CN207184087U - A kind of portable power source automatic recognition of load circuit - Google Patents
A kind of portable power source automatic recognition of load circuit Download PDFInfo
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- CN207184087U CN207184087U CN201720887355.6U CN201720887355U CN207184087U CN 207184087 U CN207184087 U CN 207184087U CN 201720887355 U CN201720887355 U CN 201720887355U CN 207184087 U CN207184087 U CN 207184087U
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Abstract
The utility model discloses a kind of portable power source automatic recognition of load circuit, including portable power source 5V output modules, output switching circuit, output identification circuit, MCU controllers, output interface；The output switching circuit electrically connects with portable power source 5V output modules, output identification circuit, MCU controllers, output interface respectively, and output identification circuit also electrically connects with MCU controllers and output interface；The output switching circuit includes metal-oxide-semiconductor Q2A and Q2B, NPN triode Q3, resistance R5, resistance R6；The output identification circuit includes PNP triode Q1, resistance R1, resistance R2, resistance R3, resistance R4, diode D1.When the utility model realizes portable power source output interface connection mobile phone or tablet device, without manual key, portable power source can be automatically opened up and export the function of being charged to equipment end, it is convenient for users to use.
Description
Technical field
Portable power source technical field is the utility model is related to, especially a kind of portable power source automatic recognition of load circuit.
Background technology
Portable power source (Mobile Power Pack, MPP), is also charger baby, traveling charger etc..It is a kind of collection power supply
With charge function in the portable charger of one, it can whenever and wherever possible charge, use to digital equipments such as mobile phone, tablet personal computers
It is convenient and swift.For portable power source, it has certain emergency function, and the feelings of electric power storage are unable in numerous digital product power supplys
Under condition, it can be powered by some devices, allow digital product to reach the effect of normal work.Largely moved above existing market
Power supply product need to open portable power source by button when connecting mobile phone or tablet device and export, it is impossible to as adapter,
Just charged at once to equipment end after connecting equipment.
Utility model content
Problem to be solved in the utility model is to provide a kind of portable power source automatic recognition of load circuit, when being electrically charged equipment
When being connected to output interface, portable power source can automatically open up output to the equipment charge that is electrically charged, it may not be necessary to press by
Equipment charge of the key can to access.
To achieve these goals, the utility model uses following technical scheme：
A kind of portable power source automatic recognition of load circuit, including portable power source 5V output modules, output switching circuit, output
Identification circuit, MCU controllers, output interface.
The output switching circuit respectively with portable power source 5V output modules, output identification circuit, MCU controllers, output
Interface electrically connects, and output identification circuit also electrically connects with MCU controllers and output interface.
The output switching circuit includes metal-oxide-semiconductor Q2A and Q2B, NPN triode Q3, resistance R5, resistance R6.
The S poles of the metal-oxide-semiconductor Q2A meet 5V, and metal-oxide-semiconductor Q2A D poles are connected with the S poles of resistance R5 one end and Q2B, MOS
Pipe Q2A G poles and Q2B G poles link together and are connected to one with the other end of NPN triode Q3 colelctor electrode and resistance R5
Rise, the base stage connection resistance R6 of NPN triode Q3 one end, NPN triode Q3 emitter stage connection earth terminal GND, electricity
The resistance R6 other end is connected for signal end OUT-EN and with MCU controllers.
The output identification circuit includes PNP triode Q1, resistance R1, resistance R2, resistance R3, resistance R4, diode D1.
One end connection PNP triode Q1 of resistance R1 emitter stage is simultaneously connected with the positive pole BAT+ of battery, and R1's is another
One end is connected with resistance R2 and diode D1 one end, resistance R2 other end connection PNP triode Q1 base stage, diode
D1 other end connection metal-oxide-semiconductor Q2B D poles, one end of output interface, the other end ground connection GND, the resistance R3 of output interface
One end connection PNP triode Q1 colelctor electrode, resistance R3 other end connection resistance R4 and signal end OUT-INT, the letter
Number end OUT-INT connection MCU controllers, the resistance R4 other end are grounded GND.
The metal-oxide-semiconductor Q2A and Q2B uses ME6913D.
The NPN triode Q3 uses 2N3904.
The PNP triode Q1 uses 2N3906.
The diode D1 uses BAT54WS.
Specifically, exported to realize that portable power source mouth connects mobile phone or portable power source is automatically opened up during tablet device to setting
The function of standby end charging, the utility model add output switching circuit in the output end of portable power source, export identification circuit,
MCU controllers.
Load is when being not inserted into, the T0 moment, and portable power source is under conditions of low-power consumption of sleeping, and OUT-EN is low level, metal-oxide-semiconductor
Q2A and Q2B are off, and diode D1 is not turned on, and A points are hanging, high level, PNP triode Q1 base current Ib=0,
Triode Q1 works in cut-off region, is off, and OUT-INT (B points) is connected to the earth by R4 resistance, is low level.
At the T1 moment, when output interface accesses the moment of mobile phone or tablet device, A points are changed into low level, and D1 is hindered by the equipment of access
Anti- to be conducting to the earth, for PNP triode Q1 by R2, D1 is connected to the earth, there is a base current, triode operation in saturation region,
Triode ON, OUT-INT (B points) level are changed into high level from low level, and MCU controllers detect B level points by low level
It is changed into high level, has recognized load access, controlled OUT-EN to export high level, portable power source 5V output modules at the T2 moment
5V is exported, meanwhile, NPN triode Q3 works in saturation region, and Q3 base stage is conducting to the earth, the conducting of Q2A and Q2BMOS pipes, output
5V power supplys charge to mobile phone or tablet device.
The utility model provides a kind of portable power source automatic recognition of load circuit, realizes portable power source output interface company
When catcher machine or tablet device, it is not necessary to depresses button, portable power source can be automatically opened up and export the work(to be charged to equipment end
Can, it is convenient for users to use..
Brief description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows principle schematic of the present utility model.
Fig. 2 shows time diagram of the present utility model.
Fig. 3 shows workflow schematic diagram of the present utility model.
Embodiment
In order that the utility model solve technical problem, use technical scheme, obtain technique effect it can be readily appreciated that
With reference to specific accompanying drawing, specific embodiment of the present utility model is described further.
As shown in figure 1, a kind of portable power source automatic recognition of load circuit, including portable power source 5V output modules, outputting cutting
Change circuit, output identification circuit, MCU controllers, output interface.
The output switching circuit respectively with portable power source 5V output modules, output identification circuit, MCU controllers, output
Interface electrically connects, and output identification circuit also electrically connects with MCU controllers and output interface.
The output switching circuit includes metal-oxide-semiconductor Q2A and Q2B, NPN triode Q3, resistance R5, resistance R6.
The S poles of the metal-oxide-semiconductor Q2A meet 5V, and metal-oxide-semiconductor Q2A D poles are connected with the S poles of resistance R5 one end and Q2B, metal-oxide-semiconductor
Q2A G poles and Q2B G poles link together and are connected to one with the other end of NPN triode Q3 colelctor electrode and resistance R5
Rise, the base stage connection resistance R6 of NPN triode Q3 one end, NPN triode Q3 emitter stage connection earth terminal GND, electricity
Hinder R6 the other end for signal end OUT-EN and with MCU controllers.
The output identification circuit includes PNP triode Q1, resistance R1, resistance R2, resistance R3, resistance R4, diode D1.
One end connection PNP triode Q1 of resistance R1 emitter stage is simultaneously connected with the positive pole BAT+ of battery, and R1's is another
One end is connected with resistance R2 and diode D1 one end, resistance R2 other end connection PNP triode Q1 base stage, diode
D1 other end connection metal-oxide-semiconductor Q2B D poles, one end of output interface, the other end ground connection GND, the resistance R3 of output interface
One end connection PNP triode Q1 colelctor electrode, resistance R3 other end connection resistance R4 and signal end OUT-INT, the letter
Number end OUT-INT connection MCU controllers, the resistance R4 other end are grounded GND.
The metal-oxide-semiconductor Q2A and Q2B uses ME6913D.
The NPN triode Q3 uses 2N3904.
The PNP triode Q1 uses 2N3906.
The diode D1 uses BAT54WS.
Specifically, exported to realize that portable power source mouth connects mobile phone or portable power source is automatically opened up during tablet device to setting
The function of standby end charging, the utility model add output switching circuit in the output end of portable power source, export identification circuit,
MCU controllers.
With reference to figure 2-3, when load is not inserted into, at the T0 moment, under conditions of low-power consumption of sleeping, OUT-EN is portable power source
Low level, metal-oxide-semiconductor Q2A and Q2B are off, and diode D1 is not turned on, and A points are hanging, high level, PNP triode Q1 bases
Electrode current Ib=0, triode Q1 work in cut-off region, are off, and OUT-INT (B points) is connected to greatly by R4 resistance
Ground, it is low level.At the T1 moment, when output interface accesses the moment of mobile phone or tablet device, A points are changed into low level, and D1 passes through
The design impedance of access is conducting to the earth, and for PNP triode Q1 by R2, D1 is connected to the earth, there is base current, triode work
Make in saturation region, triode ON, OUT-INT (B points) level is changed into high level from low level, and MCU controllers detect B points electricity
It is flat that high level is changed into from low level, load access has been recognized, has controlled OUT-EN to export high level, portable power source 5V at the T2 moment
Output module exports 5V, meanwhile, NPN triode Q3 works in saturation region, and Q3 base stage is conducting to the earth, Q2A and Q2BMOS pipes
Conducting, export 5V power supplys and charged to mobile phone or tablet device.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model discloses
Change or replacement, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should
It is defined by scope of the claims.
Claims (7)
- A kind of 1. portable power source automatic recognition of load circuit, it is characterised in that：Including portable power source 5V output modules, output switching Circuit, output identification circuit, MCU controllers, output interface；The output switching circuit exports mould with portable power source 5V respectively Block, output identification circuit, MCU controllers, output interface electrical connection, output identification circuit also with MCU controllers and output interface Electrical connection.
- A kind of 2. portable power source automatic recognition of load circuit according to claim 1, it is characterised in that：The output switching Circuit includes metal-oxide-semiconductor Q2A and Q2B, NPN triode Q3, resistance R5, resistance R6, and the S poles of the metal-oxide-semiconductor Q2A connect 5V, metal-oxide-semiconductor Q2A D poles are connected with the S poles of resistance R5 one end and Q2B, and metal-oxide-semiconductor Q2A G poles and Q2B G poles link together and and NPN Triode Q3 colelctor electrode and the resistance R5 other end link together, the base stage connection resistance R6's of the NPN triode Q3 One end, NPN triode Q3 emitter stage connection earth terminal GND, the resistance R6 other end are connected with MCU controllers.
- A kind of 3. portable power source automatic recognition of load circuit according to claim 1, it is characterised in that：The output identification Circuit includes PNP triode Q1, resistance R1, resistance R2, resistance R3, resistance R4, diode D1；One end connection of the resistance R1 PNP triode Q1 emitter stage is simultaneously connected with the positive pole of battery, and the R1 other end is connected with resistance R2 and diode D1 one end, Resistance R2 other end connection PNP triode Q1 base stage, diode D1 other end connection metal-oxide-semiconductor Q2B D poles, output connect One end of mouth, the other end ground connection GND, the resistance R3 of output interface one end connection PNP triode Q1 colelctor electrode, resistance R3 other end connection resistance R4 and MCU controller, resistance R4 other end ground connection GND.
- A kind of 4. portable power source automatic recognition of load circuit according to claim 2, it is characterised in that：The metal-oxide-semiconductor Q2A ME6913D is used with Q2B.
- A kind of 5. portable power source automatic recognition of load circuit according to claim 2, it is characterised in that：The poles of NPN tri- Pipe Q3 uses 2N3904.
- A kind of 6. portable power source automatic recognition of load circuit according to claim 3, it is characterised in that：The poles of PNP tri- Pipe Q1 uses 2N3906.
- A kind of 7. portable power source automatic recognition of load circuit according to claim 3, it is characterised in that：The diode D1 Using BAT54WS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720887355.6U CN207184087U (en) | 2017-07-20 | 2017-07-20 | A kind of portable power source automatic recognition of load circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720887355.6U CN207184087U (en) | 2017-07-20 | 2017-07-20 | A kind of portable power source automatic recognition of load circuit |
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| Publication Number | Publication Date |
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| CN207184087U true CN207184087U (en) | 2018-04-03 |
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| CN201720887355.6U Active CN207184087U (en) | 2017-07-20 | 2017-07-20 | A kind of portable power source automatic recognition of load circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557690A (en) * | 2018-11-28 | 2019-04-02 | 嘉捷科技（福清）有限公司 | Backlight module lights the method without push switch automatically |
-
2017
- 2017-07-20 CN CN201720887355.6U patent/CN207184087U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557690A (en) * | 2018-11-28 | 2019-04-02 | 嘉捷科技（福清）有限公司 | Backlight module lights the method without push switch automatically |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220907 Address after: 523000 No. 252, Zhangmutou section, Dongshen Road, Zhangmutou town, Dongguan City, Guangdong Province Patentee after: DONGGUAN DBK ENERGY TECHNOLOGY Co.,Ltd. Address before: 208-1, 308, 404-408, Building 3, No. 8, Qinghua Road, Zhucun, Fucheng Xincheng Community, Guanlan Street, Longhua New District, Shenzhen, Guangdong 518100, China Patentee before: SHENZHEN DBK ELECTRONICS Co.,Ltd. |
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| TR01 | Transfer of patent right |