and the 5th pin of the DW01+SOT-23-6 chips is battery
It is the ground pin of battery protection chip U2 to protect the power pins of chip U2, the 6th pin of the DW01+SOT-23-6 chips.
Further, as one preferred embodiment of the utility model, as shown in Fig. 2, second switch unit includes second
Switch chip Q2 and multiple third switch chip Q3.
Wherein, the second switch control of the first switch controlling switch of second switch chip Q2 and multiple third switch chip Q3
Pin processed connects the first switch control terminal to form second switch unit altogether, the second switch controlling switch of second switch chip Q2 with
The first switch controlling switch of multiple third switch chip Q3 connects the first switch control terminal to form second switch unit altogether, and second
The first output pin of switch chip Q2 and the second output pin of multiple third switch chip Q3 connect to form second switch list altogether
First output end of member, the first output pin of the second output pin of second switch chip Q2 and multiple third switch chip Q3
The second output terminal to form second switch unit is connect altogether.
It should be noted that model can be used in the second switch chip Q2 and third switch chip Q3 in the present embodiment
The chip of 8205A SOT-23-6 is realized.
Further, as one preferred embodiment of the utility model, as shown in Fig. 2, drive module 300 is driving chip
The controlling switch of U1, driving chip U1 are the control signal input of drive module 300, and the enabled pin of driving chip U1 is to drive
The high level driving output pin of the enable signal input terminal of dynamic model block 300, driving chip U1 is the first defeated of drive module 300
Outlet, the low level driving output pin of driving chip U1 are the second output terminal of drive module 300.
It should be noted that the chip that model PD2105 MSOP10 can be used in the driving chip U1 in the present embodiment is real
Existing, the 8th pin of the PD2105 MSOP10 chips is driving chip U1 controlling switch, the of the PD2105 MSOP10 chips
Seven pins are the enabled pin of driving chip U1, and the height that the third pin of the PD2105 MSOP10 chips is driving chip U1 is electric
Flat driving output pin, the low level that the tenth pin of the PD2105 MSOP10 chips is driving chip U1 drive output pin.
Further, as one preferred embodiment of the utility model, as shown in Fig. 2, MCU main control modules 200 include MCU
The first output pin of main control chip U3, MCU main control chip U3 is the first output end of MCU main control modules 200, MCU master control cores
The control signal output pin of piece U3 is the control signal output of MCU main control modules 200, the enabled letter of MCU main control chips U3
Number output pin is the enable signal output end of MCU main control modules 200, and multiple voltage sense pins of MCU main control chips U3 are
The multiple switch signal pins of multiple voltage detecting input terminals of MCU main control modules 200, MCU main control chips U3 are MCU master control moulds
The multiple switch signal output end of block 200.
It should be noted that the chip that model ANY2802 can be used in the MCU main control chips U3 in the present embodiment is realized,
4th pin of the ANY2802 chips is the first output pin, and the 5th pin of the ANY2802 chips, the 6th pin, the 7th draw
Foot and the 9th pin are respectively first switch signal pins, second switch signal pins, third switching signal pin and the 4th
Switching signal pin, the tenth pin of ANY2802 chips signal output pin in order to control, the 11st of the ANY2802 chips the
Pin, the 12nd pin, the 13rd pin and the 14th pin are respectively that first voltage detects pin, second voltage detection is drawn
20th pin of foot, tertiary voltage detection pin and the 4th voltage sense pin, the ANY2802 chips is that enable signal is defeated
Go out pin.
Further, as one preferred embodiment of the utility model, as shown in Fig. 2, the boost module in mobile power
400 include inductance L, the 7th resistance R7, the 8th resistance R8, the 14th capacitance, the first boost chip Q4 and the second boost chip
Q5；
The first pin, second pin and the third pin of first boost chip Q4 connects altogether to be connect with the first end of inductance L afterwards,
The second end of inductance L and the first end of capacitance C14 meet the first input end to form boost module 400, the first boost chip Q4 altogether
The 5th pin, the 6th pin, the 7th pin and the 8th pin connect the first output end to form boost module 400 altogether, first liter
The 4th pin of pressure chip Q4 is connect with the first end of the 7th resistance R7, and the second end of the 7th resistance R7 is boost module 400
First control terminal, the first pin, second pin, the third pin of the second boost chip Q5 connect to form the of boost module 400 altogether
Two output ends, the 5th pin, the 6th pin, the 7th pin and the 8th pin of the second boost chip Q5 and the of capacitance C14
Two ends connect the second input end to form boost module 400, the 4th pin of the second boost chip Q5 and the of the 8th resistance R8 altogether
One end connects, and the second end of the 8th resistance R8 is the second control terminal of boost module 400.
The operation principle of the mobile power of the utility model is illustrated by taking circuit shown in Fig. 2 as an example below, is described in detail
It is as follows：
As shown in Fig. 2, after an electrical equipment and any one USB interface are connected, for example, when an electrical equipment with
USB1 interfaces are connected, and current path is formed between USB1 interfaces and first switch chip and current sense resistor, and at this time first
Resistance R1 is detected the charging current of electrical equipment, to obtain charging voltage according to electric current, and to the of ANY2802 chips
One voltage sense pin USB-I1 exports charging voltage；The charging voltage is compared by ANY2802 chips with setting voltage, and
When charging voltage is less than setting voltage, the control signal output pin PWM-P and enable signal output pin of ANY2802 chips
EN is respectively to the controlling switch IN of PD2105 MSOP10 chips and enabled pin EN outputs control signal and enable signal, with this
Control high level driving output pin HO and the low level driving output pin LO output levels control of PD2105 MSOP10 chips
Signal, to drive AON7544DFN3.0x3.0EP chip operations so that AON7544DFN3.0x3.0EP chips are to battery
Output voltage boosts, and output is to USB1 interfaces after the filtered module of the output voltage after boosting 700 is filtered
To charge to electrical equipment.
In addition, when ANY2802 chips relatively show that charging voltage is more than setting voltage, the first of ANY2802 chips is defeated
The switch control of the 8205A SOT-23-6 chips gone out in pin USB-OUT1 the output phase inductive charging voltages to charging module 100 is drawn
Foot stops charging to electrical equipment to control corresponding USB1 interfaces.
Further, after at least two electrical equipments are connected with USB simultaneously, such as four USB interfaces are respectively connected with use
When electric equipment, corresponding first resistor R1, second resistance R2 and 3rd resistor R3 are electric to the charging of corresponding electrical equipment at this time
Stream is detected, and to obtain corresponding charging voltage according to corresponding electric current, and is drawn to the detection of the first voltage of ANY2802 chips
Foot USB-I1, second voltage detection pin USB-I2, tertiary voltage detection pin USB-I3 and the 4th voltage sense pin
Corresponding voltage sense pin exports corresponding charging voltage in USB-I4, while the 4th resistance R4 and the 5th resistance R5 are to electricity consumption
The total charging current of equipment is detected, to obtain total charging voltage according to total electric current, and total charging voltage is anti-
It feeds ANY2802 chips.
After ANY2802 chips receive total charging voltage, ANY2802 chips are electric with setting by total charging voltage
Pressure limiting value is compared.When the comparison result of ANY2802 chips is that charging voltage is less than setting voltage limit,
The control signal output pin PWM-P and enable signal output pin EN of ANY2802 chips are respectively to PD2105 MSOP10 chips
Controlling switch IN and enabled pin EN export control signal and enable signal respectively, PD2105 MSOP10 chips are controlled with this
High level driving output pin HO and low level driving output pin LO output levels control signal, to drive
AON7544DFN3.0x3.0EP chip operations so that AON7544DFN3.0x3.0EP chips rise the output voltage of battery
Pressure, after the filtered module of output voltage after boosting 700 is filtered output be interfaced to USB4 interfaces to USB1, with logical
It crosses USB1 and is interfaced to USB4 interfaces to electrical equipment charging.
And when the comparison result of ANY2802 chips is that total charging voltage is more than setting voltage limit, the 4th resistance
R4 and the 5th resistance R5 feed back total charging voltage, DW01+SOT- to the voltage sense pin CS of DW01+SOT-23-6 chips
The second switch of 8205A SOT-23-6 chips of the first voltage output pin OC of 23-6 chips into battery protection module 500
Controlling switch and the first switch controlling switch of 4 8205A SOT-23-6 chips send shutdown control signal, DW01+SOT-
First switch controlling switch and 4 8205As of the second voltage output pin OD of 23-6 chips to 8205A SOT-23-6 chips
The second switch controlling switch of SOT-23-6 chips sends shutdown control signal, and 8205A SOT-23-6 chips are controlled according to shutdown
Signal disconnects the circuit between battery and AON7544DFN3.0x3.0EP chips.
In the present invention, mobile power includes drive module, battery protection module, MCU main control modules, battery mould
Block, boost module and multiple charging modules, when charging module connects electrical equipment, charging module is to MCU master control moulds
Block feeds back charging voltage, and when charging voltage is less than setting voltage, MCU master control module controls drive modules drive boost module pair
The output voltage of battery module boosts, so that charging module charges to electrical equipment according to the output voltage after boosting, when
When charging voltage is more than setting voltage, MCU master control module controls charging modules stop charging to electrical equipment；It fills when at least two
When electric module connects electrical equipment simultaneously, battery protection module detects total charging voltage, and is more than pre- in total charging voltage
If when voltage limit, disconnecting the circuit between battery module and boost module, it is intended to which solution exists in the prior art existing
Mobile power is unable to ensure the safety of charging equipment and mobile power or the problem that charge efficiency is low.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is confined to these explanations.For the ordinary skill of the utility model technical field
For personnel, make several equivalent substitute or obvious modifications without departing from the concept of the premise utility, and performance or
Purposes is identical, all shall be regarded as belonging to the utility model scope of patent protection determined by the appended claims.
Claims (9)
1. a kind of mobile power, for charging to multiple electrical equipments, which is characterized in that the mobile power includes driving mould
Block, battery protection module, MCU main control modules, battery module, boost module and multiple charging modules；
The first input end of each charging module connects altogether, and is connect with the first output end of the MCU main control modules, each
Second input terminal of the charging module connects altogether, and is connect with the first output end of the boost module, each charging mould
First output end of block connects altogether, and with the current sampling port of the battery protection module, the negative terminal of the battery module and institute
The second output terminal connection of boost module is stated, the second output terminal of multiple charging modules is more with the MCU main control modules
A voltage detecting input terminal connects one to one, the switch control terminal of multiple charging modules and the MCU main control modules
Multiple switch signal output end connects one to one, and the control signal output of the MCU main control modules connects the driving mould
The enable signal output end of the control signal input of block, the MCU main control modules connects the enable signal of the drive module
Input terminal, the first output end of the drive module connect the first control terminal of the boost module, and the of the drive module
Two output ends connect the second control terminal of the boost module, the first input end of the boost module and the second input terminal difference
Connect with the anode and cathode of the battery module, the positive and cathode of the battery module respectively with the battery protection module
First interface connected with second interface；
When a charging module connects electrical equipment, the charging module feeds back charging electricity to the MCU main control modules
Pressure, when the charging voltage is less than setting voltage, drive module drives the boosting mould described in the MCU master control module controls
Block boosts to the output voltage of the battery module so that the charging module according to the output voltage after boosting to electricity consumption
Equipment charge, when the charging voltage is more than setting voltage, charging module described in the MCU master control module controls stop to
Electric equipment charges；
When at least two charging modules connect electrical equipment simultaneously, the battery protection module detects total charging voltage, and
When total charging voltage is more than predeterminated voltage limiting value, returning between the battery module and the boost module is disconnected
Road.
2. mobile power as described in claim 1, which is characterized in that the charging module includes charging interface unit, first
Switch unit and first voltage detection unit；
The first input end of the charging interface unit is the first input end of the charging module, the charging interface unit
Second input terminal is the second input terminal of the charging module, the input terminal of the first switch unit and the charging interface list
The output end connection of member, the switch control terminal of the first switch unit are the switch control terminal of the charging module, described the
The output end of one switch unit is connect with the input terminal of the first voltage detection unit, and the of the first voltage detection unit
One output end is the first output end of the charging module, and the second output terminal of the first voltage detection unit is the charging
The second output terminal of module；
When the charging interface unit connects electrical equipment, the charging module is detected by the first voltage detection unit
The charging voltage of the electrical equipment, and fed back to the MCU main control modules, the MCU main control modules are in the charging
When voltage is more than setting voltage, controls the first switch unit and disconnect.
3. mobile power as claimed in claim 2, which is characterized in that the first switch unit includes first switch chip,
The first input pin and the second input pin of the first switch chip connect the input terminal to form the first switch unit altogether,
The first switch controlling switch of the first switch chip connects to form the first switch unit altogether with second switch controlling switch
Switch control terminal, the first output pin and the second output pin of the first switch chip connect to form the first switch altogether
The output end of unit.
4. mobile power as claimed in claim 2, which is characterized in that the first voltage detection unit include first resistor,
Second resistance and 3rd resistor, the first end of the first resistor and the first end of the second resistance connect to form described first altogether
The input terminal of voltage detection unit, the second end of the first resistor are the first output end of the first voltage detection unit,
The second end of the second resistance and the first end of the 3rd resistor connect to form the second of the first voltage detection unit altogether
The second end of output end, the 3rd resistor is connect with input power.
5. mobile power as described in claim 1, which is characterized in that the battery protection module include battery protection unit with
Second switch unit；
The first switch control terminal of the second switch unit connects the first voltage output end of the battery protection unit, described
The second switch control terminal of second switch unit connects the second voltage output end of the battery protection unit, the second switch
First output end of unit connects the electric current to form the battery protection module altogether with the current detecting end of the battery protection unit
Sampling end, the second output terminal of the second switch unit connect to form the battery guarantor with the ground terminal of the battery protection unit altogether
The second interface of module is protected, the power end of the battery protection unit is the first interface of the battery protection module；
When at least two charging modules connect electrical equipment simultaneously, the battery protection unit detects total current, with according to institute
It states total current and obtains total charging voltage, and when total charging voltage is more than the predeterminated voltage limiting value, to
The second switch unit sends shutdown control signal, and the second switch unit is controlled according to the shutdown described in signal disconnection
Circuit between battery module and the boost module.
6. mobile power as claimed in claim 5, which is characterized in that the battery protection unit include battery protection chip,
4th resistance, the 5th resistance, the 6th resistance and the first capacitance；
The first end of 4th resistance is grounded, and the second end of the 4th resistance connects shape altogether with the first end of the 5th resistance
At the voltage detecting end of the battery protection unit, the second end of the 5th resistance connects the voltage of the battery protection chip
Pin is detected, the first voltage output pin of the battery protection chip is the first voltage output of the battery protection unit
End, the second voltage output pin of the battery protection chip is the second voltage output end of the battery protection unit, described
The first end of the first end of first capacitance and the 6th resistance is all connected with the power pins of the battery protection chip, and described the
The ground pin of the second end of one capacitance and the battery protection chip connects the ground terminal to form the battery protection unit altogether, and described the
The second end of six resistance is the power end of the battery protection unit.
7. mobile power as claimed in claim 5, which is characterized in that the second switch unit include second switch chip with
Multiple third switch chips；
The first switch controlling switch of the second switch chip and the second switch control of multiple third switch chips are drawn
Foot connects the first switch control terminal to form the second switch unit, the second switch controlling switch of the second switch chip altogether
Connect the first switch control to form the second switch unit altogether with the first switch controlling switch of multiple third switch chips
End processed, the first output pin of the second switch chip and the second output pin of multiple third switch chips connect shape altogether
At the first output end of the second switch unit, the second output pin of the second switch chip is opened with multiple thirds
The first output pin for closing chip connects the second output terminal to form the second switch unit altogether.
8. mobile power as described in claim 1, which is characterized in that drive module is driving chip, the driving chip
Controlling switch is the control signal input of the drive module, and the enabled pin of the driving chip is the drive module
Enable signal input terminal, the high level driving output pin of the driving chip are the first output end of the drive module, institute
The low level driving output pin for stating driving chip is the second output terminal of the drive module.
9. mobile power as described in claim 1, which is characterized in that the MCU main control modules include MCU main control chips, institute
The first output pin for stating MCU main control chips is the first output end of the MCU main control modules, the control of the MCU main control chips
Signal output pin processed is the control signal output of the MCU main control modules, the enable signal output of the MCU main control chips
Pin is the enable signal output end of the MCU main control modules, and multiple voltage sense pins of the MCU main control chips are described
The multiple switch signal pins of multiple voltage detecting input terminals of MCU main control modules, the MCU main control chips are the MCU master
Control the multiple switch signal output end of module.
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| CN201721840715.3U CN207677473U (en) | 2017-12-22 | 2017-12-22 | A kind of mobile power |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111130222A (en) * | 2018-10-30 | 2020-05-08 | 北京小米移动软件有限公司 | Wireless charging power supply circuit and method and electronic equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111130222A (en) * | 2018-10-30 | 2020-05-08 | 北京小米移动软件有限公司 | Wireless charging power supply circuit and method and electronic equipment |
| CN111130222B (en) * | 2018-10-30 | 2022-04-01 | 北京小米移动软件有限公司 | Wireless charging power supply circuit and method and electronic equipment |
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