CN105322576A - Mobile power supply with rapid charging function - Google Patents
Mobile power supply with rapid charging function Download PDFInfo
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- CN105322576A CN105322576A CN201410262193.8A CN201410262193A CN105322576A CN 105322576 A CN105322576 A CN 105322576A CN 201410262193 A CN201410262193 A CN 201410262193A CN 105322576 A CN105322576 A CN 105322576A
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Abstract
The present invention relates to a mobile power supply with a rapid charging function. The mobile power supply comprises a control unit, a lithium battery unit, a charging management unit, a discharge unit, a MICRO USB charging unit, a DC charging unit and a charging selection unit. The lithium battery unit, the charging management unit, and the discharge unit are connected to the control unit respectively. The discharge unit is connected to the lithium battery unit. The MICRO USB charging unit and the DC charging unit are connected to the charging selection unit respectively. The charging selection unit is also connected to the charging management unit. The MICRO USB charging unit can charge the mobile power supply normally through a power supply adapter, the rapid charging of the mobile power supply can be realized by the DC charging unit through the power supply adapter, a charging mode can be selected through the charging selection unit, the mobile power supply is flexible to use, the rapid charging of the mobile power supply is realized and the waiting time of a user can be reduced, the mobile power supply is compatible with a normal charging mode and a quick charging mode, and so that the power supply is convenient to use.
Description
Technical field
The present invention relates to portable power source technical field, be specifically related to a kind of portable power source with quick-charge function.
Background technology
Portable power source directly to be powered to product by electronic product DC power supply input interface or to charge, and is generally also charger baby.Generally by lithium cell or dry cell as charge storage unit.General outfit multiple power sources adapter, usually having Large Copacity, multipurpose, volume is little, the life-span is long and the feature such as safe and reliable, is can whenever and wherever possible for the multiple digital products such as mobile phone, MP3, MP4, mobile phone, PDA, palmtop PC, handheld device are powered or the functional product of standby charging.
The electricity of portable power source to be powered for digital product along with it or is charged, and the electricity of himself battery constantly reduces, in order to can, again for digital product is powered or charge, need to charge to portable power source.At present, on market, portable power source mostly adopts MicroUSB interface to charge the battery.Because being subject to, MicroUSB interface is maximum bears electric current (common maximum 1A, special be no more than 2A) restriction, and the input power of portable power source only has 5W, and special maximal input is no more than 10W.In prior art, portable power source generally uses 5V1A power supply adaptor or 5V2A power supply adaptor to charge.And the current main flow of portable power source capacity is at 10AH (36WH) or more, the charging of 5V1A power supply adaptor is used then to need 8-10 hour could be full of electricity for portable power source; Use the charging of 5V2A power supply adaptor also to need more than 4 hours, more jumbo portable power source is then needed to the time more grown.
Summary of the invention
The object of the invention is to overcome shortcomings and deficiencies of the prior art, a kind of portable power source with quick-charge function is provided.
Object of the present invention is achieved through the following technical solutions: a kind of portable power source with quick-charge function, comprise control unit, lithium cells, Charge Management unit, discharge cell, MICROUSB charhing unit, DC charhing unit and charging selected cell, described lithium cells, Charge Management unit and discharge cell are connected with control unit respectively, described discharge cell is also connected with lithium cells, described MICROUSB charhing unit and DC charhing unit are connected with charging selected cell respectively, and charging selected cell is also connected with Charge Management unit.
As preferably, described DC charhing unit comprises DC charging inlet, resistance R39, electric capacity C29, electric capacity C33, electric capacity C32, resistance R39 mono-termination DC charging inlet, and the other end is through electric capacity C29 ground connection; A termination DC charging inlet after electric capacity C33 is in parallel with electric capacity C32, connects first input end and the output of charging selected cell, other end ground connection simultaneously.
As preferably, described MICROUSB charhing unit comprises MICROUSB testing circuit and MICROUSB booster circuit, and described MICROUSB booster circuit is connected with charging selected cell, and MICROUSB testing circuit is connected with control unit.
As preferably, described MICROUSB testing circuit comprises MICROUSB charging inlet, electric capacity C35, resistance R26, resistance R4, triode Q5, electric capacity C35 mono-termination MICROUSB charging inlet, connects the base stage of triode Q5, other end ground connection simultaneously after series resistance R26; Connect the emitter of triode Q5 after the base series resistor R4 of triode Q5, the grounded emitter of triode Q5, the collector electrode of triode Q5 is connected with control unit; MICROUSB charging inlet is also connected with MICROUSB booster circuit.
As preferably, described MICROUSB booster circuit comprises SX1318 chip, electric capacity C27, resistance R38, resistance R23, inductance L 6, voltage stabilizing didoe D2, resistance R36, resistance R37, electric capacity C9, electric capacity C47, electric capacity C48, electric capacity C49, electric capacity C50, the VIN pin of SX131S chip meets MICROUSB charging inlet VUSB_IN, simultaneously ground connection after series capacitance C27; Ground connection after the EN pin serial connection resistance R23 of SX131S chip, meets MICROUSB charging inlet VUSB_IN after series resistance R38 simultaneously; Inductance L 6 is connected across between the SW pin of SX131S chip and MICROUSB charging inlet VUSB_IN; The SW pin of SX131S chip connects the positive pole of voltage stabilizing didoe D2, and the negative pole of voltage stabilizing didoe D2 is ground connection after series resistance R36, R37 successively; The FB pin of SX131S chip is connected with the node between resistance R36 and resistance R37; One end ground connection after electric capacity C9, electric capacity C47, electric capacity C48, electric capacity C49, electric capacity C50 parallel connection, the negative pole of another termination voltage stabilizing didoe D2, connects the second input of charging selected cell simultaneously.
As preferably, described charging selected cell comprises triode Q14, resistance R40, resistance R6, electric capacity C30, and the drain electrode d of triode Q4 is connected with MICROUSB booster circuit as the second input of charging selected cell; Ground connection after grid g series resistance R40, is connected with the source s of DC charhing unit and triode Q4 as the first input end of charging selected cell after series resistance R6 simultaneously respectively; Source electrode s connects control unit, simultaneously ground connection after series capacitance C30.
As preferably, described Charge Management unit adopts BQ24725 chip, and described control unit adopts STM8S003F3 chip.
As preferably, described lithium cells comprises two lithium batteries and protective circuit thereof that are connected in series.
As preferably, described lithium cells comprises S8252 chip, the first lithium battery BAT1 be connected in series and the second lithium battery BAT2, the FS8205A chip U11 be connected in parallel and the 2nd FS8205A chip U12, positive pole after first lithium battery BAT1 connects with the second lithium battery BAT2 is connected with discharge cell, negative pole connects the VDD pin of S8252 chip by electric capacity C36, connects the S1 pin of a FS8205A chip U11 and the 2nd FS8205A chip U12 and the VSS pin of S8252 chip respectively simultaneously; The positive pole of the lithium battery after series connection is connect after the VDD pin serial connection resistance R10 of S8252 chip, the negative pole of the rear lithium battery of series connection is connect after the VC pin serial connection electric capacity C11 of S8252 chip, connect the node of the first lithium battery and the second lithium battery after series resistance R12 simultaneously, ground connection after the VM pin serial connection resistance R21 of S8252 chip, the CO pin of S8252 chip connects the G2 pin of a FS8205A chip U11 and the 2nd FS8205A chip U12, and the DO pin of S8252 chip connects the G1 pin of a FS8205A chip U11 and the 2nd FS8205A chip U12; The equal ground connection of S2 pin of the one FS8205A chip U11 and the 2nd FS8205A chip U12.
As preferably; described discharge cell comprises discharge protection circuit and electric discharge interface circuit; described discharge protection circuit is connected with control unit and lithium cells respectively; described electric discharge interface circuit is connected with control unit and discharge protection circuit respectively; described discharge protection circuit adopts TPS54335D synchronous buck chip, and described electric discharge interface circuit adopts TPS2514 control chip and FS8205A.
As preferably, described portable power source also comprises push-button unit, described push-button unit comprises resistance R68, electric capacity C1, switching device S2, resistance R69, resistance R68 one end is connected with control unit, ground connection after other end series capacitance C1, ground connection after tandem tap S2 simultaneously, and after series resistance R69, connect+3.3V direct voltage.
Electric power detection unit and battery capacity indication unit is also comprised as preferred, described portable power source, described battery capacity indication unit comprises resistance R75, resistance R76, resistance R77, resistance R78, light-emitting diode D11, light-emitting diode D12, light-emitting diode D13, light-emitting diode D14, the negative pole of light-emitting diode D11 connects the PC3 pin of STM8S003F3 chip, connects+3.3V voltage after cathode series resistance R75; The negative pole of light-emitting diode D12 connects the PC4 pin of STM8S003F3 chip, connects+3.3 voltages after cathode series resistance R76; The negative pole of light-emitting diode D13 connects the PC5 pin of the STM8S003F3 chip of control unit, connects+3.3V voltage after cathode series resistance R77; The negative pole of light-emitting diode D14 connects the PC6 pin of the STM8S003F3 chip of control unit, connects+3.3V voltage after cathode series resistance R78.
The present invention comprises following advantage and beneficial effect compared to existing technology:
(1) the present invention is provided with MICROUSB charhing unit and DC charhing unit, and MICROUSB charhing unit charges normal portable power source by power supply adaptor; DC charhing unit realizes quick charge by power supply adaptor to portable power source, and by charging selected cell, charging modes is selected, use flexibly, and portable power source is realized to the time of quick charge person's wait capable of reducing using, compatible normal charging mode and fast charge mode, make the use of portable power source convenient.
(2) described lithium cells comprises two lithium batteries and protective circuit thereof be connected in series, and improve the charging voltage at lithium battery two ends by being carried out by two lithium batteries connecting, do not need excessive electric current when portable power source fills fast, circuit working is stablized.
(3) described Charge Management unit adopts high-precision BQ24725 chip, makes the conversion efficiency of portable power source high.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the portable power source in embodiment with quick-charge function;
Fig. 2 is the circuit theory diagrams of control unit in embodiment;
Fig. 3 is the circuit theory diagrams of MICROUSB testing circuit in embodiment;
Fig. 4 is the circuit theory diagrams of MICROUSB booster circuit in embodiment;
Fig. 5 is the circuit theory diagrams of DC charhing unit in embodiment;
Fig. 6 is the circuit theory diagrams of selected cell of charging in embodiment;
Fig. 7 is the circuit theory diagrams of Charge Management unit in embodiment;
Fig. 8 is the circuit theory diagrams of lithium cells in embodiment;
Fig. 9 is the circuit theory diagrams of discharge protection circuit in embodiment;
Figure 10 is the circuit theory diagrams of interface circuit of discharging in embodiment;
Figure 11 is the circuit theory diagrams of push-button unit in embodiment;
Figure 12 is the circuit theory diagrams of electric power detection unit in embodiment;
Figure 13 is the circuit theory diagrams of battery capacity indication unit in embodiment.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1, a kind of portable power source with quick-charge function, comprise: control unit, lithium cells, Charge Management unit, discharge cell, MICROUSB charhing unit, DC charhing unit, charging selected cell, push-button unit, electric power detection unit and battery capacity indication unit, described lithium cells, Charge Management unit, discharge cell, push-button unit, electric power detection unit and battery capacity indication unit are connected with control unit respectively, described discharge cell is also connected with lithium cells respectively with push-button unit, described MICROUSB charhing unit and DC charhing unit are connected with charging selected cell respectively, charging selected cell is also connected with Charge Management unit.
Described control unit adopts STM8S003F3 chip, and physical circuit as shown in Figure 2.
Described MICROUSB charhing unit comprises MICROUSB testing circuit and MICROUSB booster circuit, and described MICROUSB booster circuit is connected with charging selected cell, and MICROUSB testing circuit is connected with control unit.As shown in Figure 3, described MICROUSB testing circuit comprises MICROUSB charging inlet, electric capacity C35, resistance R26, resistance R4, triode Q5, electric capacity C35 mono-termination MICROUSB charging inlet, connects the base stage of triode Q5, other end ground connection simultaneously after series resistance R26; Connect the emitter of triode Q5 after the base series resistor R4 of triode Q5, the grounded emitter of triode Q5, the collector electrode of triode Q5 is connected with control unit; MICROUSB charging inlet is also connected with MICROUSB booster circuit.
As shown in Figure 4, described MICROUSB booster circuit comprises SX1318 chip, electric capacity C27, resistance R38, resistance R23, inductance L 6, voltage stabilizing didoe D2, resistance R36, resistance R37, electric capacity C9, electric capacity C47, electric capacity C48, electric capacity C49, electric capacity C50, the VIN pin of SX131S chip meets MICROUSB charging inlet VUSB_IN, simultaneously ground connection after series capacitance C27; Ground connection after the EN pin serial connection resistance R23 of SX131S chip, meets MICROUSB charging inlet VUSB_IN after series resistance R38 simultaneously; Inductance L 6 is connected across between the SW pin of SX131S chip and MICROUSB charging inlet VUSB_IN; The SW pin of SX131S chip connects the positive pole of voltage stabilizing didoe D2, and the negative pole of voltage stabilizing didoe D2 is ground connection after series resistance R36, R37 successively; The FB pin of SX131S chip is connected with the node between resistance R36 and resistance R37; One end ground connection after electric capacity C9, electric capacity C47, electric capacity C48, electric capacity C49, electric capacity C50 parallel connection, the negative pole of another termination voltage stabilizing didoe D2, connects the second input of charging selected cell simultaneously.
As shown in Figure 5, described DC charhing unit comprises DC charging inlet, resistance R39, electric capacity C29, electric capacity C33, electric capacity C32, resistance R39 mono-termination DC charging inlet, and the other end is through electric capacity C29 ground connection; A termination DC charging inlet after electric capacity C33 is in parallel with electric capacity C32, connects first input end and the output of charging selected cell, other end ground connection simultaneously.
As shown in Figure 6, described charging selected cell comprises triode Q14, resistance R40, resistance R6, electric capacity C30, and the drain electrode d of triode Q4 is connected with MICROUSB booster circuit as the second input of charging selected cell; Ground connection after grid g series resistance R40, is connected with the source s of DC charhing unit and triode Q4 as the first input end of charging selected cell after series resistance R6 simultaneously respectively; Source electrode s connects control unit, simultaneously ground connection after series capacitance C30.
When DC charhing unit access power supply adaptor, resistance R6 high level, the control gate g of triode Q14 is high level, triode Q14 ends, now the circuit of MICROUSB charhing unit and Charge Management unit disconnects, the circuit turn-on of DC charhing unit and Charge Management unit, and quick charge is opened; When DC charhing unit does not access power supply adaptor, because of resistance R40 ground connection, the control gate g of triode Q14 is low level, triode Q14 conducting, the circuit turn-on of MICROUSB charhing unit and Charge Management unit, and now common charging is opened.
Described Charge Management unit adopts BQ24725 chip, and is connected with control unit specifically as shown in Figure 7 by I2C bus.Described Charge Management unit, for transshipping voltage protection, overcurrent protection, battery and MOSFET short-circuit protection, improves the fail safe of portable power source charging.Guarantee that the charging voltage precision of portable power source is up to 19.2V, ± 3%; Charging current precision up to 8.128A, ± 3%; Input current precision up to 8.064A, ± 2%.
Described lithium cells comprises two lithium batteries and protective circuit thereof that are connected in series.As shown in Figure 8, described lithium cells comprises S8252 chip, the first lithium battery BAT1 be connected in series and the second lithium battery BAT2, the FS8205A chip U11 be connected in parallel and the 2nd FS8205A chip U12, positive pole after first lithium battery BAT1 connects with the second lithium battery BAT2 is connected with discharge cell, negative pole connects the VDD pin of S8252 chip by electric capacity C36, connects the S1 pin of a FS8205A chip U11 and the 2nd FS8205A chip U12 and the VSS pin of S8252 chip respectively simultaneously; The positive pole of the lithium battery after series connection is connect after the VDD pin serial connection resistance R10 of S8252 chip, the negative pole of the rear lithium battery of series connection is connect after the VC pin serial connection electric capacity C11 of S8252 chip, connect the node of the first lithium battery and the second lithium battery after series resistance R12 simultaneously, ground connection after the VM pin serial connection resistance R21 of S8252 chip, the CO pin of S8252 chip connects the G2 pin of a FS8205A chip U11 and the 2nd FS8205A chip U12, and the DO pin of S8252 chip connects the G1 pin of a FS8205A chip U11 and the 2nd FS8205A chip U12; The equal ground connection of S2 pin of the one FS8205A chip U11 and the 2nd FS8205A chip U12.
Described discharge cell comprises discharge protection circuit and electric discharge interface circuit, and described discharge protection circuit is connected with control unit and lithium cells respectively, and described electric discharge interface circuit is connected with control unit and discharge protection circuit respectively.As shown in Figure 9, described discharge protection circuit adopts TPS54335D synchronous buck chip, has Thermal shutdown and overvoltage conversion defencive function.As shown in Figure 10, described electric discharge interface circuit adopts TPS2514 control chip and FS8205A.
As shown in figure 11, described push-button unit comprises resistance R68, electric capacity C1, switching device S2, resistance R69, and resistance R68 one end is connected with control unit, ground connection after other end series capacitance C1, ground connection after tandem tap S2 simultaneously, and after series resistance R69, connect+3.3V direct voltage.
As shown in figure 12, described electric power detection unit comprises resistance R71, resistance R72, electric capacity C34, a termination lithium cells after described resistance R71, resistance R72 are connected in series, other end ground connection; Ground connection after the node series capacitance C34 of resistance R71 and resistance R72, connects control unit simultaneously.
As shown in figure 13, described battery capacity indication unit comprises resistance R75, resistance R76, resistance R77, resistance R78, light-emitting diode D11, light-emitting diode D12, light-emitting diode D13, light-emitting diode D14, the negative pole of light-emitting diode D11 connects the PC3 pin of STM8S003F3 chip, connects+3.3V voltage after cathode series resistance R75; The negative pole of light-emitting diode D12 connects the PC4 pin of STM8S003F3 chip, connects+3.3 voltages after cathode series resistance R76; The negative pole of light-emitting diode D13 connects the PC5 pin of the STM8S003F3 chip of control unit, connects+3.3V voltage after cathode series resistance R77; The negative pole of light-emitting diode D14 connects the PC6 pin of the STM8S003F3 chip of control unit, connects+3.3V voltage after cathode series resistance R78.
Above-described embodiment is the present invention's preferably execution mode; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. one kind has the portable power source of quick-charge function, comprise control unit, lithium cells, Charge Management unit and discharge cell, it is characterized in that: also comprise MICROUSB charhing unit, DC charhing unit and charging selected cell, described lithium cells, Charge Management unit and discharge cell are connected with control unit respectively, described discharge cell is also connected with lithium cells, described MICROUSB charhing unit and DC charhing unit are connected with charging selected cell respectively, and charging selected cell is also connected with Charge Management unit.
2. portable power source according to claim 1, is characterized in that: described DC charhing unit comprises DC charging inlet, resistance R39, electric capacity C29, electric capacity C33, electric capacity C32, resistance R39 mono-termination DC charging inlet, and the other end is through electric capacity C29 ground connection; A termination DC charging inlet after electric capacity C33 is in parallel with electric capacity C32, connects first input end and the output of charging selected cell, other end ground connection simultaneously.
3. portable power source according to claim 1, it is characterized in that: described MICROUSB charhing unit comprises MICROUSB testing circuit and MICROUSB booster circuit, described MICROUSB booster circuit is connected with charging selected cell, and MICROUSB testing circuit is connected with control unit.
4. portable power source according to claim 3, it is characterized in that: described MICROUSB testing circuit comprises MICROUSB charging inlet, electric capacity C35, resistance R26, resistance R4, triode Q5, electric capacity C35 mono-termination MICROUSB charging inlet, connect the base stage of triode Q5 after series resistance R26, other end ground connection simultaneously; Connect the emitter of triode Q5 after the base series resistor R4 of triode Q5, the grounded emitter of triode Q5, the collector electrode of triode Q5 is connected with control unit; MICROUSB charging inlet is also connected with MICROUSB booster circuit.
5. portable power source according to claim 4, it is characterized in that: described MICROUSB booster circuit comprises SX1318 chip, electric capacity C27, resistance R38, resistance R23, inductance L 6, voltage stabilizing didoe D2, resistance R36, resistance R37, electric capacity C9, electric capacity C47, electric capacity C48, electric capacity C49, electric capacity C50, the VIN pin of SX131S chip meets MICROUSB charging inlet VUSB_IN, simultaneously ground connection after series capacitance C27; Ground connection after the EN pin serial connection resistance R23 of SX131S chip, meets MICROUSB charging inlet VUSB_IN after series resistance R38 simultaneously; Inductance L 6 is connected across between the SW pin of SX131S chip and MICROUSB charging inlet VUSB_IN; The SW pin of SX131S chip connects the positive pole of voltage stabilizing didoe D2, and the negative pole of voltage stabilizing didoe D2 is ground connection after series resistance R36, R37 successively; The FB pin of SX131S chip is connected with the node between resistance R36 and resistance R37; One end ground connection after electric capacity C9, electric capacity C47, electric capacity C48, electric capacity C49, electric capacity C50 parallel connection, the negative pole of another termination voltage stabilizing didoe D2, connects the second input of charging selected cell simultaneously.
6. the portable power source according to any one of claim 3 to 5, it is characterized in that: described charging selected cell comprises triode Q14, resistance R40, resistance R6, electric capacity C30, the drain electrode d of triode Q4 is connected with MICROUSB booster circuit as the second input of charging selected cell; Ground connection after grid g series resistance R40, is connected with the source s of DC charhing unit and triode Q4 as the first input end of charging selected cell after series resistance R6 simultaneously respectively; Source electrode s connects control unit, simultaneously ground connection after series capacitance C30.
7. portable power source according to claim 1, is characterized in that: described Charge Management unit adopts BQ24725 chip, and described control unit adopts STM8S003F3 chip.
8. portable power source according to claim 1, is characterized in that: described lithium cells comprises two lithium batteries and protective circuit thereof that are connected in series.
9. portable power source according to claim 8, it is characterized in that: described lithium cells comprises S8252 chip, the first lithium battery BAT1 be connected in series and the second lithium battery BAT2, the FS8205A chip U11 be connected in parallel and the 2nd FS8205A chip U12, positive pole after first lithium battery BAT1 connects with the second lithium battery BAT2 is connected with discharge cell, negative pole connects the VDD pin of S8252 chip by electric capacity C36, connects the S1 pin of a FS8205A chip U11 and the 2nd FS8205A chip U12 and the VSS pin of S8252 chip respectively simultaneously; The positive pole of the lithium battery after series connection is connect after the VDD pin serial connection resistance R10 of S8252 chip, the negative pole of the rear lithium battery of series connection is connect after the VC pin serial connection electric capacity C11 of S8252 chip, connect the node of the first lithium battery and the second lithium battery after series resistance R12 simultaneously, ground connection after the VM pin serial connection resistance R21 of S8252 chip, the CO pin of S8252 chip connects the G2 pin of a FS8205A chip U11 and the 2nd FS8205A chip U12, and the DO pin of S8252 chip connects the G1 pin of a FS8205A chip U11 and the 2nd FS8205A chip U12; The equal ground connection of S2 pin of the one FS8205A chip U11 and the 2nd FS8205A chip U12.
10. portable power source according to claim 1; it is characterized in that: described discharge cell comprises the discharge protection circuit and electric discharge interface circuit that connect successively; described discharge protection circuit is connected with control unit and lithium cells respectively; described discharge protection circuit adopts TPS54335D synchronous buck chip, and described electric discharge interface circuit adopts TPS2514 control chip and FS8205A.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410262193.8A CN105322576A (en) | 2014-06-12 | 2014-06-12 | Mobile power supply with rapid charging function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410262193.8A CN105322576A (en) | 2014-06-12 | 2014-06-12 | Mobile power supply with rapid charging function |
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Effective date of abandoning: 20191108 |