CN101577441A - Apparatus and method for controlling power - Google Patents
Apparatus and method for controlling power Download PDFInfo
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- CN101577441A CN101577441A CNA200810169270XA CN200810169270A CN101577441A CN 101577441 A CN101577441 A CN 101577441A CN A200810169270X A CNA200810169270X A CN A200810169270XA CN 200810169270 A CN200810169270 A CN 200810169270A CN 101577441 A CN101577441 A CN 101577441A
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- battery
- batteries
- balancing unit
- controlled
- operating characteristic
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
Abstract
An apparatus and method for controlling a power source, which apparatus includes a power source unit including a plurality of power cells connected in parallel, a balancing unit coupled to the plurality of power cells of the power source unit, and a controller configured to control the balancing unit to balance operational characteristics of the plurality of power cells.
Description
The cross reference of related application
The application relates to and the priority of the Korean Patent No.10-2008-42146 that requires to submit on May 7th, 2008 and the Korean Patent No.10-2008-71358 that submits on July 22nd, 2008, merges its full content by reference at this.
Technical field
The disclosure relates to the electrical power control appliance with control unit and is used for controlling the method for electrical power.The control of described control unit is in the I/O information of each electric power source under the state that a plurality of electric power sources are connected in parallel.
Background technology
Fig. 1 is the block diagram of system of the use power supply of prior art.
As shown in fig. 1, system comprises CPU (CPU) 14, power supply 10 and such as the display unit of LCD (LCD) device 16 and such as being coupled to power supply 10 and the LCD device 16 sub-control unit with the microcomputer 15 of control data or signal.
Power supply 10 comprises charger 13, and described charger 13 can be given place of current power supply 11 and such as the inferior power source charges of battery 13a.
Simultaneously, in Fig. 1, exemplarily be integrated in the charger 13 with explanation battery 13a in charger 13 or by charger 13 chargings as the battery 13a of inferior power supply.Yet battery 13a can be arranged to described charging independent.
Fig. 2 illustrates the block diagram that has a plurality of batteries that are connected in parallel and electrical power is applied to the power subsystem 100 of system.
As shown in Figure 2, a plurality of battery 21 and 22 is for being connected in parallel.System 25 is driven by battery 21 and 22.Protected location 24 be coupled to battery 21 and 22 and described system to protect them.Provide charge/discharge switch 23 battery 21 and 22 is charged and discharge.
In said structure, only use to have the operating time that a jumbo battery or two or more batteries that is connected in parallel come the inferior power supply in the increase system (for example portable electron device).
When two or more batteries were connected in parallel with increase during the operating time, owing to the impedance contrast during the charge or discharge, the electric current that is applied to each battery may be different.
That is, when discharge finished, one in the battery had big discharging current and is in the state that discharge finishes with operation protection unit 24 and another battery.
In addition, because the loop path difference of the difficulty of battery middle impedance coupling and the battery that is connected in parallel, some batteries may be degenerated on function.
In addition, when there is short circuit in the particular battery in being in the state that battery is connected in parallel, concentrated big relatively electric current.This may cause the blast of system and on fire.
Even one in the battery that only is connected in parallel is broken down, all batteries all can not use.
In order to address these limitations,, be essential such as the protected location 24 of positive temperature coefficient (PTC), temperature-compensation circuit or additional circuit for each battery.
Therefore, owing to use extra protected location, so do not recommend to use the battery that is connected in parallel.
Summary of the invention
Embodiment provides the power control apparatus of the imbalance problem between the charge/discharge current that can solve each power supply (battery) and is used for the method for power controlling.
The power control apparatus of the imbalance problem between the charge/discharge current of each power supply that embodiment also provides the impedance that is designed to make each power supply to match each other to be connected in parallel with solution and be used for the method for power controlling.
Embodiment also provides the current balance type parts that are designed to make such as variable resistance to be coupled to each power supply with the power control apparatus of the balance between the charge/discharge current of controlling each power supply be used for the method for power controlling.
Embodiment also provides power control apparatus and is used for the method for power controlling, described power control apparatus is designed to by directly will being coupled to each power supply such as the current balance type parts as the variable resistance of control unit with the total impedance that makes each power supply and each power supply under the situation of the bulk properties of not considering each power supply (internal driving of each power supply+by the external impedance of variable resistance) coupling, thereby makes the charging current and/or the discharging current of each power supply of being connected in parallel balance each other.
Embodiment also provides power control apparatus, described power control apparatus is designed such that by using the control such as the current balance type parts of pulse width modulation (PWM) control that the charging current of each power supply that is connected in parallel and/or discharging current are balanced each other, thereby solves the imbalance problem between the electric current of each power supply.
As the embodiment that is used for controlling PWM control, the switch that is used for PWM control is connected in series to the example of each battery as the current balance type parts.Control the on/off duration of each switch by controller according to the recognition result of the impedance of the charge/discharge current amount of each battery or each battery, with the duty ratio (100%, 87.5% and 77.7%) of control PWM, make the charge/discharge current balance of each battery thus.
Embodiment also provides the equipment and the method for power controlling of being used for, and it is that each battery is carried out charging operations that described equipment and method can be utilized a charger that is coupled to battery and protector 34; discharge operation; and protection operation and make the charge/discharge current of being scheduled to flow in each battery by controlling to control according to the monitoring result of the charge/discharge current (or impedance of each battery) of each battery as the variable resistance of the current balance type parts (CBC) that are connected in series to each battery or PWM duty switch (duty switch) as the microcomputer 37 of controller.
In one embodiment, be used for the equipment of power controlling and comprise the power subsystem with a plurality of batteries, described a plurality of batteries are connected in parallel and wherein at least one can be recharged and discharge; Be coupled to the current balancing unit of the battery of power subsystem; And controller, described controller is used for according at least one the recognition result Control current balancing unit in the electric current of the state of power subsystem or each battery.
In another embodiment, being used for the method for power controlling comprises the electric current or the impedance of the battery of the power subsystem that identification is connected in parallel; Be operatively connected to the current balance type parts of battery according to recognition result; And charge the battery by controlled current balance type parts.
From the detailed description that hereinafter provides, other range of application of the present invention will become apparent.Yet, should be understood that in brief description the preferred embodiments of the present invention, detailed description and particular instance only provide by illustrative mode, according to this detailed description, multiple variation within the spirit and scope of the present invention and modification will become apparent those skilled in the art.
Description of drawings
Invention will be more fully understood by the detailed description and the accompanying drawings that hereinafter provide, described description and accompanying drawing only provide to being illustrated property and thereby do not limit the present invention, and wherein:
Fig. 1 is the block diagram of system of the use power supply of prior art;
Fig. 2 has a plurality of batteries that are connected in parallel and applies the block diagram of electrical power to the power subsystem 100 of system;
Fig. 3 is the equipment of power controlling that is used for and the block diagram of method that illustrates according to embodiment;
Fig. 4 illustrates the flow chart that charging operations is carried out in each impedance in the power supply that is connected in parallel by control;
Fig. 5 illustrates the flow chart that discharge operation is carried out in each impedance in the power supply that is connected in parallel by control;
Fig. 6 is each the block diagram of Current Control that illustrates according in the power supply that is connected in parallel of another embodiment;
Fig. 7 is the block diagram of current charges in each that is illustrated in the power supply of power subsystem under the situation of the control that does not have current balancing unit;
Fig. 8 is the block diagram of current charges in each that illustrates in the power supply of power subsystem of the control by current balancing unit;
Fig. 9 a, 9b and 9c illustrate the curve chart by the current balance type between the power supply of the control of pulse duration; The control of described pulse duration starts by each the control in the PWM duty switch of the current balancing unit of Fig. 8; And
Figure 10 is the flow chart according to another embodiment.
Embodiment
To at length be introduced embodiment of the present disclosure now, the example is shown in the drawings.
In the following description, from the generic term that just is being widely used, select term.In the term some are created arbitrarily by the applicant, but its operation and implication are described in detail in specification.Therefore, these terms will be counted as simpler term scarcely, and will understand by its operation/implication.
For example, the current balance type parts are to be used for controlling being input to power supply or from the unit of the electric current of power supply output.For example, the current balance type parts can be variable resistance or the unit that is used for PWM control.Yet the disclosure is not limited to this structure.That is, other unit that is used for the impedance matching between the power supply or is used for the balance between the power supply can be used as the current balance type parts.
In addition, in the disclosure, although described the control of electric current or impedance (comprising resistance),, according to general current/voltage formula (V=IR), add the unit be used for controlling power source voltage and can be counted as the unit that is used for realizing identical purpose and solution.
In addition, battery is represented the power supply that can be recharged and discharge.
(not shown according to equipment that is used for power controlling of the present disclosure and a charger that battery and protector 34 are coupled in the method utilization; but see Fig. 1) carry out charging operations, discharge operation and protection operation individually and control variable resistance (36 among Fig. 3) or the PWM duty switch (64 among Fig. 6) that is connected in series to each battery according to the monitoring result of the charge/discharge current (or impedance of each battery) of battery for each battery by microcomputer 37 as controller, so control makes predetermined charge/discharge current flow in each battery.
To be described in detail with reference to the attached drawings feature of the present disclosure, wherein, when system comprises a plurality of batteries 31, when for example six batteries and described six batteries all broke down, the main switch (Fig. 3 38) that is connected to battery was disconnected, thereby and system 35 separate fully.
Fig. 3 is the equipment of power controlling that is used for and the block diagram 300 of method that illustrates according to embodiment.
As shown in Figure 3, power control apparatus comprises: power subsystem has a plurality of battery 31a, 31b and 31c that can be recharged and discharge and be connected in parallel; Current balancing unit 36 has a plurality of current balance type parts (variable resistance) 36a, 36b and 36c that are coupled to each battery 31a, 31b and 31c; And controller 37, be used for according to the charging of the state of power subsystem 31 or power supply 31a, 31b and 31c and at least one check result control battery 31a, 31b and the on/off of 31c or current balance type parts 36a, 36b and the 36c of Control current balancing unit 36 in the discharging current.Described equipment further comprises the charge/discharge switch of the charge/discharge on/off that is used for carrying out battery.
In said structure, battery 31a, the 31b of power subsystem and 31c is connected in parallel and current balance type parts 36a, 36b and 36c and each battery 31a, 31b and 31c are connected in series.
In this embodiment, current balance type parts 36a, 36b and 36c can be the variable resistances that is used for controlling changeably the charge/discharge current of each battery.
Current balance type parts 36a, the 36b of controller 37 Control current balancing units 36 and 36c are so that the impedance of battery 31a, the 31b of power subsystem 31 and 31c matches each other and do not consider each battery 31a, the 31b of power subsystem 31 and the inner/outer characteristic of 31c.
That the application considered and/or with impedance that the battery of power subsystem is complementary be the internal driving of each battery and current balancing unit corresponding variable resistance external impedance and.
The current balance type parts of each battery of power subsystem are coupled in controller control under the situation of the inner/outer characteristic of considering power subsystem, thereby make the impedance of each battery to match each other.
In said structure, as the microcomputer of controller according to the impedance of each battery or/and the monitoring result Control current equalizing feature of charge/discharge current makes the impedance of each battery to match each other.
According to method, when the impedance variation of each battery, charging and the charging current of interdischarge interval battery or discharging current become and differ from one another by microcomputer monitoring and control group.In this case, microcomputer control makes charging current or discharging current become as the variable resistance of current balance type parts to be equal to each other.
Therefore, can use the battery that is connected in parallel and can optionally omit PTC and temperature-compensation circuit.So, can reduce production cost.
Fig. 4 is the flow chart that charging operations is carried out in impedance that each power supply that is connected in parallel by control is shown.
As shown in Figure 4, read power information as the microcomputer of controller, for example the magnitude of voltage of the current value of the number of battery, each battery, each battery (S401).
The state of each battery of information Recognition that the microcomputer utilization is read.When in the battery at least one is in normal condition (S403), the poised state of the charging current of each battery monitored (S405).
Controller is in abnormality or/and charging current is in abnormality (non-equilibrium state) (S409) according to the battery of recognition result identification power subsystem.
Controller is controlled the current balance type parts (S411) that are coupled to each battery according to recognition result.
After above-mentioned steps, carry out by the identifying operation of the power subsystem operated system that comprises battery and the charging operations (S413, S415, S417, S419 and S421) by each current balance type component controls.
When system is in the abnormal operation state, under following charge condition, carry out charging operations (S421).
Normal fully charge condition: 1) cell voltage is 4.2 ± 1%, 2) taper electric current (tapercurrent) is less than 10% of charging current.When satisfying these two conditions, think that battery is fully charged.
Simultaneously, when the charging current balance of all batteries, carry out charging operations (S407) according to the monitoring result of S405.
Fig. 5 is the flow chart that discharge operation is carried out in impedance that each power supply that is connected in parallel by control is shown.
As shown in Figure 5, read power information as the microcomputer of controller, for example the magnitude of voltage of the current value of the number of battery, each battery, each battery (S501).
The state of each battery of information Recognition that the microcomputer utilization is read.When in the battery at least one is in normal condition (S503), the poised state of the discharging current of each battery monitored (S505).
Controller is in abnormality or/and discharging current is in abnormality (non-equilibrium state) (S509) according to the battery of recognition result identification power subsystem.
Controller is controlled the current balance type parts (S511) that are coupled to each battery according to recognition result.
Carry out discharge operation/by controlled current balance type parts to the operation (S513,515 and 517) of predetermined system mode.
Simultaneously, when whole discharging current balance, carry out discharge operation (S507) according to the monitoring result of S505.When whole discharging currents of battery are all uneven, do not carry out discharge operation.
For above-mentioned step, if below will describe the identifying operation that all batteries is in normal condition.
Equipment is designed so that during system's guiding only has the battery above 3.6V to be discharged.
Simultaneously, equipment is designed so that further the battery that only has normal system off voltage (3.1-3.5V) during system operation is discharged.
Simultaneously, when all batteries all defect occurred, this was considered to discharge fault and does not carry out discharge operation.
In addition, microcomputer is recognized each battery and is monitored the charge/discharge current of each battery.When the charge/discharge current that monitors each battery did not match, microcomputer control variable resistance was so that the charge/discharge current balance of each battery.In charge/discharge operating period, whether microcomputer keeps the monitoring battery to be out of order with the identification battery.
Simultaneously, when all batteries were discharged into system's off voltage, system became sleep pattern.
Above-mentioned flow chart only is exemplary and therefore can changes the order of flow chart in the scope of the present disclosure.
Fig. 6 is the block diagram that illustrates according to the Current Control of each power supply that is connected in parallel of another embodiment.
At first, will the operation summary of this embodiment be described.
Under the state that each battery is connected in parallel, for the uneven defective of the charge/discharge current that solves each battery, the switch that is used for PWM control is connected in series to the example of each battery as the current balance type parts.Recognition result according to the impedance of the charge/discharge current amount of each battery or each battery is controlled the duty ratio (100%, 87.5% and 77.7%) of the on/off duration of each switch with control PWM by controller, make the charge/discharge current balance of each battery thus.
As shown in Figure 6, the equipment of this embodiment comprises the adapter 62 that is used for changing the alternating current that applies; System 67 for example, such as the portable system of portable digital assistance, and applies the output current of adapter 62 thereon; Have a plurality of battery 61a, 61b and 61c and be recharged the power subsystem 61 that device charges; And current balancing unit 64, it is used for making by controller 69 according to the recognition result of the impedance of the charge/discharge current amount of each battery or each battery the charge/discharge current balance of each battery.System 67 comprises current balancing unit 64 and is used for controlling the controller 69 of power subsystem 61.Controller 69 comprises the PWM controller 69a that is used for according to each current balance type parts (for example 64a, 64b and 64c) of the recognition result Control current balancing unit of the impedance of the charge/discharge current amount of each battery or each battery.
Needless to say, the PWM controller can be arranged on the outer side of controller, or controller itself plays the PWM controller.
According to this embodiment, according to the recognition result of the impedance of the charge/discharge current amount of each battery 61a, 61b and 61c or each battery on/off duration by controller 69 control PWM duty switch 64a, 64b and 64c so that the duty ratio (100%, 87.5% and 77.7%) of control PWM, make the charge/discharge current balance of each battery thus.
Fig. 7 is the block diagram 700 that is illustrated in and does not have current balancing unit the current charges in each power supply of power subsystem under the situation of control of (Fig. 6 64).
As shown in Figure 7, battery 71a, the 71b of power subsystem 71 and 71c utilize electric current differently to be charged by charger 73.
When electric current is charged into each battery, produce poor between the charging current of each battery owing to the impedance contrast between each battery.For example, battery 71a charges with 70mA, and battery 71b charges with 80mA, and battery 71c charges with 90mA.
In the above description, although exemplarily explained charging current, discharging current is suitable for too.
Fig. 8 is the block diagram 800 that the current charges in each power supply of the power subsystem by Control current balancing unit 84 is shown.
Except being used for the microcomputer 87 of Control current balancing unit and power subsystem 81 current balancing unit 84 being provided between charger and the power subsystem and providing, the embodiment of Fig. 8 is similar to the embodiment of Fig. 7.
Therefore, controller according to PWM duty switch 84a, the 84b of the recognition result Control current balancing unit 84 of the charge/discharge current amount of each battery 81a, the 81b of power subsystem and 81c and 84c so that the charge/discharge current balance of each battery.
Fig. 9 a, 9b and 9c are the curve charts that illustrates by current balance type between the power supply of pulse width control, and the control of described pulse duration starts by PWM duty switch 84a, the 84b of the current balancing unit 84 of Fig. 8 and each the control among the 84c.
As shown in Fig. 9 a, in the battery 81a of Fig. 8, be applied in 100% being employed of original clock cycle of the waveform of power, as the on-time of PWM switch 84a, thereby make the duty ratio of PWM be controlled to 100%, and therefore battery 81b charge with 70mA.
As shown in Fig. 9 b, in the battery 81b of Fig. 8, be applied in power waveform the original clock cycle 87.5% be employed the on-time of making PWM duty switch 84b, make the duty ratio of PWM be controlled to 87.5%, and therefore battery 81a charges with 70mA.
As shown in Fig. 9 c, in the battery 81c of Fig. 8, be applied in power waveform the original clock cycle 77.7% be employed the on-time of making PWM duty switch 84c, make the duty ratio of PWM be controlled to 77.7%, and therefore battery 81c charges with 70mA.
As mentioned above, control PWM duty ratio (100%, 87.5% and 77.7%) by the on/off duration of control PWM duty switch, make the charge/discharge current balance of each battery thus.
Simultaneously, when the PWM duty ratio in the discharge operation that is controlled at the battery that is connected in parallel, control described PWM duty ratio and make in the battery at least one be discharged.That is, control described PWM duty ratio and make the discharge of all batteries of being connected in parallel at specific time point not be disconnected, stably electric current is applied to system thus.
Figure 10 is the flow chart according to another embodiment.
Flow process Figure 100 of Figure 10 illustrates, according to the recognition result of the impedance of the charge/discharge current amount of each battery 61a, 61b and 61c or each battery on/off duration by controller 69 control PWM duty switch 64a, 64b and 64c so that the duty ratio (100%, 87.5% and 77.7%) of control PWM, make the charge/discharge current balance of each battery thus.
In the operation of Figure 10, except wherein according to the recognition result of the impedance of the charge/discharge current amount of each battery 61a, 61b and 61c or each battery on/off duration by controller 69 control PWM duty switch 64a, 64b and 64c so that the operation S1011 of the duty ratio (100%, 87.5% and 77.7%) of control PWM, the operation of all operations and Figure 4 and 5 basic identical and therefore at this with the descriptions thereof are omitted.
Simultaneously, in Fig. 4,5 and 10 embodiment, although controller according to the charge or discharge electric current of each battery Control current balancing unit exemplarily, the disclosure is not limited to this configuration.For example, controller can be according to the impedance Control current balancing unit of each battery.
As previously mentioned, according to equipment and the method that is used for power controlling of the present disclosure, for the charging current that makes each battery in the state that is connected in parallel at battery or at least one coupling in the discharging current, current balance type parts such as variable resistance are connected in series to each battery, make all impedances of each battery match each other, no matter and the characteristic of battery how.
In addition, the disclosure relates to the equipment and the method for power controlling of being used for, and described equipment and method can each battery utilizes the controller power controlling so that the impedance of each battery is matched each other by variable resistance is connected in series to.
In addition, the disclosure relates to the equipment and the method for power controlling of being used for, and described equipment and method can make impedance matching by the current balance type parts by control such as the variable resistance that is connected to each battery under the situation of the characteristic of considering each battery.
The matched impedance of each battery be the internal driving of each battery and each variable resistance impedance and.
According to the disclosure, make the impedance of each battery match each other according to the monitoring result of the charge/discharge current of each battery by microcomputer Control current balancing unit, control charge/discharge current thus equably.
Therefore, can use a plurality of batteries that are connected in parallel and can optionally omit PTC and temperature-compensation circuit.Therefore, can reduce production costs.
In addition, because battery is independently controlled, so can prevent the functional deterioration that loop path difference and battery impedance coupling defective by many batteries of correlation technique cause.
According to the foregoing description, come balance to be in the charge/discharge current of each battery in the state that battery is connected in parallel by the following method: 1) in the charging of each battery that identification is connected in parallel or/and after the discharging current by the PWM duty ratio or the impedance or 2 of mating each battery such as the control of the current balancing unit of variable resistance) the control battery makes and utilizes current balancing unit that the impedance of battery is matched each other after the current impedance of each battery of identification.
Although described these embodiment, should be understood that those skilled in the art can design a plurality of other the modification and embodiment of the spirit and scope that belong to principle of the present disclosure with reference to its a plurality of illustrative embodiment.More particularly, in the scope of the disclosure, accompanying drawing and claims, a plurality of variations and the modification of the layout during building block and/or object combination are arranged are possible.Except a plurality of variations and modification of building block and/or layout, replacing use also will be tangible to those skilled in the art.
Claims (20)
1. equipment that is used for controlling power supply, described equipment comprises:
Power subsystem comprises a plurality of batteries that are connected in parallel;
Balancing unit is coupled to described a plurality of batteries of described power subsystem; And
Controller is configured to be used for controlling the operating characteristic of described balancing unit with the described a plurality of batteries of balance.
2. equipment as claimed in claim 1, wherein said controller are controlled described balancing unit makes the described operating characteristic of described a plurality of batteries match each other substantially.
3. equipment as claimed in claim 2, the described operating characteristic of wherein said a plurality of batteries comprises each electric current that is used for to described a plurality of battery charge, and described controller is controlled described balancing unit and matched each other basically to described each electric current of described a plurality of battery charge so that be used for.
4. equipment as claimed in claim 2, the described operating characteristic of wherein said a plurality of batteries comprises each discharging current from described a plurality of battery discharges, and described controller is controlled described balancing unit so that match each other basically from described each discharging currents of described a plurality of battery discharges.
5. equipment as claimed in claim 2, the described operating characteristic of wherein said a plurality of batteries comprises each impedance of described a plurality of batteries, and described controller is controlled described balancing unit so that described each impedance of described a plurality of batteries matches each other basically.
6. equipment as claimed in claim 5, wherein the impedance of the respective battery internal driving that equals described respective battery adds the external impedance that is included in the corresponding equalizing feature in the described balancing unit.
7. equipment as claimed in claim 2, wherein said balancing unit comprises a plurality of equalizing features, described a plurality of equalizing features by the series connection and one to one mode be connected respectively to described a plurality of battery.
8. equipment as claimed in claim 7, wherein said a plurality of equalizing features are variable resistances, and described controller is controlled described a plurality of variable resistance and made the described operating characteristic of described each battery match each other.
9. equipment as claimed in claim 7, wherein said a plurality of equalizing features are switches, and the on/off duration that described controller is controlled described a plurality of switches makes the described operating characteristic of described each battery match each other.
10. equipment as claimed in claim 1 further comprises:
Main switch, described main switch are connected to described a plurality of battery and are configured to be switched on or switched off described a plurality of battery to certain connection from the system of described a plurality of battery received powers.
11. a method that is used for controlling power supply, described method comprises:
The operating characteristic of the balancing unit of the power subsystem that comprises a plurality of batteries that are connected in parallel with the described a plurality of batteries of balance is coupled in control.
12. controlling described balancing unit, method as claimed in claim 11, wherein said controlled step make the described operating characteristic of described a plurality of batteries match each other basically.
13. method as claimed in claim 12, the described operating characteristic of wherein said a plurality of batteries comprises each electric current that is used for to described a plurality of battery charge, and described controlled step is controlled described balancing unit and matched each other basically to described each electric current of described a plurality of battery charge so that be used for.
14. method as claimed in claim 12, the described operating characteristic of wherein said a plurality of batteries comprises each discharging current from described a plurality of battery discharges, and described controlled step is controlled described balancing unit so that match each other basically from described each discharging currents of described a plurality of battery discharges.
15. method as claimed in claim 12, the described operating characteristic of wherein said a plurality of batteries comprises each impedance of described a plurality of batteries, and described controlled step is controlled described balancing unit so that described each impedance of described a plurality of batteries matches each other basically.
16. method as claimed in claim 15, wherein the impedance of the respective battery internal driving that equals described respective battery adds the external impedance that is included in the corresponding equalizing feature in the described balancing unit.
17. method as claimed in claim 12, wherein said balancing unit comprises a plurality of equalizing features, described a plurality of equalizing features by the series connection and one to one mode be connected respectively to described a plurality of battery.
18. method as claimed in claim 17, wherein said a plurality of equalizing features are variable resistances, and described controlled step is controlled described a plurality of variable resistance and made the described operating characteristic of described each battery match each other.
19. method as claimed in claim 17, wherein said a plurality of equalizing features are switches, and the on/off duration that described controlled step is controlled described a plurality of switches makes the described operating characteristic of described each battery match each other.
20. method as claimed in claim 11 further comprises:
Be switched on or switched off described a plurality of battery to certain connection from the system of described a plurality of battery received powers.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020080042146 | 2008-05-07 | ||
| KR1020080042146A KR20090116290A (en) | 2008-05-07 | 2008-05-07 | Apparatus and method for controlling power |
| KR10-2008-0042146 | 2008-05-07 | ||
| KR1020080071358A KR101008755B1 (en) | 2008-07-22 | 2008-07-22 | Apparatus and Method for controlling Power |
| KR1020080071358 | 2008-07-22 | ||
| KR10-2008-0071358 | 2008-07-22 |
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| Publication Number | Publication Date |
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| CN101577441A true CN101577441A (en) | 2009-11-11 |
| CN101577441B CN101577441B (en) | 2013-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810169270XA Expired - Fee Related CN101577441B (en) | 2008-05-07 | 2008-10-10 | Apparatus and method for controlling power |
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| KR (1) | KR20090116290A (en) |
| CN (1) | CN101577441B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102651567A (en) * | 2012-04-28 | 2012-08-29 | 陈明军 | Battery pack and system of battery pack |
| CN103199583A (en) * | 2013-03-28 | 2013-07-10 | 华为技术有限公司 | Battery management method and device and equipment powered by battery |
| CN104617343A (en) * | 2013-11-05 | 2015-05-13 | 中国空间技术研究院 | Storage battery pack ground charging method |
| CN106684959A (en) * | 2011-03-25 | 2017-05-17 | Nec 能源元器件株式会社 | Power storage system and secondary battery control method |
| CN107509389A (en) * | 2015-03-20 | 2017-12-22 | 株式会社Ａｍｓ | Anti-electric shock apparatus and its method during immersion |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4502000A (en) * | 1983-07-19 | 1985-02-26 | Energy Development Associates, Inc. | Device for balancing parallel strings |
| CN100389531C (en) * | 2006-01-11 | 2008-05-21 | 黄承昂 | Three-stage charging voltage regulator |
| CN101145700A (en) * | 2007-07-30 | 2008-03-19 | 张志贤 | A serial connection charge balance control circuit and control method for smart battery group |
-
2008
- 2008-05-07 KR KR1020080042146A patent/KR20090116290A/en not_active Application Discontinuation
- 2008-10-10 CN CN200810169270XA patent/CN101577441B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106684959A (en) * | 2011-03-25 | 2017-05-17 | Nec 能源元器件株式会社 | Power storage system and secondary battery control method |
| CN106684959B (en) * | 2011-03-25 | 2019-05-14 | Nec 能源元器件株式会社 | Power storage system and secondary cell control method |
| CN102651567A (en) * | 2012-04-28 | 2012-08-29 | 陈明军 | Battery pack and system of battery pack |
| CN103199583A (en) * | 2013-03-28 | 2013-07-10 | 华为技术有限公司 | Battery management method and device and equipment powered by battery |
| CN104617343A (en) * | 2013-11-05 | 2015-05-13 | 中国空间技术研究院 | Storage battery pack ground charging method |
| CN107509389A (en) * | 2015-03-20 | 2017-12-22 | 株式会社Ａｍｓ | Anti-electric shock apparatus and its method during immersion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101577441B (en) | 2013-09-11 |
| KR20090116290A (en) | 2009-11-11 |
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