CN104377794A - Battery charging circuit and battery charger - Google Patents
Battery charging circuit and battery charger Download PDFInfo
- Publication number
- CN104377794A CN104377794A CN201310360424.4A CN201310360424A CN104377794A CN 104377794 A CN104377794 A CN 104377794A CN 201310360424 A CN201310360424 A CN 201310360424A CN 104377794 A CN104377794 A CN 104377794A
- Authority
- CN
- China
- Prior art keywords
- resistance
- voltage
- control module
- output
- current
- 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
- 230000009466 transformation Effects 0.000 claims abstract description 7
- 230000000087 stabilizing effect Effects 0.000 claims description 23
- 239000003381 stabilizer Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052744 lithium Inorganic materials 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000033228 biological regulation Effects 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 2
- 229910018095 Ni-MH Inorganic materials 0.000 description 1
- 229910018477 Ni—MH Inorganic materials 0.000 description 1
- QSNQXZYQEIKDPU-UHFFFAOYSA-N [Li].[Fe] Chemical compound [Li].[Fe] QSNQXZYQEIKDPU-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- 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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
- H02J7/06—Regulation of charging current or voltage using discharge tubes or semiconductor devices
-
- H02J2007/10—
Abstract
The invention belongs to the field of battery charging and particularly relates to a battery charging circuit and a battery charger. The battery charging circuit comprises a current rectification and voltage transformation module, a current control module, a voltage control module and a current guide module. The current control module outputs a first direct current according to the voltage of a direct current output by the current rectification and voltage transformation module and a preset current coefficient. The voltage control module outputs a second direct current according to the voltage of the direct current output by the current rectification and voltage transformation module and a preset voltage coefficient. The first direct current has a large current regulation range. The second direct current has a large voltage regulation range. The first direct current and the second direct current charge a storage battery simultaneously. The whole battery charging circuit has the advantage that the output current and the output voltage are stable.
Description
Technical field
The invention belongs to battery charging field, particularly a kind of battery charger and battery charger.
Background technology
" charging " is the process that the equipment such as accumulators supplement electricity, and its principle allows direct current pass through from the contrary direction of electric discharge, and to make active material restitution in storage battery, storage battery accepts electric energy from external circuit, is converted into the course of work of the chemical energy of battery.Storage battery at its energy, is recovered by charging, can again discharge again after electric discharge consumes, and forms charge and discharge circulation.And charger is exactly a kind of equipment external power source output current being converted to the electric current being suitable for charge in batteries use.Charger is of many uses in every field, is particularly widely used in the common electrical equipment of mobile phone, camera etc. at sphere of life.
But electric main is just converted to direct current by existing charger mostly simply, then carries out voltage transformation process, the DC capacitor exported like this is subject to the impact of external power source, and its voltage and electric current are all unstable.
Therefore, there is the problem of output current and output voltage instability in existing charger.
Summary of the invention
The object of the present invention is to provide a kind of battery charger, be intended to solve the problem that existing charger exists electric current and spread of voltage.
The present invention is achieved in that a kind of battery charger, is connected with storage battery, and comprise the rectifier transformer module for carrying out rectification and transformation process to electric main, described battery charger also comprises:
Current control module, input connects the output of described rectifier transformer module, exports the first direct current for the galvanic voltage swing that exports according to described rectifier transformer module and predetermined current coefficient;
Voltage control module, input connects the output of described rectifier transformer module, export the second direct current for the galvanic voltage swing that exports according to described rectifier transformer module and predeterminated voltage coefficient, and the magnitude of voltage controlling the output of described current control module is equal with described second galvanic magnitude of voltage;
Current steering block, input connects the output of described current control module and the output of described voltage control module simultaneously, and output connects the input of described storage battery, for guiding described first direct current and described second direct current to described storage battery.
Another object of the present invention is to provide a kind of battery charger comprising above-mentioned battery charger.
The present invention comprises the battery charger of rectifier transformer module, current control module, voltage control module and Current steering block by adopting, the galvanic voltage swing exported according to described rectifier transformer module by described current control module and predetermined current coefficient export the first direct current, and the galvanic voltage swing that described voltage control module exports according to described rectifier transformer module and predeterminated voltage coefficient export the second direct current.Described first direct current has larger Current adjustment scope, described second direct current has larger voltage regulation limits, described first direct current and the second direct current charge to described storage battery simultaneously, and whole battery charger has the advantage of output current and output voltage stabilization.
Accompanying drawing explanation
Fig. 1 is the function structure chart of the battery charger that one embodiment of the invention provides;
Fig. 2 is the exemplary circuit structure chart of the battery charger that one embodiment of the invention provides;
Fig. 3 is the exemplary circuit structure chart of the battery charger that another embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The embodiment of the present invention comprises the battery charger of rectifier transformer module, current control module and voltage control module by adopting, adopt current adjustment and the adjustable two-way direct current of voltage to charge to storage battery simultaneously, there is the advantage of output current and output voltage stabilization.
Fig. 1 shows the modular structure of the battery charger that one embodiment of the invention provides, and for convenience of explanation, illustrate only the part relevant to the embodiment of the present invention, details are as follows:
The battery charger that the embodiment of the present invention provides is connected with storage battery 400, and comprise the rectifier transformer module 100 for doing rectification and transformation process to electric main, battery charger also comprises:
Current control module 200, input connects the output of rectifier transformer module 100, exports the first direct current for the galvanic voltage swing that exports according to rectifier transformer module 100 and predetermined current coefficient.
Voltage control module 300, input connects the output of rectifier transformer module 100, export the second direct current for the galvanic voltage swing that exports according to rectifier transformer module 100 and predeterminated voltage coefficient, and the magnitude of voltage controlling the output of current control module 200 is equal with the second galvanic magnitude of voltage.
Current steering block 500, input connects the output of current control module 200 and the output of voltage control module 300 simultaneously, and output connects the input of storage battery 400, for guiding the first direct current and the second direct current to storage battery 400.
In embodiments of the present invention, predetermined current coefficient is determined by the resistance of current control module 200 inside, and predeterminated voltage coefficient then determines with the resistance of voltage control module 300 inside.
In embodiments of the present invention, can be the direct current of 12V by rectifier transformer module 100 output voltage, and storage battery 400 charge for output voltage is 7.2V.
In embodiments of the present invention, battery charger can also comprise charge prompting module 600, input connects the instruction power end of current control module 200, and output connects the input of storage battery 400, for pointing out the charging complete progress of storage battery 400.
Fig. 2 shows the exemplary circuit structure of the battery charger that one embodiment of the invention provides, and for convenience of explanation, illustrate only the part relevant to the embodiment of the present invention, details are as follows:
As one embodiment of the invention, current control module 200 can comprise voltage stabilizing chip U1 and resistance R2;
The input VIN of voltage stabilizing chip U1 is the input of current control module 200, the output VOUT of voltage stabilizing chip U1 and the first end of resistance R2 connect the instruction power end forming current control module 200 altogether, the earth terminal ground connection of voltage stabilizing chip U1, second end of resistance R2 is the output of current control module 200.
In embodiments of the present invention, current control module 200 is by the voltage of voltage stabilizing chip U1 output voltage stabilization, coordinate voltage control module 300, make resistance R2 both end voltage very stable, the first direct current also making current control module 200 export has good current stability.Meanwhile, by choosing the less resistance of resistance as resistance R2, the Current adjustment scope that the first direct current is larger is made.
In embodiments of the present invention, the voltage stabilizing chip of voltage stabilizing chip U1 can be model be LM317.
In another embodiment of the invention, as shown in Figure 3, current control module 200 can comprise:
Voltage stabilizing chip U1, resistance R2, resistance R6 and adjustable resistance R7;
The input VIN of voltage stabilizing chip U1 is the input of current control module 200, second end of the output VOUT of voltage stabilizing chip U1, the first end of resistance R2 and resistance R6 connects the instruction power end forming current control module 200 altogether, the earth terminal of voltage stabilizing chip U1 and the first end of resistance R6 are connected to the first end of adjustable resistance R7 altogether, the second end ground connection of adjustable resistance R7, second end of resistance R2 is the output of current control module 200.
In embodiments of the present invention, user by regulating the resistance of adjustable resistance R7, can also change the input voltage of voltage stabilizing chip U1 earth terminal, and then regulating the output voltage of voltage stabilizing chip U1, expanding Current adjustment scope further.
As one embodiment of the invention, voltage control module 300 comprises:
Resistance R3, resistance R4, adjustable resistance R5, the first diode D1, electric capacity C1 and voltage-stabiliser tube Q1;
The first end of resistance R3 is the input of voltage control module 300, second end of resistance R3 and the anode of the first diode D1 are connected to the negative electrode of voltage-stabiliser tube Q1 altogether, the negative electrode of the first diode D1 and the first end of adjustable resistance R5 connect the output of coating-forming voltage control module 300 altogether, the first end of second end of adjustable resistance R5, the first end of resistance R4 and electric capacity C1 is connected to the reference edge of voltage-stabiliser tube Q1 altogether, and the anode of second end of resistance R4, second end of electric capacity C1 and voltage-stabiliser tube Q1 is connected to ground altogether.
In embodiments of the present invention, voltage control module 300, by regulating the resistance of adjustable resistance R5, changes the reference edge voltage of voltage-stabiliser tube Q1, and then regulates the cathode voltage of voltage-stabiliser tube Q1.Because voltage-stabiliser tube Q1 is connected with the output of current control module 200 by the first diode D1, and then can the voltage of output of stabling current control module 200.
In embodiments of the present invention, the voltage stabilizing didoe of voltage-stabiliser tube Q1 can be model be TL431.
In embodiments of the present invention, by increasing the resistance of resistance R3, the ratio of the second direct current in charging current can be reduced, export charging current primarily of current control module 200, making charging current more stable; Also can reduce the resistance of resistance R3, increase the ratio of the second direct current in charging current, increase charging current further, accelerated charging progress.
As one embodiment of the invention, charge prompting module 600 comprises resistance R1 and LED 1;
The first end of resistance R1 is the input of charge prompting module 600, and the anode of the second end connecting luminous diode LED1 of resistance R1, the negative electrode of LED 1 is the output of charge prompting module 600.
In embodiments of the present invention, storage battery 400 can be lithium battery BT1.
In another embodiment of the invention, storage battery 400 can also be nickel-cadmium cell, Ni-MH battery, lead accumulator or lithium iron battery.
As one embodiment of the invention, Current steering block 500 can be the second diode D2, and the anode of the second diode D2 is the input of Current steering block 500, and the negative electrode of the second diode D2 is the output of Current steering block 500.
In another embodiment of the invention, Current steering block 500 can also comprise resistance R8 and the 3rd diode D3;
The first end of resistance R8 is the input of Current steering block 500, and second end of resistance R8 connects the anode of the 3rd diode D3, and the negative electrode of the 3rd diode D3 is the output of Current steering block 500.
Below in conjunction with Fig. 1 to Fig. 2, the operation principle of the battery charger that the embodiment of the present invention provides is further described:
When circuit does not also power on, first do not connect storage battery 400, the resistance connecting a suitable resistance as dummy load, as 100 ohm.
After circuit powers on, electric main is converted to direct current by rectifier transformer module 100.Voltage-stabiliser tube Q1 according to the resistance of adjustable resistance R5 preset by the voltage clamping of output in relevant voltage value.Resistance R2 is because both end voltage is respectively by voltage control module 300 and voltage stabilizing chip U1 clamper, and its electric current exported has very high stability.The now resistance of regulating resistance R5, regulates the voltage in above-mentioned dummy load further.Because charge prompting module 600 forms loop, LED 1 is lit.
After being adjusted to suitable voltage, dummy load is removed, storage battery 400 in connection, start as storage battery 400 charges.In storage battery 400 charging process, the cathode voltage of storage battery 400 increases gradually, until charging complete.In the process, the electric current on Light-Emitting Diode LED1 reduces gradually, until LED 1 extinguishes.
Another object of the embodiment of the present invention is to provide a kind of battery charger, comprises housing, also comprises above-mentioned battery charger.
The embodiment of the present invention comprises the battery charger of rectifier transformer module 100, current control module 200, voltage control module 300 and Current steering block 500 by adopting, the galvanic voltage swing exported according to rectifier transformer module 100 by current control module 200 and predetermined current coefficient export the first direct current, and the galvanic voltage swing that voltage control module 300 exports according to rectifier transformer module 100 and predeterminated voltage coefficient export the second direct current.First direct current has larger Current adjustment scope, second direct current has larger voltage regulation limits, first direct current and the second direct current simultaneously accumulators 400 charge, and whole battery charger has the advantage of output current and output voltage stabilization.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a battery charger, is connected with storage battery, and comprise the rectifier transformer module for carrying out rectification and transformation process to electric main, it is characterized in that, described battery charger also comprises:
Current control module, input connects the output of described rectifier transformer module, exports the first direct current for the galvanic voltage swing that exports according to described rectifier transformer module and predetermined current coefficient;
Voltage control module, input connects the output of described rectifier transformer module, export the second direct current for the galvanic voltage swing that exports according to described rectifier transformer module and predeterminated voltage coefficient, and the magnitude of voltage controlling the output of described current control module is equal with described second galvanic magnitude of voltage;
Current steering block, input connects the output of described current control module and the output of described voltage control module simultaneously, and output connects the input of described storage battery, for guiding described first direct current and described second direct current to described storage battery.
2. battery charger as claimed in claim 1, it is characterized in that, described battery charger also comprises charge prompting module, input connects the instruction power end of described current control module, output connects the input of described storage battery, for pointing out the charging complete progress of described storage battery.
3. battery charger as claimed in claim 1, it is characterized in that, described current control module comprises voltage stabilizing chip and resistance R2;
The input of described voltage stabilizing chip is the input of described current control module, the output of described voltage stabilizing chip and the first end of described resistance R2 connect the instruction power end forming described current control module altogether, the earth terminal ground connection of described voltage stabilizing chip, second end of described resistance R2 is the output of described current control module.
4. battery charger as claimed in claim 1, it is characterized in that, described current control module comprises:
Voltage stabilizing chip, resistance R2, resistance R6 and adjustable resistance R7;
The input of described voltage stabilizing chip is the input of described current control module, second end of the output of described voltage stabilizing chip, the first end of described resistance R2 and described resistance R6 connects the instruction power end forming described current control module altogether, the earth terminal of described voltage stabilizing chip and the first end of described resistance R6 are connected to the first end of described adjustable resistance R7 altogether, the second end ground connection of described adjustable resistance R7, second end of described resistance R2 is the output of described current control module.
5. battery charger as claimed in claim 1, it is characterized in that, described voltage control module comprises:
Resistance R3, resistance R4, adjustable resistance R5, the first diode, electric capacity C1 and voltage-stabiliser tube;
The first end of described resistance R3 is the input of described voltage control module, second end of described resistance R3 and the anode of described first diode are connected to the negative electrode of described voltage-stabiliser tube altogether, the negative electrode of described first diode and the first end of described adjustable resistance R5 connect the output forming described voltage control module altogether, the first end of second end of described adjustable resistance R5, the first end of described resistance R4 and described electric capacity C1 is connected to the reference edge of described voltage-stabiliser tube altogether, and second end of described resistance R4, second end of described electric capacity C1 and the anode of described voltage-stabiliser tube are connected to ground altogether.
6. battery charger as claimed in claim 2, it is characterized in that, described charge prompting module comprises resistance R1 and light-emitting diode;
The first end of described resistance R1 is the input of described charge prompting module, and second end of described resistance R1 connects the anode of described light-emitting diode, and the negative electrode of described light-emitting diode is the output of described charge prompting module.
7. battery charger as claimed in claim 1, it is characterized in that, described storage battery is lithium battery.
8. battery charger as claimed in claim 1, it is characterized in that, described Current steering block is the second diode;
The anode of described second diode is the input of described Current steering block, and the negative electrode of described second diode is the output of described Current steering block.
9. battery charger as claimed in claim 1, it is characterized in that, described Current steering block comprises resistance R8 and the 3rd diode;
The first end of described resistance R8 is the input of described Current steering block, and second end of described resistance R8 connects the anode of described 3rd diode, and the negative electrode of described 3rd diode is the output of described Current steering block.
10. a battery charger, comprises housing, it is characterized in that, described battery charger also comprises the battery charger as described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310360424.4A CN104377794A (en) | 2013-08-16 | 2013-08-16 | Battery charging circuit and battery charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310360424.4A CN104377794A (en) | 2013-08-16 | 2013-08-16 | Battery charging circuit and battery charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104377794A true CN104377794A (en) | 2015-02-25 |
Family
ID=52556521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310360424.4A Pending CN104377794A (en) | 2013-08-16 | 2013-08-16 | Battery charging circuit and battery charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104377794A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201656536U (en) * | 2010-04-12 | 2010-11-24 | 郑州众智电子设备有限公司 | Automatic floating charger of generator set storage battery |
| CN202586472U (en) * | 2012-06-01 | 2012-12-05 | 宁波市亿嘉汽车电器有限公司 | Automobile charging system |
-
2013
- 2013-08-16 CN CN201310360424.4A patent/CN104377794A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201656536U (en) * | 2010-04-12 | 2010-11-24 | 郑州众智电子设备有限公司 | Automatic floating charger of generator set storage battery |
| CN202586472U (en) * | 2012-06-01 | 2012-12-05 | 宁波市亿嘉汽车电器有限公司 | Automobile charging system |
Non-Patent Citations (1)
| Title |
|---|
| 李天才: "《用LM317和TL431组成的恒流、恒压充电器电路》", 《广电电器网》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101197243B1 (en) | Portable Power Supply Device | |
| CN202333882U (en) | Direct-current power supply having redundant backup function | |
| CN201750171U (en) | Novel traveling emergency charger | |
| CN203826996U (en) | Rapid-charge power supply combining super capacitor with conventional battery | |
| CN201266996Y (en) | Mobile phone battery and mobile phone with the same | |
| CN206442169U (en) | Portable type solar recharging knapsack | |
| CN104617648A (en) | Charging control circuit and charging device | |
| CN206250822U (en) | A kind of lead-acid accumulator is internalized into discharge and recharge power supply | |
| CN201781311U (en) | Simple portable storage battery charger for direct current panel | |
| CN104377794A (en) | Battery charging circuit and battery charger | |
| CN103779839B (en) | A kind of automatic shutoff start-up circuit adopting rechargeable battery to power | |
| CN203334706U (en) | Mobile house achieving hybrid power generation | |
| CN207743728U (en) | A kind of wireless adapter power supply circuit | |
| CN206775211U (en) | A kind of solar energy constant charge device | |
| CN204597576U (en) | Use the USB emergency power supply of various battery | |
| CN202261422U (en) | Mobile phone | |
| CN204118776U (en) | A kind of power supply adaptor control circuit for 3G mobile terminal | |
| CN220822683U (en) | Charging control circuit and charging control system | |
| CN204928207U (en) | But lithium ion battery of pressure regulating group | |
| CN202696252U (en) | Multifunctional charger | |
| CN204068289U (en) | Conjuncted battery | |
| CN203722214U (en) | Self-switching-off starting circuit powered by rechargeable battery | |
| CN206332487U (en) | It is a kind of to reduce the circuit that rechargeable battery lets out electric current over the ground | |
| CN203522280U (en) | Mobile phone charger with utilization of solar energy | |
| CN209001619U (en) | 1.5V is the same as mouth charge-discharge circuit for a kind of heavy duty detergent lithium ion battery 3.7V conversion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150225 |
|
| RJ01 | Rejection of invention patent application after publication |