CN1391717A - Method for charging battery - Google Patents
Method for charging battery Download PDFInfo
- Publication number
- CN1391717A CN1391717A CN00815884A CN00815884A CN1391717A CN 1391717 A CN1391717 A CN 1391717A CN 00815884 A CN00815884 A CN 00815884A CN 00815884 A CN00815884 A CN 00815884A CN 1391717 A CN1391717 A CN 1391717A
- Authority
- CN
- China
- Prior art keywords
- voltage
- charging
- storage battery
- circuit
- along separate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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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
- H02J7/00714—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
In order to precisely determine the charging and discharging of a battery, any consumer in the battery load circuit is used as a measuring shunt. To that effect, the voltage falling into the measuring shunt is recorded by a capacitance meter and is integrated over a given time in such a way that an integrated signal is produced; a control charge switch is switched on or off on the basis of said integrated signal.
Description
The present invention relates to a kind of being used for, especially the method for the charge in batteries of mobile phone by means of give electric equipment by a kind of charging circuit of claim 1 preamble.
Do not have and direct-connected many electronics that will move of electrical network and electric equipment for temporary transient at least, especially, mainly arranged rechargeable storage battery for moving or cordless telephone.In order in mobile operating, to reuse, or in the standing part of equipment separately, otherwise in being also referred to as the own charging station of charging shell to such charge in batteries.At this moment, through a kind of charging energy, generate a kind of charging current of adjusting by the storage battery that is adopted through a kind of charging device that is connected on the electrical network mostly, and be sent on this storage battery.At this, on the one hand to note not causing overcharge of a battery especially, especially this may be directed at power loss when more frequent overcharging, and the storage battery capacity that should always provide their maximums is as much as possible arranged on the other hand.
In order to satisfy the requirement mention at last, must be according to equipment under the condition of the charge efficiency of considering storage battery, for example the autophage of mobile phone carries out boost charge.The charge efficiency of a secondary battery unit is equivalent to the efficient less than 1, thereby the accumulators delivery ratio more energy of having taken out always.People will should be called charging coefficient with the coefficient that institute's contents of decrement multiplies each other in order to obtain the magnitude of current of answering boost charge.Usually fixing this charging coefficient of setting up makes and can not overcharge and damage the smaller units with less capacity.
Usually carry out the measurement of charging current with the measuring resistance that is arranged in charging circuit.This shunt resistance is also referred to as measures [shunt (English)=along separate routes] along separate routes.Electric current in the load circuit, discharge or load current are known for some operating mode of load, and therefore normally do not measure, but determine according to the operating mode of load.For example after mould/number conversion, these two kinds of parameters are flowed to a kind of control unit, and come balance by a kind of software there.
Owing to determined discharging current or load current, so error usually in balance, occurs.It is these reasons of error that load current is subjected to the boundary condition that reckons without of its restriction, but these boundary conditions do not count balance when determining load current by the operating mode of load or running status.For example the different voltage statuss of the dispersion of electronic component, storage battery and dynamic current drain belong to these boundary conditions.
But now with necessary accuracy with under the boundary condition of considering change-the different voltage statuss of storage battery, dynamic current drain-, and under the condition of consideration by the dispersion of the electric assembly that deviation determined, the accurate measurement of charging and discharge current curves usually is very difficult, and only could implement with the workload of great number costliness.
The present invention based on task be to realize a kind of balance very accurately of charge in batteries with the equipment of simple cheap.
Accessory rights requires the method for defined in 1 preamble to set out, and illustrated feature solves this task in characterizing by claim 1.
For this reason, adopt a kind of load that is arranged in battery circuit as measuring along separate routes by claim 1, wherein, the load of this function must have a kind of and the voltage drop proportional distribution of charge or discharge electric current., make to generate the signal of a kind of expression to the proportional voltage of voltage of reduction carries out integration through a kind of time with measuring along separate routes upward by a kind of device that is used for the capacity counting to the integration of voltage drop.The signal that depends on this integration generates a kind of control signal of control controlled charging switch like this again, makes that both having surveyed charging by the capacity counter device under the situation of charging of not knowing storage battery and discharging current also surveys discharge.
This method allows to adopt the load arbitrarily with described characteristic that has contained in battery circuit.If still arrange a kind of load that adds for measuring function along separate routes, for example a kind of resistance then can adopt cheap electric device, because cancelled the possible deviation of measuring shunt that adopts on by method of the present invention.
In addition, select to measure advantage along separate routes and be within battery circuit, both gathered charging current and also gathered discharging current (load current), make when the equilibrium charging capacity to boundary condition, the possible variation that is reflected in institute's collection value compensates.
The advantage that a kind of safeties had in the battery circuit is that it has a kind of voltage drop, and the protection battery circuit for example avoids because the damage of short circuit current.
Resistance, some resistance that at first has huge deviation on its resistance value is very favourable aspect purchasing, and allows a kind of size design of battery circuit in addition.
If as measuring along separate routes, then fully phasing out, the resistance of a conducting line segment that is arranged in battery circuit of employing circuit measures acquisition expenses along separate routes.
Less discharge for the charge efficiency-storage battery that improves charging circuit compares charging-, before equilibrium charging and discharging current, multiply by charging and discharging current with different coefficients.
Realize a kind of balance more accurately by being amplified in the last along separate routes voltage that reduces of measurement.
The employing of comparator allows to regulate a kind of threshold value from its charge switch that begins to transfer.Therefore reach a kind of additional flexibility when the control charge switch, so that compensate the error when for example surveying switchover condition or realize a kind of adjustable hysteresis that stops charge switch to continue switching.
Advantage by the improvement project of claim 8 is to save the device that is used to generate control signal, and therefore is further to simplify and cost decline.
Set forth one embodiment of the present of invention by accompanying drawing 1 to 2.Show at this:
Fig. 1 is for implementing a kind of model by the circuit arrangement of the inventive method.
Fig. 2 is the distribution and the relation of the several important circuit engineering parameter when implementing by the inventive method.
Closed charging circuit on the controlled charging switch GLS in closure under the state of coupling, and give the storage battery AK that is arranged in electric equipment EG charging.This controlled charging switch GLS constitutes transistorizedly, and this transistor is a kind of corresponding wiring for the function as switching transistor has.
By a kind of charging circuit that is arranged in, for example the comparator V2 that realizes by the operational amplifier of corresponding wiring line generates the control signal ST of a kind of switch controlled charging switch GLS.
For this reason, so come the wiring of size design comparator V2, make and a kind of desirable reference voltage that especially has 0 volt of value occurs, this reference voltage is compared with a kind of integrated signal KP, wherein, when reaching the value of reference voltage by integrated signal KP, so generate control signal ST with a kind of value, make controlled charging switch GLS interrupt charging circuit.
Realize that by a kind of suitable wiring a kind of hysteresis that stops controlled charging switch GLS to continue switching also is possible.
Be alternative in this place, also integrated signal KP directly can be adopted as control signal ST.
By the capacity counter KAP formation product sub-signal KP that is arranged in charging circuit.For this reason, within the time given by timer ZG to being applied to the voltage U on the capacity counter KAP
S' carry out integration.
Voltage U
S' be to measure shunt MS to go up the voltage U that reduces
SWith a kind of first or a kind of result of second multiplication, wherein, the voltage U of reduction
SWhen negative sign and first multiplication, and when positive sign and second multiplication.Implement multiplication by a kind of amplifier V1, at this moment, for example realize this amplifier V2 by at least a operational amplifier with corresponding wiring line, so this wiring of size design makes them guarantee first and second amplification coefficients.By implementing charging current I with distinguishing the multiplying each other of these two kinds of coefficients
LWith discharging current I
EDifferent weightings therefore charge than discharge so that realize a kind of compensation-storage battery AK of charge efficiency morely.
In addition, can so select two kinds of coefficients, the feasible voltage U that ought for example reduce
SMay only have very smallly, during for the out of use value of capacity counter KAP, these coefficients realize measuring along separate routes that MS goes up the voltage U that reduces
SAmplification.
In addition selectively, also can give up and amplify and/or distinguishing multiplication, make proportional voltage U
S' in the voltage U that is equivalent to reduce aspect absolute value and/or the sign
S
A kind of safeties SI that itself is the battery circuit part is selected as measuring MS along separate routes.The resistance value of safeties SI at this in storage battery AK charging and discharge the time, voltage U
SBe responsible in the reduction that constitutes on the measurement shunt MS of safeties SI.The voltage U of this reduction
SBased on its position in battery circuit be and charging current I
LOr discharging current I
EProportional, make and do not knowing can analyzing and processing to be used for the equilibrium charging electric current I under the situation of these parameters
LWith discharging current I
EVoltage U
S
Also can adopt a kind of resistance in the battery circuit to replace safeties SI as measuring MS along separate routes.Also can adopt a conducting line segment in the battery circuit as measuring MS along separate routes, so that for example reduce cost, even because a conducting line segment has a kind of-small-resistance value, and the therefore same voltage U that reduces
S
Also exist and will implement to constitute by a kind of circuit of the inventive method the possibility of integrated circuit, wherein, the value digitlization that will gather makes and for example adopts them by a kind of control unit that is used for balance.
For this reason, especially in some discrete time interval given, can carry out integration by timer.
At this, for example can adopt microprocessor in a kind of Already in electric equipment as control unit, wherein, must carry out the adaptive of software and this method.
Shown in Figure 2 at unknown charging current I
LWith discharging current I
ESituation under, implement to be used for charge in batteries by balance method of the present invention the time, the distribution of several important circuit engineering parameters and relation.Reduce voltage showed to be distributed in this be optional, and only use illustrate interrelated.By MS goes up the voltage U that reduces based on measuring along separate routes
SBalance, should satisfy following condition at this:
Q
L＝Q
E
Q
LThe electric charge (charging) that expression is imported, and from following formula, draw:
Q
L=I
L* t=(U
S* t)/R
S, U
SFor positive,
Q
EThe electric charge (discharge) that expression is obtained, and from following formula, draw:
Q
E=I
E* t=(U
S* t)/R
S, U
SFor what bear,
In the formula, R
SExpression is adopted and is measured the resistance value of MS along separate routes, and the t express time.
For a kind of times selected interval (0; τ) carry out voltage U to reducing
SIntegration, make to draw a kind of integrated signal KP as follows:
Draw from these are interrelated, storage battery AK is underfill when integrated signal KP is not equal to zero value.Therefore when these values of integrated signal KP with controlled charging switch GLS closure (connection).
Under described value and condition, for example relate to that reason for circuit engineering may depart from practice, or approaching ideal value.
Described embodiment only shows the part of the form of implementation possible by the present invention.Therefore the professional who engages in this field has the ability, create many other forms of implementation by favourable modification, and do not change the accurately charging and the discharge of balance storage battery under the situation of characteristic of the present invention (essence)-do not knowing to charge and discharging current at this.Equally should be by the present invention in company with having comprised these forms of implementation.
Claims (8)
1. be used for by means of a kind of charging circuit (U
L, R) give electric equipment (EG), especially the method for at least a storage battery (AK) of mobile phone charging is characterized in that,
A) adopt a kind of load that is arranged in storage battery (AK) circuit as measurement shunt (MS), a kind of and charging current I
LOr discharging current I
EVoltage (the U of proportional distribution
S) in this load, reduce,
B) by a kind of device (KAP) that is used for capacity counting so to (MS) goes up the voltage (U that reduces measuring along separate routes
S) proportional voltage (U
S') carry out integration through the time, make to generate a kind of integrated signal (KP),
C) depend on the control signal (ST) that integrated signal (KP) generates a kind of switch controlled charging switch (GLS),
D) by control signal (ST) switch controlled charging switch (GLS) like this, make volumeter counting apparatus (KAP) both survey the charging of storage battery (AK), also survey the discharge of storage battery (AK).
2. by the method for claim 1, it is characterized in that, adopt a kind of safeties (SI) of storage battery (AK) circuit that are arranged in as measuring (MS) along separate routes.
3. by the method for claim 1, it is characterized in that, adopt a kind of resistance of storage battery (AK) circuit that is arranged in as measuring (MS) along separate routes.
4. by the method for claim 1, it is characterized in that the resistance that adopts a kind of lead that is arranged in storage battery (AK) circuit is as measuring (MS) along separate routes.
5. by the method for one of above claim, it is characterized in that will measuring along separate routes, (MS) goes up the voltage (U that reduces
S) by amplifier stage (V1) when the negative sign and a kind of first multiplication, and when positive sign and a kind of second multiplication, make it as proportional voltage (U
S') be sent on the volumeter counting apparatus (KAP).
6. by the method for one of above claim, it is characterized in that, will make and measure the voltage (U that reduction is gone up in shunt (MS) by amplifier stage (V1)
S) absolute value of a kind of coefficient of multiplying each other is chosen as greater than 1, makes and will measure the voltage (U that goes up reduction along separate routes
S) as proportional voltage (U
S') be sent on the volumeter counting apparatus (KAP).
7. by the method for one of above claim, it is characterized in that, generate control signal (ST), as the comparative result of integrated signal (KP) with a kind of adjustable threshold by a kind of comparator stage (V2).
8. by the method for one of claim 1 to 6, it is characterized in that, adopt integrated signal (KP) as control signal (ST).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19944737A DE19944737A1 (en) | 1999-09-17 | 1999-09-17 | Method of charging an accumulator |
| DE19944737.3 | 1999-09-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1391717A true CN1391717A (en) | 2003-01-15 |
Family
ID=7922454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00815884A Pending CN1391717A (en) | 1999-09-17 | 2000-09-15 | Method for charging battery |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1214772A1 (en) |
| CN (1) | CN1391717A (en) |
| AU (1) | AU1379801A (en) |
| DE (1) | DE19944737A1 (en) |
| WO (1) | WO2001022553A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680901A (en) * | 2012-05-09 | 2012-09-19 | 北京宏达天恒科技有限公司 | Electronic energy detection system and method |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2361754A1 (en) * | 1976-08-11 | 1978-03-10 | Accumulateurs Fixes | METHOD AND DEVICE FOR MONITORING THE CHARGE AND DISCHARGE OF AN ACCUMULATOR BATTERY |
| FR2406900A1 (en) * | 1977-10-18 | 1979-05-18 | Accumulateurs Fixes | ACCUMULATOR CHARGING PROCESS |
| NZ188610A (en) * | 1977-11-04 | 1982-08-17 | Minitronics Pty Ltd | Current integrating battery charger circuit |
| US4679000A (en) * | 1985-06-20 | 1987-07-07 | Robert Clark | Bidirectional current time integration device |
| DE3832839C2 (en) * | 1988-09-28 | 1999-07-01 | Ind Automation Mikroelektronik | Procedure for monitoring rechargeable batteries |
| DE4142760C1 (en) * | 1991-12-23 | 1993-04-08 | Leopold Kostal Gmbh & Co Kg, 5880 Luedenscheid, De | Monitor for current circuit of appliance, e.g. separate lamps of motor vehicle - uses differential amplifier as comparator with inputs across fuse and output supplying warning appts. if heat exceeds threshold value |
| US5629604A (en) * | 1992-11-13 | 1997-05-13 | Zenith Data Systems Corporation | Computer power supply system |
| US5517277A (en) * | 1993-12-10 | 1996-05-14 | Nikon Corporation | Battery pack |
| US5633573A (en) * | 1994-11-10 | 1997-05-27 | Duracell, Inc. | Battery pack having a processor controlled battery operating system |
| JPH08136628A (en) * | 1994-11-11 | 1996-05-31 | Fujitsu Ltd | Device for monitoring capacity of battery |
| DE19507959C1 (en) * | 1995-03-07 | 1996-07-18 | Daimler Benz Ag | Current measuring device for automobile onboard supply network |
| JPH0946916A (en) * | 1995-08-02 | 1997-02-14 | Honda Motor Co Ltd | Charging controller |
| US5869949A (en) * | 1996-10-02 | 1999-02-09 | Canon Kabushiki Kaisha | Charging apparatus and charging system for use with an unstable electrical power supply |
-
1999
- 1999-09-17 DE DE19944737A patent/DE19944737A1/en not_active Ceased
-
2000
- 2000-09-15 AU AU13798/01A patent/AU1379801A/en not_active Abandoned
- 2000-09-15 EP EP00975766A patent/EP1214772A1/en not_active Withdrawn
- 2000-09-15 CN CN00815884A patent/CN1391717A/en active Pending
- 2000-09-15 WO PCT/DE2000/003218 patent/WO2001022553A1/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680901A (en) * | 2012-05-09 | 2012-09-19 | 北京宏达天恒科技有限公司 | Electronic energy detection system and method |
| CN102680901B (en) * | 2012-05-09 | 2014-09-03 | 北京宏达天恒科技有限公司 | Electronic energy detection system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1214772A1 (en) | 2002-06-19 |
| AU1379801A (en) | 2001-04-24 |
| WO2001022553A1 (en) | 2001-03-29 |
| DE19944737A1 (en) | 2001-03-29 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |