CN204928206U - System for match end of life to a plurality of batteries / battery stand -by unit - Google Patents

Abstract

System for match end of life to a plurality of batteries / battery stand -by unit is provided. The system includes first converter, second converter, be configured as to first converter output current's a rechargeable battery, be configured as to second converter output current's the 2nd rechargeable battery and be coupled to the control circuit of converter. Every rechargeable battery has residual discharge endless capacity and number of times. Control circuit is configured as: because their residual life energy throughput is confirmed to a rechargeable battery and the respective residual discharge endless capacity of the 2nd rechargeable battery and number of times to residual life energy throughput in response to a rechargeable battery's residual life energy throughput and the 2nd rechargeable battery equals to control the electric current that the adjustment of first converter comes from a rechargeable battery basically, with the reduction speed of the residual life energy throughput that changes a rechargeable battery.

Description

For the system of multiple battery/battery backup unit coupling end-of-life

The cross reference of related application

This application claims the U.S. Provisional Application No.62/020 submitted on July 2nd, 2014, the rights and interests of 201.

Technical field

Present disclosure relate to for for multiple battery and/or battery backup unit to mate the system and method for end-of-life.

Background technology

This part provides background information that is relevant to present disclosure but not necessarily prior art.

Electrical system generally includes main power source and stand-by power supply, and this stand-by power supply is used for providing non-firm power when main power source can not meet loading demand due to such as input electric power loss, fault etc. to load.Usually, stand-by power supply comprises one or more rechargeable battery.In this case, battery can be powered to load, until till the one or more batteries in this battery can not do (such as, battery reaches its end-of-life) like this.Typically, rechargeable battery provides equal electric current (such as, being commonly referred to " load balance ") to load.

Utility model content

This part provides the overview of present disclosure, instead of its four corner or its institute characteristic comprehensively open.

According to an aspect of present disclosure, for providing a system for electric power to load, comprise the first transducer, the second transducer, be configured to the first converter output current the first rechargeable battery, be configured to the second rechargeable battery of the second converter output current and the control circuit that couples with the first transducer and the second transducer.Each rechargeable battery has capacity and the number of times of socking out circulation.Control circuit is configured to the residual life energy throughput determining the first rechargeable battery and the second rechargeable battery based on the capacity of the first rechargeable battery and the second rechargeable battery socking out circulation separately and number of times, and it is not substantially equally control the first transducer adjustment from the electric current of the first rechargeable battery, to change the minimizing speed of the residual life energy throughput of the first rechargeable battery that control circuit is configured in response to the residual life energy throughput of the first rechargeable battery and the residual life energy throughput of the second rechargeable battery.

According to description provided herein, other aspects and suitable application area will become obvious.Should be understood that, the various aspects of present disclosure can realize separately or combine with other aspects one or more realizing.It is to be further understood that description herein and particular example are intended to the object only illustrated, and be not intended to limit the scope of present disclosure.

Accompanying drawing explanation

Accompanying drawing described herein for illustration of only selected embodiment but not all possible realization, and is not intended to limit the scope of present disclosure.

Fig. 1 is the block diagram comprising two rechargeable batteries, two transducers and the system for the control circuit that controls this transducer according to an example embodiment of present disclosure.

Fig. 2 is the block diagram comprising the system of two transducers being coupled to unequally loaded Fig. 1 according to another example embodiment.

Fig. 3 is the block diagram comprising the system of two transducers being coupled to equally loaded Fig. 1 according to another example embodiment.

Fig. 4 is the block diagram comprising three rechargeable batteries, three transducers and the system for the control circuit that controls this transducer according to another example embodiment.

Fig. 5 is the block diagram comprising the system of two battery backup units (BBU) according to another example embodiment, and wherein each BBU has rechargeable battery, transducer and the control circuit for controlling each transducer.

Fig. 6 is the block diagram comprising the system of two BBU according to another example embodiment, and wherein each BBU has rechargeable battery, transducer and the control circuit for controlling this transducer.

Fig. 7 is the system block diagram of the BBU according to the rechargeable battery comprising input converter, couple with this input converter of another example embodiment and the output translator that is coupled to rechargeable battery and input converter.

Fig. 8 is the block diagram of the system of three BBU comprising main power source and couple with this main power source according to another example embodiment.

Run through some views of accompanying drawing, corresponding Reference numeral indicates corresponding part or feature.

Embodiment

More fully exemplary embodiment is described now with reference to accompanying drawing.

There is provided exemplary embodiment, to make present disclosure more thorough and fully to pass on the scope of present disclosure to those skilled in the art.Set forth the example of many details such as concrete parts, equipment and method, to provide the thorough understanding of the embodiment to present disclosure.It will be apparent to those skilled in the art that and do not need to adopt detail, exemplifying embodiment embodiment can be carried out in many different forms, and these all should not be interpreted as the restriction of the scope to present disclosure.In some exemplary embodiments, known process, known device structure and known technology is not described in detail.

Term used herein only for the object describing particular example embodiment, and and be not intended to limit.Unless the context clearly indicates otherwise, otherwise as used herein, singulative " ", " one " and " being somebody's turn to do " can be intended to comprise plural form.Term " comprises ", " comprising ", " containing " and " having " all comprising property, and the feature of therefore specifying existence to state, integer, step, operation, key element and/or parts, but do not get rid of existence or increase other features one or more, integer, step, operation, key element, parts and/or their combination.Unless clearly by the order determined as performing, otherwise method step described herein, process and operation should not be interpreted as requiring they with discussions or the execution of shown particular order.It is to be further understood that the step that can adopt other or alternative.

Although term first, second, third, etc. can be used in this article to describe various key element, parts, region, layer and/or part, these key elements, parts, region, layer and/or part should not limited by these terms.These terms can only for distinguishing key element, parts, region, layer or part and another region, layer or part.Unless pointed out clearly at context, otherwise term is not as implied order or order when " first ", " second " and other numerical terms use in this article.Thus, when not deviating from the instruction of example embodiment, below the first element, first component, first area, ground floor or the Part I discussed can be called as the second key element, second component, second area, the second layer or Part II.

For convenience of description, can use such as in this article " inside ", " outside ", " under ", " below ", D score, " top ", " on " etc. the term of space correlation to describe the relation of the key element shown in accompanying drawing or feature and another one or multiple key element or feature.The term of space correlation can be intended to the different orientation being in the equipment used or in work comprised except the orientation described in accompanying drawing.Such as, if the equipment in accompanying drawing is squeezed, be then described as be in other key elements or feature " below " or " under " key element will be oriented to " top " of other key elements or feature.Thus, exemplary term " below " can be included in and under two orientations.Equipment otherwise can carry out orientation (90-degree rotation or be in other directed) and space correlation descriptor used herein is correspondingly understood.

Figure 1 illustrates the system for providing electric power to load of an example embodiment according to present disclosure, and this overall system is represented by Reference numeral 100.As shown in Figure 1, system 100 comprise transducer 102,104, for respectively to transducer 102,104 output current i1, i2 rechargeable battery 106,108 and be coupled to the control circuit 110 of transducer 102,104.Each rechargeable battery 106,108 has capacity and the number of times of socking out circulation.Control circuit 110 is based on rechargeable battery 106, capacity and the number of times of 108 respective socking out circulations determine rechargeable battery 106, the residual life energy throughput of 108, and control circuit is not substantially equally one of to control in transducer the electric inlet flow i1 from rechargeable battery 106 that (such as transducer 102) adjusts this transducer in response to the residual life energy throughput of rechargeable battery 106 and the residual life energy throughput of rechargeable battery 108, to change the minimizing speed of the residual life energy throughput of rechargeable battery 106.

Such as, each rechargeable battery 106,108 can have the different time to its end-of-life (EOL).These can owing to the number of times of the charging cycle of the age of battery, battery, environmental aspect etc.Therefore, (such as, battery 106) can reach its EOL before another rechargeable battery (such as, battery 108) one of in rechargeable battery.But as hereinafter further illustrated, by changing the minimizing speed of one or two the residual life energy throughput in rechargeable battery 106,108, when the estimated time reaching its EOL changes by one or two rechargeable battery.Therefore, the time to the EOL of each rechargeable battery 106,108 can become substantially equal at time point after a while.Therefore, each rechargeable battery 106,108 can reach its EOL in the substantially the same time, and thus replaces at same time.Therefore, not there is disclosed herein this mate compared with the system of the battery of EOL control program with comprising, the number in the battery, battery unit etc. of displacement no electricity required man-hour, triggering (trip) etc. can be reduced.

In addition, by making each battery 106,108 reach its EOL in the substantially the same time, the number often triggering replaced battery, battery unit etc. can be increased.

In addition, in prior art systems, when the battery of in multiple battery has reached its EOL, no matter the situation of other batteries how, has usually replaced the plurality of battery.Therefore, therefore the usable-battery in prior art systems is usually wasted by unnecessarily replacing.But by utilizing instruction disclosed herein, the multiple batteries in system reach its EOL, and therefore can replace and can not waste usable-battery simultaneously simultaneously.

Bright as noted earlier, the capacity that the residual life energy throughput (being sometimes referred to as life-span energy capacity) of each rechargeable battery 106,108 circulates based on socking out and number of times.Such as, residual life energy throughput can represent the total amount of the energy drawn from this rechargeable battery in the cycles left of rechargeable battery.In certain embodiments, residual life energy throughput can be the part being reduced to its initial capacity at the capacity of battery, the total amount of the energy such as, before 85 percent, 80 percent, 70 percent, 50 percent etc. in the cycles left of battery.Therefore, the residual life energy throughput of rechargeable battery can be determined by the number of times capacity (be sometimes referred to as and can use energy) of battery being multiplied by the circulation of its socking out.

Such as, rechargeable battery 106 can have about 75W-Hr (such as, 3kW was to nearly 90 seconds, and 1.5kW was to nearly 180 seconds etc.) capacity and 15 socking outs circulations, and rechargeable battery 108 can have capacity and 10 socking outs circulations of about 75W-Hr.In this particular example, bot 502 includes, the residual life energy throughput of battery 106 is 1,125 (that is, 75W-Hr × 15 time socking outs), and the residual life energy throughput of battery 108 is 750 (that is, 75W-Hr × 10 time socking outs).Therefore, battery 106 (having higher residual life energy throughput) has the long period to its EOL compared with battery 108 (having lower residual life energy throughput).

Because battery 106,108 does not have substantially equal residual life energy throughput, so battery current i1, i2 from one or two battery 106,108 can be adjusted by controlling one or two transducer 102,104.Such as, if the battery current i1 increased from battery 106 and remain unchanged from the battery current i2 of battery 108 or reduce (further illustrating as following), then the minimizing speed of the residual life energy throughput of battery 106 will increase relative to the minimizing speed of the residual life energy throughput of battery 108.Alternately, if reduce from the battery current i1 of battery 106 and the battery current i2 from battery 108 remain unchanged or increase, then the minimizing speed of the residual life energy throughput of battery 106 will reduce relative to the minimizing speed of the residual life energy throughput of battery 108.

Therefore, battery current i1 from battery 106 (there is higher residual life energy throughput) can be increased, the electric power of the higher percent needed for one or more loads battery 106 being provided compared with battery 108 couple with one or two transducer 102,104 by controlling transducer 102.By doing like this, compared with battery 108, battery 106 comparatively fast discharges and therefore needs more early to recharge.Therefore, compared with battery 108, the number of times of socking out circulation in battery 106 and/or the capacity of battery 106 can with more rapid rate minimizings.Therefore, the residual life energy throughput (it is based on socking out circulation and capacity) of battery 106 can reduce with more rapid rate compared with the residual life energy throughput of battery 108.Therefore, the residual life energy throughput of each battery 106,108 can become equal (at point sometime) substantially, and thus time to the EOL of each rechargeable battery 106,108 can become substantially equal.

The number of times of socking out circulation is the number of times of the remaining complete charge and discharge cycles that battery can carry out.In certain embodiments, the number of times of this complete charge and discharge cycles comprises battery and drops to a part in its initial capacity at its capacity, the number of times of the remaining circulation such as, can carried out before 85 percent, 80 percent, 70 percent etc.

The number of times of socking out circulation can depend on the length of such as each discharge cycle (such as, 90 seconds, 180 seconds etc.), discharge power in discharge cycle (such as, 3kW, 1.5kW etc.), the age, environmental aspect (such as, temperature) etc. of battery.Therefore, the number of times circulated for the socking out of each battery can non-linearly and/or linearly reduce at any given time.

The number of times that socking out circulates can be determined according to any applicable mode.Such as, control circuit 110 can input based on user, one or more parameters etc. of system 100 determine the number of times that socking out circulates.In certain embodiments, user can input the specification, battery size, default socking out number of times etc. of particular battery.In these examples, control circuit 110 can determine by the data and the one or more look-up tables stored in memory using user's input the number of times that socking out circulates.Additionally and/or alternately, control circuit 110 can the following sensor parameter of receiving system 100: input and/or output current, input and/or output voltage, temperature etc., determines the number of times that socking out circulates.

In certain embodiments, control circuit 110 receives the initial number of times (such as, preset value) of socking out circulation when each rechargeable battery 106,108 is mounted.This initial number of times can be provided by manufacturer, can determine based on manufacturer specification, can be estimated.After the initial number of times of setting socking out circulation, control circuit 110 one or more parameters of monitoring system 100 can determine the number of times that socking out circulates.Such as, and as shown in Figure 1, control circuit 110 is coupled to battery 106,108.Therefore, control circuit 110 can be monitored the output of (such as, sensing etc.) one or two battery 106,108 and/or be inputted the every primary cell charging and/or battery discharge that detect one or two battery.In certain embodiments, control circuit 110 can comprise the counter counted every primary cell charging and/or battery discharge.Then, can by deducting the number of times of battery charging in the preset times that circulates from socking out, the number of times etc. of battery discharge determines the number of times that socking out circulates.

As mentioned above, transducer 102 is controlled current i 1 adjusted from its respective battery 106.Such as, transducer 102 can be controlled increase and/or reduce battery current i1.In certain embodiments, current i 1 can be adjusted by the regulation output voltage adjusting transducer 102.In these cases, its output voltage is adjusted to the restriction set point required for load by control transducer 102.Limiting set point can be such as 12VDC, 48VDC etc.If expect the current i 1 of adjustment from battery 106, then can adjust (such as, reduce and/or improve) and limit set point.

Such as, output voltage set point can be reduced to 11.999VDC from 12VDC, be increased to 48.001VDC etc. from 48VDC.This makes the output current of transducer 102 adjust, and it causes the input current of transducer 102 (that is, from the current i 1 that rechargeable battery 106 draws) to change.Therefore, the minimizing speed of the residual life energy throughput of rechargeable battery 106 can be adjusted, thus bright as noted earlier be changed the time of the EOL to battery 106.

In such an example, while control battery current i1 adjusts the minimizing speed of residual life energy throughput, the output voltage of transducer 102 can be regulated near its original restriction set point (such as, 12VDC, 48VDC etc.).As described further below, can by adjusting the control signal (such as, pulse width modulation (PWM), pulse frequency modulated (PFM) etc.) provided to the power switch in transducer 102 and/or this change being realized set-point voltage by any other method be applicable to.

In other examples, the one or both in the input current of regulating rotary parallel operation can be carried out according to certain current level, the electric current drawn from one or two battery is adjusted.Like this, the reduction speed of the residual life energy throughput of one or two battery 106,108 can be adjusted as mentioned above.

Battery current i1, i2 from battery 106,108 can be increased and/or reduce (bright as noted earlier) to any suitable level.Such as, the maximum current that the current i 1 from battery 106 is adjusted to battery 106 by transducer 102 can be controlled, and/or the maximum current that the current i 2 from battery 108 is adjusted to battery 108 by transducer 104 can be controlled.

Bright as noted earlier, when adjusting the electric current from a battery, the electric current from another battery also can be adjusted.Such as, if control transducer 102 increases the battery current i1 from battery 106, then the battery current i2 from battery 108 can reduce the remainder providing required load current.As mentioned above, this reduction of battery current i2 can be caused by controlling transducer 104.In other examples, further illustrate as following, when not controlling transducer 104, battery current i2 can reduce.

In the exemplary embodiment shown in fig. 1, one or two transducer 102,104 can be controlled with current i 1, the i2 of adjustment from its corresponding battery 106,108, until equal to the time of the EOL of each rechargeable battery 106,108.Such as, control circuit 110 can control transducer 102 and adjust current i 1 from battery 106, until the residual life energy throughput of this battery 106 is substantially equal to the residual life energy throughput of battery 108.In this, control circuit 110 can control transducer 102,104 and makes battery 106,108 provide identical currents to load (multiple load).If the residual life energy throughput of battery 106,108 becomes unequal again, then bright as noted earlier, control circuit 110 can control one or two transducer 102,104 to change the minimizing speed of the residual life energy throughput of at least one battery in battery 106,108.

Additionally, although in FIG each rechargeable battery 106,108 is depicted as a rechargeable battery, but should be apparent that, one or two rechargeable battery 106,108 can represent a rechargeable battery and/or multiple rechargeable battery (such as, comprising the battery pack etc. of multiple battery).Such as, rechargeable battery 106 can comprise parallel connection, series connection and/or connection in series-parallel and be coupled in 8 rechargeable batteries together in combination, and rechargeable battery 108 can comprise a rechargeable battery.Therefore, as described herein, control circuit 110 can determine the residual life energy throughput of each independent battery of rechargeable battery, the battery pack of rechargeable battery etc.

In some example embodiments, transducer 102,104 can be coupled to one or more load.Such as, Fig. 2 shows following system 200: this system 200 comprise from load (multiple load) 202 transducer coupled 102, with different load (multiple load) 204 transducer coupled 104 and the control circuit of Fig. 1 that couples with transducer 102,104.Alternately, Fig. 3 shows following system 300: this system 300 comprises and identical load (multiple load) 302 transducer coupled 102 and transducer 104 and the control circuit 110 of Fig. 1 that couples with transducer 102,104.

As shown in Figure 3, transducer 102 and transducer 104 comprise the output of coupled in parallel separately.In such examples, can adjust when transducer 102,104 of the correspondence of the not battery 106,108 of control chart 3 from the electric current one of in battery 106,108.Such as, load (multiple load) 302 may need the certain loads electric current generally equally shared between transducer 102,104.Bright as noted earlier, if control transducer 102 by the output current of the transducer 102 increasing Fig. 3 to increase battery current i1, then the output current of transducer 104 is forced to reduce to provide the residual current needed for load current.Therefore, when not controlling transducer 104, the battery current i2 drawn from battery 108 reduces.Therefore, the control circuit 110 of Fig. 3 can control one of two transducers.Broadly, control circuit 110 (and disclosed herein any other control circuit) can control N-1 transducer in its system, and wherein N equals the number of transducer.

Although Fig. 1 to Fig. 3 shows the example system comprising two rechargeable batteries and two transducers, but should be apparent that for those skilled in that art, any system in this system can comprise more than two batteries and/or more than two transducers when not departing from the scope of present disclosure.Such as, Fig. 4 shows another system 400 following: this system 400 comprise the battery 106,108 of Fig. 1 and transducer 102,104, transducer 402, the rechargeable battery 404 coupled with transducer 402 and control circuit 406.To battery 106,108 similar, battery 404 has capacity and the number of times of socking out circulation.

The control circuit 406 of Fig. 4 is substantially similar to the control circuit 110 of Fig. 1.Such as, and as shown in Figure 4, as described above, control circuit 406 is coupled to each transducer 102,104,402, and determines the residual life energy throughput of each rechargeable battery 106,108,404.As illustrated here, control circuit 406 can control the one or more transducers in transducer 102,104,402.Such as, control circuit 406 can control one or more transducers in transducer 102,104,402 with adjustment from the current i 1 of rechargeable battery 106,108,404, i2, i3, thus changes the minimizing speed of the residual life energy throughput of the battery of one or more correspondence.

Additionally, and as shown in Figure 4, transducer 102 comprises DC (direct current)/DC (direct current) dc-dc converter, transducer 104 comprises linear regulator, and transducer 402 comprises DC (direct current)/AC (interchange) transducer (such as, being commonly referred to inverter).But, be to be understood that, transducer 102,104,402 (and/or disclosed herein any other transducer) can be any suitable transducer (such as, step-down controller, boost converter, buck/boost converter, bridge transducer etc.) with any suitable topology.In certain embodiments, bright as noted earlier, transducer 102,104,402 can comprise the one or more power switches for adjusting set-point voltage.In such an example, the one or more transducers in transducer can be parts for switched-mode power supply.

In addition, although the transducer 102,104,402 of Fig. 4 is shown as and comprises dissimilar transducer, but should be apparent that, two or more transducers in transducer 102,104,402 can comprise the transducer (such as, DC/DC transducer, DC/AC transducer etc.) of identical type when needed.Such as, transducer 102,104 can comprise there is any proper topologies DC/DC dc-dc converter (such as, one or more step-down controller, boost converter, buck/boost converter etc.), and transducer 402 can comprise DC/AC transducer.

In some instances, battery disclosed herein and/or transducer can be the parts of battery backup unit (BBU).Such as, Fig. 5 shows following system 500: this system 500 comprises two BBU502,504 and the control circuit 506 that couples with each BBU502,504.When main power source (not shown) can not provide electric power to one or more load due to the loss, fault etc. of such as input electric power, each BBU502,504 can provide non-firm power to one or more load (not shown).

One or more rechargeable batteries 512,514 that each BBU502,504 comprises transducer 508,510 and couples with the input of transducer 508,510.As illustrated here, transducer 508,510 can comprise one or more DC/DC transducer, DC/AC inverter and/or any other suitable transducer.

The control circuit 506 of Fig. 5 can be substantially similar to the control circuit of Fig. 1.Therefore, as illustrated here, control circuit 506 can determine the residual life energy throughput of rechargeable battery 512,514, and control circuit 506 can control the battery current of one or two transducer 508,510 adjustment from battery 512,514, to change the minimizing speed of the residual life energy throughput of battery 512,514.

Such as, the output voltage of one or two transducer 508,510 can be adjusted to one or more restriction set point by the one or more power switches 516,518 controlling each transducer 508,510 by control circuit 506.This can be realized by the control signal duty ratio controlling power switch 516,518.Such as, control circuit 506 can control power switch 516,518 by pulse width modulation (PWM), pulse frequency modulated (PFM) and/or another control method be applicable to.

As the result regulating one or two transducer 508,510 with different output voltage set point, bright as noted earlier, the magnitude of current one of at least drawn from battery 512,514 is adjusted.

In the example embodiment of Fig. 5, can be recharged battery 512,514 by main power source.Additionally and/or alternately, further illustrate as following, each BBU502,504 can comprise the one or more transducers for recharging battery 512,514.

In some instances, control circuit can be arranged in one or more BBU of BBU.Such as, Fig. 6 shows another system 600 following: this system 600 comprises two BBU602s, 604 substantially similar to the BBU502 of Fig. 5,504.As shown in Figure 6, the control circuit 606 that BBU602 comprises the transducer 508 of Fig. 5 and battery 512 and couples with transducer 508, and the control circuit 608 that BBU604 comprises the transducer 510 of Fig. 5 and battery 514 and couples with transducer 510.

Each control circuit 606,608 can be substantially similar to the control circuit 110 of Fig. 1.Such as, as described above, each control circuit 606,608 can be determined the residual life energy throughput of the battery 512,514 of its correspondence and control the transducer 508,510 of its correspondence.Additionally, each control circuit 606,608 can determine the residual life energy throughput of battery in another BBU, and/or controls the transducer in another BBU.Such as, as described above, control circuit 606 can determine the residual life energy throughput of the battery 514 of BBU604, and/or control transducer 510 adjusts the battery current from battery 514.Therefore, each control circuit 606,608 can receive one or more parameter to the residual life energy throughput (such as, from different BBU) of the residual life energy throughput (as described above) and/or another battery of determining the battery of its correspondence.

As shown in Figure 6, control circuit 606,608 communicates with one another.This can make each control circuit 606,608 provide and/or receive from information each other.Such as, the determined residual life energy throughput of battery 512 can be sent to control circuit 608 and/or control transducer 510 by control circuit 606, as mentioned above.Additionally and/or alternately, control circuit 606 can by one or more parameters of battery 512, BBU602 etc. (such as, sensor parameter, default socking out number of times, battery capacity as above etc.) be sent to control circuit 608, make control circuit 609 can determine the residual life energy throughput of battery 512.

Although Fig. 5 and Fig. 6 shows particular B BU configuration, should being apparent that, other suitable BBU can be adopted when not departing from the scope of present disclosure to configure.Such as, Fig. 7 shows another exemplary BBU700 that can use in the system 600 of the system 500 of Fig. 5 and/or Fig. 6.The BBU700 of Fig. 7 comprises transducer 704 (such as, output translator 704), one or more rechargeable batteries 702 of coupling with the input of transducer 704 and the transducer 706 (such as, input converter 706) coupled with the input of battery 702 and the input of transducer 704.The battery 702 of Fig. 7 can be substantially similar with transducer 508,510 to the battery 512,514 of Fig. 5 with output translator 704.

In the example in figure 7, input converter 706 can receive AC voltage and current or DC voltage and electric current in its input, and to battery 702 output dc voltage and electric current.Therefore, transducer 706 can comprise such as one or more AC/DC rectifier, DC/DC transducer etc., and can be coupled to AC source or DC source.

Fig. 8 shows following system 800: this system 800 comprises for providing the main power source 802 of electric power to one or more load 810 and for providing three BBU804,806,808 of non-firm power to load 810.Therefore, if main power source 802 can not load-supporting 810, then one or more BBU that can activate in BBU804,806,808 carry out power supply to load 810 and reach certain hour section.Such as, BBU804,806,808 can load-supporting 810, until the one or more batteries in BBU reach discharge off until the one or more batteries in BBU reach EOL until main power source 802 can provide enough electric power etc. to load 810.

As shown in Figure 8, BBU804,806,808 coupled in parallel.Specifically, BBU804,806, the input coupled in parallel of 808, and BBU804,806, the output-parallel of 808 couples.Alternately, BBU804,806, the input of 808 and/or export when needed can not coupled in parallel.Such as, BBU804,806, the input of 808 can not coupled in parallel, and BBU804,806, the output of 808 can coupled in parallel.In other examples, BBU804,806, the output of 808 can not coupled in parallel, and therefore can provide non-firm power to independent load.

Additionally, each BBU804 of Fig. 8,806,808 can receive AC voltage and current or DC voltage and electric current in its input, charge for the rechargeable battery in each BBU.Such as, if main power source 802 comprises AC/DC rectifier, then each BBU804,806,808 can receive DC electric power (such as, carrying out the output of automatic power supply 802).Additionally and/or alternately, each BBU804,806,808 can receive the DC electric power from another suitable source.In other examples, each BBU can receive AC electric power and convert this AC electric power to DC electric power, charges for rechargeable battery.

The BBU804,806,808 of Fig. 8 can be any suitable BBU of any one comprised in BBU disclosed herein.Such as, BBU804 can be substantially similar to the BBU502 of Fig. 5, and BBU806 can be substantially similar to the BBU of Fig. 7, and BBU808 can be substantially similar to the BBU602 of Fig. 6.In other example, two or more BBU in BBU804,806,808 can have identical BBU configuration.Such as, BBU804,806 can be substantially similar to the BBU502 of Fig. 5, and BBU808 can be substantially similar to the BBU700 of Fig. 7.

Main power source 802 can comprise one or more transducer (such as, AC/DC rectifier, DC/DC transducer etc.) and/or any other suitable power supply.

Although the system 800 of Fig. 8 comprises three BBU804,806,808, should being apparent that, when not departing from the scope of present disclosure, more or less BBU can being adopted.Such as, system 800 can comprise two BBU, five BBU, ten BBU etc.

Control circuit disclosed herein can comprise analog control circuit, digital control circuit (such as, digital signal processor (DSP), microprocessor, microcontroller etc.) or Hybrid mode circuit (such as, digital control circuit and analog control circuit).Therefore, method disclosed herein can be performed by digitial controller.Additionally, one or more parts of control circuit can be integrated circuit (IC).

In some instances, control circuit can be the system, control circuit (such as, system control card (SCC) etc.) of particular system.Such as, a control circuit can be utilized to control one or more transducers, main power source etc. disclosed herein.Alternately, each transducer, two or more transducers etc. can be controlled by the dedicated control circuit be separated with main power source control circuit when needed.Dedicated control circuit and/or system, control circuit can be positioned at particular B BU (such as, as shown in Figure 6) and/or be positioned at BBU outside.

Battery disclosed herein can be any suitable rechargeable battery, comprises such as lithium ion battery, Ni-MH battery, nickel-cadmium cell etc.In certain embodiments, in system, all batteries can comprise the rechargeable battery of identical type.Such as, in system, all batteries can comprise lithium ion battery.In other examples, in system some batteries can be the rechargeable battery of a type (such as, lithium ion battery etc.), and in system, other battery can be the rechargeable battery (such as, nickel-cadmium cell etc.) of another kind of type.

Additionally, example system disclosed herein can be adopted in any suitable application comprising the such as application of DC electric power and/or the application of AC electric power.Such as, can apply in telecommunications, use example system in information technology application etc.In certain embodiments, can in the shell (such as, data shelf, server cabinet etc.) comprising such as fixed housing and/or modular enclosure use system.

In addition, system can provide any suitable output power comprising such as AC electric power and/or DC electric power.In certain embodiments, system can provide 5VDC, 12VDC, 24VDC, 48VDC, 400VDC, 120VDC etc.

In order to the purpose of illustration and description provides the aforementioned description about embodiment.It is also not intended to exhaustive or restriction present disclosure.The individual element of specific embodiment or feature are not limited to this specific embodiment usually, but can exchange and can be used in selected embodiment when applying, even if it is also like this for not illustrated particularly or describing.Above-mentioned key element or feature can also change in many ways.Such modification is not considered to deviate from present disclosure, and all amendments are like this intended to be included in the scope of present disclosure.

Claims (11)

1., for providing a system for electric power to load, described system comprises:

First transducer;

Second transducer;

First rechargeable battery, described first rechargeable battery has capacity and the number of times of socking out circulation, and described first rechargeable battery is configured to described first converter output current;

Second rechargeable battery, described second rechargeable battery has capacity and the number of times of socking out circulation, and described second rechargeable battery is configured to described second converter output current; And

Control circuit, described control circuit is coupled to described first transducer and described second transducer, described control circuit is configured to the residual life energy throughput determining described first rechargeable battery and described second rechargeable battery based on the capacity of described first rechargeable battery and described second rechargeable battery socking out circulation separately and number of times, and it is not substantially equally control described first transducer adjustment from the electric current of described first rechargeable battery that described control circuit is configured in response to the residual life energy throughput of described first rechargeable battery and the residual life energy throughput of described second rechargeable battery, to change the minimizing speed of the residual life energy throughput of described first rechargeable battery.

2. system according to claim 1, wherein, described control circuit is configured to control the electric current of described second transducer adjustment from described second rechargeable battery.

3. system according to claim 1, wherein, described control circuit is configured to control described first transducer the electric current from described first rechargeable battery to be adjusted to the maximum current of described first rechargeable battery.

4. system according to claim 1, wherein, described first transducer and described first rechargeable battery are the parts of battery backup unit.

5. system according to claim 4, also comprises input converter, and described input converter is configured to described first rechargeable battery output voltage and electric current, and wherein, described input converter is the parts of described battery backup unit.

6. system according to claim 4, wherein, described battery backup unit is the first battery backup unit, wherein, described control circuit comprises the first control circuit being arranged in described first battery backup unit and the second control circuit communicated with described first control circuit, wherein, described second transducer, described second rechargeable battery and described second control circuit are the parts of the second battery backup unit.

7. system according to claim 1, wherein, described control circuit comprises digitial controller.

8. system according to claim 1, wherein, described first transducer comprises DC-DC converter.

9. system according to claim 1, wherein, described first transducer and described second transducer comprise the output of coupled in parallel separately.

10. system according to claim 1, also comprise the 3rd transducer and the 3rd rechargeable battery, described 3rd rechargeable battery has capacity and the number of times of socking out circulation, and described 3rd rechargeable battery is configured to described 3rd converter output current; Wherein, described control circuit is coupled to described 3rd transducer, and wherein, described control circuit is configured to the residual life energy throughput that the capacity that circulates based on the socking out of described 3rd rechargeable battery and number of times determine described 3rd rechargeable battery.

11. according to the system in claim 1-10 described in any one, wherein, described control circuit is configured to control the electric current of described first transducer adjustment from described first rechargeable battery, until the residual life energy throughput of described first rechargeable battery is substantially equal to the residual life energy throughput of described second rechargeable battery.