CN100349355C - Charging device and charging method - Google Patents
Charging device and charging method Download PDFInfo
- Publication number
- CN100349355C CN100349355C CNB2005100788557A CN200510078855A CN100349355C CN 100349355 C CN100349355 C CN 100349355C CN B2005100788557 A CNB2005100788557 A CN B2005100788557A CN 200510078855 A CN200510078855 A CN 200510078855A CN 100349355 C CN100349355 C CN 100349355C
- Authority
- CN
- China
- Prior art keywords
- charging
- charging current
- current
- value
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to a charger and a charging method thereof. Before on charge, the charger provided by the present invention firstly discharges a battery to be a default value in a pulse wave mode, and then starts charging the battery in the pulse wave mode; in the charging period, the charger can judge whether a charging current is overhigh or not, if the charging current is overhigh, the charger can skip to a corresponding charging stage to continuously charge the battery so as to correct the charging current, and thus, the effect of fast charging is achieved under the condition of not reducing the service life of the battery.
Description
Technical field
The invention relates to a kind of charger, refer to a kind of charger and charging method thereof of pulse wave formula charging especially.
Background technology
Fig. 1 shows the charging process schematic diagram of conventional charger, and it is the voltage curve 11 and current curve 12 that shows charging process.In general, the main branch two stages in charging process: decide current phase (Constant Current, C C) and decide the voltage stage (Constant Voltage, CV).
In order to reach quick charge, present charger is just charging current to be drawn high big electric current in the extremely of short duration time when at the beginning battery being charged, and carries out constant-current charge then.As shown in Figure 1, just use big electric current to charge at the beginning.Yet based on the characteristic of battery itself, when just beginning to charge, the Capacity Ratio that can charge is less, if just adopt large current charge at the beginning, might make that the chemical reaction material in the battery is impaired, and produce thermal cycle, even can produce blast.Therefore, hear of battery when charging, blast at present often.
In addition, the charger of some company can carry out a pre-charge stage (Pre-charge) earlier when charging at the beginning at present.Charger is the size that can judge a reference current (Iref) in this stage, if reference current greater than a predetermined current value (for example: 1.5A), then slowly rise charging current and can not enter the constant-current charge stage at once.Yet, there is certain situation can make charger judge by accident, for example: the metal contact pin of battery is got rusty, perhaps battery and charger loose contact, the reference current that these situations will cause charger to judge diminish (because of contact pin get rusty or loose contact make in resistive big).Therefore, reference current might because of said circumstances less than the predetermined current value, make charger jump to the constant-current charge stage immediately.The charger of this class still might cause the lifetime of battery or blast.Noticeable at this, this type of charger is after erroneous judgement at present, and just the footpath is advanced into the constant-current charge stage, and can not return the pre-charge stage again, so can damage battery.
Summary of the invention
The objective of the invention is is providing a kind of charger and charging method thereof, so that can not destroy battery useful life and reach quick charge.
The objective of the invention is is providing a kind of charger and charging method thereof, so that can avoid battery to blast when charging.
According to a characteristic of the present invention, provide a kind of charging method of charger, so that a battery is charged, this charging method comprises the steps: discharge step, charge step and revises step, in discharge step, be that battery is carried out the discharge of pulse wave formula wherein; In charge step, be battery to be begun charging with charging current, wherein charging current is a pulse wave electric current, and this charging current increases in time and becomes big; And in revising step, during charge step, reach the present charging current value of sample according to default time interval value, and compare present charging current value and advance the rank value with the present preset charged electric current of place charging stage, if at present charging current value advances rank value greater than the preset charged electric current, then skipping to a charging stage of presetting charges; Otherwise, then in place charging stage continuation charging at present.
According to another characteristic of the present invention, provide a kind of charger, in order to a battery is charged, this charger comprises: charging module, discharge module, pulse wave control module, memory module, comparison module and major control module.Wherein, the pulse wave control module electrically connects with charging module and discharge module respectively; Memory module electrically connects with charging module and comparison module respectively, and stores default charging current initial value of a plurality of charging stages and the time interval value that advances rank value, a plurality of charging current controlling value, a sampling; Comparison module is to electrically connect with this memory module; And the major control module electrically connects with Power Entry Module, charging module, discharge module, comparison module, memory module and pulse wave control module respectively.In addition, the major control module is control pulse wave control module and discharge module before to battery charge, battery is carried out the discharge of pulse wave formula, then major control module controls memory module output wherein a charging current controlling value to charging module, and control pulse wave control module and charging module, continue to increase its charging current according to the increase of charging current controlling value battery is charged, till finishing charging; And between charge period, the major control module can reach the present charging current value of sample according to default time interval value, and send comparison module to, comparison module can compare present charging current value and the preset charged electric current of present place charging stage advances the rank value, if at present charging current value advances the rank value greater than this preset charged electric current, then skipping to the default charging stage charges; Otherwise, then in place charging stage continuation charging at present.
Description of drawings
Fig. 1 is the charging process schematic diagram of conventional charger;
Fig. 2 is the function block schematic diagram of charger one preferred embodiment of the present invention;
Fig. 3 is the schematic diagram of the memory module of charger one preferred embodiment of the present invention;
Fig. 4 is the partial interior circuit diagram of the charging module of charger one preferred embodiment of the present invention;
Fig. 5 is the action flow chart of charging method one preferred embodiment of the present invention;
Voltage curve schematic diagram when Fig. 6 is the charging of charging method one preferred embodiment of the present invention;
Pulse wave current diagram when Fig. 7 is the charging of charging method one preferred embodiment of the present invention;
First's pulse wave current diagram when Fig. 8 is the charging of charging method one preferred embodiment of the present invention;
Second portion pulse wave current diagram when Fig. 9 is the charging of charging method one preferred embodiment of the present invention.
[primary clustering symbol description]
Power supply input processing module 21 comparison modules 22
Provide charging current unit 401,402,403,404,405,406,407,408
Charging stage 41,42,43,44,45
Charging current 81,82,83,831,832,833,834,835,84,91,92,
93
Step S 505, and S 510, and S 515, and S 520, and S 525, and S 530, and S 535
Embodiment
The present invention is before to battery charge, be to carry out the pulse wave formula earlier to be discharged to a default value, then begin battery is carried out the charging of pulse wave formula, in between charge period, charger can judge constantly whether charging current is unusual, if charging current is excessive, then skip to the corresponding charging stage proceed the charging, that is in some cases, charging current may be adjusted to minimum charge current, and in other cases, charging current may be adjusted to smaller charging current, so that can reach the effect of quick charge not destroying under the battery situation in useful life.
Fig. 2 shows the function block schematic diagram of charger preferred embodiment of the present invention.Charger 2 is to comprise power supply input processing module 21, comparison module 22, memory module 23, pulse wave control module 24, charging module 25, discharge module 26 and major control module 27, in order to battery 28 is charged, wherein memory module 23 stores the default value of plural charging current controlling value, discharge regime, the initial value and the time interval value that advances rank value, charging current higher limit and a sampling of plural number default charging current of charging stage.In present embodiment, battery 28 can be Ni-MH battery, lithium ion battery, Ni-Cr battery, lithium polymer battery or other equivalent rechargeable battery.
The input of above-mentioned power supply input processing module 21 is for exchanging (AC) power supply, convert lower direct voltage to the higher alternating voltage (for example: 110V or 220V) that will be imported, the lower direct voltage that it is changed offers charging module 25 then.Above-mentioned comparison module 22 is when charging, be be used for the preset charged electric currents of each charging stage of storing in more present charging current value and the memory module 23 advance rank value, charging current higher limit between whether unusual, to produce a comparative result, so that can control memory module 23 according to this comparative result for major control module 27, to provide corresponding charging current controlling value, so that can adjust charging current to charging module 25.
Fig. 3 shows the schematic diagram of the memory module 23 of charger 2 preferred embodiments of the present invention, in present embodiment, a part of space in the memory module 23 stores complex charging current controlling value, and for example: 00000000 stores charging current controlling value 00000001 in the address; 00001000 stores charging current controlling value 00000010 in the address; And 00002000 store charging current controlling value 00000011 in the address.These above-mentioned charging current controlling values are to control the size of the charging current of charging module 25.In present embodiment, memory module 23 is read-only memory (ROM).In other embodiments, memory module 23 can be non-voltile memory (Non-Volatile Memory), random access memory (RAM), flash memory (Flash) etc. and stores internal memory or other suitable pattern Storage Media.
Fig. 4 shows the partial interior circuit diagram of the charging module 25 of charger 2 preferred embodiments of the present invention, it is that a plurality of charging current unit 401 that provide are provided, 402,403,404,405,406,407,408, each provides in the charging current unit 401-408 a resistance, and these resistance values are different, makes each provide charging current unit 401-408 that different charging currents can be provided, for example: provide charging current unit 401 that the charging current of 1C is provided, be meant the rated current that is recharged battery in this so-called 1C charging current, for example: the electric current of the battery of mobile phone is 700mA, and the 1C charging current that then provides charging current unit 401 to provide is 700mA.Similar, the charging current that provides charging current unit 403 that 0.5C is provided, i.e. 350mA; The charging current that provides charging current unit 406 that 0.1C is provided, i.e. 70mA.
And the above-mentioned charging current unit 401,402,403 that provides, 404,405,406,407,408 can come battery 28 chargings according to the charging current controlling value that memory module 23 is provided.For example: the charging current controlling value that the address 00002000 of memory module 23 stores is 00000011, wherein each numerical value of charging current controlling value (binary " 0 " or " 1 ") correspondence provides charging current unit 401 respectively from high to low, 402,403,404,405,406,407,408, and utilize binary numerical value " 1 " (Hi) as the control signal of supply charging current (in other embodiment can also " 0 " (Lo) be the control signal of supply charging current), provide charging current unit 401 to control each respectively, 402,403,404,405,406,407,408 charging current.Therefore, only provide charging current unit 407,408 that charging current 0.05C and 0.01C are provided respectively, so the charging current of this moment is 0.06C (that is 42mA).Certainly, in other embodiments, memory module 23 might store other numerical value, and by controlling charging module 25 by this numerical value, and the internal circuit design of charging module 25 also can adopt other chip module or other equivalent circuit to reach.
Next, please continue the function block schematic diagram that shows with reference to Fig. 2.Above-mentioned major control module 27 is connected with comparison module 22, memory module 23, pulse wave control module 24, charging mould resistance 25 and discharge mould resistance 26 respectively, so as for major control module 27 can control ratio than mould resistance 22, the size of current when relatively charging.Major control module in addition 27 is control pulse wave control modules 24, so that pulse wave control module 24 control charging module 25 and discharge modules 26, carry out the charging of pulse wave formula so that can reach, and carry out the discharge of pulse wave formula through 26 pairs of batteries of discharge module 28 through 25 pairs of batteries of charging module 28.The detailed description that relevant pulse wave formula discharges and recharges is detailed later.
Fig. 5 shows the action flow chart of the charging method preferred embodiment of charger 2 of the present invention, the functional block diagram that relevant its explanation please show with reference to Fig. 2 in the lump.At first, battery 28 inserted cradle (figure do not show) after, be to begin that battery 28 is carried out the pulse wave formula to be discharged to a default value (step S505), wherein the default value of this discharge regime is to be stored in the memory module 23.Because therefore known charger can will not be sturdy inadequately when charging to battery discharge before charging, hereat might cause electric weight to reduce sharply suddenly in use, for example: the electric weight of the battery of handset displays might become lattice by three lattice suddenly.
Though some charger arrangement has discharge button at present, it is to push the back to the discharge of battery 28 continuitys at discharge button, and in fact after decontroling discharge button, the remaining capacity of battery is not discharged fully by certain quilt yet.Therefore, present embodiment discharges through the pulse wave formula and is discharged to a default value really.Default value in certain embodiments, can't use fully, so may be 2.5V for fear of battery.In further embodiments, because charger may be provided with other protective device, so default value may be 0V.Certainly, invention can be implemented in the charger of various rechargeable battery kinds, therefore for different types of rechargeable battery, the default value that charger discharged is also inequality.
In addition, the discharge of pulse wave formula is meant that a plurality of discrete discharging currents form a discharge cycle, and three discharge cycles are in regular turn for example arranged, and first discharge cycle includes four discrete discharging current (I
D11, I
D12, I
D13, I
D14), I then
D11＞I
D12＞I
D13＞I
D14Second discharge cycle includes four discrete discharging current (I
D21, I
D22, I
D23, I
D24), I then
D11＞I
D12＞I
D21, and I
D21＞I
D22＞I
D23＞I
D24The 3rd discharge cycle includes four discrete discharging current (I
D31, I
D32, I
D33, I
D34), I then
D11＞I
D21＞I
D31, and I
D31＞I
D32＞I
D33＞I
D34
Next, please continue with reference to Fig. 5, the charging module 25 of charger 2 is to begin battery 28 charge (step S510) with small pulse wave electric current.Relevant its detailed description, would like to ask in the lump with reference to Fig. 6, Fig. 7, Fig. 8 and Fig. 9, voltage curve schematic diagram when wherein Fig. 6 shows charging, pulse wave current diagram when Fig. 7 shows charging, first's pulse wave current diagram when Fig. 8 shows charging, the second portion pulse wave current diagram when Fig. 9 shows charging.
Cooperate Fig. 2 and shown in Figure 4 again, suppose that above-mentioned battery 28 is discharged into 2.5V by the pulse wave formula, then major control this moment module 27 control comparison modules 22, memory module 23, pulse wave control module 24 and charging module 25 come battery 28 is charged.
At the beginning the time, major control module 27 control memory modules 23 begin to export its charging current controlling value 00000001 to charging module 25 by address 00000000, make the charging current unit 408 that provides of charging module 25 that the charging current of 0.01C is provided.Then, major control module 27 sees through adding up (figure does not show) of a counter or increases in time and control memory module 23 and export the charging current controlling value that increases progressively in the address in regular turn, so that confession amplification charging current.
In addition, between charge period, and comparison charger of the present invention 2 reaches the present charging current instantaneous value of sample one according to the time interval value of setting, and see through comparison module 22 and compare the charging current instantaneous value and advance the rank value with the preset charged electric current of place charging stage at present, to judge whether charging process is unusual, so that can in time revise (step S515) to charging current.If learn that via the comparative result of comparison module 22 charging is unusual, then return the preset charged stage charge (step S520).Relevant its explanation please be with reference to Fig. 6 and Fig. 7.
In Fig. 6, Fig. 7, the charging process of battery 28 mainly is divided into two charging process 6a, and 6b wherein more comprises the ascending current charging stage 41,42,43,44 in charging process 6a, more comprise the constant-current charge stage 45 in charging process 6b.Following table shows that each charging stage 41～45 is with charging current controlling value and default charging current initial value of charging stage and advance the corresponding of rank value:
| Charging stage | Charging stage 41 | Charging stage 42 | Charging stage 43 | Charging stage 44 | Charging stage 45 |
| The charging current controlling |
00000000～ 00100000 | 00100001～ 01000000 | 01000001～ 10000000 | 10000001～ 11111111 | 11111111 |
| The charging current initial value is to the interval of advancing the rank value | 0C＜＝I＜＝0.5C | 0.51C＜＝I＜＝ 0.75C | 0.76C＜＝I＜＝ 1C | 1.01C＜＝I＜ 3.01C | 3.01C＝I |
In the charging stage 41, the charging current controlling value that memory module 23 is provided is between 00000000～00100000, and the initial value of charging current I (=0C) (=0.5C) interval is between 0C～0.5C to advancing the rank value, because the charging stage 41 of this enforcement is first charging stage, therefore major control module 27 control memory modules 23 start anew to export the charging current controlling value by address 00000000, and constantly increase its charging current; Again via more present charging current value of comparison module 22 and default charging current of this charging stages 41 advance rank value after, be less than or equal to into rank value 0.5C as if charging current, then proceed charging process in this stage.If charging current increases to greater than 0.5C and when being less than or equal to 0.75C, then skip to the next charging stage 42.
In the charging stage 42,, then proceed charging process if charging current is less than or equal to into rank value 0.75C at present.If charging current, then skips to the next charging stage 43 greater than 0.75C and less than 1C.In addition, the electric current of output is less than the default charging current initial value of this charging stage 42 and the interval of advancing the rank value (during 0.51C～0.75C) if charging current is unstable suddenly, major control module 27 can skip to the corresponding charging stage 41 by control charging module 25, and control memory module 23 starts anew to export the charging current controlling value by address 0000000, and (＜=0.5C) mode is charged to increase progressively charging current by 0C (charging stage 41 default initiation of charge electric current) beginning to make charging current.Similar, in between charge period, this comparison module can compare present charging current value and charging current higher limit according to a default time interval, therefore, the electric current of output greater than this charging current higher limit (for example: in the time of 4C) if charging current is unstable, then major control module 27 can control memory modules 23 from then on the default initiation of charge Current Control value 00100001 of a charging stage 42 begin output, make charging current get back to 0.51C (the default charging current initial value of charging stage 42) and begin that (＜=0.75C) mode is charged to increase progressively charging current.
As shown in the above description, in the different charging stage 41,42, the corresponding different charging current interval of 43,44,45 difference, if charging current is because of unstable when too small or excessive, then skip to the corresponding charging stage, to carry out charging process, for example: charge with bigger charging current or by less charging electricity according to default charging current interval.
Certainly, if via the comparative result of comparison module 22 in normal charging current interval, then proceed charging, and see through comparison module 22 and come the charging voltage of comparison battery 28 (for example: 4.2V) (step S525) whether to equal to fill full rated voltage nearly.If the charging voltage of battery 28 does not equal to fill full rated voltage, then proceed charging (step S530).Otherwise,, then enter the constant-current charge stage 45 if the charging voltage of battery 28 is filled full rated voltage no better than this moment.
Because the characteristic of battery 28 itself, after charging voltage was charged to rated voltage (4.2V), through after a while, charging voltage can reduce little by little (for example: drop to 4.12V) a little, so can continue a period of time of charging usually.Present way is to adopt rated voltage (4.2V) to continue battery 28 chargings because pressure reduction (4.2V-4.12V=0.08V) is little, so the time battery 28 voltage be difficult to fill to such an extent that get on.Therefore, the present invention in the charging stage 45 through a Preset Time (for example: 3 minutes) after, be to adopt higher a little voltage to battery 28 chargings (step S535).For example: adopt the voltage of 5V, make pressure reduction enough big, and the voltage of battery 28 can be filled with.
In addition, charging current schematic diagram by Fig. 7, Fig. 8 and Fig. 9 can be learnt, charging current is to be pulse wave formula charging current, wherein Fig. 8 shows the pulse wave formula charging current schematic diagram of charging process 6a, and it is the increase that shows along with the charging interval, and charging current is seen it by overall trend, also increase thereupon, for example: charging current 84 is greater than charging current 83, and charging current 83 is greater than charging current 82, and charging current 82 is greater than charging current 81.In addition, charging current in Fig. 8 is to be the pulse wave formula, that is a plurality of discrete charging current 83,831,832,833,834 form a charge cycle, so include plural charge cycle in charging process 6a, wherein the number of the included charging current of each charge cycle is to fix, also can change dynamically, for example: the included charging current number of present charge cycle is 6, and the included charging current number of next charge cycle is 4.
Fig. 9 shows the pulse wave formula charging current schematic diagram of charging process 6b, and it is the increase that shows along with the charging interval, and maximum charging current is equal.For example: charging current 91 equals charging current 92, and charging current 92 equals charging current 93.And the charging current in Fig. 9 also is the pulse wave formula.Similar, charging process 6b also includes a plurality of charge cycles, and each charge cycle includes plural charging current.
By above explanation as can be known, the present invention is before charging, sees through the discharge of pulse wave formula earlier, so that the remaining capacity of battery is removed as far as possible, sees through little pulse wave formula charging current then and charges.And it is between charge period, judge whether charging current is excessive, if excessive, then return the default charging stage,, avoid injuring battery so that more suitable charging current to be provided, with the useful life of prolongation battery, even can avoid causing battery to be blasted because of charging current is excessive.
The foregoing description only is to give an example for convenience of description, and the interest field that the present invention advocated should be as the criterion so that claim is described certainly, but not only limits to the foregoing description.
Claims (10)
1. the charging method of a charger so that a battery is charged, is characterized in that, comprises the steps:
This battery is carried out the pulse wave formula to be discharged to its electric weight and to reach a default value;
Battery is charged via a plurality of ascending current charging stage, this each ascending current charging stage is respectively as an initial charging current with a charging current initial value of presetting, and charge with a default charging current controlling value, and this charging current controlling value system mode to increase progressively gradually, using increases strength of charging current this battery is charged, and rising gradually up to this strength of charging current reaches a default charging current of this ascending current charging stage and advance the rank value;
In the time interval value of presetting of this ascending current charging stage, compare a real-time charging current value and this ascending current of place at present in the charging stage default this charging current advance the rank value, if when advancing the rank value greater than this charging current, then entering corresponding another this ascending current charging stage again, this real time charging current value charges;
The charging voltage of detecting this battery whether near or equal a default rated voltage, if there is not the charging then proceeded, otherwise, then enter a constant-current charge stage, and advance the charging current value that rank value is this constant-current charge stage with detecting this default charging current of ascending current charging stage of carrying out at that time, and with this fixing charging current value this battery is charged, till finishing charging.
2. charging method as claimed in claim 1 is characterized in that, described this charging current is a pulse wave electric current.
3. charging method as claimed in claim 1 is characterized in that, described this initial charging current is a small charging current.
4. charging method as claimed in claim 1 is characterized in that, described this charging current controlling value is one to be the count value that increases progressively variation.
5. as claim 1 or 4 described charging methods, it is characterized in that described this charging current controlling value is binary numerical value.
6. charging method as claimed in claim 1, it is characterized in that, when real-time charging current value during greater than a default charging current higher limit, even this real-time charging current value is reduced to the charging current initial value of this ascending current charging stage of place, continue to finish the charging of this ascending current charging stage again in the mode that increases progressively charging current.
7. charging method as claimed in claim 1 is characterized in that, described this charging current is to form a charge cycle with a plurality of discrete charging currents, and is formed with this charge cycle of plural number in this charging process.
8. a charger in order to a battery is charged, is characterized in that, this charger comprises:
One discharge module;
One charging module;
One pulse wave control module electrically connects with this discharge module and this charging module respectively;
One memory module electrically connects with this charging module, and stores default charging current initial value of a plurality of charging stages and the time interval value that advances rank value, a plurality of charging current controlling value, a sampling;
One comparison module electrically connects with this memory module; And
One major control module electrically connects with this memory module, this pulse wave control module and this comparison module respectively;
Wherein this major control module is this pulse wave control module of control and this discharge module before to this battery charge, this battery is carried out the discharge of pulse wave formula, then the output of this memory module of this major control module controls wherein a charging current controlling value to this charging module, and control this pulse wave control module and this charging module, continue to increase its charging current according to the increase of this charging current controlling value this battery is charged, till finishing charging; In between charge period, this major control module can reach this present charging current value of sample according to default time interval value, and send this comparison module to, this comparison module can compare this present charging current value and the preset charged electric current of present place charging stage advances the rank value, if this present charging current value advances the rank value greater than this preset charged electric current, then skipping to next charging stage charges; Otherwise, then continue charging in this present place charging stage.
9. charger as claimed in claim 8 is characterized in that, described this memory module more stores a default charging current higher limit.
10. charger as claimed in claim 9, it is characterized in that, in between charge period, this comparison module is this present charging current value of comparison and this default charging current higher limit further, if this present charging current value is during greater than this charging current higher limit, even this present charging current value is reduced to the charging current initial value of place charging stage, continue to finish the charging in this stage again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100788557A CN100349355C (en) | 2005-06-23 | 2005-06-23 | Charging device and charging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100788557A CN100349355C (en) | 2005-06-23 | 2005-06-23 | Charging device and charging method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1710778A CN1710778A (en) | 2005-12-21 |
| CN100349355C true CN100349355C (en) | 2007-11-14 |
Family
ID=35706973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100788557A Expired - Fee Related CN100349355C (en) | 2005-06-23 | 2005-06-23 | Charging device and charging method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100349355C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111257774B (en) * | 2020-01-21 | 2022-10-21 | 福建时代星云科技有限公司 | Method and system for detecting direct current impedance of electric automobile |
| CN113131573B (en) * | 2021-04-15 | 2022-07-29 | 深圳卓锐思创科技有限公司 | Multi-output-port fast charging switching circuit and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09161853A (en) * | 1995-12-08 | 1997-06-20 | Nissan Motor Co Ltd | Temperature controller of secondary battery |
| JP2003087990A (en) * | 2001-09-14 | 2003-03-20 | Ricoh Co Ltd | Charging circuit for secondary battery |
| CN1533009A (en) * | 2003-03-25 | 2004-09-29 | 三美电机株式会社 | Pulse charging control method |
-
2005
- 2005-06-23 CN CNB2005100788557A patent/CN100349355C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09161853A (en) * | 1995-12-08 | 1997-06-20 | Nissan Motor Co Ltd | Temperature controller of secondary battery |
| JP2003087990A (en) * | 2001-09-14 | 2003-03-20 | Ricoh Co Ltd | Charging circuit for secondary battery |
| CN1533009A (en) * | 2003-03-25 | 2004-09-29 | 三美电机株式会社 | Pulse charging control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1710778A (en) | 2005-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100459366C (en) | Charging device for secondary cell and its charging method | |
| CN102035010B (en) | Battery unit equalizing circuit and method | |
| US5498951A (en) | Method and apparatus for charging electric double layer capacitor | |
| US20130132742A1 (en) | Charging control method for a rechargeable battery and portable computer | |
| CN106712159B (en) | Lithium battery rapid charging and discharging device and method | |
| US20120293114A1 (en) | Charge control circuit, battery-operated device, charging apparatus and charging method | |
| CN104662770A (en) | Charging control device and charging time calculation method | |
| WO2017173182A1 (en) | Fast charging apparatus and method | |
| CN102804544A (en) | Charge control device and method for secondary battery module | |
| CN102820679B (en) | A kind of charge control method and electronic equipment | |
| CN106848457A (en) | A kind of charging method and electronic equipment | |
| CN103765724A (en) | Rechargeable electrical device | |
| CN100385728C (en) | Chargeable battery charging process controlling method | |
| CN112087025A (en) | Charging method and charger | |
| JP2008148486A (en) | Charging method and circuit | |
| CN103219754B (en) | single-loop charging device and single-loop charging method | |
| CN114374237A (en) | Charging device, charging method and mobile power supply | |
| JP2010119186A (en) | Charging system for rechargeable lithium cells | |
| CN100349355C (en) | Charging device and charging method | |
| CN101976744A (en) | Charging and discharging method for secondary battery | |
| CN101420054A (en) | Battery charging method and device thereof | |
| CN104466280A (en) | Rapid lithium battery charging method for DC brushless motor driving system | |
| CN114256943B (en) | Quick charging charger and quick charging chip | |
| CN103312001A (en) | Battery-charging method and system with super capacitor for energy storage system | |
| CN110828913A (en) | Battery charging method and charging system thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071114 Termination date: 20190623 |