CN203734340U - Compatible type mobile power supply - Google Patents
Compatible type mobile power supply Download PDFInfo
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- CN203734340U CN203734340U CN201420006706.4U CN201420006706U CN203734340U CN 203734340 U CN203734340 U CN 203734340U CN 201420006706 U CN201420006706 U CN 201420006706U CN 203734340 U CN203734340 U CN 203734340U
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- usb
- power supply
- module
- compatible
- identification resistance
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Abstract
The utility model discloses a compatible type mobile power supply. The compatible type mobile power supply comprises a battery connected between a charging management module and a DC-to-DC module; an output terminal of the DC-to-DC module is connected with a driving interface of a USB; a compatible circuit for selecting USB power supply modes is connected between the output terminal of the DC-to-DC module and the driving interface of the USB; and the compatible circuit is controlled by a control unit connected with the charging management module. The compatible type mobile power supply is capable of automatically identifying charging types of USB data interfaces of digital equipment and automatically switching charging modes, and is capable of compatibly identifying resistance charging and USB data interface short-circuited charging modes. The compatible type mobile power supply is wide in application range, and economical burden of users to purchase mobile power supplies cannot be increased. The digital equipment can be prevented from being damaged due to the fact that charging current of the mobile power supply is mismatching.
Description
Technical field
The utility model relates to electronic circuit, particularly a kind of compatible type portable power source.
Background technology
Portable power source on existing market, due to the classification of digital equipment and the differences of model such as the mobile phones using, the requirement difference of the charging voltage of the portable power source of USB to charging use, has the charging modes of USB port on identification resistance and these two kinds of mode logarithmic code equipment of usb data port short circuit to identify conventionally.In the time using portable power source to charge to digital equipments such as mobile phones, conventionally can only charge by the one in identification resistance or usb data port short circuit mode, certainly will cause so in use restricted of portable power source, cause the inconvenience of user in the time using portable power source charging, and will be for the digital product charging of different model or classification time, need use different chargers, increase user and buy the financial burden of portable power source.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of compatible type portable power source, automatically the type of identification number decoding apparatus usb data port charging automatically convert charging mode, the mode of compatible identification resistance charging simultaneously and the charging of usb data port short circuit, the scope of application of portable power source is wider, can not increase user and buy the financial burden of portable power source, prevent that the charging current of portable power source from not mating the damage that causes digital equipment.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of compatible type portable power source, comprise battery, the input of battery connects the control end of charge management module, the output of battery connects the input of DC-DC module, the output of DC-DC module connects the driving interface of USB, between the driving interface of DC-DC module output and USB, be connected with the compatible circuit of a selection USB supply power mode, described compatible circuit is controlled by a control unit, control unit also connects a charge management module, control unit control compatible circuit is selected USB supply power mode and is sent the required power supply data of USB to charge management module, pass through the voltage transitions value of DC-DC module by charge management module control battery.
Preferably, the driving interface of described USB includes and drives anodal and driving negative pole, USB includes power supply port in addition, described power supply port also includes power supply positive pole and power supply port negative pole, the driving positive pole of described USB is connected with the output of DC-DC module with driving negative pole, and USB power supply is anodal is connected compatible circuit with power supply negative pole.
Preferably, described compatible circuit includes a voltage detecting resistance, described voltage detecting resistance is connected between USB power supply negative pole and DC-DC module output, and described USB drives negative pole to be also connected to control unit, drives the voltage data of interface to transfer in control unit USB.
Preferably, described compatible circuit comprises a controlled transistor, the control end of described transistorized controlled end connection control unit, transistor voltage input connects the power supply negative pole of USB, transistor voltage output connects the power supply positive pole of USB, described compatible circuit also includes four identification resistance, the first identification resistance and the second identification resistance series connection, the tie point of the first identification resistance and the second identification circuit is connected to transistorized voltage output end, the 3rd identification resistance and the 4th identification resistance series connection, the tie point of the 3rd identification resistance and the 4th identification resistance is connected to transistorized voltage input end, the first identification resistance and the 3rd identification resistance are connected to the driving positive pole of USB, the second identification resistance is connected with the 4th identification resistance the driving negative pole that is connected to USB through voltage detecting resistance.
Preferably, described controlled transistor is a NPN triode, and transistorized controlled end is the base stage of NPN triode, and transistor voltage input is the collector electrode of NPN triode, and transistor voltage output is the emitter of NPN triode.
Preferably, described controlled transistor is a metal-oxide-semiconductor, the grid that transistorized controlled end is metal-oxide-semiconductor.
Adopt after technique scheme, the utlity model has following advantage:
Classification by control unit automatic decision institute linking number decoding apparatus USB port is also controlled the charging modes that is consistent with USB port charging modes of compatible circuit selective recognition resistance or short circuit, ensure charging normal of digital equipment, described portable power source is applicable to the digital equipment of dissimilar and different model, can not increase user and buy the financial burden of portable power source.
Brief description of the drawings
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
Fig. 1 is the utility model line schematic diagram.
Embodiment
As shown in Figure 1, a kind of compatible type portable power source, comprise battery, the input of battery connects the control end of charge management module, the output of battery connects the input of DC-DC module, the output of DC-DC module connects the driving interface of USB, between the driving interface of DC-DC module output and USB, be connected with the compatible circuit 1 of a selection USB supply power mode, described compatible circuit 1 is controlled by a control unit, control unit also connects a charge management module, control unit control compatible circuit 1 is selected USB supply power mode and is sent the required power supply data of USB to charge management module, pass through the voltage transitions value of DC-DC module by charge management module control battery.The driving interface of described USB includes and drives anodal and driving negative pole, USB includes power supply port in addition, described power supply port also includes power supply positive pole and power supply negative pole, the driving positive pole of described USB is connected with the output of DC-DC module with driving negative pole, and USB power supply is anodal is connected compatible circuit 1 with power supply negative pole.USB passes through to drive interface driver work, and powers by power supply port.In the present embodiment, comprise and detected the magnitude of voltage of USB power supply positive pole and power supply negative pole and detected value is transferred to the voltage detecting resistance R 5 in control unit by described compatible circuit 1, detect USB power supply port magnitude of voltage and be sent to control unit by voltage detecting resistance R 5, judge that by control unit whether the magnitude of voltage detecting matches with current charging modes, changes charging modes if do not meet by control unit control compatible circuit.The charging modes of compatible circuit 1 is mainly by having control unit sending controling instruction to charge management module, the voltage transitions value by charge management module control battery through DC-DC module, thus change the magnitude of voltage of charging.In the time that the magnitude of voltage detecting matches, compatible circuit keeps present mode constant, proceeds charging, and the control by control unit in the time detecting that magnitude of voltage does not mate changes charge mode automatically.Make the compatibility of portable power source strong, applied widely.Can be according to the charging voltage value of the difference change portable power source of digital equipment, guarantee digital equipment to match with charging voltage portable power source.
As the one optimization to the present embodiment, described compatible circuit 1 comprises a controlled transistor, the control end of described transistorized controlled end connection control unit, transistor voltage input connects the power supply negative pole of USB, transistor voltage output connects the power supply positive pole of USB, described compatible circuit 1 also includes four identification resistance, the first identification resistance R 1 and the second identification resistance R 2 are connected, the tie point of the first identification resistance R 1 and the second identification circuit is connected to transistorized voltage output end, the 3rd identification resistance R 3 and the 4th identification resistance R 4 are connected, the tie point of the 3rd identification resistance R 3 and the 4th identification resistance R 4 is connected to transistorized voltage input end, the first identification resistance R 1 and the 3rd identification resistance R 3 are connected to the driving positive pole of USB, the second identification resistance R 2 is connected with the 4th identification resistance R 4 the driving negative pole that is connected to USB through voltage detecting resistance R 5.In the time that control unit sends high/low level to transistorized controlled end turn-on transistor, power supply positive pole and the power supply negative pole of four identification resistance identification USB, be the power supply of USB power supply port by the pattern of identification resistance.In the time that control unit transmission control level makes transistor cut-off, USB power supply is anodal equates with power supply negative pole current potential, and will power positive pole and power supply negative pole short circuit, power by the USB of short circuit pattern logarithmic code equipment.
Embodiment 1:
Referring to Fig. 1, described controlled transistor is a NPN triode Q1, and transistorized controlled end is the base stage of NPN triode Q1, and transistor voltage input is the collector electrode of NPN triode Q1, and transistor voltage output is the emitter of NPN triode Q1.In the time that control unit sends high level, by the conducting of NPN triode, identify the charging modes of USB and charge by identification resistance mode.NPN triode cut-off in the time that control unit sends low level, USB power supply positive pole and power supply negative pole short circuit, thus arrive charge management module by control unit, change the supply power voltage of battery after DC-DC module by charge management module.Certainly described transistor can adopt PNP triode, can realize with being connected of collector electrode as long as exchange emitter, is not repeating at this.
Embodiment 2:
Described controlled transistor also can adopt metal-oxide-semiconductor, the grid that transistorized controlled end is metal-oxide-semiconductor.Principle and the triode of metal-oxide-semiconductor are basic identical, by the conducting of grid and the conversion of cut-off realization identification resistance and short circuit mode of control unit control metal-oxide-semiconductor, thereby reach according to the object of the dissimilar change Auto-matching supply power voltage of digital equipment.
Described portable power source charges by external direct current input interface as can be seen from Figure 1, in the time that portable power source electric weight is too low, cuts off discharge loop, and charge by direct current input interface by charge management module control.
Control unit described in the utility model can be a single-chip microcomputer, and cost is low, and function is complete.Described charge management module is one can be at the conventional charging management chip of having bought on the market, for example, by the SL1053 model charging management chip of Zhong Daan Science and Technology Ltd. of Shenzhen supply.
Except above preferred embodiment, the utility model also has other execution mode, those skilled in the art can make various changes and distortion according to the utility model, only otherwise depart from spirit of the present utility model, all should belong to the defined scope of the utility model claims.
Claims (6)
1. a compatible type portable power source, comprise battery, the input of battery connects the control end of charge management module, the output of battery connects the input of DC-DC module, the output of DC-DC module connects the driving interface of USB, it is characterized in that: the compatible circuit (1) that is connected with a selection USB supply power mode between the driving interface of DC-DC module output and USB, described compatible circuit (1) is controlled by a control unit, control unit also connects a charge management module, control unit control compatible circuit (1) is selected USB supply power mode and is sent the required power supply data of USB to charge management module, pass through the voltage transitions value of DC-DC module by charge management module control battery.
2. compatible type portable power source according to claim 1, it is characterized in that: the driving interface of described USB includes and drives anodal and driving negative pole, USB includes power supply port in addition, described power supply port also includes power supply positive pole and power supply port negative pole, the driving positive pole of described USB is connected with the output of DC-DC module with driving negative pole, and USB power supply is anodal is connected compatible circuit (1) with power supply negative pole.
3. compatible type portable power source according to claim 2, it is characterized in that: described compatible circuit (1) includes a voltage detecting resistance (R5), described voltage detecting resistance (R5) is connected between USB power supply negative pole and DC-DC module output, described USB drives negative pole to be also connected to control unit, drives the voltage data of interface to transfer in control unit USB.
4. compatible type portable power source according to claim 3, it is characterized in that: described compatible circuit (1) comprises a controlled transistor, the control end of described transistorized controlled end connection control unit, transistor voltage input connects the power supply negative pole of USB, transistor voltage output connects the power supply positive pole of USB, described compatible circuit (1) also includes four identification resistance, the first identification resistance (R1) and the second identification resistance (R2) series connection, the tie point of the first identification resistance (R1) and the second identification circuit is connected to transistorized voltage output end, the 3rd identification resistance (R3) and the 4th identification resistance (R4) series connection, the tie point of the 3rd identification resistance (R3) and the 4th identification resistance (R4) is connected to transistorized voltage input end, the first identification resistance (R1) and the 3rd identification resistance (R3) are connected to the driving positive pole of USB, the second identification resistance (R2) is connected with the 4th identification resistance (R4) the driving negative pole that is connected to USB through voltage detecting resistance (R5).
5. compatible type portable power source according to claim 4, it is characterized in that: described controlled transistor is a NPN triode (Q1), transistorized controlled end is the base stage of NPN triode (Q1), transistor voltage input is the collector electrode of NPN triode (Q1), and transistor voltage output is the emitter of NPN triode (Q1).
6. compatible type portable power source according to claim 4, is characterized in that: described controlled transistor is a metal-oxide-semiconductor, the grid that transistorized controlled end is metal-oxide-semiconductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420006706.4U CN203734340U (en) | 2014-01-03 | 2014-01-03 | Compatible type mobile power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420006706.4U CN203734340U (en) | 2014-01-03 | 2014-01-03 | Compatible type mobile power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203734340U true CN203734340U (en) | 2014-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420006706.4U Expired - Fee Related CN203734340U (en) | 2014-01-03 | 2014-01-03 | Compatible type mobile power supply |
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| Country | Link |
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| CN (1) | CN203734340U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104539026A (en) * | 2015-01-26 | 2015-04-22 | 联想(北京)有限公司 | Charging method and charging device. |
| CN105006853A (en) * | 2015-06-03 | 2015-10-28 | 广东欧珀移动通信有限公司 | Method of outputting charging current, and power amplifier |
| CN106786900A (en) * | 2016-12-26 | 2017-05-31 | 普联技术有限公司 | Terminal, equipment in the capacity expansion, charging method and charging method |
-
2014
- 2014-01-03 CN CN201420006706.4U patent/CN203734340U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104539026A (en) * | 2015-01-26 | 2015-04-22 | 联想(北京)有限公司 | Charging method and charging device. |
| CN105006853A (en) * | 2015-06-03 | 2015-10-28 | 广东欧珀移动通信有限公司 | Method of outputting charging current, and power amplifier |
| US10439416B2 (en) | 2015-06-03 | 2019-10-08 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method for outputting charging current according to displayed media and power amplifier |
| CN106786900A (en) * | 2016-12-26 | 2017-05-31 | 普联技术有限公司 | Terminal, equipment in the capacity expansion, charging method and charging method |
| CN106786900B (en) * | 2016-12-26 | 2019-06-04 | 普联技术有限公司 | Terminal, equipment in the capacity expansion, charging method and charging method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20190103 |