CN204243853U - A kind of portable power source by USB interface conducting - Google Patents
A kind of portable power source by USB interface conducting Download PDFInfo
- Publication number
- CN204243853U CN204243853U CN201420842402.1U CN201420842402U CN204243853U CN 204243853 U CN204243853 U CN 204243853U CN 201420842402 U CN201420842402 U CN 201420842402U CN 204243853 U CN204243853 U CN 204243853U
- Authority
- CN
- China
- Prior art keywords
- power source
- usb
- portable power
- metal
- semiconductor
- Prior art date
- 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.)
- Active
Links
Abstract
The utility model relates to portable power source technical field, particularly relates to a kind of portable power source by USB interface conducting, comprises lithium battery, charge management circuit and output voltage change-over circuit.Charge management circuit and output voltage change-over circuit and lithium battery are connected in parallel, the output of output voltage change-over circuit is connected with USB accessory power outlet, the input of charge management circuit is connected with USB input socket, the metal shell ground connection of USB accessory power outlet.Also comprise automatic recognition of load circuit.Goal of the invention of the present utility model is to provide a kind of portable power source by USB interface conducting, the technical scheme adopting the utility model to provide realizes the effect of the automatic conducting charging of portable power source by the plug of USB interface, reduce portable power source while power consumption, also reduce the cost of manufacture of portable power source.
Description
Technical field
The utility model relates to portable power source technical field, particularly relates to a kind of portable power source by USB interface conducting.
Background technology
Portable power source (Mobile Power Pack, MPP), is also named " charger baby ", is a kind of portable charger integrating power supply and charge function, can charges whenever and wherever possible or standby power to digital equipments such as mobile phones.General by lithium cell as charge storage unit, convenient to use.Wherein the charging wire of portable power source often adopts USB joint, and current USB interface is divided into Four types: A type, Type B, Mini type and Micro type interface.
The portable power source at present with remained capacity is provided with MCU more, the cooperation of hardware and software is adopted to reach the effect of the identification to the load of inserting portable power source, but adopt the portable power source of MCU when not using, during himself power consumption height, and the not only Material Cost increase when producing, produce and testing complex, assembling takes time and effort, and after-sales service cost is high.
Utility model content
Goal of the invention of the present utility model is to provide a kind of portable power source by USB interface conducting, the technical scheme that employing the utility model provides is not when adopting MCU, the effect of the automatic conducting charging of portable power source is realized by the plug of USB interface, reduce portable power source while power consumption, also reduce the cost of manufacture of portable power source.
In order to reach foregoing invention object, the utility model provides a kind of portable power source by USB interface conducting, comprises lithium battery, charge management circuit and output voltage change-over circuit.Charge management circuit and output voltage change-over circuit and lithium battery are connected in parallel, the output of output voltage change-over circuit is connected with USB accessory power outlet, the input of charge management circuit is connected with USB input socket, the metal shell ground connection of USB accessory power outlet.
Also comprise automatic recognition of load circuit, automatic recognition of load circuit comprises metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q2.The G pole of metal-oxide-semiconductor Q1 is connected with the input of charge management circuit by resistance R1, S pole ground connection, and D pole is connected with the G pole of the metal shell of USB input socket, one end of resistance R2 and metal-oxide-semiconductor Q2 respectively.The D pole of metal-oxide-semiconductor Q2 is connected with the input of output voltage change-over circuit, S pole ground connection.The input of charge management circuit is held with the VCC of USB input socket and is connected.The other end of resistance R2 is connected with the positive pole of lithium battery.
Therefore, the utility model is provided with automatic recognition of load circuit in portable power source, this automatic recognition of load circuit can utilize between the screen of USB charging wire and the metal shell of charging wire two ends socket and export an on-off model, reach the effect for controlling charge management circuit, and then realize the effect of namely being undertaken by the plug conducting portable power source of charging wire charging without the need to arranging MCU.The utility model while power consumption, also reduces the cost of manufacture of portable power source at reduction portable power source.
Optionally, USB accessory power outlet is USBA socket, and USB input socket is Micro USB socket.The portable power source of this structure can be applicable to most of electronic product on the market, improves practicality of the present utility model.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below.Apparently, the accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the utility model embodiment circuit diagram;
Fig. 2 is A place enlarged drawing in the utility model Fig. 2;
Fig. 3 is the utility model embodiment USB charging wire circuit diagram.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.Obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
embodiment 1
As shown in the figure, present embodiment discloses a kind of portable power source by USB interface conducting, comprise lithium battery 10, charge management circuit 20 and output voltage change-over circuit 30.Charge management circuit 20 and output voltage change-over circuit 30 are connected in parallel with lithium battery 10, the output of output voltage change-over circuit 30 is connected with USBA accessory power outlet 40, the input of charge management circuit 20 is connected with the metal shell ground connection of Micro USB input socket 50, USBA accessory power outlet 40.
Also comprise automatic recognition of load circuit 60, automatic recognition of load circuit 60 comprises metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q2.The G pole 61 of metal-oxide-semiconductor Q1 is connected with the input of charge management circuit 20 by resistance R1, S pole 62 ground connection, and D pole 63 is connected with the G pole 64 of the metal shell of Micro USB input socket 50, one end of resistance R2 and metal-oxide-semiconductor Q2 respectively.The D pole 65 of metal-oxide-semiconductor Q2 is connected with the input of output voltage change-over circuit 30, S pole 66 ground connection.The input of charge management circuit 20 is held with the VCC of Micro USB input socket and is connected.The other end of resistance R2 is connected with the positive pole of lithium battery 10.
During use:
When the either end of USB charging wire 70 is transferred to, the G pole 64 of metal-oxide-semiconductor Q2 because there being the voltage added from R2 (more than megohm), thus makes Q2 conducting, and trigger output circuit is enable, opens load supplying.
When the two ends of USB charging wire 70 correspond to portable power source USBA accessory power outlet 40 and Micro USB input socket 50 inserts simultaneously, because the metal-back of two end connectors of USB charging wire 70 is electrically connected by metal screen layer, the G pole 64 of metal-oxide-semiconductor Q2 is by passing through the metal shell ground connection of the USBA accessory power outlet 40 of portable power source again after USB charging wire 70, at this moment metal-oxide-semiconductor Q2 ends, the output control circuit triggering charge management circuit 20 is closed, and cuts off load supplying.
When inserting the 70 pairs of portable power source chargings of USB charging wire, metal-oxide-semiconductor Q1 conducting, the level of the G pole 64 of metal-oxide-semiconductor Q2 is pulled to low level, and at this moment metal-oxide-semiconductor Q2 ends, and the output control circuit triggering charge management circuit 20 is closed, and cuts off load supplying.
The present embodiment is provided with automatic recognition of load circuit 60 in portable power source, this automatic recognition of load circuit 60 utilizes between the screen of USB charging wire 70 and the metal shell of charging wire two ends socket and exports an on-off model, reach the effect for controlling charge management circuit 20, undertaken judging the insertion of load or dial-out by the screen in USB charging wire 70, and then realize the effect of namely being undertaken by the plug conducting portable power source of charging wire charging without the need to arranging MCU.
Above-described execution mode, does not form the restriction to this technical scheme protection range.The amendment done within any spirit at above-mentioned execution mode and principle, equivalently to replace and improvement etc., within the protection range that all should be included in this technical scheme.
Claims (3)
1. the portable power source by USB interface conducting, comprise lithium battery, charge management circuit and output voltage change-over circuit, described charge management circuit and output voltage change-over circuit and described lithium battery are connected in parallel, the output of described output voltage change-over circuit is connected with USB accessory power outlet, the input of described charge management circuit is connected with USB input socket, it is characterized in that:
The metal shell ground connection of described USB accessory power outlet;
Also comprise automatic recognition of load circuit;
Described automatic recognition of load circuit comprises metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q2;
The G pole of described metal-oxide-semiconductor Q1 is connected with the input of described charge management circuit by resistance R1;
The S pole ground connection of described metal-oxide-semiconductor Q1;
The D pole of described metal-oxide-semiconductor Q1 is connected with the G pole of the metal shell of described USB input socket, one end of resistance R2 and metal-oxide-semiconductor Q2 respectively;
The D pole of described metal-oxide-semiconductor Q2 is connected with the input of described output voltage change-over circuit;
The S pole ground connection of described metal-oxide-semiconductor Q2;
The input of described charge management circuit is held with the VCC of described USB input socket and is connected;
The other end of described resistance R2 is connected with the positive pole of described lithium battery.
2. a kind of portable power source by USB interface conducting according to claim 1, is characterized in that:
Described USB accessory power outlet is USBA socket.
3. a kind of portable power source by USB interface conducting according to claim 2, is characterized in that:
Described USB input socket is Micro USB socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420842402.1U CN204243853U (en) | 2014-12-25 | 2014-12-25 | A kind of portable power source by USB interface conducting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420842402.1U CN204243853U (en) | 2014-12-25 | 2014-12-25 | A kind of portable power source by USB interface conducting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204243853U true CN204243853U (en) | 2015-04-01 |
Family
ID=52773298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420842402.1U Active CN204243853U (en) | 2014-12-25 | 2014-12-25 | A kind of portable power source by USB interface conducting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204243853U (en) |
-
2014
- 2014-12-25 CN CN201420842402.1U patent/CN204243853U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204407954U (en) | Multiinputoutput fills portable power source soon | |
| CN104410114B (en) | Mobile power supply | |
| CN203086213U (en) | Rapid charger and mobile power supply with the charger | |
| CN101322296A (en) | Accumulation energy type mobile charging adapter | |
| CN207474738U (en) | Charging data line with digital display function | |
| CN205122913U (en) | Multi -functional intelligent movement arranges and inserts | |
| CN204103576U (en) | Charger | |
| CN203522273U (en) | Portable solar mobile phone charger | |
| CN204089260U (en) | A kind of portable power source being connected shoot button function by bluetooth | |
| CN204156916U (en) | Charging cell protective sleeve | |
| CN203071611U (en) | Integrated mobile power supply | |
| CN204243853U (en) | A kind of portable power source by USB interface conducting | |
| CN205489616U (en) | Ultra -thin portable power source of solos charge -discharge sharing USB | |
| CN205377439U (en) | Mobile charging device | |
| CN201298570Y (en) | Rechargeable battery and charger for mobile telephone | |
| CN101325341B (en) | Mobile phone charger with USB plug | |
| CN204290388U (en) | A kind of mobile phone over-charge protective device | |
| CN202616364U (en) | Rechargeable battery component | |
| CN204258394U (en) | A kind of Split movable power supply | |
| CN206628824U (en) | A kind of anti-firing circuit and direct current charging connector | |
| CN203481875U (en) | Wireless microphone | |
| CN202205134U (en) | Plate computer | |
| CN205545421U (en) | Dual supply cell -phone | |
| CN205453196U (en) | Activation electricity charging circuit based on mobile phone batteries | |
| CN204376495U (en) | Electric bicycle charger baby |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |