CN204304549U - Charger and charge management circuit - Google Patents
Charger and charge management circuit Download PDFInfo
- Publication number
- CN204304549U CN204304549U CN201420871474.9U CN201420871474U CN204304549U CN 204304549 U CN204304549 U CN 204304549U CN 201420871474 U CN201420871474 U CN 201420871474U CN 204304549 U CN204304549 U CN 204304549U
- Authority
- CN
- China
- Prior art keywords
- input
- resistance
- comparing unit
- usb interface
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000015572 biosynthetic process Effects 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000007726 management method Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 8
- 230000011664 signaling Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a kind of charger and charge management circuit, and this charger comprises charge management circuit, processor and USB interface, charge management circuit electrical connection processor and USB interface; Charge management circuit comprises judge module, switch module, division module and gating module; Judge module is serially connected between USB interface and the input of processor, for judging for processor identification charge type to the electronic equipment being linked into USB interface; Switch module is serially connected between USB interface and the output of processor, for the output voltage of the first and second signal ends of the control instruction adjustment USB interface according to processor; The control end of gating module, input and output are electrically connected to the output of processor, the output of division module and USB interface respectively, select different magnitudes of voltage to export the first and second signal ends of USB interface to for the control instruction according to processor from the output of division module.
Description
Technical field
The utility model relates to charging technique field, particularly relates to charger and charge management circuit.
Background technology
Along with the extensive use of mobile electronic device (as smart mobile phone, panel computer etc.), because the battery of portable electron device exists technical bottleneck, the flying power of battery is very limited, and the demand therefore for charger grows with each passing day.
Current support quick charge 2.0 editions standard (Quick Charge 2.0, be called for short QC2.0) mobile electronic device be often equipped with special QC2.0 charger, and such as new apple or three magnitude mobile electronic devices often also can be equipped with the charger of support large current charge special separately.Fig. 1 is the electrical block diagram of existing a kind of charger, as shown in Figure 1, the internal circuit of existing charger (such as onboard charger) uses typical managing chip CHY100 and peripheral circuit to realize and the handshake communication supporting the mobile electronic device that QC2.0 pattern is filled soon.Fig. 2 is the electrical block diagram of existing another kind of charger, as shown in Figure 2, the internal circuit of existing charger (such as onboard charger) uses typical configuring chip TPS2514 to come insertion and the corresponding charger mode supporting large current charge of configuration of identification apple or three magnitude mobile electronic devices.
Circuit in above-mentioned Fig. 1 and Fig. 2 can realize in the inside of a charger (on such as onboard charger, portable power source or wall charger), but all realize respectively with two USB interfaces at present, namely charger fills request soon by what support different mobile electronic devices with different USB interface, but this mode easily causes unmatched mistake to be inserted, thus makes the mobile electronic device inserted not reach enough fast charging rate.In addition, charger must use two or more standard USB delivery outlets to support different fast charge modes, goes to support a certain fast charge mode if some only have the charger of a standard USB interface just can only do corresponding choice.So, market also can not distinguish and the charger of compatibility the request of filling soon of QC2.0 mobile electronic device, apple and three magnitude mobile electronic devices by a standard USB interface.
Utility model content
The utility model provides a kind of charger, has the function of the charging of compatible various electronic, and completes the charging of the electronic equipment of number of different types by a USB interface.
The utility model also provides a kind of charge management circuit, and the processor of charger can be coordinated to complete the charging identification of polytype electronic equipment and effectively charge.
The utility model proposes a kind of charger, comprising: charge management circuit, processor and USB interface, charge management circuit electrical connection processor and USB interface; Wherein, charge management circuit comprises judge module, switch module, division module and gating module; Judge module is serially connected between USB interface and the input of processor, for judging the charge type for processor identification electronic equipment to the electronic equipment being linked into USB interface; Switch module is serially connected between USB interface and the output of processor, adjusts the first signal end of USB interface and the output voltage of secondary signal end for the control instruction according to processor; And the control end of gating module, input and output are electrically connected to the output of processor, the output of division module and USB interface respectively, different magnitudes of voltage is selected to export the first signal end and the secondary signal end of USB interface to for the control instruction according to processor from the output of division module.
In an embodiment of the present utility model, judge module comprises the first comparing unit, the second comparing unit, the 3rd comparing unit, the 4th comparing unit, the 5th comparing unit and the 6th comparing unit; One input of the first comparing unit, the second comparing unit, the 3rd comparing unit and the 4th comparing unit the electrical nodes connecing rear formation are electrically connected to the secondary signal end of USB interface and the output that another input is respectively electrically connected a reference voltage and the first comparing unit, the second comparing unit, the 3rd comparing unit and the 4th comparing unit is electrically connected to first input end, the second input, the 3rd input and the four-input terminal of processor respectively; And the 5th comparing unit and the 6th comparing unit an input and the electrical nodes connecing rear formation is electrically connected to the first signal end of USB interface and the output that another input is respectively electrically connected a reference voltage and the 5th comparing unit and the 6th comparing unit is electrically connected to the 5th input and the 6th input of processor respectively.
In an embodiment of the present utility model, described switch module is analog switch, transistor or triode; If analog switch or transistor, then the control end of analog switch or transistor is electrically connected to the output of processor, and transmission ends is serially connected between the secondary signal end of USB interface and earth terminal; If triode, then the base stage of triode is electrically connected to the output of processor, and collector and emitter is electrically connected to secondary signal end and the earth terminal of USB interface respectively.
In an embodiment of the present utility model, division module comprises the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance and the 6th resistance; First resistance and the second resistance, the 3rd resistance and the 4th resistance, the 5th resistance and the 6th resistance are serially connected between high level and earth terminal respectively successively; The string node of the first resistance and the second resistance and the string node of the 3rd resistance and the 4th resistance are electrically connected to the first input pin and second input pin of gating module respectively; And the 5th the string node of resistance and the 6th resistance be electrically connected to the 3rd input pin and the 4th input pin of gating module respectively.
In an embodiment of the present utility model, gating module comprises the first input pin, the second input pin, the 3rd input pin, the 4th input pin, the first output pin, the second output pin, the first control pin and the second control pin; First controls pin and second controls the control end that pin is electrically connected to processor; First output pin and the second output pin are electrically connected to USB interface first signal end and secondary signal end.
In an embodiment of the present utility model, gating module is two-way single pole double throw analog switch.
In an embodiment of the present utility model, USB interface comprises voltage end, and voltage end can provide the voltage of 5V, 9V, 12V and 20V.
In an embodiment of the present utility model, the first input end of processor, the second input, the 3rd input, four-input terminal, the 5th input, the 6th input, the first control end and the second control end are general object input/output port, and all can input or output high level and low level.
The utility model also proposes a kind of charge management circuit, and it comprises judge module, switch module, division module and gating module; Judge module is serially connected between USB interface and the input of processor, for judging the type for processor identification electronic equipment to the electronic equipment being linked into USB interface; Switch module is serially connected between USB interface and the output of processor, adjusts the first signal end of USB interface and the output voltage of secondary signal end for the control instruction according to processor; And the control end of gating module, input and output are electrically connected to the output of processor, the output of division module and USB interface respectively, different magnitudes of voltage is selected to export the first signal end and the secondary signal end of USB interface to for the control instruction according to processor from the output of division module.
In an embodiment of the present utility model, judge module comprises the first comparing unit, the second comparing unit, the 3rd comparing unit, the 4th comparing unit, the 5th comparing unit, the 6th comparing unit, the 7th resistance and the 8th resistance; One input of the first comparing unit, the second comparing unit, the 3rd comparing unit and the 4th comparing unit the electrical nodes connecing rear formation and the 7th resistance are connected in series secondary signal end to USB interface successively and the output that another input is respectively electrically connected a reference voltage and the first comparing unit, the second comparing unit, the 3rd comparing unit and the 4th comparing unit is electrically connected to first input end, the second input, the 3rd input and the four-input terminal of processor respectively; And the 5th comparing unit and the 6th comparing unit an input and the electrical nodes connecing rear formation and the 8th resistance are connected in series the first signal end to USB interface successively and the output that another input is respectively electrically connected a reference voltage and the 5th comparing unit and the 6th comparing unit is electrically connected to the 5th input and the 6th input of processor respectively.
In an embodiment of the present utility model, division module comprises the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance and the 6th resistance; First resistance and the second resistance, the 3rd resistance and the 4th resistance, the 5th resistance and the 6th resistance are serially connected between high level and earth terminal respectively successively; The string node of the first resistance and the second resistance and the string node of the 3rd resistance and the 4th resistance are electrically connected to the first input pin and second input pin of gating module respectively; And the 5th the string node of resistance and the 6th resistance be electrically connected to the 3rd input pin and the 4th input pin of gating module respectively; Gating module comprises the first input pin, the second input pin, the 3rd input pin, the 4th input pin, the first output pin, the second output pin, the first control pin and the second control pin; First controls pin and second controls the control end that pin is electrically connected to processor; First output pin and the second output pin are electrically connected to the first signal end and the secondary signal end of USB interface respectively.
In charger of the present utility model and charge management circuit, single standard USB interface realizes multiple compatibility of filling agreement soon, an i.e. usb compatible multiclass fast charge mode, compare existing use two special chips realize on the USB interface of correspondence respectively such as QC2.0 fill soon or apple, Samsung 10W fill soon, improve the compatibility of charger, also improve charge efficiency.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to technological means of the present utility model can be better understood, and can be implemented according to the content of description, and can become apparent to allow above-mentioned and other objects, features and advantages of the present utility model, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the electrical block diagram of existing a kind of charger.
Fig. 2 is the electrical block diagram of existing another kind of charger.
Fig. 3 is the electrical block diagram of charger of the present utility model.
Fig. 4 is the electrical block diagram of charge management circuit of the present utility model.
Detailed description of the invention
For further setting forth the utility model for the technological means reaching predetermined utility model object and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to according to detailed description of the invention, structure, feature and the effect that the utility model proposes, be described in detail as follows.
Fig. 3 is the electrical block diagram of charger of the present utility model.Refer to Fig. 3, the utility model provides a kind of charger 30, is applicable to as various electronic charging, and can applies on the wall on charger, onboard charger, portable power source and other charger products.This charger 30 comprises: charge management circuit 31, processor 33 and USB interface J1, and charge management circuit 31 is electrically connected processor 33 and USB interface J1; Charge management circuit 31 comprises judge module 311, switch module 313, division module 315 and gating module U3; Judge module 311 is serially connected between the input of USB interface J1 and processor 33, for judging the charge type identifying electronic equipment for processor 33 to the electronic equipment being linked into USB interface J1; Switch module 313 is serially connected between the output of USB interface J1 and processor 33, for adjusting the first signal end DP of USB interface J1 and the output voltage of secondary signal end DM according to the control instruction of processor 33; And the control end of gating module U3, input and output are electrically connected to the output of processor 33, the output of division module 315 and USB interface J1 respectively, different magnitudes of voltage is selected to export the first signal end DP and the secondary signal end DM of USB interface J1 to for the control instruction according to processor 33 from the output of division module 315.Particularly:
Judge module 311 comprises the first comparing unit U1A, the second comparing unit U1B, the 3rd comparing unit U1C, the 4th comparing unit U1D, the 5th comparing unit U2A and the 6th comparing unit U2B, first comparing unit U1A, second comparing unit U1B, one input of the 3rd comparing unit U1C and the 4th comparing unit U1D the electrical nodes connecing rear formation is electrically connected to the secondary signal end DM of USB interface and another input is respectively electrically connected a reference voltage and the first comparing unit U1A, second comparing unit U1B, the output of the 3rd comparing unit U1C and the 4th comparing unit U1D is electrically connected to the first input end DM_04 of processor 33 respectively, second input DM_20, 3rd input DM_10 and four-input terminal DM_16, and the 5th comparing unit U2A and the 6th comparing unit U2B an input and the electrical nodes connecing rear formation is electrically connected to the first signal end DP of USB interface and the output that another input is respectively electrically connected a reference voltage and the 5th comparing unit U2A and the 6th comparing unit U2B is electrically connected to the 5th input DP_04 and the 6th input DP_20 of processor 33 respectively.
Further, judge module 311 also comprises the 7th resistance R7 and the 8th resistance R8; 7th resistance R7 is serially connected in the secondary signal end DM of USB interface and an input of the first comparing unit U1A, the second comparing unit U1B, the 3rd comparing unit U1C and the 4th comparing unit U1D and connects between the electrical nodes of rear formation; And the 8th resistance R8 be serially connected in the first signal end DP of USB interface and an input of the 5th comparing unit U2A and the 6th comparing unit U2B and connect between the electrical nodes of rear formation.Certainly, these comparing units can realize the discrete component of voltage compare or a certain chip internal circuits such as analog-digital converter by voltage comparator or other (Analog to Digital Converter is called for short ADC and substitutes.
In addition, switch module 313 can be analog switch, transistor (as NMOS), triode (as NPN triode) or there is the circuit of switching function.When switch module 313 is analog switch, transistor or triode; If i.e. analog switch or transistor, then the control end of analog switch or transistor is electrically connected to the output of processor 33, and transmission ends is serially connected between the secondary signal end DM of USB interface J1 and earth terminal; If triode, then the base stage of triode is electrically connected to the output of processor 33, and collector and emitter is electrically connected to secondary signal end DM and the earth terminal of USB interface J1 respectively.When switch module 313 is for having the circuit of switching function, then such as switch module 313 can comprise the 9th resistance R9 and transistor Q1; 9th resistance R9 and transistor Q1 is serially connected between the secondary signal end DM of USB interface J1 and earth terminal successively and the control end of transistor Q1 is electrically connected to the output of processor 33.
In addition, division module 315 comprises the first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5 and the 6th resistance R6; First resistance R1 and the second resistance R2, the 3rd resistance R3 and the 4th resistance R4, the 5th resistance R5 and the 6th resistance R6 are serially connected between high level and earth terminal respectively successively; The string node of the first resistance R1 and the second resistance R2 and the string node of the 3rd resistance R3 and the 4th resistance R4 are electrically connected to the first input pin D1+ and the second input pin D1-of gating module U3 respectively; And the 5th the string node of resistance R5 and the 6th resistance R6 be electrically connected to the 3rd input pin D2+ and the 4th input pin D2-of gating module U3 respectively.
In addition, gating module U3 comprises the first input pin D1+, the second input pin D1-, the 3rd input pin D2+, the 4th input pin D2-, the first output pin D+, the second output pin D-, the first control pin SEL and second control pin OE; First controls pin SEL and second controls the control end that pin OE is electrically connected to processor 33; First output pin D+ and the second output pin D-is electrically connected to the first signal end DP and the secondary signal end DM of USB interface J1 respectively.Further, gating module U3 can be two-way single pole double throw analog switch, and the two-way single pole double throw analog switch also namely having forbidden energy and a channel selecting in the charger utilizing of this enforcement realizes the switching of such as apple pattern, Samsung pattern and QC2.0 originate mode.Can certainly realize with other similar functions discrete device.
In addition, USB interface J1 comprises voltage end VBUS, and voltage end VBUS can provide the different voltages of 5V, 9V, 12V and 20V etc.
In addition, the first input end DM_04 of processor 33, the second input DM_20, the 3rd input DM_10, four-input terminal DM_16, the 5th input DP_04, the 6th input DP_20, the first control end FC_MODE and the second control end QC_SEL are general object input/output port (General Purpose Input Output, be called for short GPIO), and all can input or output high level and low level.These interfaces also can realize the logic circuit of high and low level by software control.In addition, processor 33 can also control the output voltage of VBUS.
The core concept of the present embodiment utilizes GPIO (DM_04, DM_10, DM_16, DM_20, DP_04, DP_20) go to monitor the level on DM and DP and sequential, then, processor controls the logic level of FC_MODE, QC_SEL and the output voltage of VBUS.That is, for mobile phone, the charger of the present embodiment is by identifying the mobile phone inserted, then, if the mobile phone of apple and Samsung inserts, just mix corresponding voltage by divider resistance to DP and DM, then the VBUS of USB interface exports 5V (support big current); If the mobile phone of QC2.0 inserts, QC2.0 mobile phone can force some combinations of voltages from outside to DP and DM of USB interface, and according to the occurrence of combinations of voltages, then, the VBUS of USB interface can export 5V, 9V, 12V, 20V etc. accordingly.
Fig. 4 is the electrical block diagram of charge management circuit of the present utility model.Below in conjunction with Fig. 3 and Fig. 4, specific works principle of the present utility model is described in detail.
USB interface J1 is the standard USB interface of the charger such as charger, onboard charger, portable power source on such as wall, VBUS has and meets corresponding voltage and current fan-out capability of filling agreement soon, DM and DP can receive the signal from mobile devices such as mobile phones so that the processor in charger is made corresponding identification and is configured to cater to the different charge requirement of the mobile devices such as mobile phone.U3 is the two-way single pole double throw analog switch with signalling channel conducting selection and conducting forbidden energy, U1 and U2 forms six road voltage comparators.
The tie-point of resistance R1 and R2 is divided to 2.7V VDD=3.3V, the tie-point of R3 and R4 is divided to 2.0V VDD=3.3V, the tie-point of R5 and R6 is divided to 1.2V VDD=3.3V, R7 and R8 has certain metering function and exceeds vdd voltage to prevent the logic high voltage of DM and DP, and Q1 can wait the NMOS tube of drop-down 20K resistance R9 to ground level when appropriate DM line.
Reference voltage 0.4V, 1.0V, 1.6V and 2.0V are from the dividing potential drop of the voltage-stabilizing device output voltage in charger.Pin FC_MODE, QC_SEL, DM_04, DM_10, DM_16, DM_20, DP_04, DP_20 all can be connected to the GPIO of processor in charger.
The charger with circuit in similar Fig. 4 is as follows with the communication operations being inserted into the support QC2.0 mode mobile device of this USB interface, apple or Samsung mobile device by standard USB interface:
When the standard USB interface J1 of charger does not insert by USB cable the mobile device needing charging, QC_SEL and FC_MODE is default is all low level, now, the signalling channel D+ of U3 inside follows D1-conducting with D1+ conducting, D-, namely on USB interface J1, the voltage of DM is the voltage of 2.0V, DP is 2.7V.Now, NMOS tube Q1 is off state.
When the insertion detection circuit of charger detects that mobile device accesses, charger can wake internal processor up, and the VBUS pin getting through J1 loads to the current path of the earth terminal GND of J1 through mobile device.
Meanwhile, the processor in charger begins through its GPIO interface DM_04, DM_10, DM_16, DM_20, DP_04 and DP_20 to monitor DP and DM level change size and sequential.
When the level on DM and DP does not have significant change, keep the low level state of QC_SEL and FC_MODE, namely keep DP=2.7V, DM=2.0V, VBUS output voltage is 5V, and charger arrangement becomes the 10W charger mode of apple.
When the level of DM is pulled down to a certain level such as below 1.6V under certain sequential, keep QC_SEL low level constant, FC_MODE is set to logic high, now, the signalling channel D+ of U3 inside is with D2+ conducting, D-with D2-conducting, and namely on USB interface J1, the voltage of DM is 1.2V, the voltage of DP is also 1.2V, and DM with DP short circuit is connected, VBUS output voltage is 5V, and charger arrangement becomes the 10W charger mode of Samsung.
If through certain sequential, when DM is continued to be pulled down to a certain level such as below 1.0V more than 0.4V, after continuing the time keeping 1-1.5 second, QC_SEL is set to logic high by processor, namely U3 is disabled, D+/D-in U3 is not connected with either party of D1+/D1-with D2+/D2-, namely now disconnect between DM and DP, NMOS tube Q1 is pulled down to ground level by QC_SEL conducting and DM by 20K Ohmic resistance, through the identification of Millisecond, now, charger can be supported that the mobile device of QC2.0 agreement is defined as the charger can supporting QC2.0 pattern, the mobile device of the support QC2.0 then inserted can force different combinations of voltages to export corresponding QC2.0 charging quickly pressure to ask VBUS on DM and DP of J1.
When mobile device is extracted from the USB interface of charger, QC_SEL, FC_MODE and VBUS in charger return original state again.
The combinations of voltages that the mobile device simply enumerating support QC2.0 below adds on DP and DM of charger is for the requirement of the VBUS output voltage supported in the charger of QC2.0:
Pattern 1:DP=0.6V, DM=0V require that VBUS voltage is 5.0V;
Pattern 2:DP=3.3V, DM=0.6V require that VBUS voltage is 9.0V;
Mode 3: DP=0.6V, DM=0.6V require that VBUS voltage is 12V;
Pattern 4:DP=0.6V, DM=3.3V are undefined, retain following use;
Pattern 5:DP=3.3V, DM=3.3V require that VBUS voltage is 20V.
The present embodiment only needs 8 GPIO, 9 resistance (R7, R8 can omit as one sees fit), 1 switch module (as NMOS or NPN triode), a gating module (as two-way single pole double throw analog switch) and judge module (6 road voltage comparator) have coordinated charger end to the identification of the request of filling soon of QC2.0, apple, three magnitude mobile devices, namely can realize following function:
1. compare existing use two special chips realize on the USB interface of correspondence respectively QC2.0 fill soon or apple, Samsung the 10W method of filling soon, the advantage of the present embodiment is exactly can with at least above-mentioned two class fast charge modes of usb compatible.
2. the present embodiment can help each or unique apple at least front two of usb compatible mobile device market of QC2.0 charger, the 10W of Samsung fills soon.
Be understandable that, in Fig. 4, these magnitudes of voltage of 0.4V, 1.0V, 1.2V, 1.6V, 2.0V and 2.7V are partly or entirely replaced by other close magnitude of voltage accordingly.The resistance value of R1, R2, R3, R4, R5, R6, R7, R8 and R9 is different, but does not affect the functional of this circuit.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be do not depart from technical solutions of the utility model content, according to any simple modification that technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (11)
1. a charger (30), comprise: charge management circuit (31), processor (33) and USB interface (J1), described charge management circuit (31) is electrically connected described processor (33) and described USB interface (J1); It is characterized in that, described charge management circuit (31) comprises judge module (311), switch module (313), division module (315) and gating module (U3);
Described judge module (311) is serially connected between the input of described USB interface (J1) and described processor (33), for judging the charge type identifying described electronic equipment for described processor (33) to the electronic equipment being linked into described USB interface (J1);
Described switch module (313) is serially connected between the output of described USB interface (J1) and described processor (33), for adjusting first signal end (DP) of described USB interface (J1) and the output voltage of secondary signal end (DM) according to the control instruction of described processor (33); And
The control end of described gating module (U3), input and output are electrically connected to the output of described processor (33), the output of described division module (315) and described USB interface (J1) respectively, select different magnitudes of voltage to export the first signal end (DP) and the secondary signal end (DM) of described USB interface (J1) to for the control instruction according to described processor (33) from the output of described division module (315).
2. charger (30) as claimed in claim 1, it is characterized in that, described judge module (311) comprises the first comparing unit (U1A), the second comparing unit (U1B), the 3rd comparing unit (U1C), the 4th comparing unit (U1D), the 5th comparing unit (U2A) and the 6th comparing unit (U2B);
Described first comparing unit (U1A), described second comparing unit (U1B), one input of described 3rd comparing unit (U1C) and described 4th comparing unit (U1D) the electrical nodes connecing rear formation is electrically connected to the secondary signal end (DM) of described USB interface and another input is respectively electrically connected a reference voltage and described first comparing unit (U1A), described second comparing unit (U1B), the output of described 3rd comparing unit (U1C) and described 4th comparing unit (U1D) is electrically connected to the first input end (DM_04) of described processor (33) respectively, second input (DM_20), 3rd input (DM_10) and four-input terminal (DM_16), and
One input of described 5th comparing unit (U2A) and described 6th comparing unit (U2B) the electrical nodes connecing rear formation are electrically connected to first signal end (DP) of described USB interface and the output that another input is respectively electrically connected a reference voltage and described 5th comparing unit (U2A) and described 6th comparing unit (U2B) is electrically connected to the 5th input (DP_04) and the 6th input (DP_20) of described processor (33) respectively.
3. charger (30) as claimed in claim 1, is characterized in that, described switch module (313) is analog switch, transistor or triode;
If analog switch or transistor, then the control end of described analog switch or transistor is electrically connected to the output of described processor (33), and transmission ends is serially connected between the secondary signal end (DM) of described USB interface (J1) and earth terminal;
If triode, then the base stage of described triode is electrically connected to the output of described processor (33), and collector and emitter is electrically connected to secondary signal end (DM) and the earth terminal of described USB interface (J1) respectively.
4. charger (30) as claimed in claim 1, it is characterized in that, described division module (315) comprises the first resistance (R1), the second resistance (R2), the 3rd resistance (R3), the 4th resistance (R4), the 5th resistance (R5) and the 6th resistance (R6);
Described first resistance (R1) and described second resistance (R2), described 3rd resistance (R3) and described 4th resistance (R4), described 5th resistance (R5) and described 6th resistance (R6) are serially connected between high level and earth terminal respectively successively;
The string node of described first resistance (R1) and described second resistance (R2) and the string node of described 3rd resistance (R3) and described 4th resistance (R4) are electrically connected to the first input pin (D1+) and second input pin (D1-) of described gating module (U3) respectively; And
The string node of described 5th resistance (R5) and described 6th resistance (R6) is electrically connected to the 3rd input pin (D2+) and the 4th input pin (D2-) of described gating module (U3) respectively.
5. charger (30) as claimed in claim 1, it is characterized in that, described gating module (U3) comprises the first input pin (D1+), the second input pin (D1-), the 3rd input pin (D2+), the 4th input pin (D2-), the first output pin (D+), the second output pin (D-), the first control pin (SEL) and the second control pin (OE);
Described first controls pin (SEL) and second controls the control end that pin (OE) is electrically connected to described processor (33); Described first output pin (D+) and described second output pin (D-) are electrically connected to the first signal end (DP) and the secondary signal end (DM) of described USB interface (J1) respectively.
6. charger (30) as claimed in claim 5, it is characterized in that, described gating module (U3) is two-way single pole double throw analog switch.
7. charger (30) as claimed in claim 1, it is characterized in that, described USB interface (J1) comprises voltage end (VBUS), and described voltage end (VBUS) can provide the voltage of 5V, 9V, 12V and 20V.
8. charger (30) as claimed in claim 1, it is characterized in that, the first input end (DM_04) of described processor (33), the second input (DM_20), the 3rd input (DM_10), four-input terminal (DM_16), the 5th input (DP_04), the 6th input (DP_20), the first control end (FC_MODE) and the second control end (QC_SEL) are general object input/output port, and all can input or output high level and low level.
9. a charge management circuit (31), is characterized in that, comprising: judge module (311), switch module (313), division module (315) and gating module (U3);
Described judge module (311) is serially connected between the input of USB interface (J1) and processor (33), for judging the type identifying described electronic equipment for described processor (33) to the electronic equipment being linked into described USB interface (J1);
Described switch module (313) is serially connected between the output of described USB interface (J1) and described processor (33), for adjusting first signal end (DP) of described USB interface (J1) and the output voltage of secondary signal end (DM) according to the control instruction of described processor (33); And
The control end of described gating module (U3), input and output are electrically connected to the output of described processor (33), the output of described division module (315) and described USB interface (J1) respectively, select different magnitudes of voltage to export the first signal end (DP) and the secondary signal end (DM) of described USB interface (J1) to for the control instruction according to described processor (33) from the output of described division module (315).
10. charge management circuit (31) as claimed in claim 9, it is characterized in that, described judge module (311) comprises the first comparing unit (U1A), the second comparing unit (U1B), the 3rd comparing unit (U1C), the 4th comparing unit (U1D), the 5th comparing unit (U2A), the 6th comparing unit (U2B), the 7th resistance (R7) and the 8th resistance (R8);
Described first comparing unit (U1A), described second comparing unit (U1B), one input of described 3rd comparing unit (U1C) and described 4th comparing unit (U1D) the electrical nodes connecing rear formation is connected in series the secondary signal end (DM) to described USB interface successively with described 7th resistance (R7) and another input is respectively electrically connected a reference voltage and described first comparing unit (U1A), described second comparing unit (U1B), the output of described 3rd comparing unit (U1C) and described 4th comparing unit (U1D) is electrically connected to the first input end (DM_04) of described processor (33) respectively, second input (DM_20), 3rd input (DM_10) and four-input terminal (DM_16), and
Described 5th comparing unit, and described 6th comparing unit (U2A), (U2B) a input also connects the electrical nodes of rear formation and described 8th resistance, (R8) the first signal end to described USB interface is connected in series successively, and another input is respectively electrically connected a reference voltage and described 5th comparing unit (DP), and described 6th comparing unit (U2A), (U2B) output is electrically connected to described processor respectively, (33) the 5th input, (DP_04) the and six input, (DP_20).
11. charge management circuits (31) as claimed in claim 9, is characterized in that:
Described division module (315) comprises the first resistance (R1), the second resistance (R2), the 3rd resistance (R3), the 4th resistance (R4), the 5th resistance (R5) and the 6th resistance (R6); Described first resistance (R1) and described second resistance (R2), described 3rd resistance (R3) and described 4th resistance (R4), described 5th resistance (R5) and described 6th resistance (R6) are serially connected between high level and earth terminal respectively successively; The string node of described first resistance (R1) and described second resistance (R2) and the string node of described 3rd resistance (R3) and described 4th resistance (R4) are electrically connected to the first input pin (D1+) and second input pin (D1-) of described gating module (U3) respectively; And the string node of described 5th resistance (R5) and described 6th resistance (R6) is electrically connected to the 3rd input pin (D2+) and the 4th input pin (D2-) of described gating module (U3) respectively;
Described gating module (U3) comprises the first input pin (D1+), the second input pin (D1-), the 3rd input pin (D2+), the 4th input pin (D2-), the first output pin (D+), the second output pin (D-), the first control pin (SEL) and the second control pin (OE); Described first controls pin (SEL) and second controls the control end that pin (OE) is electrically connected to described processor (33); Described first output pin (D+) and described second output pin (D-) are electrically connected to the first signal end (DP) and the secondary signal end (DM) of described USB interface (J1) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420871474.9U CN204304549U (en) | 2014-12-26 | 2014-12-26 | Charger and charge management circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420871474.9U CN204304549U (en) | 2014-12-26 | 2014-12-26 | Charger and charge management circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204304549U true CN204304549U (en) | 2015-04-29 |
Family
ID=53110061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420871474.9U Expired - Fee Related CN204304549U (en) | 2014-12-26 | 2014-12-26 | Charger and charge management circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204304549U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305547A (en) * | 2015-10-29 | 2016-02-03 | 深圳市宏拓通达电子科技有限公司 | Intelligent adaptive rapid charging power bank |
| CN105891736A (en) * | 2016-05-25 | 2016-08-24 | 东莞博力威新能源有限公司 | QC2.0 fast charge detection circuit and detection method |
| CN106385074A (en) * | 2016-10-12 | 2017-02-08 | 成都芯源系统有限公司 | Charging mode automatic detection unit, charging circuit and related method |
| CN111245073A (en) * | 2020-03-31 | 2020-06-05 | 广州昂宝电子有限公司 | USB charging circuit and method, chip and charger |
| CN111431233A (en) * | 2020-04-01 | 2020-07-17 | 维沃移动通信有限公司 | Charging circuit and charging device |
| CN112803558A (en) * | 2021-04-09 | 2021-05-14 | 深圳英集芯科技股份有限公司 | Multi-quick-charging-protocol control circuit, control method, chip and electronic equipment |
| CN113538882A (en) * | 2021-07-16 | 2021-10-22 | 上海爻火微电子有限公司 | Signal transmission circuit and electronic equipment |
| CN114039400A (en) * | 2022-01-11 | 2022-02-11 | 荣耀终端有限公司 | Electronic equipment |
-
2014
- 2014-12-26 CN CN201420871474.9U patent/CN204304549U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305547A (en) * | 2015-10-29 | 2016-02-03 | 深圳市宏拓通达电子科技有限公司 | Intelligent adaptive rapid charging power bank |
| CN105891736A (en) * | 2016-05-25 | 2016-08-24 | 东莞博力威新能源有限公司 | QC2.0 fast charge detection circuit and detection method |
| CN106385074A (en) * | 2016-10-12 | 2017-02-08 | 成都芯源系统有限公司 | Charging mode automatic detection unit, charging circuit and related method |
| CN111245073A (en) * | 2020-03-31 | 2020-06-05 | 广州昂宝电子有限公司 | USB charging circuit and method, chip and charger |
| CN111431233A (en) * | 2020-04-01 | 2020-07-17 | 维沃移动通信有限公司 | Charging circuit and charging device |
| CN111431233B (en) * | 2020-04-01 | 2022-03-29 | 维沃移动通信有限公司 | Charging circuit and charging device |
| CN112803558A (en) * | 2021-04-09 | 2021-05-14 | 深圳英集芯科技股份有限公司 | Multi-quick-charging-protocol control circuit, control method, chip and electronic equipment |
| WO2022214083A1 (en) * | 2021-04-09 | 2022-10-13 | 深圳英集芯科技股份有限公司 | Multi-fast charging protocol control circuit, control method, chip, and electronic device |
| CN113538882A (en) * | 2021-07-16 | 2021-10-22 | 上海爻火微电子有限公司 | Signal transmission circuit and electronic equipment |
| CN113538882B (en) * | 2021-07-16 | 2022-12-13 | 上海爻火微电子有限公司 | Signal transmission circuit and electronic equipment |
| CN114039400A (en) * | 2022-01-11 | 2022-02-11 | 荣耀终端有限公司 | Electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204304549U (en) | Charger and charge management circuit | |
| CN106291210B (en) | USB interface detector, USB interface detection method, USB connector and electronic equipment | |
| EP3098931B1 (en) | Charging circuit and terminal | |
| CN101102119B (en) | A charging detection circuit of appliance device and charging detection method | |
| CN106301342B (en) | Interface circuit and terminal device | |
| CN101355259A (en) | Portable communication device and method for charging through discernment of charging cable | |
| CN204304536U (en) | Mobile electronic device and the peripheral discrete circuit of quick charge | |
| CN101232196A (en) | Control circuit of charging mode in USB charging stand and method thereof | |
| CN104239240A (en) | Electronic device with universal serial bus (USB) interface with integration function | |
| CN101383627A (en) | Device and method for terminal charger charging, USB charging and data communication | |
| JP2016531368A (en) | Apparatus and method for changing current limit value | |
| CN103762650B (en) | A kind of single USB port stand-by power supply based on equilibrium charging technology | |
| CN103326407A (en) | Battery charging source detection shifting device and method | |
| CN105680513B (en) | A kind of electronic installation with power supply circuit | |
| CN104915310A (en) | Electronic system | |
| US20150185817A1 (en) | Charging circuit for usb interface | |
| CN111537915A (en) | Broken string detection circuitry and treasured that charges of polymorphic type charging wire | |
| CN205863955U (en) | A kind of USB fast charging device of main frame front interface | |
| CN103001261B (en) | Universal charger with USB (universal serial bus) | |
| CN208656444U (en) | Wireless headset charging box with mobile phone charging function | |
| CN203800644U (en) | Charging Po and charging device | |
| CN207625314U (en) | A kind of double charging circuits compatible with DC USB | |
| CN101359836B (en) | Self-switching charging circuit | |
| CN103108081A (en) | Subscriber identity module (SIM) card detection control device of mobile terminal | |
| CN106774596B (en) | A kind of electric power management circuit, electronic equipment and control method of electronic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160816 Address after: 518000 Guangdong city of Shenzhen province Qianhai Shenzhen Hong Kong cooperation zone before Bay Road No. 1 building 201 room A Patentee after: SHENZHEN MACASMART SYSTEM Co.,Ltd. Address before: 200126 Shanghai city Pudong New Area Gaoqing road 2878 Lane 66 building room 1001 Patentee before: Luo Yongjin |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |