CN106033908A - Power supply circuit and working method thereof and electronic equipment - Google Patents

Abstract

The invention discloses a power supply circuit and a working method thereof and electronic equipment. The power supply circuit is applied to the electronic equipment, the input voltage needed when the power supply circuit is charged is different from the output voltage needed when the power supply circuit is discharged, and the power supply circuit comprises an input end, an output end, two or more battery packs and two or more switches; the input end is used for being connected with an external power supply and charging the battery packs, and the output end is used for supplying power to the electronic equipment; each battery pack comprises more than one rechargeable battery; the switches are used for switching the connection relation of the battery packs between series connection and parallel connection.

Description

A kind of power circuit and method of work, electronic equipment

Technical field

The present invention relates to electronic technology, particularly relate to a kind of power circuit and method of work, electronic equipment.

Background technology

At present, battery performance is the key factor that people buy electronic equipment, and battery durable power and filling The electricity time is the important performance indexes of battery performance, and wherein, popular says, battery durable power refers to that one piece is filled The time that the battery of full electricity can use under given conditions；And the charging interval refers to do not have electricity by one piece Battery be full of the required time.In order to obtain preferable battery durable power, production firm is typically by each The method of kind increases the battery capacity of electronic equipment and reaches to extend the purpose of battery durable power.Battery capacity (or Person is rated capacity), refer to the charge capacity of battery, in other words, the electricity that battery is released under certain condition Amount, it is seen then that battery capacity is exactly the product of electric current and time, wherein the unit of electric current is that ampere is called for short peace (A), The unit of electric current can also use milliampere (mA), and the unit of time is hour (h), then battery capacity Unit is ampere-hour (A.h) or Milliampere Hour (mA.h), and battery capacity can also use coulomb (C) Represent, wherein 1A.h=3600C.Certain condition described above refers to discharge rate, temperature, humidity etc. Under conditions of Ding, such as temperature is 20 degrees Celsius when.

Generally, people are held by the battery getting up polylith cell parallel to reach to improve electronic equipment The purpose of amount.But when battery capacity increases, the charging interval of battery will necessarily be elongated, how to make Control the charging interval while battery capacity increases and become the problem needing solution badly.

Summary of the invention

In view of this, the embodiment of the present invention provides one for solving at least one problem present in prior art Plant power circuit and method of work, electronic equipment, by increasing capacitance it is possible to increase battery capacity increases and shortens the charging interval.

The technical scheme of the embodiment of the present invention is achieved in that

First aspect, the embodiment of the present invention provides a kind of power circuit, defeated when charging of described power circuit Entering voltage different from the described power circuit output voltage when electric discharge, described power circuit includes: input, Outfan, many Battery packs group and multiple switch, wherein,

Described input, is used for connecting external power source and charging to described many Battery packs group；

Described outfan, for being powered to described electronic equipment；

Described many Battery packs group includes two groups and set of cells more than two, wherein, in described many Battery packs group Each Battery pack group all include one piece and more than one piece rechargeable battery；

The plurality of switch includes two and plural switch；The plurality of switch, is used for so that described Annexation between many Battery packs group is changed between in parallel in series connection.

Second aspect, the embodiment of the present invention provides the power circuit of a kind of above-mentioned first aspect embodiment offer Method of work, it is characterised in that described method includes:

The positive pole of the 1st Battery pack group in N Battery pack group in described power circuit is connected described power circuit Input；N is the integer more than or equal to 2；

The negative pole of the jth Battery pack group in described N Battery pack group is connected the in described N Battery pack group (j+1) positive pole of Battery pack group, described j is less than or equal to (N-1) more than or equal to 1；

The negative pole of the N Battery pack group in described N Battery pack group is connected the ground of described power circuit.

The third aspect, the embodiment of the present invention provides the power circuit of a kind of above-mentioned first aspect embodiment offer Method of work, it is characterised in that described method includes:

The positive pole of the 1st Battery pack group in described N Battery pack group is connected the N in described N Battery pack group The positive pole of Battery pack group；

The negative pole of (j-1) the Battery pack group in described N Battery pack group is connected in described N Battery pack group The negative pole of the i-th Battery pack group, described j is more than or equal to 2 and is less than or equal to the integer of (N-1)；

The negative pole of the N Battery pack group in described N Battery pack group is connected the ground of described power circuit.

Fourth aspect, the embodiment of the present invention provides a kind of electronic equipment, and described electronic equipment includes above-mentioned first The power circuit that aspect embodiment provides, this electronic equipment also includes the first connection unit, the second connection unit Unit is connected, wherein with the 3rd:

Described first connects unit, for by the 1st Battery pack group in N Battery pack group in described power circuit Positive pole connect described power circuit input；N is the integer more than or equal to 2；

Described second connects unit, for being connected by the negative pole of the jth Battery pack group in described N Battery pack group The positive pole of (j+1) the Battery pack group in described N Battery pack group, described j is less than or equal to more than or equal to 1 (N-1)；

Described 3rd connects unit, for being connected by the negative pole of the N Battery pack group in described N Battery pack group The ground of described power circuit.

5th aspect, the embodiment of the present invention provides a kind of electronic equipment, and described electronic equipment includes above-mentioned first Aspect embodiment provide power circuit, this electronic equipment also include four connection unit, the 5th connect unit and 6th connects unit, wherein:

Described 4th connects unit, for being connected by the positive pole of the 1st Battery pack group in described N Battery pack group The positive pole of the N Battery pack group in described N Battery pack group；

Described 5th connects unit, for by the negative pole of (j-1) the Battery pack group in described N Battery pack group Connecting the negative pole of the i-th Battery pack group in described N Battery pack group, described j is for more than or equal to 2 and be less than Integer in (N-1)；

Described 6th connects unit, for being connected by the negative pole of the N Battery pack group in described N Battery pack group The ground of described power circuit.

The power circuit of embodiment of the present invention offer and method of work, electronic equipment, wherein, described power supply The circuit input voltage when charging is different from the described power circuit output voltage when electric discharge, described power supply Circuit includes: input, outfan, many Battery packs group and multiple switch, and wherein, described input is used for Connecting external power source and charge to described many Battery packs group, described outfan is for carrying out to described electronic equipment Power supply, described many Battery packs group includes two groups and set of cells more than two, and the plurality of switch includes two And plural switch；Each Battery pack group in described many Battery packs group all includes more than one piece fill The battery of electricity；The plurality of switch, for make annexation between described many Battery packs group series connection with Change between parallel connection.So, it is possible to increase battery capacity increase and shorten the charging interval.

Accompanying drawing explanation

Fig. 1-1 is the scene schematic diagram one in correlation technique；

Fig. 1-2 is the scene schematic diagram two in correlation technique；

Fig. 1-3 is the composition structural representation of the embodiment of the present invention one power circuit；

Fig. 1-4 is the composition structural representation of the embodiment of the present invention one first switch；

Connection knot when Fig. 1-5 is for being charged the power circuit shown in Fig. 1-3 in the embodiment of the present invention one Structure schematic diagram；

The stream of electric current when Fig. 1-6 is for being charged the power circuit shown in Fig. 1-3 in the embodiment of the present invention one To schematic diagram；

Fig. 1-7 for the power circuit shown in Fig. 1-3 in the embodiment of the present invention one electric discharge time attachment structure show It is intended to；

Fig. 1-8 shows for the flow direction of electric current when electric discharge of the power circuit shown in Fig. 1-3 in the embodiment of the present invention one It is intended to；

Fig. 2-1 is the composition structural representation one of the embodiment of the present invention two power circuit；

Fig. 2-2 is the composition structural representation two of the embodiment of the present invention two power circuit；

Fig. 3-1 is the composition structural representation one of the embodiment of the present invention three power circuit；

Fig. 3-2 is the composition structural representation two of the embodiment of the present invention three power circuit；

Fig. 3-3 is the composition structural representation three of the embodiment of the present invention three power circuit；

Fig. 3-4 is the composition structural representation four of the embodiment of the present invention three power circuit；

Fig. 4-1 is a kind of physical circuit figure of Fig. 2-1 in the embodiment of the present invention one；

Fig. 4-2 is a kind of implementation schematic diagram of Fig. 4-1 in the embodiment of the present invention；

Fig. 4-3 for the power circuit shown in Fig. 4-2 electric discharge time current direction schematic diagram；

Current direction schematic diagram when Fig. 4-4 is for discharging to the power circuit shown in Fig. 4-2；

Fig. 5-1 is the structural representation one of the embodiment of the present invention five power circuit；

Fig. 5-2 is the structural representation two of the embodiment of the present invention five power circuit；

Fig. 6 is the schematic diagram of the embodiment of the present invention six power circuit.

Detailed description of the invention

The technical solution of the present invention is further elaborated with specific embodiment below in conjunction with the accompanying drawings.

Embodiment one

The embodiment of the present invention provides a kind of power circuit, and this power circuit can apply in electronic equipment, institute State electronic equipment and refer to the equipment that all kinds of needs are powered, wherein, refer in particular to moveable terminal and (be called for short and move Dynamic terminal) such as notebook computer, smart mobile phone, electric automobile, electric bicycle, personal digital assistant, Car-mounted terminal such as in-car TV, navigator, music player such as (MP3, Music Player 3), video are broadcast Put device, panel computer, online notebook (Netbook is called for short net book) etc., this kind of movable termination one As in addition to being powered by external AC power supply, it is also possible to be powered by built-in power circuit； Represent as a example by electronic equipment by panel computer, when surrounding does not has an alternating current, and the charged electrical in panel computer The when of Chi You electricity, panel computer can use the rechargeable battery of himself to power.

Power circuit generally comprises charging circuit and discharge circuit, and wherein charging circuit is for built-in battery Group or battery are charged, and discharge circuit is for making built-in set of cells or battery discharge with to electronic equipment Main functionality parts such as display screen is powered.Wherein, during being embodied as, charging circuit and putting The circuit devcie of electricity circuit usually share common, in other words, charging circuit and discharge circuit are not strict Differentiation in meaning, aforesaid charging circuit and discharge circuit are only a kind of divisions in logic.

The power circuit that the present embodiment provides is in addition to for above-mentioned electronic equipment, it is also possible to be used for being typically filled with Electricity equipment, such as the charger baby (Power Banks) for being charged to mobile terminal, accumulator (Storage Battery) equipment, wherein: accumulator equipment refers to that a class is specifically designed to setting that electronic equipment is powered Standby, accumulator equipment generally comprises the accumulator as main body, charging circuit and discharge circuit, wherein, stores The chemical energy that internal storage battery stores can be converted into electric energy by discharge circuit when electric discharge by battery apparatus, with Just the electronic equipment supplying outside uses；External power supply can be connected by charging circuit after discharge to charge Mode make internal storage battery active substance regenerate, the electric energy i.e. outside inputted by charging circuit is stored again For chemical energy, when needs discharge, again battery chemistries can be converted to electric energy by discharge circuit.

The power circuit in the embodiment of the present invention input voltage when charging and described power circuit are when electric discharge Output voltage different；Assume that power circuit can be divided into charging circuit and discharge circuit, then power circuit Charging when, need that charging circuit is connected external power source by electric pressure converter and such as connect unidirectional current, Input voltage when so charging refers to the voltage between charging circuit and electric pressure converter, in other words, electricity The source circuit input voltage when charging may refer to the output voltage of electric pressure converter；Certainly, charging circuit External power source can also be directly connected to, then the power circuit input voltage when charging is exactly external power source Output voltage.

The power circuit input voltage when charging in the brightest embodiment of the present invention, when surrounding has During alternating current, as Figure 1-1, panel computer 13 is connected to the socket 11 of alternating current by charger 12 On.When being fitted without rechargeable battery on panel computer 13, then panel computer 13 directly uses alternating current Power supply.When being provided with rechargeable battery on panel computer 13, and when rechargeable battery is not filled, it is also possible to make With alternating current, rechargeable battery is charged.In Fig. 1-1, a kind of electric pressure converter of charger, For the voltage of alternating current is converted to panel computer can voltage, with the alternating current of CONTINENTAL AREA OF CHINA be Example, charger 12 is connected on socket 11, and the input voltage of charger 12 is 220 volts (V), and The output voltage of charger 12 about between 10V to 20V, different production firms, panel computer The output voltage of charger has the biggest difference, but in general, the order of magnitude of output voltage is much the same. In this example, the input voltage of charger 12 is the voltage that 220V is because the civil power (alternating current) of China's Mainland For 220V.

Output electric current at charger is supplied to rechargeable battery by charging circuit, as shown in Figure 1-2, There is also charging circuit 22 between output and the rechargeable battery 210 of charger 12, set to improve electronics Standby battery capacity, the most all uses two rechargeable batteries (hereinafter referred to as battery) to supply to electronic equipment Electricity, after a rechargeable battery is finished, is then used by another battery and comes to power electronic equipment, two electricity Using between pond and be connected in parallel to improve battery capacity, such user can use long that electronic equipment uses Point, is unlikely to also how not use and must be charged to electronic equipment.

In present example, it is assumed that power circuit can be divided into charging circuit and discharge circuit, power circuit exists The when of electric discharge, make built-in set of cells or battery discharge with to the main body merit of electronic equipment by discharge circuit Can be powered by parts such as display screen, then the described power circuit output voltage when electric discharge refers to electric discharge electricity The output voltage on road.

Fig. 1-3 is the composition structural representation of the embodiment of the present invention one power circuit, as Figure 1-3, and should Power circuit includes: input (input) 110, outfan (output) 120, many Battery packs group (B1, B2) 130 and multiple switch (Switch, is abbreviated as SW, such as SW1 and SW2) 140, wherein,

Described input 110, is used for connecting external power source and charging to described many Battery packs group 130；Wherein, External power source can be alternating current or other accumulator equipment etc..

Described outfan 120, for being powered to described electronic equipment；Here, specifically refer to electronics The power consumption body of equipment is powered, such as, and processor on the display of electronic equipment, mainboard, memorizer etc..

Described many Battery packs group 130 includes two groups and set of cells more than two, wherein, described many Battery packs Each Battery pack group in group all includes more than one piece rechargeable battery；

The plurality of switch 140 includes two and plural switch；The plurality of switch, be used for so that Annexation between described many Battery packs group is changed between in parallel in series connection.

In the embodiment of the present invention, when each Battery pack group in described many Battery packs group all includes two pieces and two pieces Above when rechargeable battery, in each Battery pack group in described many Battery packs group, battery uses identical Connected mode.Such as in Fig. 1-3, each Battery pack group all includes plural battery, and each group electric Battery in the group of pond all uses the connected mode of parallel connection；Certainly, those skilled in the art can also be by each Battery in Battery pack group uses the connected mode of series connection, further, it is also possible to use series connection and mixing in parallel Connected mode.

In the embodiment of the present invention, each switch in the plurality of switch is respectively provided with the first end, the second end and Three ends, the first end of each of which switch can connect with the 3rd end of the second end maybe this switch of this switch；

It should be noted that figure 1 above-3 is schematic diagram, the device in Fig. 1-3 is only for device is described Effect, can use other components and parts that can play phase same-action to replace during concrete enforcement. Such as, from Fig. 1-3 it can be seen that the switch 140 embodiment of the present invention is single-pole double-throw switch (SPDT) (Single Pole Double Throw, SPDT), single-pole double-throw switch (SPDT) generally comprises three terminals, one of them terminal For not moved end, remaining two terminals are movable end.As a example by switch SW1, as Figure 1-4, switch The not moved end (the first end) of SW1 letter a represents, two movable end are respectively with (the second end) b and (the Three ends) c represents, (the first end a) can not connect moved end (the second end b) or (the 3rd end c) in moved end.

Actually it is relatively difficult to integrated due to hilted broadsword crosspointer switch, and the volume ratio of power circuit can be caused huger Greatly, therefore during being embodied as, the most do not use double-point double-throw switch and use audion, low The components and parts such as on-load switch (Load switch), field effect transistor and the diode of load replace.

In the embodiment of the present invention, described power circuit can also include earth terminal (GND) 181, is used for making Power circuit connects the earth, further, in order to prevent electromagnetic interference from can also increase at earth terminal 181 Noise killer, such as, connect an electric capacity at earth terminal 181.

In the embodiment of the present invention, the plurality of switch 130, when described power circuit is charged, Described many Battery packs group is connected；And described power circuit is when electric discharge, by described many Battery packs group Carry out parallel connection.Illustrate below by way of Fig. 1-3.

Connection knot when Fig. 1-5 is for being charged the power circuit shown in Fig. 1-3 in the embodiment of the present invention one Structure schematic diagram, electricity when Fig. 1-6 is for being charged the power circuit shown in Fig. 1-3 in the embodiment of the present invention one That flows flows to schematic diagram, and as shown in Fig. 1-5 and Fig. 1-6, when being charged power circuit, first opens The the first end a closing 140 (SW1) connects the second end b of the first switch SW1, wherein, the first switch SW1 Second end b connect input 110, first switch SW1 the second end a connect the first set of cells (B1) Positive pole；The second end b of second switch 140 (SW2) the first end a connecting valve SW2, wherein, the The second end a of two switch SW2 connects the negative pole of the first set of cells B1, the second end b of second switch SW2 Connect outfan 120.As such, it is possible to the first set of cells B1 and the second set of cells B2 are together in series, as This, the flow direction of electric current is: carry out voltage conversion from the alternating current on socket 11 through charger 12 laggard Enter input 110, then enter the positive pole of the first set of cells B1 from input 110, then from the first battery The negative pole of group B1 enters the positive pole of the second set of cells B2, then accesses big from the negative pole of the second set of cells B2 Ground.

Fig. 1-7 for the power circuit shown in Fig. 1-3 in the embodiment of the present invention one electric discharge time attachment structure show Being intended to, Fig. 1-8 is the flow direction of electric current when electric discharge of the power circuit shown in Fig. 1-3 in the embodiment of the present invention one Schematic diagram, as shown in Fig. 1-7 and Fig. 1-8, during power circuit electric discharge, the of the first switch 140 (SW1) One end a connects the second end c of the first switch SW1, and wherein, the second end c of the first switch SW1 connects defeated Going out end 120, the second end a of the first switch SW1 connects the positive pole of the first set of cells (B1)；Second switch The second end c of 140 (SW2) first end a connecting valve SW2, wherein, the second of second switch SW2 End a connects the negative pole of the first set of cells B1, and the second end c of second switch SW2 connects earth terminal 181. As such, it is possible to the first set of cells B1 and the second set of cells B2 are together in parallel, so, the flow direction of electric current is: Current direction outfan 120 from the first set of cells B1 positive pole；Electricity from the second set of cells B2 positive pole Stream flows to output 120.

Embodiment two

Based on aforesaid embodiment one, the embodiment of the present invention provides a kind of power circuit, and described power circuit exists Input voltage during charging is different from the described power circuit output voltage when electric discharge.

Fig. 2-1 is the composition structural representation one of the embodiment of the present invention two power circuit, as shown in Fig. 2-1, This power circuit includes: input 110, outfan 120, many Battery packs group 130, multiple switch 140, Controller (OR Controller) 150 and earth terminal (GND) 181, wherein,

Described input 110, is used for connecting external power source and charging to described many Battery packs group；

Described outfan 120, for being powered to described electronic equipment；

Described many Battery packs group 130 includes two groups and set of cells more than two, wherein, described many Battery packs Each Battery pack group in group all includes more than one piece rechargeable battery；

The plurality of switch 140 includes two and plural switch；The plurality of switch, be used for so that Annexation between described many Battery packs group is changed between in parallel in series connection.

Described earth terminal 181, is used for making power circuit connect the earth.

Described controller 150, for preventing described two groups and set of cells more than two mutually to charge (to filling).

When power circuit includes two Battery pack groups, as shown in Fig. 2-1, described controller 150 is positioned at described The positive pole of the first Battery pack group in two Battery pack groups is with the second Battery pack group in described two Battery pack groups just Between pole.During implementing, described controller can use diode to realize, such as Fig. 1-4 Shown in, in order to prevent the first set of cells and the second set of cells to filling, can first switch SW1 the 3rd end Connect between c with outfan 120 first diode 151, in second end b and the output of second switch SW2 Hold the second diode 152 of connecting between 120.Power circuit shown in Fig. 2-1 make use of diodes in parallel Characteristic, when in the first set of cells and the second set of cells, which voltage ratio is higher, that circuit that voltage is high On diode will turn on；And the diode on relatively low that road of voltage will wait until that another road is than it Just can turn on time low, so, the circuit at the first set of cells place and the circuit at the second set of cells place are to continue Constantly automatically switch ground, so can avoid cause owing to voltage is inconsistent in many Battery packs group to fill mutually Thus affect the life-span of battery and cause safety problem.

It should be noted that controller 150 can not also use the diode in Fig. 2-1, and use three poles Pipe coordinates the form of software, so can also just control that conducting that voltage in many Battery packs group is high, but Using diode to realize controller 150 is a kind of effective, low cost and the mode being easily achieved.

In the power circuit shown in Fig. 1-8, owing to power circuit being not provided with controller, then work as electricity During source circuit electric discharge, after the current direction outfan 120 of the first set of cells B1 positive pole, it is likely that no It is the power-consuming component flowing to electronic equipment, but flows to the positive pole of the second set of cells B2；Correspondingly, from After the current direction outfan 120 of the second set of cells B2 positive pole, it is likely that be not the consumption flowing to electronic equipment Electricity parts, but flow to the positive pole of the first set of cells B1, i.e. the first set of cells and the second set of cells may Exist situation about filling.But in the power circuit as shown in Fig. 2-2, when power circuit discharges, by In the existence of the second diode 152, after the current direction outfan 120 of the first set of cells B1 positive pole, Intelligence flows to the power-consuming component of electronic equipment；Accordingly, due to the existence of the first diode 151, from After the current direction outfan 120 of two set of cells B2 positive poles, also can only flow to the power-consuming component of electronic equipment, Visible, the first diode 151 and the second diode 152 can be effectively prevented the first set of cells B1 and The generation to the situation of filling between two set of cells B2.

Embodiment three

Based on aforesaid embodiment one, the embodiment of the present invention provides a kind of power circuit, and described power circuit exists Input voltage during charging is different from the described power circuit output voltage when electric discharge.This power circuit includes: N Battery pack group, N number of first switch and (N-2) individual second switch, described N is whole more than or equal to 2 Number, wherein:

Each first switch in described N number of first switch is respectively provided with the first end a, the second end b and the 3rd End c (as Figure 1-4), the first end a of each the first switch in wherein said N number of first switch Connect with self the second end b or the 3rd end c of self.

The positive pole of the 1st Battery pack group in described N Battery pack group connects in described N number of first switch the 1st First end of the first switch, the second end of described 1st first switch connects the input of described power circuit, The outfan of power circuit described in the three-terminal link of described 1st first switch；

The negative pole of the i-th Battery pack group in described N Battery pack group connects the first of (i+1) individual first switch End, second end of described (i+1) individual first switch connects the positive pole of (i+1) Battery pack group, described The three-terminal link ground of (i+1) individual first switch, the positive pole of (i+1) Battery pack group and described power supply The connection i-th second switch of the outfan of circuit；Described i is less than or equal to (N-2) more than or equal to 1；

The negative pole of (N-1) the Battery pack group in described N Battery pack group connects the of n-th the first switch One end, the second end of described n-th the first switch connects the positive pole of N Battery pack group, described n-th The three-terminal link ground of the first switch；

The positive pole of N Battery pack group connects the outfan of described power circuit.

Below N is carried out assignment, the technical scheme that the embodiment of the present invention three is provided is described.Work as N=2 Time, as Figure 1-3, the embodiment of the present invention three provide power circuit include: 2 Battery pack groups (B1 and B2), 2 first switch (SW1 and SW2) and 0 second switch, wherein:

Described 2 first switch in each first switch (SW1 or SW2) be respectively provided with the first end a, Second end b and the 3rd end c, the first end a of each the first switch in wherein said N number of first switch Connect with self the second end b or the 3rd end c of self.

The positive pole of the 1st Battery pack group (B1) in described 2 Battery pack groups connects in described 2 first switches First end a of the 1st first switch (SW1), the second end b of described 1st first switch (SW1) Connecting the input 110 of described power circuit, the 3rd end c of described 1st first switch (SW1) is even Connect the outfan 120 of described power circuit；

The negative pole of the 1st Battery pack group (B1) in described 2 Battery pack groups connects the 2nd first switch (SW2) The first end a, described 2nd first switch (SW2) second end b connect the 2nd Battery pack group (B2) Positive pole, described 2nd first switch (SW2) the 3rd end c connect ground (earth terminal 181)；

The positive pole (B2) of the 2nd Battery pack group connects the outfan 120 of described power circuit, the 2nd Battery pack The negative pole of group (B2) connects the ground (earth terminal 181) of described power circuit.

As N=3, as shown in figure 3-1, the power circuit that the embodiment of the present invention three provides includes: 3 groups of electricity Pond group, 3 the first switch (SW4, SW3 and SW2) and 1 second switches (SW1), wherein:

Each first switch (SW4, SW3 or SW2) in described 3 first switches is respectively provided with first End a, the second end b and the 3rd end c (as shown in figure 3-1), each in wherein said 3 first switches First end a of individual first switch connects with self the second end b or the 3rd end c of self.

The positive pole of the 1st Battery pack group (B1) in described 3 Battery pack groups connects in described 3 first switches First end a of the 1st first switch (SW4), the second end b of described 1st first switch (SW4) Connecting the input 110 of described power circuit, the 3rd end c of described 1st first switch (SW4) is even Connect the outfan 120 of described power circuit.

The negative pole of the 1st Battery pack group (B1) in described 3 Battery pack groups connects the 2nd first switch (SW3) The first end a, described 2nd first switch (SW3) second end b connect the 2nd Battery pack group (B2) Positive pole, described 2nd first switch (SW3) the 3rd end c connect ground, the 2nd Battery pack group (B2) Positive pole and the outfan 120 of described power circuit between be connected the 1st second switch (SW1).

The negative pole of the 2nd Battery pack group (B2) in described 3 Battery pack groups connects the 3rd first switch (SW2) The first end a, described 3rd first switch (SW2) second end b connect the 3rd Battery pack group (B3) Positive pole, described 3rd first switch (SW2) the 3rd end c connect ground；

The positive pole of the 3rd Battery pack group (B3) connects the outfan 120 of described power circuit, the 3rd Battery pack The negative pole of group (B3) connects ground.

It should be noted that second switch can be different, such as Fig. 3-1 from the first switch in the embodiment of the present invention Shown in, described second switch can be single switch, and the first switch is single-pole double-throw switch (SPDT).Second switch Can be identical with the first switch, as shown in figure 3-2, second switch can also be single-pole double-throw switch (SPDT).

As N=4, as shown in Fig. 3-3, the power circuit that the embodiment of the present invention three provides includes: 4 groups of electricity Pond group (B1, B2, B3 and B4), 4 the first switches (SW6, SW5, SW3 and SW2) and 2 Individual second switch (SW1 and SW4), wherein:

Each first switch (SW6, SW5, SW3 and SW2) in described 4 first switches all has There are the first end a, the second end b and the 3rd end c (as shown in Fig. 3-3), in wherein said 4 first switches Each first switch first end a connect with self the second end b or the 3rd end c of self.

The positive pole of the 1st Battery pack group (B1) in described 4 Battery pack groups connects in described 4 first switches First end a of the 1st first switch (SW6), the second end b of described 1st first switch (SW6) Connecting the input 110 of described power circuit, the 3rd end c of described 1st first switch (SW6) is even Connect the outfan 120 of described power circuit.

The negative pole of the 1st Battery pack group (B1) in described 4 Battery pack groups connects the 2nd first switch (SW5) The first end a, described 2nd first switch (SW5) second end b connect the 2nd Battery pack group (B2) Positive pole, described 2nd first switch (SW5) the 3rd end c connect ground, the 2nd Battery pack group (B2) Positive pole and the outfan 120 of described power circuit between be connected the 1st second switch (SW4).

The negative pole of the 2nd Battery pack group (B2) in described 4 Battery pack groups connects the 3rd first switch (SW3) The first end a, described 3rd first switch (SW3) second end b connect the 3rd Battery pack group (B3) Positive pole, described 3rd first switch (SW3) the 3rd end c connect ground, the 3rd Battery pack group (B3) Positive pole and the outfan 120 of described power circuit between be connected the 2nd second switch (SW1).

The negative pole of the 3rd Battery pack group (B3) in described 4 Battery pack groups connects the 4th first switch (SW2) The first end a, described 4th first switch (SW2) second end b connect the 4th Battery pack group (B4) Positive pole, described 4th first switch (SW2) the 3rd end c connect ground；

The positive pole of the 4th Battery pack group (B4) connects the outfan 120 of described power circuit, the 4th Battery pack The negative pole of group (B4) connects ground.

As N=5, as shown in Figure 3-4, the power circuit that the embodiment of the present invention three provides includes: 5 groups of electricity Pond group (B1, B2, B3, B4 and B5), 5 first switches (SW8, SW7, SW5, SW3 and SW2) and 3 second switches (SW6, SW4 and SW1), wherein:

Each first switch (SW8, SW7, SW5, SW3 and SW2) in described 5 first switches It is respectively provided with the first end a, the second end b and the 3rd end c (as shown in Figure 3-4), opens for wherein said 5 first First end a of each of the Central Shanxi Plain the first switch connects with self the second end b or the 3rd end c of self.

The positive pole of the 1st Battery pack group (B1) in described 5 Battery pack groups connects in described 5 first switches First end a of the 1st first switch (SW8), the second end b of described 1st first switch (SW8) Connecting the input 110 of described power circuit, the 3rd end c of described 1st first switch (SW8) is even Connect the outfan 120 of described power circuit.

The negative pole of the 1st Battery pack group (B1) in described 8 Battery pack groups connects the 2nd first switch (SW7) The first end a, described 2nd first switch (SW7) second end b connect the 2nd Battery pack group (B2) Positive pole, described 2nd first switch (SW7) the 3rd end c connect ground, the 2nd Battery pack group (B2) Positive pole and the outfan 120 of described power circuit between be connected the 1st second switch (SW6).

The negative pole of the 2nd Battery pack group (B2) in described 5 Battery pack groups connects the 3rd first switch (SW5) The first end a, described 3rd first switch (SW5) second end b connect the 3rd Battery pack group (B3) Positive pole, described 3rd first switch (SW5) the 3rd end c connect ground, the 3rd Battery pack group (B3) Positive pole and the outfan 120 of described power circuit between be connected the 2nd first switch (SW4).

The negative pole of the 3rd Battery pack group (B3) in described 5 Battery pack groups connects the 4th first switch (SW3) The first end a, described 4th first switch (SW3) second end b connect the 4th Battery pack group (B4) Positive pole, described 4th first switch (SW3) the 3rd end c connect ground, the 4th Battery pack group (B4) Positive pole and the outfan 120 of described power circuit between be connected the 3rd first switch (SW1).

The negative pole of the 4th Battery pack group (B4) in described 5 Battery pack groups connects the 5th first switch (SW2) The first end a, described 5th first switch (SW2) second end b connect the 5th Battery pack group (B5) Positive pole, described 5th first switch (SW2) the 3rd end c connect ground；

The positive pole of the 5th Battery pack group (B5) connects the outfan 120 of described power circuit, the 5th Battery pack The negative pole of group (B5) connects ground.

When those skilled in the art can draw N=6 and more than 6 according to the description above, power circuit shows It is intended to, therefore, repeats no more.Fig. 1-3, Fig. 3-1, Fig. 3-3 and Fig. 3-4 show as N=2 to 5 The schematic diagram of power circuit, by Fig. 1-3, Fig. 3-1 to Fig. 3-4 it can be seen that work as and fill power circuit During electricity, many Battery packs composition series connection (Serial) in power circuit connect, when power circuit discharges, and electricity Many Battery packs composition parallel-connection structure in source circuit；Therefore, above-mentioned power circuit is also called xS power circuit, Wherein x represents numeral, and S represents series connection；Accordingly, the power circuit shown in Fig. 1-3 is referred to as 2S power supply electricity Road, the power circuit shown in Fig. 3-1 is referred to as 3S power circuit, the correspondence respectively of the power circuit shown in Fig. 3-3 Ground is referred to as 4S power circuit, and the power circuit shown in Fig. 3-4 is respectively correspondingly referred to as 5S power circuit.? In above-mentioned xS power circuit, the chemical property of battery block is typically identical, such as the battery block in xS is permissible All using NI-G (Ni-Cd) battery, the battery block in xS can all use Ni-MH battery, the battery in xS Block can all use NI-G lithium ion battery etc..

In above-mentioned xS power circuit, if the connected mode that each Battery pack group uses is identical, the most often One set of cells all uses parallel, then this power circuit can be designated as xSxP, wherein lower case X represents numeral, and capital S represents series connection as mentioned above, and capital P represents in parallel；For another example, often One set of cells all uses the connected mode of series connection, then this power circuit can be designated as xSxS, wherein small letter Female x represents numeral, and capital S represents series connection as mentioned above.Such as, when seeing that circuit symbol is 2S2P Power circuit, from 3S2P, this power circuit uses being connected in series of 3 Battery pack groups when charging Mode, and in each set of cells, include the battery block that 2 pieces of employings are connected in parallel.Based on this, above-mentioned Fig. 1-3, Fig. 3-1 can be designated as xSxP circuit to the power circuit shown in Fig. 3-4.

Embodiment four

The power circuit diagram of several xS is shown based on aforesaid embodiment, a kind of concrete circuit is given below Figure, Fig. 4-1 is a kind of physical circuit figure of Fig. 2-1 in the embodiment of the present invention one, the 3rd switch in Fig. 4-1 (ON/OFF) employing software and/or hardware can be coordinated to control conducting and block, and Fig. 4-2 is the present invention A kind of implementation schematic diagram of Fig. 4-1 in embodiment, as shown in Fig. 4-1 and Fig. 4-2, in Fig. 1-3 One first switch SW1 and second first switch SW2 uses Metal-oxide-semicondutor type field to imitate (Metal-Oxide-Semiconductor Field-Effect-Transistor, MOSFET) and diode should be managed Realize.Wherein, first first switch SW1 uses two MOSFET, numbering to be respectively MOSFET#1 With MOSFET#3, second first switch SW2 are also adopted by two MOSFET, numbering is respectively MOSFET#2 and MOSFET#4, and MOSFET#1 and diode be used for realizing first first switch Conducting between the first end a and the second end b of self of SW1 and blocking-up；MOSFET#3 and diode are used Conducting between the first end a and the second end c of self realizing first first switch SW1 and blocking-up； MOSFET#2 and diode are for realizing the first end a and self second of first first switch SW2 Conducting between end b and blocking-up；MOSFET#4 and diode are used for realizing first first switch SW2 The first end a and the second end c of self between conducting and blocking-up.

When the first end a in first first switch SW1 connects self the second end b, the can be passed through The 3rd switch (ON/OFF) between the first end a and the second end b of self in one first switch SW1 Realize conducting, when the first end a in first first switch SW1 need not connect the second end b of self Time, can be by the 3rd between the first end a and the second end b of self in first first switch SW1 Switch (ON/OFF) realizes blocking；When the first end a in first first switch SW1 need not even When meeting the 3rd end c of self, can be by the first end a in first first switch SW1 and self the The 3rd switch (ON/OFF) between three end c realizes blocking；When in first first switch SW1 When first end a needs the 3rd end c connecting self, can be by first in first first switch SW1 The 3rd switch (ON/OFF) between end a and the 3rd end c of self realizes conducting.So, second Being connected and disconnected between the first end a and the second end b of self of the first switch (SW2), and second Being connected and disconnected between the first end a and the 3rd end c of self of individual first switch (SW2) can be led to Cross corresponding 3rd switch (ON/OFF) to realize.

As the preferred technical scheme of one, in the embodiment shown in Fig. 4-1 of the present invention, open for first first Close (SW1) and use MOSFET pipe (P-MOSFET) of p-type, be the most mainly in examining of impedance Consider, MOSFET impedance (generally less than 20 milliohms (mOhm) than other audion impedance relatively Low, loss/power consumption can be reduced, increase user is also used the time helpful by low-loss.Further, First first switch (SW1) can select the MOSFET of enhancement mode to manage (Enhancement Field-Effect Transistor).And general single-pole double-throw switch (SPDT) impedance higher (major part is all ohm level, Generally higher than 1 ohm (ohm)).

First first switch (SW1) in the embodiment of the present invention can use the MOSFET of N-type to manage (N-MOSFET), this gate pole (Gate pole) depending primarily on MOSFET and source electrode (Source pole) Between conducting relation, when N-MOSFET for first switch time, Gate pole tension is more high than Source Time conducting N-MOSFET, when P-MOSFET for first switch time, Gate pole tension is than Source pole Conducting P-MOSFET during ground.

Fig. 4-3 for the power circuit shown in Fig. 4-2 electric discharge time current direction schematic diagram, Fig. 4-4 is to figure Current direction schematic diagram when power circuit shown in 4-2 discharges, as shown in Fig. 4-3, works as power circuit During electric discharge, MOSFET#1 and MOSFET#4 be in block (shutoff) state, can make and MOSFET#1 and the corresponding with MOSFET#4 the 3rd switch is in OFF state；Meanwhile, MOSFET#2 It is in conducting with MOSFET#3, can make and MOSFET#2 and with MOSFET#3 corresponding the Three switches are in ON state, so, the first set of cells B1 and the second set of cells B2 composition parallel-connection structure. As shown in Fig. 4-4, when being charged power circuit, MOSFET#2 and MOSFET#3 is in blocking-up State, MOSFET#1 and MOSFET#4 is in the conduction state, so, the first set of cells B1 and second Set of cells B2 composition series connection connection structure.It should be noted that in the power circuit shown in Fig. 4-4, electric current removes Flow to outside the second set of cells B2, it is also possible to flow to the outfan 120 of power circuit, in other words, this reality Execute power circuit that example provides when charging, can power to the power-consuming component of electronic equipment simultaneously.

Embodiment five

The power circuit of aforesaid xS, the numeral of x is the biggest, then in power circuit, the quantity of set of cells is the most just The biggest, when this power circuit is charged, by output voltage (the i.e. input of power circuit of charger Voltage) the highest, such as, for the power circuit that circuit is 2S2P structure, it is assumed that each piece of battery Voltage be 3V, then when being charged the power circuit of 2S2P structure, charging voltage is 6V, 2S2P The output voltage of the power circuit of structure is 3V；Increase now by a Battery pack group, then the structure of circuit becomes 3S2P, it is assumed that the voltage of each piece of battery is still 3V, then be charged the power circuit of 3S2P structure Time, it is still 3V that charging voltage just becomes the output voltage of the power circuit of 9V, 3S2P structure.When series connection Group number is the highest, then the output voltage of charger is the highest；Provide below a kind of power circuit, it is possible to change The input voltage of variable power source circuit.

Fig. 5-1 is the structural representation of the embodiment of the present invention five power circuit, as shown in fig. 5-1, this power supply Circuit includes multiple input 110, outfan 120, many Battery packs group 130, multiple switch 140, wherein,

Described input 110, is used for connecting external power source and charging to described many Battery packs group；

Described outfan 120, for being powered to described electronic equipment；

Described many Battery packs group 130 includes two groups and set of cells more than two, wherein, described many Battery packs Each Battery pack group in group all includes more than one piece rechargeable battery；

The plurality of switch 140 includes two and plural switch；The plurality of switch, be used for so that Annexation between described many Battery packs group is changed between in parallel in series connection.

In the embodiment of the present invention, described power circuit can also include earth terminal 181, is used for making power circuit Connect the earth.

In the embodiment of the present invention, described power circuit can also include controller 150, is used for preventing described two Group and set of cells more than two are mutually charged (to filling).

Specifically, as shown in fig. 5-1,3 Battery pack groups, 4 the first switch (SW1 are included when power circuit To SW4), 2 inputs and 1 outfan, wherein, the first switch (SW2 to SW4) in Fig. 5-1 Working method and Fig. 3-2 in the working method of the first switch (SW2 to SW4) be identical；Institute is different , when charger cannot provide the charging voltage of 3S, can only provide the charging voltage of 2S, need to protect The the first end a demonstrate,proving first first switch (SW1) is connected with the second end b of self, and needs to ensure First end a of three first switches (SW3) is connected with the 3rd end c of self；So, the second set of cells It is connected in series structure with the 3rd set of cells B3 composition, so the charger of 2S just can be utilized the second battery Group and the 3rd set of cells B3 are charged.When utilizing the second set of cells and the 3rd set of cells B3 is discharged, Need to be connected, by second the first end a of first first switch (SW1) with the second end c of self First end a of the first switch (SW1) is connected with the second end c of self；So, the second set of cells and Three set of cells B3 composition parallel connection structures.It should be noted that when power circuit is charged, First end a of first first switch (SW1) is connected with the second end b of self, and the 3rd first is opened The the first end a closing (SW3) is connected with the second end b of self, the 4th first switch (SW4) the One end a is connected with the second end c of self, then the first set of cells B1 will be added reversely by the charger of 2S Voltage, and owing to the voltage of the charger offer of 2S is more than the voltage that the charger of 1S provides certainly, because of This, can cause the damage of the first set of cells B1 to the first set of cells B1；In order to avoid the generation of this situation, Can be at the second end b and the second of first first switch (SW1) of the 3rd first switch (SW3) A diode is added, to avoid the electric current the second end b stream from first first switch (SW1) between end b To the second end b → SW3 the second end b of the second end b, i.e. SW1 of the 3rd first switch (SW3), Wherein arrow represents the flow direction of electric current.

First first switch SW1 in above-mentioned Fig. 5-1 can also use second switch, as shown in Fig. 5-2, Simultaneously in order to avoid adding backward voltage to the first set of cells, i.e. flow to the in order to avoid electric current from the input of 2S Input → SW3 the second end b of the second end b of three first switches (SW3), i.e. 2S, wherein arrow Represent the flow direction of electric current, a diode can be added in SW3 the second end b to second set of cells B2.

The technical scheme that the embodiment of the present invention provides may be used for following scene, it is assumed that the electricity of 3S2P structure Under normal circumstances, the output voltage of charger is 9V to source circuit；But user forgets that when going out band charges Device, and the voltage of the charger that can find on hand is 6V, then user can change the input of power circuit Voltage, is switched to 6V from original 9V, so, the technical scheme that the embodiment of the present invention provides, it is unlikely to User is forgetting band charger when, it is impossible to be charged to electronic equipment.

During implementing, the power circuit that the embodiment of the present invention provides can also include that a machinery is opened Close, select input voltage or the input voltage of 2S of 3S than just user for power circuit；Certainly machinery leaves The effect closed can also use software to realize, in order to the charger that detection is inserted automatically provides the defeated of 3S Enter the input voltage of voltage or 2S.Although it should be noted that Fig. 5-1 and Fig. 5-2 is to switch with 3S As a example by 2S, but those skilled in the art is it should be appreciated that the power supply of the 4S shown in Fig. 3-3 is electric The power circuit of 4S in the way of employing is similar to Fig. 5-1, can be made into the electricity of the most compatible 3S and 2S by road Source circuit；The power circuit of the 5S shown in Fig. 3-4 can be in the way of employing be similar to Fig. 5-1, by 4S's Power circuit makes the power circuit of the most compatible 4S, 3S and 2S into；For succinct and saving length, here Repeat no more.

Embodiment six

In power circuit provided above, the electricity of the identical chemical feature that the battery in different Battery pack groups uses Pond, the present embodiment provides the battery of a kind of different group can use the battery of different chemical characteristic.Fig. 6 is this The schematic diagram of inventive embodiments six power circuit, as shown in Figure 6, this power circuit includes 4 Battery pack group (B1 To B4) and 4 first switches (SW1 to SW4), each in described four first switches first is opened Pass is respectively provided with the first end a, the second end b and the 3rd end c, each in wherein said four first switches the First end a of one switch can with the 3rd end c of the second end b or described first switch of described first switch even Logical；Wherein:

The positive pole of the 1st Battery pack group B1 in described 4 Battery pack groups connects the 1st first switch SW1's The second end b of the first end a, described 1st first switch SW1 connects the input 110 of described power circuit, The 3rd end c of described 1st first switch SW1 connects the outfan 120 of described power circuit；

The negative pole of the 1st Battery pack group B1 in described 4 Battery pack groups connects in described 4 first switches The first end a of the 2nd first switch SW2, the second end b of described 2nd first switch SW2 connect The positive pole of the 2nd Battery pack group B2 in described 4 Battery pack groups, the of described 2nd first switch SW2 Three end c connect the negative pole of described 2nd Battery pack group B2；

The positive pole of described 2nd Battery pack group B2 connects the outfan 120 of described power circuit；

The positive pole of the 3rd Battery pack group B3 in described 4 Battery pack groups connects the 3rd first switch SW3's The second end b of the first end a, described 3rd first switch SW3 connects the input 120 of described power circuit, The 3rd end c of described 3rd first switch SW3 connects the outfan 120 of described power circuit；

The negative pole of the 3rd Battery pack group B3 in described 4 Battery pack groups connects in described 4 first switches The first end a of the 4th first switch SW4, the second end b of described 4th first switch SW4 connect The positive pole of the 4th Battery pack group B4 in described 4 Battery pack groups, the of described 4th first switch SW4 Three end c connect the negative pole of described 4th Battery pack group B4；

The positive pole of described 4th Battery pack group B4 connects the outfan 120 of described power circuit.

In the embodiment of the present invention, described power circuit can also include earth terminal, is used for making power circuit connect Greatly.

In the embodiment of the present invention, described power circuit can also include controller 150, is used for preventing described two Group and set of cells more than two are mutually charged (to filling).

In embodiments of the present invention, operationally, connected mode is as follows for the power circuit shown in Fig. 6: to figure When power circuit shown in 6 is charged, the first set of cells B1 and the second set of cells B2 are connected in series, the Three set of cells B3 and the 4th set of cells B4 are connected in series；When power circuit shown in Fig. 6 is discharged, first Set of cells B1 and the second set of cells B2 are connected in parallel, and the 3rd set of cells B3 and the 4th set of cells B4 are in parallel Connect.

Based on aforesaid power circuit, the present invention implements to reoffer the method for work of a kind of power circuit, the party Method is applied to be charged power circuit, and the function that this method of work is realized can be by electronic equipment Processor caller code realize, certain program code can be saved in computer-readable storage medium, Visible, this electronic equipment at least includes processor and storage medium.The method includes:

The positive pole of the 1st Battery pack group in N Battery pack group in described power circuit is connected described power circuit Input；N is the integer more than or equal to 2；

The negative pole of the jth Battery pack group in described N Battery pack group is connected the in described N Battery pack group (j+1) positive pole of Battery pack group, described j is less than or equal to (N-1) more than or equal to 1；

The negative pole of the N Battery pack group in described N Battery pack group is connected the ground of described power circuit.

Based on aforesaid power circuit, the present invention implements to reoffer the method for work of a kind of power circuit, the party When method is applied to power circuit electric discharge, the function that this method of work is realized can be by the place in electronic equipment Reason device caller code realizes, and certain program code can be saved in computer-readable storage medium, it is seen then that This electronic equipment at least includes processor and storage medium.The method includes:

The positive pole of the 1st Battery pack group in described N Battery pack group is connected the N in described N Battery pack group The positive pole of Battery pack group；

The negative pole of (j-1) the Battery pack group in described N Battery pack group is connected in described N Battery pack group The negative pole of the i-th Battery pack group, described j is more than or equal to 2 and is less than or equal to the integer of (N-1)；

The negative pole of the N Battery pack group in described N Battery pack group is connected the ground of described power circuit.

Based on aforesaid power circuit, the present invention implements to reoffer a kind of electronic equipment, in this electronic equipment First connects unit, the second connection unit and the 3rd connection unit can be by the processor in electronic equipment Realize；The most also can be realized by concrete logic circuit；During specific embodiment, processor Can be central processing unit (CPU), microprocessor (MPU), digital signal processor (DSP) or existing Field programmable gate array (FPGA) etc..This electronic equipment include the first connection unit, second connect unit and 3rd connects unit, wherein:

Described first connects unit, for by the 1st Battery pack group in N Battery pack group in described power circuit Positive pole connect described power circuit input；N is the integer more than or equal to 2；

Described second connects unit, for being connected by the negative pole of the jth Battery pack group in described N Battery pack group The positive pole of (j+1) the Battery pack group in described N Battery pack group, described j is less than or equal to more than or equal to 1 (N-1)；

Described 3rd connects unit, for being connected by the negative pole of the N Battery pack group in described N Battery pack group The ground of described power circuit.

Based on aforesaid power circuit, the present invention implements to reoffer a kind of electronic equipment, in this electronic equipment the Four connect unit, the 5th connection unit and the 6th connection unit, can be by the processor in electronic equipment Realize；The most also can be realized by concrete logic circuit；During specific embodiment, processor Can be central processing unit (CPU), microprocessor (MPU), digital signal processor (DSP) or existing Field programmable gate array (FPGA) etc..

This electronic equipment includes that four connection unit, the 5th connection unit and the 6th connect unit, wherein:

Described 4th connects unit, for being connected by the positive pole of the 1st Battery pack group in described N Battery pack group The positive pole of the N Battery pack group in described N Battery pack group；

Described 5th connects unit, for by the negative pole of (j-1) the Battery pack group in described N Battery pack group Connecting the negative pole of the i-th Battery pack group in described N Battery pack group, described j is for more than or equal to 2 and be less than Integer in (N-1)；

Described 6th connects unit, for being connected by the negative pole of the N Battery pack group in described N Battery pack group The ground of described power circuit.

Should be understood that during description is in the whole text that " embodiment " or " embodiment " mentioned means with real Execute the relevant special characteristic of example, structure or characteristic to be included at least one embodiment of the present invention.Therefore, Not necessarily refer in " in one embodiment " or " in one embodiment " that entire disclosure occurs everywhere Identical embodiment.Additionally, these specific features, structure or characteristic can combine in any suitable manner In one or more embodiments.Should be understood that in various embodiments of the present invention, the sequence of above-mentioned each process Number size be not meant to the priority of execution sequence, the execution sequence of each process should be patrolled with its function and inherence Collect and determine, and the implementation process of the embodiment of the present invention should not constituted any restriction.

In several embodiments provided herein, it should be understood that disclosed equipment and method, can To realize by another way.Apparatus embodiments described above is only schematically, such as, and institute Stating the division of unit, be only a kind of logic function and divide, actual can have other dividing mode when realizing, As: multiple unit or assembly can be in conjunction with, or it is desirably integrated into another system, or some features can be neglected Slightly, or do not perform.It addition, the coupling each other of shown or discussed each ingredient or directly coupling Close or communication connection can be the INDIRECT COUPLING by some interfaces, equipment or unit or communication connection, can Be electrical, machinery or other form.

The above-mentioned unit illustrated as separating component can be or may not be physically separate, as The parts that unit shows can be or may not be physical location；Both may be located at a place, it is possible to To be distributed on multiple NE；Part or all of unit therein can be selected according to the actual needs Realize the purpose of the present embodiment scheme.

It addition, each functional unit in various embodiments of the present invention can be fully integrated in a processing unit, Can also be that each unit is individually as a unit, it is also possible to two or more unit are integrated in one In individual unit；Above-mentioned integrated unit both can realize to use the form of hardware, it would however also be possible to employ hardware adds soft The form of part functional unit realizes.

One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can Completing with the hardware relevant by programmed instruction, aforesaid program can be stored in embodied on computer readable storage In medium, this program upon execution, performs to include the step of said method embodiment；And aforesaid storage is situated between Matter includes: movable storage device, read only memory (Read Only Memory, ROM), magnetic disc or The various medium that can store program code such as CD.

Or, if the above-mentioned integrated unit of the present invention is using the form realization of software function module and as independent Production marketing or use time, it is also possible to be stored in a computer read/write memory medium.Based on so Understanding, the part that prior art is contributed by the technical scheme of the embodiment of the present invention the most in other words can Embodying with the form with software product, this computer software product is stored in a storage medium, bag Include some instructions with so that a computer equipment (can be personal computer, server or network Equipment etc.) perform all or part of of method described in each embodiment of the present invention.And aforesaid storage medium bag Include: the various media that can store program code such as movable storage device, ROM, magnetic disc or CD.

The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited to This, any those familiar with the art, in the technical scope that the invention discloses, can readily occur in Change or replacement, all should contain within protection scope of the present invention.Therefore, protection scope of the present invention should It is as the criterion with described scope of the claims.

Claims (11)

1. a power circuit, it is characterised in that the described power circuit input voltage when charging is with described The power circuit output voltage when electric discharge is different, and described power circuit includes: input, outfan, many Battery pack group and multiple switch, wherein,

Described input, is used for connecting external power source and charging to described many Battery packs group；

Described outfan, for being powered to described electronic equipment；

Described many Battery packs group includes two groups and set of cells more than two, wherein, in described many Battery packs group Each Battery pack group all include one piece and more than one piece rechargeable battery；

The plurality of switch includes two and plural switch；The plurality of switch, is used for so that described Annexation between many Battery packs group is changed between in parallel in series connection.

Power circuit the most according to claim 1, it is characterised in that the plurality of switch, for right When described power circuit is charged, described many Battery packs group is connected；And described power circuit exists During electric discharge, described many Battery packs group is carried out parallel connection.

Power circuit the most according to claim 1, it is characterised in that described power circuit includes two groups Set of cells and two first switches, said two first switch in each first switch be respectively provided with the first end, Second end and the 3rd end, the first end of each the first switch in wherein said two first switches can be with institute State the second end of the first switch or the 3rd end connection of described first switch；Wherein:

The positive pole of the 1st Battery pack group in described two Battery pack groups connects the first end of the 1st first switch, Second end of described 1st first switch connects the input of described power circuit, opens for described 1st first The outfan of power circuit described in the three-terminal link closed；

The negative pole of the 1st Battery pack group in described two Battery pack groups connects the 2nd during said two first switchs First end of individual first switch, the second end of described 2nd first switch connects in described two Battery pack groups The positive pole of the 2nd Battery pack group, the 2nd Battery pack group described in the three-terminal link of described 2nd first switch Negative pole；

The positive pole of described 2nd Battery pack group connects the outfan of described power circuit.

Power circuit the most according to claim 3, it is characterised in that described power circuit also includes control Device processed, described controller is used for preventing described two Battery pack groups to filling, and described controller is positioned at described two groups of electricity The positive pole of the second Battery pack group in the positive pole of the first Battery pack group of Chi Zuzhong and described two Battery pack groups it Between.

Power circuit the most according to claim 4, it is characterised in that described controller includes two two Pole is managed, wherein: the 1st diode in said two diode is positioned at the positive pole of described 1st Battery pack group And between the outfan of power circuit, the 2nd diode in said two diode is positioned at described 2nd group Between positive pole and the outfan of power circuit of set of cells.

Power circuit the most according to claim 1, it is characterised in that described power circuit includes N Battery pack group, N number of first switch and (N-2) individual second switch, described N is the integer more than or equal to 3, Wherein:

The positive pole of the 1st Battery pack group in described N Battery pack group connects in described N number of first switch the 1st First end of the first switch, the second end of described 1st first switch connects the input of described power circuit, The outfan of power circuit described in the three-terminal link of described 1st first switch；

The negative pole of the i-th Battery pack group in described N Battery pack group connects the first of (i+1) individual first switch End, second end of described (i+1) individual first switch connects the positive pole of (i+1) Battery pack group, described The three-terminal link ground of (i+1) individual first switch, the positive pole of (i+1) Battery pack group and described power supply The connection i-th second switch of the outfan of circuit；Described i is less than or equal to (N-2) more than or equal to 1；

The negative pole of (N-1) the Battery pack group in described N Battery pack group connects the of n-th the first switch One end, the second end of described n-th the first switch connects the positive pole of N Battery pack group, described n-th The three-terminal link ground of the first switch；

The positive pole of N Battery pack group connects the outfan of described power circuit.

Power circuit the most according to claim 1, it is characterised in that described power circuit includes 4 Battery pack group and 4 first switches, each first switch in described 4 first switches is respectively provided with first End, the second end and the 3rd end, the first end of each the first switch in wherein said 4 first switches can Connect with the 3rd end of the second end of described first switch or described first switch；Wherein:

The positive pole of the 1st Battery pack group in described 4 Battery pack groups connects the first end of the 1st first switch, Second end of described 1st first switch connects the input of described power circuit, opens for described 1st first The outfan of power circuit described in the three-terminal link closed；

The negative pole of the 1st Battery pack group in described 4 Battery pack groups connects the 2nd in described 4 first switches First end of individual first switch, the second end of described 2nd first switch connects in described 4 Battery pack groups The positive pole of the 2nd Battery pack group, the 2nd Battery pack group described in the three-terminal link of described 2nd first switch Negative pole；

The positive pole of described 2nd Battery pack group connects the outfan of described power circuit；

The positive pole of the 3rd Battery pack group in described 4 Battery pack groups connects the first end of the 3rd first switch, Second end of described 3rd first switch connects the input of described power circuit, opens for described 3rd first The outfan of power circuit described in the three-terminal link closed；

The negative pole of the 3rd Battery pack group in described 4 Battery pack groups connects the 4th in described 4 first switches First end of individual first switch, the second end of described 4th first switch connects in described 4 Battery pack groups The positive pole of the 4th Battery pack group, the 4th Battery pack group described in the three-terminal link of described 4th first switch Negative pole；

The positive pole of described 4th Battery pack group connects the outfan of described power circuit.

8. the method for work of a power circuit as claimed in claim 1, it is characterised in that described method Including:

The positive pole of the 1st Battery pack group in N Battery pack group in described power circuit is connected described power circuit Input；N is the integer more than or equal to 2；

The negative pole of the jth Battery pack group in described N Battery pack group is connected the in described N Battery pack group (j+1) positive pole of Battery pack group, described j is less than or equal to (N-1) more than or equal to 1；

The negative pole of the N Battery pack group in described N Battery pack group is connected the ground of described power circuit.

9. the method for work of a power circuit as claimed in claim 1, it is characterised in that described method Including:

The positive pole of the 1st Battery pack group in described N Battery pack group is connected the N in described N Battery pack group The positive pole of Battery pack group；

The negative pole of (j-1) the Battery pack group in described N Battery pack group is connected in described N Battery pack group The negative pole of the i-th Battery pack group, described j is more than or equal to 2 and is less than or equal to the integer of (N-1)；

The negative pole of the N Battery pack group in described N Battery pack group is connected the ground of described power circuit.

10. an electronic equipment, it is characterised in that described electronic equipment includes as claimed in claim 1 Power circuit, this electronic equipment also includes that the first connection unit, the second connection unit and the 3rd connect unit, Wherein:

Described first connects unit, for by the 1st Battery pack group in N Battery pack group in described power circuit Positive pole connect described power circuit input；N is the integer more than or equal to 2；

Described second connects unit, for being connected by the negative pole of the jth Battery pack group in described N Battery pack group The positive pole of (j+1) the Battery pack group in described N Battery pack group, described j is less than or equal to more than or equal to 1 (N-1)；

Described 3rd connects unit, for being connected by the negative pole of the N Battery pack group in described N Battery pack group The ground of described power circuit.

11. 1 kinds of electronic equipments, it is characterised in that described electronic equipment includes as claimed in claim 1 Power circuit, this electronic equipment also includes that four connection unit, the 5th connection unit and the 6th connect unit, its In:

Described 4th connects unit, for being connected by the positive pole of the 1st Battery pack group in described N Battery pack group The positive pole of the N Battery pack group in described N Battery pack group；

Described 5th connects unit, for by the negative pole of (j-1) the Battery pack group in described N Battery pack group Connecting the negative pole of the i-th Battery pack group in described N Battery pack group, described j is for more than or equal to 2 and be less than Integer in (N-1)；

Described 6th connects unit, for being connected by the negative pole of the N Battery pack group in described N Battery pack group The ground of described power circuit.