CN204809904U - Mobile power source - Google Patents
Mobile power source Download PDFInfo
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- CN204809904U CN204809904U CN201520373420.4U CN201520373420U CN204809904U CN 204809904 U CN204809904 U CN 204809904U CN 201520373420 U CN201520373420 U CN 201520373420U CN 204809904 U CN204809904 U CN 204809904U
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Abstract
The utility model discloses a mobile power source relates to mobile terminal technical field, can provide different charging voltage and charge for mobile terminal to make mobile power source can use higher charging voltage to charge as mobile terminal, with the improvement speed of charging. The utility model discloses a main technical scheme does: a mobile power source, includes: mobile power source input, battery, with charging chip, voltage conversion circuit and mobile power source output that mobile power source input and battery are connected, wherein, voltage conversion circuit is output voltage adjustable voltage conversion circuit, mobile power source is still including little the control unit, and little the control unit connects in mobile power source output and voltage conversion circuit, and little the control unit is used for when obtaining the terminal through the mobile power source output when regulating and control the signal, and control voltage conversion circuit's output voltage is from charging voltage rising to the 2nd charging voltage, and the 2nd charging voltage is greater than a charging voltage. The utility model discloses mainly used charges for mobile terminal.
Description
Technical field
The utility model relates to technical field of mobile terminals, particularly relates to a kind of portable power source.
Background technology
The mobile terminals such as mobile phone need to use power supply adaptor or portable power source to charge, common power supply adaptor can only be that mobile terminal charges by lower charging voltage usually, the charging voltage of 5V is such as used to charge for mobile terminal, this charging modes is slower, therefore charging quickly source adapter and the mobile terminal supporting with it have been there is, charging quickly source adapter can use higher charging voltage to charge for mobile terminal, such as, use the charging voltage of 12V to charge for mobile terminal.But common charging modes only supported by existing portable power source, lower charging voltage namely only can be used to charge for mobile terminal, and therefore its charging rate is slower.
Utility model content
In view of this, the utility model embodiment provides a kind of portable power source, different charging voltages can be provided to be mobile terminal charging, thus enable portable power source with higher charging voltage for mobile terminal charges, to improve charging rate.
For achieving the above object, the utility model mainly provides following technical scheme:
A kind of portable power source is provided, described portable power source comprises: portable power source input, battery, the charging chip be connected with described portable power source input and described battery, voltage conversion circuit and portable power source output, the input of described voltage conversion circuit is connected to described battery, the output of described voltage conversion circuit is connected to described portable power source output, described portable power source input is for connecting power supply adaptor, described portable power source output is for connecting mobile terminal, wherein, described voltage conversion circuit is the adjustable voltage conversion circuit of output voltage, described portable power source also comprises micro-control unit, described micro-control unit is connected to described portable power source output and described voltage conversion circuit, described micro-control unit is used for when being got the terminal adjustment signal that described mobile terminal sends by described portable power source output, the output voltage controlling described voltage conversion circuit is increased to described second charging voltage from the first charging voltage, described second charging voltage is greater than described first charging voltage, and described terminal adjustment signal can accept described second charging voltage for identifying described mobile terminal.
Particularly, described micro-control unit is connected to described portable power source input, described micro-control unit also transfers to described portable power source input for generation of power end adjustment signal, and described power end adjustment signal can accept described second charging voltage for identifying described portable power source.
Particularly, described micro-control unit is connected to described portable power source input by described charging chip, described micro-control unit specifically for, by described charging chip, current limliting is carried out to the electric current on described portable power source input, form described power end adjustment signal to make the curent change on described portable power source input.
Particularly, described portable power source output comprises output head anode and negative pole of output end, and described output head anode is connected to the output of described voltage conversion circuit;
Described portable power source also comprises sampling module, described micro-control unit is connected to described portable power source output by described sampling module, described sampling module comprises the first resistance and amplifier, described negative pole of output end is by described first grounding through resistance, described negative pole of output end is also connected to the input of described amplifier, and the output of described amplifier is connected to described micro-control unit.
Particularly, described voltage conversion circuit also comprises control end;
Described portable power source also comprises control module, and described micro-control unit is connected to described voltage conversion circuit by described control module, and described control module comprises the second resistance, the 3rd resistance and switching tube;
One end of described second resistance is connected to the control end of described voltage conversion circuit, the other end ground connection of described second resistance, one end of described 3rd resistance is connected to the control end of described voltage conversion circuit, the other end of described 3rd resistance is connected to the first end of described switching tube, second end ground connection of described switching tube, the control end of described switching tube is connected to described micro-control unit, when described micro-control unit gets described terminal adjustment signal, described micro-control unit sends the control end that control switch controls signal to described switching tube, to change the ON-OFF state of described switching tube, the second magnitude of voltage is become from the first magnitude of voltage to make the magnitude of voltage of described voltage conversion circuit control end, when the magnitude of voltage of described voltage conversion circuit control end is described first magnitude of voltage, the output voltage of described voltage conversion circuit is described first charging voltage, when the magnitude of voltage of described voltage conversion circuit control end is described second magnitude of voltage, the output voltage of described voltage conversion circuit is described second charging voltage.
Particularly, described terminal adjustment signal and described power end adjustment signal are identical signal.
Particularly, described micro-control unit is also for when described portable power source output and described mobile terminal disconnect, described voltage conversion circuit is resetted, when next described portable power source output is connected with mobile terminal, the output voltage of described voltage conversion circuit is described first charging voltage.
The portable power source that the utility model provides, can the end modification signal that be got mobile terminal transmission by micro-control unit MCU judge whether this mobile terminal can accept the second charging voltage, if, then be increased to the second charging voltage by the output voltage of micro-control unit MCU control voltage change-over circuit from the first charging voltage, thus make portable power source can provide corresponding charging voltage according to the difference of mobile terminal, namely different charging voltages can be provided to be mobile terminal charging, thus enable portable power source with higher charging voltage for mobile terminal charges, to improve charging rate.
Accompanying drawing explanation
The structured flowchart of a kind of portable power source that Fig. 1 provides for the utility model embodiment;
The structured flowchart of the another kind of portable power source that Fig. 2 provides for the utility model embodiment.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, the utility model embodiment provides a kind of portable power source, this portable power source comprises: portable power source input CN1, battery bat, the charging chip U1 (ChargeIC) be connected with portable power source input CN1 and battery bat, voltage conversion circuit U2 and portable power source output CN2, the input of voltage conversion circuit U2 is connected to battery bat, the output of voltage conversion circuit U2 is connected to portable power source output CN2, portable power source input CN1 is for connecting power supply adaptor, portable power source output CN2 is for connecting mobile terminal, charging chip U1 is used for controlling the charging of battery bat, wherein, voltage conversion circuit U2 is the adjustable voltage conversion circuit of output voltage, above-mentioned portable power source also comprises micro-control unit (MicrocontrollerUnit, MCU), micro-control unit MCU is connected to portable power source output CN2 and voltage conversion circuit U2, micro-control unit MCU is used for when being got the terminal adjustment signal that mobile terminal sends by portable power source output CN2, the output voltage of control voltage change-over circuit U2 is increased to the second charging voltage V2 from the first charging voltage V1, second charging voltage V2 is greater than the first charging voltage V1, and this terminal adjustment signal can accept the second charging voltage for identifying this mobile terminal.Below by way of portable power source be mobile terminal charging concrete scene so that the portable power source in the present embodiment to be described, first charging voltage V1 is common charging voltage, second charging voltage V2 is quick charge voltage, when portable power source output CN2 accesses mobile terminal, owing to also not judging whether this mobile terminal can accept quick charge voltage, therefore the output voltage of voltage conversion circuit U2 is defaulted as common charging voltage, if this mobile terminal can not accept quick charge voltage, then mobile terminal can not pass through portable power source output CN2 transmitting terminal adjustment signal, now the output voltage of voltage conversion circuit U2 is still common charging voltage, to adapt to this mobile terminal, if this mobile terminal can accept quick charge voltage, then mobile terminal can by portable power source output CN2 transmitting terminal adjustment signal to portable power source, now MCU can obtain terminal adjustment signal, and the output voltage of control voltage change-over circuit U2 is increased to quick charge voltage from common charging voltage, to adapt to this mobile terminal, improve the charging rate of mobile terminal.
Portable power source in the present embodiment, can the end modification signal that be got mobile terminal transmission by micro-control unit MCU judge whether this mobile terminal can accept the second charging voltage, if, then be increased to the second charging voltage by the output voltage of micro-control unit MCU control voltage change-over circuit from the first charging voltage, thus make portable power source can provide corresponding charging voltage according to the difference of mobile terminal, namely different charging voltages can be provided to be mobile terminal charging, thus enable portable power source with higher charging voltage for mobile terminal charges, to improve charging rate.
As shown in Figure 2, further, micro-control unit MCU is connected to portable power source input CN1, and micro-control unit MCU also transfers to portable power source input CN1 for generation of power end adjustment signal, and this power end adjustment signal can accept above-mentioned second charging voltage V2 for identifying portable power source.Below by way of power supply adaptor be portable power source charging concrete scene to further illustrate the portable power source in the present embodiment, when portable power source input CN1 connects power supply adaptor, power end adjustment signal can be sent to power supply adaptor, common power supply adaptor only can export the first charging voltage V1, and support that the power supply adaptor of quick charge can export the second charging voltage V2, if this power supply adaptor is the adapter supporting quick charge, then can recognize this power end adjustment signal, and the output voltage of power supply adaptor is become the second charging voltage V2 from the first charging voltage V1, thus improve the charging rate of portable power source.
Particularly, micro-control unit MCU is connected to portable power source input CN1 by charging chip U1, micro-control unit MCU specifically for, by charging chip U1, current limliting is carried out to the electric current on portable power source input CN1, form above-mentioned power end adjustment signal to make the curent change on portable power source input CN1.Similarly, by controlling the size of electric current in existing charging process thus produce power end adjustment signal, without the need to this signal of individual transmission, the transmission of signal can be realized in the process of charging, thus can better utilize existing charging inlet.
Particularly, portable power source output CN2 comprises output head anode P+ and negative pole of output end P-, and output head anode P+ is connected to the output of voltage conversion circuit U2; Above-mentioned portable power source also comprises sampling module U3, micro-control unit MCU is connected to portable power source output CN2 by sampling module U3, sampling module U3 comprises the first resistance R1 and amplifier M, negative pole of output end P-is by the first resistance R1 ground connection, negative pole of output end P-is also connected to the input of amplifier M, the output of amplifier M is connected to micro-control unit MCU, according to the output voltage waveforms of amplifier M, micro-control unit MCU judges whether portable power source output CN2 receives above-mentioned terminal adjustment signal.Mobile terminal is after connection portable power source output CN2, portable power source can be formed loop by output head anode P+ and negative pole of output end P-and mobile terminal thus be charged, if this mobile terminal supports quick charge, then this mobile terminal can carry out current limliting to charging current, terminal adjustment signal (such as square wave) is formed by the size constantly changing current value, therefore portable power source needs to be sampled to current value by the first resistance R1, the size of current value is reflected by the magnitude of voltage at negative pole of output end P-place, the magnitude of voltage of amplifier M to this place amplifies, judge whether to receive terminal adjustment signal by micro-control unit MCU afterwards.By controlling the size of electric current in existing charging process thus produce terminal adjustment signal, without the need to this signal of individual transmission, the transmission of signal can be realized in the process of charging, thus can better utilize existing charging inlet.
Particularly, voltage conversion circuit U2 also comprises control end, above-mentioned portable power source also comprises control module U4, and micro-control unit MCU is connected to voltage conversion circuit U2 by control module U4, and control module U4 comprises the second resistance R2, the 3rd resistance R3 and switching tube Q, one end of second resistance R2 is connected to the control end of voltage conversion circuit U2, the other end ground connection of the second resistance R2, one end of 3rd resistance R3 is connected to the control end of voltage conversion circuit U2, the other end of the 3rd resistance R3 is connected to the first end of switching tube Q, the second end ground connection of switching tube Q, the control end of switching tube Q is connected to micro-control unit MCU, when micro-control unit MCU gets above-mentioned terminal adjustment signal, micro-control unit MCU sends the control end that control switch controls signal to switching tube Q, to change the ON-OFF state of switching tube Q, the second magnitude of voltage is become from the first magnitude of voltage to make the magnitude of voltage of voltage conversion circuit U2 control end, when the magnitude of voltage of voltage conversion circuit U2 control end is the first magnitude of voltage, the output voltage of voltage conversion circuit U2 is the first charging voltage V1, when the magnitude of voltage of voltage conversion circuit U2 control end is the second magnitude of voltage, the output voltage of voltage conversion circuit U2 is the second charging voltage V2.
Particularly, above-mentioned terminal adjustment signal and above-mentioned power end adjustment signal can be identical signal.In the prior art, support quick charge mobile terminal can with support quick charge power supply adaptor with the use of, support that the mobile terminal of quick charge is when being connected to power supply adaptor, mobile terminal can send signal specific to power supply adaptor, if this power supply adaptor supports quick charge, then this power supply adaptor can identify this signal specific, when power supply adaptor recognizes this signal specific, output voltage can be become higher quick charge voltage from lower common voltage, thus make mobile terminal that higher voltage can be used to carry out quick charge, in the present embodiment, above-mentioned terminal adjustment signal and above-mentioned power end adjustment signal can think above-mentioned signal specific, portable power source can receive this signal specific and judge whether mobile terminal supports quick charge on the one hand, thus use corresponding voltage to charge, this signal specific can be sent to power supply adaptor on the other hand, so that support that the power supply adaptor of quick charge uses quick charge voltage to come for portable power source charging.Therefore, in the present embodiment, the scope of application of portable power source is larger.
Further, micro-control unit MCU is also for when portable power source output CN2 and mobile terminal disconnect, voltage conversion circuit U2 is resetted, when next portable power source output CN2 is connected with mobile terminal, the output voltage of voltage conversion circuit U2 is the first charging voltage V1, when ensureing to connect new mobile terminal with this, portable power source all first charges with common voltage at every turn, to avoid not supporting that mobile terminal produces harmful effect fast.
Particularly, the second charging voltage V2 can be 12V, the first charging voltage V1 can be 5V; Portable power source input CN1 can be MicroUSB port, and portable power source output CN2 can be USB port.
The above; be only embodiment of the present utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; change can be expected easily or replace, all should be encompassed within protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of described claim.
Claims (7)
1. a portable power source, it is characterized in that, described portable power source comprises: portable power source input, battery, the charging chip, voltage conversion circuit and the portable power source output that are connected with described portable power source input and described battery, the input of described voltage conversion circuit is connected to described battery, the output of described voltage conversion circuit is connected to described portable power source output, described portable power source input is for connecting power supply adaptor, described portable power source output is for connecting mobile terminal, wherein
Described voltage conversion circuit is the adjustable voltage conversion circuit of output voltage;
Described portable power source also comprises micro-control unit, described micro-control unit is connected to described portable power source output and described voltage conversion circuit, described micro-control unit is used for when being got the terminal adjustment signal that described mobile terminal sends by described portable power source output, the output voltage controlling described voltage conversion circuit is increased to the second charging voltage from the first charging voltage, described second charging voltage is greater than described first charging voltage, and described terminal adjustment signal can accept described second charging voltage for identifying described mobile terminal.
2. portable power source according to claim 1, is characterized in that,
Described micro-control unit is connected to described portable power source input, described micro-control unit also transfers to described portable power source input for generation of power end adjustment signal, and described power end adjustment signal can accept described second charging voltage for identifying described portable power source.
3. portable power source according to claim 2, is characterized in that,
Described micro-control unit is connected to described portable power source input by described charging chip, described micro-control unit specifically for, by described charging chip, current limliting is carried out to the electric current on described portable power source input, form described power end adjustment signal to make the curent change on described portable power source input.
4. portable power source according to claim 3, is characterized in that,
Described portable power source output comprises output head anode and negative pole of output end, and described output head anode is connected to the output of described voltage conversion circuit;
Described portable power source also comprises sampling module, described micro-control unit is connected to described portable power source output by described sampling module, described sampling module comprises the first resistance and amplifier, described negative pole of output end is by described first grounding through resistance, described negative pole of output end is also connected to the input of described amplifier, and the output of described amplifier is connected to described micro-control unit.
5. portable power source according to claim 4, is characterized in that,
Described voltage conversion circuit also comprises control end;
Described portable power source also comprises control module, and described micro-control unit is connected to described voltage conversion circuit by described control module, and described control module comprises the second resistance, the 3rd resistance and switching tube;
One end of described second resistance is connected to the control end of described voltage conversion circuit, the other end ground connection of described second resistance, one end of described 3rd resistance is connected to the control end of described voltage conversion circuit, the other end of described 3rd resistance is connected to the first end of described switching tube, second end ground connection of described switching tube, the control end of described switching tube is connected to described micro-control unit, when described micro-control unit gets described terminal adjustment signal, described micro-control unit sends the control end that control switch controls signal to described switching tube, to change the ON-OFF state of described switching tube, the second magnitude of voltage is become from the first magnitude of voltage to make the magnitude of voltage of described voltage conversion circuit control end, when the magnitude of voltage of described voltage conversion circuit control end is described first magnitude of voltage, the output voltage of described voltage conversion circuit is described first charging voltage, when the magnitude of voltage of described voltage conversion circuit control end is described second magnitude of voltage, the output voltage of described voltage conversion circuit is described second charging voltage.
6. portable power source as claimed in any of claims 2 to 5, is characterized in that,
Described terminal adjustment signal and described power end adjustment signal are identical signal.
7. portable power source according to claim 6, is characterized in that,
Described micro-control unit is also for when described portable power source output and described mobile terminal disconnect, described voltage conversion circuit is resetted, when next described portable power source output is connected with mobile terminal, the output voltage of described voltage conversion circuit is described first charging voltage.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520373420.4U CN204809904U (en) | 2015-06-02 | 2015-06-02 | Mobile power source |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520373420.4U CN204809904U (en) | 2015-06-02 | 2015-06-02 | Mobile power source |
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| CN204809904U true CN204809904U (en) | 2015-11-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114069777A (en) * | 2021-10-30 | 2022-02-18 | 深圳天德钰科技股份有限公司 | Charging device, system and charging method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114069777A (en) * | 2021-10-30 | 2022-02-18 | 深圳天德钰科技股份有限公司 | Charging device, system and charging method |
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