CN207475223U - A kind of mobile power - Google Patents
A kind of mobile power Download PDFInfo
- Publication number
- CN207475223U CN207475223U CN201721297756.2U CN201721297756U CN207475223U CN 207475223 U CN207475223 U CN 207475223U CN 201721297756 U CN201721297756 U CN 201721297756U CN 207475223 U CN207475223 U CN 207475223U
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- Prior art keywords
- resistance
- chip
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- connects
- capacitance
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model is related to a kind of mobile powers,Charge-discharge circuit built in mobile power and control circuit,Charge-discharge circuit is connect with control circuit,1 port of USB input sockets connects+5V power supplys through diode D1 in the charge-discharge circuit,1 port of USB input sockets is through resistance R1 connecting resistances R2 simultaneously,The 5 ports ground connection of USB input sockets,5 port connecting resistance R4 of USB input sockets simultaneously,Diode D1 connects the S2 ports of chip U4,Diode D1 is through P-channel enhancement type metal-oxide-semiconductor field effect transistor connecting resistance R4 simultaneously,The base stage of P-channel enhancement type metal-oxide-semiconductor field effect transistor meets the PB6 of chip U1 through resistance R19,Resistance R4 connects 4 ports of USB accessory power outlets,4 ports of USB accessory power outlets are through resistance R10 connecting resistances R5,Resistance R5 meets capacitance C1,Resistance R5 connects the PA5 ports of chip U1 simultaneously,2 and 3 ports of USB accessory power outlets while connecting resistance R5,The mobile power safety of the utility model design,It is stable,It is easy to operate.
Description
Technical field
The utility model is related to circuitry field more particularly to a kind of mobile powers.
Background technology
With popularizing for portable electronic product, mobile power obtains more and more extensive fortune in consumption electronic product
With.Mobile power generally uses polymer lithium battery core and DC converting mode.At present, domestic mobile power control circuit uses more
Analog circuit, there are it is complicated, reliability is low, efficiency is low and it is of high cost the deficiencies of.
Utility model content
The purpose of this utility model is to provide a kind of mobile power, to solve above-mentioned technical problem, to realize above-mentioned mesh
The utility model use following technical scheme：
A kind of mobile power, charge-discharge circuit and control circuit built in mobile power, charge-discharge circuit connect with control circuit
It connects.
On the basis of above-mentioned technical proposal, in the charge-discharge circuit 1 port of USB input sockets connect through diode D1+
5V power supplys, while 5 ports ground connection of 1 port of USB input sockets through resistance R1 connecting resistances R2, USB input socket, while USB
5 port connecting resistance R4 of input socket, diode D1 connects the S2 ports of chip U4, while diode D1 is through P-channel enhancement type MOS
The base stage of field-effect tube Q1 connecting resistance R4, P-channel enhancement type metal-oxide-semiconductor field effect transistor Q1 connect the PB6 of chip U1, resistance through resistance R19
R4 connects 4 ports of USB accessory power outlets, and 4 ports of USB accessory power outlets meet capacitance C1 through resistance R10 connecting resistance R5, resistance R5, together
When resistance R5 connect the PA5 ports of chip U1,1 end of 2 and 3 ports of USB accessory power outlets connecting resistance R5, USB accessory power outlet simultaneously
Mouth is grounded through resistance R12, and the S1 ports ground connection of chip U4, the G1 ports of chip U4 connect the PB5 ports of chip U1 through resistance R17,
The G2 ports of chip U4 connect the PB4 ports of chip U1 through resistance R18, and the D1-D2 ports of chip U4 connect control through inductance L1 simultaneously
VBAT+ ports in circuit, while inductance L1 is grounded respectively through capacitance C9 and battery BT1.
On the basis of above-mentioned technical proposal, the PA7 ports of the control circuit chips U1 meet switch K1, chip U1's
Vdd terminal mouth is through through diode D3 and D4 connecting resistance R13 and R15, resistance R13 meets capacitance C3 through capacitance C2, and resistance R15 connects electricity respectively
Hold C3, resistance R13 connects the PA5 ports of chip U1, while resistance R13 connects the PB0 ports of chip U1 through resistance R14, and resistance R15 connects
Ground, while resistance R15 connects the PB0 ports of chip U1 through resistance R16, the vdd terminal mouth of chip U1 connects capacitance C11 and capacitance simultaneously
The PA4 ports of C7, chip U1 connect the vdd terminal mouth of chip U2 through resistance R22, and resistance R22 connects the VSS ends of chip U2 through capacitance C4
Mouthful, while capacitance C4 is grounded, the CS ports connecting resistance R23 ground connection of chip U2, the OD ports of chip U2 connect the G2 ports of chip U3,
The OC ports of chip U2 connect the G1 ports of chip U3, and the S1 ports of chip U3 meet capacitance C5 through resistance R9 simultaneously, and resistance R9 connects core
The PA3 ports of piece U1.
On the basis of above-mentioned technical proposal, the chip U1 uses 8 high-performance reduced instructions of HT45F4M _ 16PIN types
The FLASH type microcontrollers of collection, chip U2 protect circuit using DW01A-G types high-precision lithium battery, and chip U3 is total to using 8205A types
Drain N-channel enhancement mode FET, and chip U4 uses MT4607 power diodes.
Mobile power of the mobile power based on the digital control charge and discharge of HT45F4M microcontrollers of the utility model design, leads to
A/D converter is crossed, using pulse width modulating technology adjusting pulsewidth, overcurrent is carried out using hardware and software technology and is protected with overvoltage/undervoltage
Shield makes output voltage stabilization enormously simplify circuit in 5 V, reduces circuit production cost, while this mobile power output electricity
Pressure is stablized, high conversion efficiency of discharging, the advantages of being provided simultaneously with low-carbon, energy conservation and environmental protection.
Description of the drawings
Fig. 1 is this electric operation control circuit figure.
Fig. 2 is charge-discharge circuit figure.
Specific embodiment
The utility model is further elaborated in the following with reference to the drawings and specific embodiments.
A kind of mobile power, charge-discharge circuit and control circuit built in mobile power, charge-discharge circuit connect with control circuit
It connects.
1 port of USB input sockets connects+5V power supplys, while USB input sockets through diode D1 in the charge-discharge circuit
5 ports ground connection of 1 port through resistance R1 connecting resistances R2, USB input socket, while 5 port connecting resistances of USB input sockets
R4, diode D1 connect the S2 ports of chip U4, while diode D1 is through P-channel enhancement type metal-oxide-semiconductor field effect transistor Q1 connecting resistances R4, P
The base stage of channel enhancement metal-oxide-semiconductor field effect transistor Q1 meets the PB6 of chip U1 through resistance R19, and resistance R4 connects 4 ends of USB accessory power outlets
Mouthful, 4 ports of USB accessory power outlets are through resistance R10 connecting resistance R5, and resistance R5 meets capacitance C1, while resistance R5 meets the PA5 of chip U1
Port, 2 and 3 ports of USB accessory power outlets while 1 port of connecting resistance R5, USB accessory power outlet are grounded through resistance R12, chip U4
S1 ports ground connection, the G1 ports of chip U4 connect the PB5 ports of chip U1 through resistance R17, and the G2 ports of chip U4 are through resistance R18
Connect the PB4 ports of chip U1, the D1-D2 ports of chip U4 are simultaneously through VBAT+ ports in inductance L1 connection control circuits, while inductance
L1 is grounded respectively through capacitance C9 and battery BT1.
The PA7 ports of the control circuit chips U1 meet switch K1, and the vdd terminal mouth of chip U1 is through respectively through diode D3
With D4 connecting resistances R13 and R15, resistance R13 meets capacitance C3 through capacitance C2, and resistance R15 meets capacitance C3, and resistance R13 connects chip U1's
PA5 ports, while resistance R13 connects the PB0 ports of chip U1, resistance R15 ground connection through resistance R14, while resistance R15 is through resistance
R16 connects the PB0 ports of chip U1, and the vdd terminal mouth of chip U1 meets capacitance C11 and capacitance C7 simultaneously, and the PA4 ports of chip U1 are through electricity
Resistance R22 connects the vdd terminal mouth of chip U2, and resistance R22 connects the VSS ports of chip U2 through capacitance C4, while capacitance C4 is grounded, chip U2
CS ports connecting resistance R23 ground connection, the OD ports of chip U2 connect the G2 ports of chip U3, and the OC ports of chip U2 connect chip U3's
G1 ports, the S1 ports of chip U3 meet capacitance C5 through resistance R9 simultaneously, and resistance R9 connects the PA3 ports of chip U1.
The chip U1 uses the FLASH type microcontrollers of 8 high-performance reduced instruction set computers of HT45F4M _ 16PIN types, chip
U2 protects circuit using DW01A-G types high-precision lithium battery, and chip U3 uses the enhanced field-effect of 8205A type common drain N-channels
Pipe, chip U4 use MT4607 power diodes.
Charge and discharge main circuit module can be divided by function is charged and discharged two processes.Charging uses Buck reduction voltage circuits,
Electric discharge is using Boost circuit.During charging, HT45F4M work is waken up, the N-MOS pipes of MT4607 is controlled to be connected, using 4.
7 u H inductance charge to lighium polymer battery core.Mobile power is operated in following charge mode:1. trickle charge, cell voltage
Less than 3. 0 V, 100 m A of charging current；2. constant-current charge, the V of 3. 0 V of cell voltage~4. 2, constant current 1. 5
A；3. constant-voltage charge, 4. 2 V of charging voltage, charging current stop charging when being less than 50 m A.During electric discharge, HT45F4M
The P-MOS pipes conducting of MT4607 is controlled, voltage transformation is carried out to main circuit, after the conducting of AQ3401 P-MOS pipes, with 5 V voltages
It powers to external loading；Mobile power is operated in following two kinds of discharge modes:1. constant voltage is discharged, 5 V of discharge voltage；2. when
When cell voltage is less than 3. 0 V, stop electric discharge, 2. 1 A of output terminal maximum output current.
The main function of control circuit is to control the conducting of N-MOS and P-MOS pipes (being integrated in MT4607) in main circuit
And shutdown.During charging, HT45F4M detects USB-DET as high potential automatically, detects cell voltage to judge charge mode.Microcontroller
Port OUTL exports PWM wave, and the N-MOS pipes of MT4607 is controlled to be connected, when external voltage is higher than 5. 5 V, then by hardware
PWM outputs are closed, and generate interruption.During electric discharge, HT45F4M ports OUT-EN keeps high level, and the P-MOS pipes of AQ3401 are led
It is logical;The P-MOS pipes conducting of the PWM wave control MT4607 of port OUTH outputs, if 5 V voltage outputs of control main circuit is negative
Carry mitigate, then output voltage rise speed its decline can be made slower by software adjustment PWM, so when can pass through
The OVP mechanism that HT45F4M is carried is exported by hardware positive closing PWM, and generates interruption.DW01A-G monitors battery core electricity in real time
Pressure when voltage drops to about 2. 3 V, judges that battery core whether in over-discharge state, makes 1 foot voltage become 0 V, battery core stopping is put
Electricity is simultaneously kept.During charging, when battery core voltage is increased to 4. 4 V, judgement battery core voltage is in overcharge voltage state, makes 3 feet electric
It presses as 0 V, the charge circuit of battery core is cut off, and stops charging.Although switching tube during overcharge in DW01 is closed, in it
The diode positive direction in portion is identical with the direction of discharge loop, therefore discharge loop can be with regular picture.
The above is the utility model preferred embodiment, for the ordinary skill in the art, according to this reality
With novel introduction, in the case of the principle for not departing from the utility model with spirit, the change that is carried out to embodiment is repaiied
Change, replace and modification is still fallen within the scope of protection of the utility model.
Claims (2)
1. a kind of mobile power, which is characterized in that charge-discharge circuit built in mobile power and control circuit, charge-discharge circuit and control
Circuit connection processed；
1 port of USB input sockets connects+5V power supplys, while the 1 of USB input sockets through diode D1 in the charge-discharge circuit
5 ports ground connection of the port through resistance R1 connecting resistances R2, USB input socket, while 5 port connecting resistance R4 of USB input sockets, two
Pole pipe D1 connects the S2 ports of chip U4, while diode D1, through P-channel enhancement type metal-oxide-semiconductor field effect transistor Q1 connecting resistance R4, P-channel increases
The base stage of strong type metal-oxide-semiconductor field effect transistor Q1 meets the PB6 of chip U1 through resistance R19, and resistance R4 meets 4 ports of USB accessory power outlets, USB
4 ports of accessory power outlet are through resistance R10 connecting resistance R5, and resistance R5 meets capacitance C1, while resistance R5 connects the PA5 ports of chip U1,
1 port of 2 and 3 ports of USB accessory power outlets connecting resistance R5, USB accessory power outlet simultaneously is grounded through resistance R12, the S1 of chip U4
Port is grounded, and the G1 ports of chip U4 connect the PB5 ports of chip U1 through resistance R17, and the G2 ports of chip U4 connect core through resistance R18
The PB4 ports of piece U1, the D1-D2 ports of chip U4 are simultaneously through VBAT+ ports in inductance L1 connection control circuits, while inductance L1 divides
It is not grounded through capacitance C9 and battery BT1；
The PA7 ports of the control circuit chips U1 meet switch K1, and the vdd terminal mouth of chip U1 is through respectively through diode D3 and D4
Connecting resistance R13 and R15, resistance R13 meet capacitance C3 through capacitance C2, and resistance R15 meets capacitance C3, and resistance R13 connects the PA5 ends of chip U1
Mouthful, while resistance R13 connects the PB0 ports of chip U1, resistance R15 ground connection through resistance R14, while resistance R15 connects core through resistance R16
The PB0 ports of piece U1, the vdd terminal mouth of chip U1 meet capacitance C11 and capacitance C7 simultaneously, and the PA4 ports of chip U1 connect through resistance R22
The vdd terminal mouth of chip U2, resistance R22 connects the VSS ports of chip U2 through capacitance C4, while capacitance C4 is grounded, the CS ends of chip U2
Mouth connecting resistance R23 ground connection, the OD ports of chip U2 connect the G2 ports of chip U3, and the OC ports of chip U2 connect the G1 ends of chip U3
Mouthful, the S1 ports of chip U3 meet capacitance C5 through resistance R9 simultaneously, and resistance R9 connects the PA3 ports of chip U1.
2. a kind of mobile power according to claim 1, which is characterized in that the chip U1 using HT45F4M _
The FLASH type microcontrollers of 8 high-performance reduced instruction set computers of 16PIN types, chip U2 are protected using DW01A-G types high-precision lithium battery
Circuit, chip U3 use 8205A type common drain N-channel enhancement mode FETs, and chip U4 uses MT4607 power diodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721297756.2U CN207475223U (en) | 2017-10-10 | 2017-10-10 | A kind of mobile power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721297756.2U CN207475223U (en) | 2017-10-10 | 2017-10-10 | A kind of mobile power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207475223U true CN207475223U (en) | 2018-06-08 |
Family
ID=62266528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721297756.2U Expired - Fee Related CN207475223U (en) | 2017-10-10 | 2017-10-10 | A kind of mobile power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207475223U (en) |
-
2017
- 2017-10-10 CN CN201721297756.2U patent/CN207475223U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180608 Termination date: 20191010 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |