CN201947030U - Emergent charge device of a mobile terminal - Google Patents
Emergent charge device of a mobile terminal Download PDFInfo
- Publication number
- CN201947030U CN201947030U CN2010205596704U CN201020559670U CN201947030U CN 201947030 U CN201947030 U CN 201947030U CN 2010205596704 U CN2010205596704 U CN 2010205596704U CN 201020559670 U CN201020559670 U CN 201020559670U CN 201947030 U CN201947030 U CN 201947030U
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- portable terminal
- charging
- charge cable
- charge
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Abstract
The utility model discloses an emergent charge device for mobile terminals including: a mobile terminal to be charged, a charge wire and a charge mobile terminal having a test circuit to test if the charge wire is plugged and charging the mobile terminal to be tested. When charging, both ends of the charge wire are connected with the charge ports of the charge mobile terminal and the mobile terminal to be charged. The utility model can realize that the in case of emergency is the portable terminal and charges, satisfies user's demand.
Description
Technical field
The utility model relates to the portable terminal charging technique, relates in particular to a kind of portable terminal emergent charging apparatus.
Background technology
Fast development along with mobile communication technology, portable terminal is being played the part of more and more important role in people's life, the function of portable terminal also from strength to strength, and is corresponding, power consumption of mobile terminals is also just increasing, and is also more and more higher to the requirement of its battery capacity.Therefore, people are enjoying the while easily that the multiple function of portable terminal is brought, and also the problem of being lacked by the battery stand-by time perplexs.When the electric weight of battery of mobile terminal exhausts or is not enough, the user can't get in touch with other people, especially working as the user is in emergency circumstances, and can't to find power supply be portable terminal when charging because of the user is in the open air, battery capacity of mobile terminal exhaust or not enough inconvenience of bringing for people's work and life shows especially more.
The utility model content
In view of this, main purpose of the present utility model is to provide a kind of portable terminal emergent charging apparatus, can be implemented in emergency circumstances to be the portable terminal charging, satisfies user's demand.
For achieving the above object, the technical solution of the utility model is achieved in that
The utility model provides a kind of portable terminal emergent charging apparatus, comprises portable terminal to be charged; This device also comprise charge cable and inner be provided with testing circuit that whether charge cable is inserted to detect, be the charging portable terminal of portable terminal charging to be charged;
During charging, described charge cable links to each other with the charging port of charging portable terminal and portable terminal to be charged respectively by the two ends port.
Wherein, described charge cable two ends port is same type or is two kinds of different types.
Wherein, described charge cable port type includes but not limited to Min-general-purpose serial bus USB and Micro-USB.
In the such scheme, described testing circuit is arranged between charging pin CHARGE and anode VBAT.
Wherein, described testing circuit is made up of analog switch and pull-up resistor.
Wherein, described testing circuit is made up of metal-oxide-semiconductor and pull-up resistor.
Wherein, also be provided with the booster circuit that the output voltage of charging portable terminal is adjusted to standard charging voltage on the described charge cable.
Wherein, described booster circuit is made up of VBAT module, energy storage inductor, rectification filtering module, control circuit, power switch and voltage output module.
Wherein, also be provided with indicator light on the shell of described booster circuit outer setting.
The portable terminal emergent charging apparatus that the utility model provides is made up of charge cable and the inner charging portable terminal that is provided with testing circuit; When described charging portable terminal detects the charge cable insertion, be portable terminal charging to be charged through charge cable; It is the path of portable terminal charging to be charged that described charge cable provides the charging portable terminal.When practical application, it is portable terminal charging to be charged that the utility model can utilize the voltage difference between two battery of mobile terminal, is implemented in the purpose of in emergency circumstances charging for portable terminal, satisfies user's user demand; Charge cable volume described in the utility model is little, is easy to carry.
In addition, the utility model also is provided with booster circuit on charge cable, the output voltage of charging portable terminal is adjusted to normal voltage after, be portable terminal charging to be charged, therefore can improve charge efficiency, user experience is better.
Description of drawings
Fig. 1 is the external structure schematic diagram of the utility model charge cable;
Fig. 2 (a) is the testing circuit structural representation that the utility model is made up of analog switch and pull-up resistor;
(b) be the testing circuit structural representation that the utility model is made up of metal-oxide-semiconductor and pull-up resistor;
Fig. 3 is provided with the external structure schematic diagram of the charge cable of booster circuit for the utility model;
Fig. 4 is the internal structure schematic diagram of the utility model booster circuit one embodiment.
Embodiment
The utility model proposes the charged portable terminal of a kind of battery and be the implementation of the portable terminal charging that battery electric quantity exhausts, hereinafter that described battery is charged portable terminal is called the charging portable terminal, the portable terminal that described battery electric quantity is exhausted is called portable terminal to be charged, basic thought of the present utility model is: charge cable is set, and in charging portable terminal inside testing circuit is set; When the charging portable terminal detects the charge cable insertion, be portable terminal charging to be charged through charge cable.
Wherein, described testing circuit can the combination by analog switch and pull-up resistor be realized or the combination by metal-oxide-semiconductor and pull-up resistor realizes; Described testing circuit is arranged between the charging pin CHARGE and anode VBAT of charging portable terminal charging port.
Further, also be provided with booster circuit on the charge cable described in the utility model, with the purpose that reaches fast, efficiently charges for portable terminal to be charged.
Below in conjunction with drawings and the specific embodiments the utility model is described in further detail.
The two ends port of the utility model charge cable is a same type, also can be two kinds of different types, and described port type includes but not limited to Min-USB (USB) and Micro-USB, so that match with the dissimilar charging port of portable terminal.During practical application, the two-port of charge cable is inserted respectively in the charging port of charging portable terminal and portable terminal to be charged.
Fig. 1 is the external structure schematic diagram of this charge cable, and two-port is divided into input port and output port, and described input port links to each other with the charging portable terminal, and described output port links to each other with portable terminal to be charged.Wherein, a pin ground connection of described input port, for example:, pin 2 ground connection can be set so if charging pin CHARGE is a pin 1; Described output port, the port that inserts portable terminal when charging with existing charge cable is identical.
When testing circuit is set, between charging portable terminal charge inside pin CHARGE and anode VBAT testing circuit is set, described testing circuit is made up of analog switch and pull-up resistor; Perhaps, form by metal-oxide-semiconductor and pull-up resistor.
During practical application, when charge cable is inserted the charging portable terminal, the inner testing circuit that is provided with of charging portable terminal detects this charge cable, for example: testing circuit is according to the current charge cable inserted, the current potential of pin 2 as indicated above is just judged, if pin 2 is an electronegative potential, promptly pin 2 ground connection determine that then the current charge cable of inserting is a charge cable of the present utility model; If pin 2 is earth-free, determine that then the current charge cable of inserting is not a charge cable described in the utility model, is the cable that charges normal for the charging portable terminal in the prior art.
When the charging portable terminal determines that institute's plug wire cable is a charge cable of the present utility model, oppositely connect the path that charges between pin CHARGE and anode VBAT by analog switch or metal-oxide-semiconductor, the anodal VBAT of charging battery of mobile terminal is connected to the charging port of portable terminal to be charged by charge cable, and utilizing two voltage differences between battery is portable terminal charging to be charged.
Here, described reverse connection is a normal situation for the charging of charging portable terminal in the relative prior art, and existing during for the charging of charging portable terminal, the path between charging pin CHARGE and anode VBAT is a forward conduction; In the utility model charging process, the performed operation of portable terminal to be charged is same as the prior art, and portable terminal internal circuit promptly to be charged and prior art are as broad as long.
Further, also booster circuit can be set on the utility model charge cable, can adopt existing DC-to-DC (DC-DC) booster circuit, when charge cable is inserted the charging portable terminal, the voltage signal that the charging portable terminal sends triggers booster circuit and starts working, the voltage transitions of charging battery of mobile terminal is become charging voltage, as 5V, to realize being fast portable terminal charging to be charged.
Wherein, described charging voltage is a normal voltage required when charging for portable terminal in the prior art, the output voltage of charging portable terminal is generally less than charging voltage during because of practical application, and for improving charge efficiency, the utility model is provided with booster circuit on described charge cable.
The device of the portable terminal emergent charging that the utility model provides by portable terminal to be charged, charge cable and inner be provided with testing circuit that whether charge cable is inserted to detect, form for the charging portable terminal of portable terminal charging to be charged; During charging, described charge cable links to each other with the charging port of charging portable terminal and portable terminal to be charged respectively by the two ends port.
Further, also be provided with the booster circuit that the output voltage of charging portable terminal is adjusted to standard charging voltage on the described charge cable.
Here, the port type of described charge cable includes but not limited to Min-USB and Micro-USB;
The testing circuit of described charging portable terminal is arranged between charging pin CHARGE and anode VBAT, and testing circuit is made up of analog switch and pull-up resistor; Perhaps, form by metal-oxide-semiconductor and pull-up resistor.
Fig. 2 (a) is the testing circuit structural representation that the utility model is made up of analog switch and pull-up resistor, shown in Fig. 2 (a), analog switch among pull-up resistor R, the figure in the square frame and the lead that is attached thereto are formed testing circuit, described capacitor C 1, C2, resistance R 1, R2, and metal-oxide-semiconductor is existing circuit part.Current analog switch state of living in is not for inserting the state of the utility model charge cable among Fig. 2 (a) in the charging portable terminal, the input B0 of analog switch meets anode VBAT, input B1 is unsettled, selecting side S meets 100K Ω pull-up resistor R, output terminals A meets charging pin CHARGE, and opposite side links to each other with input B1.When charge cable was inserted, the course of work of charging portable terminal testing circuit was as follows:
When charge cable of the present utility model is inserted, pin 2 ground connection because of charge cable, so selecting side S is an electronegative potential, this moment, the output terminals A of analog switch automatically switched to input B0, thereby anode VBAT is linked to each other with charging pin CHARGE through analog switch, path between reverse-conducting charging pin CHARGE and anode VBAT, charging portable terminal can be portable terminal charging to be charged.At this moment, not conducting of metal-oxide-semiconductor.
When charging normal for the charging portable terminal, to have charge cable now inserts, because of voltage VDD from master chip, therefore selecting side S is a high voltage, the output terminals A of analog switch then keeps linking to each other with input B1, this moment, metal-oxide-semiconductor was in conducting state, the path forward conduction between charging pin CHARGE and anode VBAT.At this moment, the charging portable terminal can be accepted the external world and charge normal, and this part is a prior art, and the related circuit structure is that operation principle no longer describes in detail.
Fig. 2 (b) is the testing circuit structural representation that the utility model is made up of metal-oxide-semiconductor and pull-up resistor, shown in Fig. 2 (b), pull-up resistor R, metal-oxide-semiconductor 2 and the lead that is attached thereto are formed testing circuit, described capacitor C 1, C2, resistance R 1, R2, and metal-oxide-semiconductor 1 is existing circuit part.With metal-oxide-semiconductor 2 is that the N-channel MOS pipe is an example, the anodal VBAT of E termination battery, the pull-up resistor R of B termination 100K Ω, C termination charging pin CHARGE.
The operation principle of the testing circuit among this testing circuit and Fig. 2 (a) is similar, when the utility model charge cable is not inserted, the N-channel MOS pipe B end is a high level, not conducting of metal-oxide-semiconductor 2, not conducting of backward channel between charging pin CHARGE and anode VBAT, when inserting the utility model charge cable, pin 2 ground connection because of charge cable, so N-channel MOS pipe B end current potential is dragged down, backward channel conducting between charging pin CHARGE and anode VBAT, charging portable terminal can be portable terminal charging to be charged.
Further, also be provided with booster circuit on the charge cable described in the utility model, can adopt existing DC-DC booster circuit.Fig. 3 is provided with the external structure schematic diagram of the charge cable of booster circuit for the utility model, booster circuit is positioned at the booster circuit enclosure, on the booster circuit shell indicator light can be set, when shown in charge cable when inserting charging portable terminal and portable terminal to be charged, indicator light is bright.
Fig. 4 is the internal structure schematic diagram of described booster circuit one embodiment, comprises VBAT module, energy storage inductor, rectification filtering module, control circuit, power switch and voltage output module.The output voltage of charging portable terminal enters from the input port of charge cable, from output port output, gives portable terminal charging to be charged after boosting.The function of each functional module is same as the prior art in the booster circuit shown in Figure 4, no longer describes in detail herein.
The above; it only is preferred embodiment of the present utility model; be not to be used to limit protection range of the present utility model, all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (9)
1. a portable terminal emergent charging apparatus comprises portable terminal to be charged; It is characterized in that, this device also comprise charge cable and inner be provided with testing circuit that whether charge cable is inserted to detect, be the charging portable terminal of portable terminal charging to be charged;
Described charge cable links to each other with the charging port of charging portable terminal and portable terminal to be charged respectively by the two ends port.
2. portable terminal emergent charging apparatus according to claim 1 is characterized in that, described charge cable two ends port is same type or is two kinds of different types.
3. portable terminal emergent charging apparatus according to claim 2 is characterized in that, described charge cable port type comprises Min-general-purpose serial bus USB and Micro-USB.
4. according to claim 1,2 or 3 described portable terminal emergent charging apparatus, it is characterized in that described testing circuit is arranged between charging pin CHARGE and anode VBAT.
5. according to claim 1,2 or 3 described portable terminal emergent charging apparatus, it is characterized in that described testing circuit is made up of analog switch and pull-up resistor R, described pull-up resistor R links to each other with the selecting side S of analog switch.
6. according to claim 1,2 or 3 described portable terminal emergent charging apparatus, it is characterized in that described testing circuit is made up of metal-oxide-semiconductor and pull-up resistor R, described pull-up resistor R links to each other with the B end of metal-oxide-semiconductor.
7. according to claim 1,2 or 3 described portable terminal emergent charging apparatus, it is characterized in that, also be provided with the booster circuit that the output voltage of charging portable terminal is adjusted to standard charging voltage on the described charge cable.
8. portable terminal emergent charging apparatus according to claim 7 is characterized in that, described booster circuit is made up of VBAT module, energy storage inductor, rectification filtering module, control circuit, power switch and voltage output module;
Wherein, the input of energy storage inductor links to each other with the output of VBAT module and the input of rectification filtering module respectively with output, the output of energy storage inductor and control circuit all links to each other with power switch, the input of control circuit links to each other with the output of VBAT module and rectification filtering module, and the input of voltage output module links to each other with the output of rectification filtering module.
9. portable terminal emergent charging apparatus according to claim 7 is characterized in that, also is provided with indicator light on the shell of described booster circuit outer setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205596704U CN201947030U (en) | 2010-10-12 | 2010-10-12 | Emergent charge device of a mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205596704U CN201947030U (en) | 2010-10-12 | 2010-10-12 | Emergent charge device of a mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201947030U true CN201947030U (en) | 2011-08-24 |
Family
ID=44474366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205596704U Expired - Lifetime CN201947030U (en) | 2010-10-12 | 2010-10-12 | Emergent charge device of a mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201947030U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184179A (en) * | 2013-05-28 | 2014-12-03 | 中兴通讯股份有限公司 | Battery control method and device, and wireless terminal |
-
2010
- 2010-10-12 CN CN2010205596704U patent/CN201947030U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184179A (en) * | 2013-05-28 | 2014-12-03 | 中兴通讯股份有限公司 | Battery control method and device, and wireless terminal |
| WO2014190831A1 (en) * | 2013-05-28 | 2014-12-04 | 中兴通讯股份有限公司 | Battery control method and device, terminal and computer storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110824 |