CN106329597A - Vehicle battery charger and method for operating battery charger - Google Patents
Vehicle battery charger and method for operating battery charger Download PDFInfo
- Publication number
- CN106329597A CN106329597A CN201510379349.5A CN201510379349A CN106329597A CN 106329597 A CN106329597 A CN 106329597A CN 201510379349 A CN201510379349 A CN 201510379349A CN 106329597 A CN106329597 A CN 106329597A
- Authority
- CN
- China
- Prior art keywords
- circuit module
- battery charger
- module
- cells
- effect transistor
- 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
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a vehicle battery charger and a method for operating the battery charger. The vehicle battery charger comprises a charging circuit module and a discharging function module. The charging circuit module is used for charging a battery pack formed by serially connecting multiple single batteries. The discharging function module is used for discharging the battery pack. According to the invention, a control circuit module gives out a control signal according to a feedback signal in a feedback circuit module and a reference voltage value provided by a reference circuit so as to allow the discharging circuit module to normally and stably work; the discharging circuit module is controlled by the control circuit module to discharge the battery pack with the constant current; a power battery is allowed to be free from over-discharging failure and phenomena of passivation of a polar plate and attenuation of capacity are avoided; and safety of the battery is greatly improved and effective life of the battery is greatly prolonged.
Description
Technical field
The present invention relates to the discharging function circuit of charger, particularly relate to the charger of the electrokinetic cell of a kind of belt discharge function.
Background technology
When using power recharge battery, it is generally required to composition set of cells that some batteries are together in series so that it is the sufficiently large voltage required for output.The most there is the multiple charger that power recharge battery is charged, but these chargers all do not have discharging function, and cannot ensure that set of cells is discharged with constant current in discharge process, so it is easy to make set of cells that the phenomenon put and cause its pole plate passivation, capacity attenuation to occur, it is difficult to ensure that the safety of set of cells and useful life, the charger of current driving force battery there is also the biggest defect in this link of discharging function.
Summary of the invention
For above-mentioned the problems of the prior art, it is an object of the invention to provide how a kind of preferably solution ensures that set of cells can be discharged with a specific constant current value when electrokinetic cell discharges, make electrokinetic cell not have the scheme putting inefficacy.
For solving above-mentioned technical problem, the invention provides the charger of the electrokinetic cell of a kind of belt discharge function, including charging circuit module, for the set of cells being in series by more piece cell is charged；Discharging function module, it is for discharging to set of cells, and described discharging function module includes:
Reference circuit module, for providing certain specific magnitude of voltage to control circuit module, this magnitude of voltage can be completed by regulation circuit parameter；
Feedback circuit module, by being sampled the electric current in discharge circuit module, to provide a feedback signal to control circuit module；
Control circuit module, sends control signal according to the reference voltage value that the feedback signal in feedback circuit module and reference circuit provide, and makes discharge circuit module keep the work of normal table；
Discharge circuit module, is controlled by control circuit module, it is achieved discharge set of cells with constant electric current.
As patent preferred embodiment of the present invention, described control circuit module is made up of comparator and field effect transistor, and the source electrode of field effect transistor is connected with a pole of set of cells by sample resistance, and the drain electrode of field effect transistor is connected with switch module (1) foot by high-power resistance；The grid of field effect transistor is connected with comparator output terminal by a resistance, the end of oppisite phase of this comparator receives a feedback voltage level of feedback circuit module input, the reference voltage value awarded according to feedback voltage level and base modules exports a control signal after jointly acting on and controls field effect transistor break-make, thus control discharge circuit module, reach current constant control effect.
As another preferred embodiment of patent of the present invention, one end of described set of cells is connected with switch module one end, the switch module other end and a high-power resistance are connected, high-power resistance connects with the drain electrode of field effect transistor again, its source electrode and sample resistance connect, and the other end of sample resistance is connected with the other end of set of cells.When receiving the control signal of control circuit module output, discharge circuit module starts to be discharged set of cells by high-power resistance, and its discharge current is controlled by control circuit module, it is to avoid set of cells puts inefficacy because crossing.
Owing to the present invention utilizes capacitance power battery charger to have discharging function so that battery did not had puts inefficacy, thus greatly strengthens safety and the useful life of battery.
Accompanying drawing explanation
Accompanying drawing 1 is the structure chart of the capacitance power battery charger of the present invention a kind of belt discharge function；
Accompanying drawing 2 is the capacitance power battery charger circuit diagram of the present invention a kind of belt discharge function.
Detailed description of the invention
With reference to Fig. 1, the present invention is a kind of capacitance power battery charger with discharging function, and it is for realizing discharging function to the set of cells being in series by more piece cell, comprising:
Charging circuit module 1, for being charged the set of cells being in series by more piece cell；
Discharging function module 2, discharging function module 2 also includes: reference circuit module 2-1, thering is provided certain specific operational voltage value for giving control circuit module 2-3, this magnitude of voltage can be completed by regulation circuit parameter, the offer precondition so that control circuit normally works；
Feedback circuit module 2-2, is sampled gathering to the electric current in discharge circuit module 2-4 by sample resistance, sends one voltage signal of end of oppisite phase of comparator in control circuit module 2-33 to；
Control circuit module 2-33, is made up of comparator and field effect transistor, and the source electrode of field effect transistor is connected with a pole of set of cells by sample resistance, and the drain electrode of field effect transistor is connected with a foot of switch by high-power resistance；The grid of field effect transistor is connected with comparator output terminal by a resistance, the end of oppisite phase of this comparator receives a feedback voltage level of feedback circuit module 2-2 input, the reference voltage value awarded according to feedback voltage level and base modules exports a control signal after jointly acting on and controls field effect transistor break-make, thus control discharge circuit module 2-4, reach current constant control effect.
Discharge circuit module 2-4, one end of set of cells is connected with switch one end, and the switch other end and a high-power resistance are connected, and high-power resistance connects with the drain electrode of field effect transistor again, its source electrode and sample resistance connect, and the other end of sample resistance is connected with the other end of set of cells.When receiving the control signal of control circuit module 2-3 output, discharge circuit module 2-4 starts to be discharged set of cells by high-power resistance, and discharge current is controlled by control circuit module 2-3, it is to avoid set of cells puts inefficacy because crossing.
The method have the characteristics that the discharging function of charger, it is possible to achieve discharge with certain specific constant current.Utilize comparator to control the low on-resistance characteristic of field effect transistor as constant current switch device, realized set of cells constant-current discharge by high-power resistance.
With reference to Fig. 2, describe a kind of vehicle battery charger of the present invention in detail and operate the method work process of this battery charger.(1), (2) bipod of connector J1 connects charging circuit module 1.(1) foot V+ of connector J2 connects the positive pole of set of cells, and (2) foot connects the negative pole of set of cells.When switch S1 in switch pulls out (2) foot to S1, connector J1 with J2 connects, and charging circuit module 1 charges to set of cells 1；When switch S1 in switch pulls out (1) foot to S1, connector J2 connects with discharging function module 2, and set of cells 1 is discharged by high-power resistance R7 in discharging function module 2.In this discharge process, DC voltage VCC passes through electric capacity C5 ground connection, and is connected to control the power supply input pin of comparator U1A in functional module 2-3.VCC series resistance R1 again is followed by (1), (3) bipod to manostat U2.(2) foot ground connection of manostat U2.Electric capacity C1, C2 are all connected in parallel on (1), (2) foot of manostat U2.(1) foot one reference voltage of output of manostat U2, this voltage is connected to control the in-phase end of comparator U1A in functional module 2-3 through series resistance R3 after resistance R2 and variable resistance VR1 dividing potential drop, it is provided that a reference voltage.Feedback circuit module 2-2 detects discharge current size by resistance R5, is concatenated resistance R4 and is connected to the end of oppisite phase of comparator U1A in control circuit module 2-3.The grid of output termination field effect transistor Q1 of comparator U1A in control circuit module 2-3, when discharge current is bigger, the voltage feeding back to comparator U1A end of oppisite phase by detecting resistance R5 is higher than the reference voltage value of its in-phase end, comparator U1A is with regard to output low level, make field effect transistor drain electrode and source electrode be not turned on, block the electric current of discharge circuit；When discharge current is less, the voltage feeding back to comparator U1A end of oppisite phase by detecting resistance R5 is lower than the reference voltage value of its in-phase end, comparator U1A exports high level, drive the grid of field effect transistor Q1, make field effect transistor drain electrode and source conduction, so, discharge current is excessive, and field effect transistor Q1 turns off；Discharge current is too small, and field effect transistor Q1 turns on, stabilize set of cells-discharge current size, serve current constant control effect, it is to avoid the mistake of set of cells puts inefficacy.The resistance of variable resistance VR1 in regulation reference circuit module 2-2, just can change the reference voltage value of comparator U1A in-phase end in control circuit module 2-3, and then changing the constant current value of discharge current, it is achieved set of cells all can carry out the function of constant-current discharge under different current conditions.
The purpose of a kind of vehicle battery charger of the present invention and the method that operates this battery charger is to provide for a kind of preferably solving how electrokinetic cell ensures that set of cells can be discharged with a specific constant current value electric discharge when, and set of cells did not had the scheme putting inefficacy, thus greatly strengthen safety and the useful life of battery.
Invention described above embodiment, is not intended that limiting the scope of the present invention.Any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, within should be included in the claims of the present invention.
Claims (3)
1. a vehicle battery charger and the method that operates this battery charger, it is characterised in that: include charging circuit module and discharging function module, and this discharging function module includes:
Reference circuit module, for providing certain specific magnitude of voltage to control circuit module, this magnitude of voltage can be completed by regulation circuit parameter；
Feedback circuit module, by being sampled the electric current in discharge circuit module, to provide a feedback signal to control circuit module；
Control circuit module, sends control signal according to the reference voltage value that the feedback signal in feedback circuit module and reference circuit provide, and makes discharge circuit module keep the work of normal table.
2. vehicle battery charger as claimed in claim 1 and the method that operates this battery charger, it is characterized in that: described control circuit module is made up of comparator and field effect transistor, the source electrode of field effect transistor is connected with a pole of set of cells by sample resistance, and the drain electrode of field effect transistor is connected with switch module 1 foot by high-power resistance；The grid of field effect transistor is connected with comparator output terminal by a resistance, the end of oppisite phase of this comparator receives a feedback voltage level of feedback circuit module input, the reference voltage value awarded according to feedback voltage level and base modules exports a control signal after jointly acting on and controls field effect transistor break-make, thus control discharge circuit module, reach current constant control effect.
3. vehicle battery charger as claimed in claim 1 and the method that operates this battery charger, it is characterized in that: one end of described set of cells is connected with switch module one end, the switch module other end and a high-power resistance are connected, high-power resistance connects with the drain electrode of field effect transistor again, its source electrode and sample resistance connect, and the other end of sample resistance is connected with the other end of set of cells；When receiving the control signal of control circuit module output, discharge circuit module starts to be discharged set of cells by high-power resistance, and its discharge current is controlled by control circuit module, it is to avoid set of cells puts inefficacy because crossing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510379349.5A CN106329597A (en) | 2015-06-27 | 2015-06-27 | Vehicle battery charger and method for operating battery charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510379349.5A CN106329597A (en) | 2015-06-27 | 2015-06-27 | Vehicle battery charger and method for operating battery charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106329597A true CN106329597A (en) | 2017-01-11 |
Family
ID=57726856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510379349.5A Pending CN106329597A (en) | 2015-06-27 | 2015-06-27 | Vehicle battery charger and method for operating battery charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106329597A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655310A (en) * | 2015-11-01 | 2017-05-10 | 肖斌 | Power battery tracking feedback charging control system |
-
2015
- 2015-06-27 CN CN201510379349.5A patent/CN106329597A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655310A (en) * | 2015-11-01 | 2017-05-10 | 肖斌 | Power battery tracking feedback charging control system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104901354A (en) | Battery system and power device provided with battery system | |
| CN201478865U (en) | Improved charging balanced circuit | |
| CN102005794B (en) | Battery pack charging management system and method | |
| CN102332735B (en) | Program controlled charging circuit for nickel-hydrogen battery | |
| WO2016090852A1 (en) | Terminal device battery and method for control of charge and discharge thereof | |
| CN202142882U (en) | Power battery charger having discharging function | |
| CN106208170A (en) | Electrokinetic cell follows the tracks of feedback charge control system | |
| CN106329587A (en) | Circuit used for non-contact induction energy transmission system | |
| CN103683419A (en) | Lithium battery charger capable of identifying high or low voltages automatically | |
| CN106329597A (en) | Vehicle battery charger and method for operating battery charger | |
| CN106329607A (en) | Charger with function of automatically switching off charging/discharging | |
| CN106329606A (en) | Charger with constant current charging and discharging control circuit | |
| CN106160052A (en) | Constant-current charing system | |
| CN105591417A (en) | Charger with protection device preventing over-charge and over-discharge | |
| CN202374008U (en) | Mobile phone charging circuit | |
| CN105811555A (en) | Electronic circuit charging control system with constant current discharging function | |
| CN104716674A (en) | Charging and discharging compensation system for series storage battery pack | |
| CN2922233Y (en) | Over-charging protecting circuit for power lithium ion cell | |
| CN203933071U (en) | Battery charger charge/discharge control circuit | |
| CN105743188A (en) | Plumbic acid battery pack protection system | |
| CN202798079U (en) | Charging/discharging protection circuit of lithium battery | |
| CN202218007U (en) | Power lithium ion battery protective circuit | |
| CN202309157U (en) | Power supply cell with one port for both charging and discharging | |
| CN108206553A (en) | Heat radiating type charger | |
| CN201726162U (en) | Lithium ion power battery guard plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170111 |
|
| WD01 | Invention patent application deemed withdrawn after publication |