CN106253429A - A kind of charger - Google Patents
A kind of charger Download PDFInfo
- Publication number
- CN106253429A CN106253429A CN201610719705.8A CN201610719705A CN106253429A CN 106253429 A CN106253429 A CN 106253429A CN 201610719705 A CN201610719705 A CN 201610719705A CN 106253429 A CN106253429 A CN 106253429A
- Authority
- CN
- China
- Prior art keywords
- circuit
- charger
- governor
- transformator
- electric capacity
- 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
- 238000013519 translation Methods 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 230000005611 electricity Effects 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000002459 sustained effect Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- H02J7/02—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
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
-
- H02J7/027—
-
- H02J7/045—
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of charger, including manual switch circuit, transformator T1, rectification circuit, DC/DC translation circuit, filter circuit and governor circuit, one end of described manual switch circuit is connected with alternating current power supply, the other end is connected with the former limit of described transformator T1, the secondary of described transformator T1 is connected with described rectification circuit, described rectification circuit is sequentially connected with described DC/DC translation circuit and described filter circuit, the outfan of described filter circuit is provided with output voltage detecting circuit and output current detection circuit, described output voltage detecting circuit and output current detection circuit are all connected with described governor circuit, described governor circuit is connected with described DC/DC translation circuit, described governor circuit is connected with described manual switch circuit by the second drive circuit.Present invention, avoiding charger to be connected for a long time with power supply.
Description
Technical field
The present invention relates to a kind of charger for accumulator charging.
Background technology
The electronic equipments such as current mobile phone, PAD, notebook have commonly used, and these electronic equipments generally utilize accumulator
Powering for it, accumulator is charged by charger.At present in charging, charger is generally inserted directly into supply socket by user, passes through
Power line is its charging, but active user is after charging complete, often forgets about and is separated with charger by equipment, at this moment accumulator
Can be discharged by the electronic circuit in charger, charger can charge for accumulator repeatedly, and discharge and recharge the most repeatedly reduces
In the service life of accumulator, accumulator is connected the most dangerous for a long time with power supply simultaneously, and charger inserts on socket for a long time, charging
Device and power line can produce small electric leakage, cause energy waste.
Summary of the invention
For the defect of prior art, the invention provides a kind of charger.
A kind of charger, including manual switch circuit, transformator T1, rectification circuit, DC/DC translation circuit, filter circuit
And governor circuit, one end of described manual switch circuit is connected with alternating current power supply, the former limit phase of the other end and described transformator T1
Even, the secondary of described transformator T1 is connected with described rectification circuit, described rectification circuit and described DC/DC translation circuit and described
Filter circuit is sequentially connected with, and the outfan of described filter circuit is provided with output voltage detecting circuit and output electric current measure electricity
Road, described output voltage detecting circuit and output current detection circuit be all connected with described governor circuit, described governor circuit with
Described DC/DC translation circuit connects, and described governor circuit is connected with described manual switch circuit by the second drive circuit.
Optionally, described on-off circuit includes hand switch K1 and solenoid J1, described solenoid J1 and described the
Two drive circuits connect.Described rectification circuit includes diode D1 and electric capacity C1, one end of described diode D1 and described transformation
The secondary of device T1 is connected, and the other end of described diode D1 is connected with one end of electric capacity C1, the other end ground connection of electric capacity C1.Described
DC/DC translation circuit includes switching tube Q1 and the first drive circuit, the input of described first drive circuit and described master control electricity
Road connects, and the outfan of described first drive circuit is connected with described switching tube Q1.Described filter circuit includes inductance L1 and electricity
Holding C2, one end of described inductance L1 is connected with described DC/DC translation circuit, the other end of inductance L1 and one end of described electric capacity C2
Connect, the other end ground connection of electric capacity C2.Two ends inverse parallel at described filter circuit has sustained diode 2.Described filter circuit
Outfan be provided with output voltage detecting circuit and output current detection circuit, output voltage detecting circuit and output electric current inspection
Slowdown monitoring circuit is connected with described governor circuit.Described governor circuit include constant voltage drive module, constant-current driven module, memory module,
Timing module and CPU, described constant voltage drives module, constant-current driven module, memory module, timing module to be all connected with described CPU.
The invention has the beneficial effects as follows: use hand switch, need manual closing switch K1 when needs charge, in charging
Switch K1 after completing to automatically spring open, deenergization, so when charger inserts on socket for a long time, also can guarantee that charger and electricity
It is off-state between source, it is to avoid charging repeatedly to battery after charging complete, it also avoid charger and produce on power line
Electric leakage；Charging uses constant current-Isobarically Control, can guarantee that charging process is steady.
Accompanying drawing explanation
Fig. 1 is the structural representation of charger of the present invention.
Detailed description of the invention
Understandable, below in conjunction with the accompanying drawings to the present invention for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from
Detailed description of the invention be described in detail, make above and other purpose, feature and the advantage of the present invention to become apparent from.Entirely
The part that reference instruction identical in portion's accompanying drawing is identical.Accompanying drawing the most drawn to scale, it is preferred that emphasis is illustrate this
Bright purport.
As it is shown in figure 1, the charger of the present invention includes that manual switch circuit, transformator T1, rectification circuit, DC/DC convert
Circuit, filter circuit and governor circuit, one end of described manual switch circuit is connected with alternating current power supply, the other end and described transformation
The former limit of device T1 is connected, and the secondary of described transformator T1 is connected with described rectification circuit, and described rectification circuit becomes with described DC/DC
Changing circuit and described filter circuit is sequentially connected with, the outfan of described filter circuit is provided with output voltage detecting circuit and output
Current detection circuit, described output voltage detecting circuit and output current detection circuit are all connected with described governor circuit, described
Governor circuit is connected with described DC/DC translation circuit, and described governor circuit is by the second drive circuit and described hand switch electricity
Road connects.
In the present invention, described on-off circuit includes hand switch K1 and solenoid J1, and described solenoid J1 is with described
Second drive circuit connects.When charging, manual closing switch K1, switch on power and start to charge up, after charging complete, electromagnetic wire
Circle J1 obtains electric, and solenoid J1 produces magnetic force and the switch K1 suction of Guan Bi opened, thus reaches the purpose of power-off.Described rectification circuit
Using halfwave rectifier, including diode D1 and electric capacity C1, one end of described diode D1 is connected with the secondary of described transformator T1,
The other end of described diode D1 is connected with one end of electric capacity C1, the other end ground connection of electric capacity C1.Electric capacity C1 is filter capacitor, can
So that the output of rectification circuit is more smooth.
Transformator T1 is step-down transformer, and alternating current 220V voltage is reduced by it, by rectification circuit by the output of transformator
Becoming the direct current of about 24V, DC/DC translation circuit is for being further transformed to the DC voltage (about 24V) that commutator exports
It is suitably for the circuit of equipment charge.DC/DC translation circuit includes switching tube Q1 and the first drive circuit, described first drive circuit
Input be connected with described governor circuit, the outfan of described first drive circuit is connected with described switching tube Q1, the present invention
In by the way of drive circuit is with PWM (pulse width modulation), drive the opening and closing of switching tube Q1, so that switching tube Q1 is defeated
Go out different grades of DC voltage, complete DC/DC conversion.Switching tube Q1 can be IGBT, IGCT, metal-oxide-semiconductor etc..
Described filter circuit is LC filter circuit, including inductance L1 and electric capacity C2, one end of described inductance L1 and described DC/
DC translation circuit connects, and the other end of inductance L1 is connected with one end of described electric capacity C2, the other end ground connection of electric capacity C2.Further
, can be in two ends inverse parallel one sustained diode 2 of filter circuit, at charger after power supply disconnects, due to inductance L1 with
Also storing electric energy in electric capacity C2, at this moment diode D2 conducting, discharges the electric energy in inductance L1 and electric capacity C2.
The outfan of described filter circuit is provided with output voltage detecting circuit and output current detection circuit, output voltage
Testing circuit and output current detection circuit are connected with described governor circuit, and described governor circuit includes that constant voltage drives module, perseverance
Stream drives module, memory module, timing module and CPU, and described constant voltage drives module, constant-current driven module, memory module, timing
Module is all connected with described CPU.
During this is novel, charging process is used the charging modes of constant current-constant voltage by governor circuit control, charging.At the beginning of charging
Stage beginning uses constant-current charge, after detecting that charging current is reduced to below the first current threshold, changes constant-voltage charge into, is opening
After beginning constant-voltage charge, timing module starts timing, and after reaching the first clocking value, CPU sends open command and drives electricity to second
Road, the second drive circuit drives solenoid J1 work, and switch K1 is inhaled from contact and opens by solenoid J1, thus reaches power-off
Purpose.Constant-current driven module adjusts according to the output current value detected by output electric current measure module and drives switching tube Q1's
The pulse width of PWM, so that charging current remains constant, after constant-current charge completes, constant voltage drives module to start working,
It is according to the pulse width of the PWM of the output voltage values adjustment switching tube Q1 detected, so that charging voltage remains constant.
First current threshold, the first clocking value are stored in memory module.
The present invention uses hand switch, needs manual closing switch K1 when needs charge, and switchs K1 after charging complete
Automatically spring open, deenergization, so when charger inserts on socket for a long time, also can guarantee that between charger and power supply as disconnecting shape
State, it is to avoid charging repeatedly to battery after charging complete, it also avoid the electric leakage produced on charger and power line；Charging is adopted
With constant current-Isobarically Control, can guarantee that charging process is steady.
Elaborate a lot of detail in the above description so that fully understanding the present invention.But above description is only
Presently preferred embodiments of the present invention, the present invention can implement to be much different from alternate manner described here, therefore originally
Invention is not limited by disclosed above being embodied as.The most any those skilled in the art are without departing from the technology of the present invention
In the case of aspects, technical solution of the present invention is made many possible by the method and the technology contents that all may utilize the disclosure above
Variation and modification, or it is revised as the Equivalent embodiments of equivalent variations.Every content without departing from technical solution of the present invention, according to this
The technical spirit of invention, to any simple modification made for any of the above embodiments, equivalent variations and modification, all still falls within skill of the present invention
In the range of the protection of art scheme.
Claims (8)
1. a charger, it is characterised in that include manual switch circuit, transformator T1, rectification circuit, DC/DC translation circuit,
Filter circuit and governor circuit, one end of described manual switch circuit is connected with alternating current power supply, the other end and described transformator T1
Former limit be connected, the secondary of described transformator T1 is connected with described rectification circuit, and described rectification circuit and described DC/DC conversion is electric
Road and described filter circuit are sequentially connected with, and the outfan of described filter circuit is provided with output voltage detecting circuit and output electric current
Testing circuit, described output voltage detecting circuit and output current detection circuit be all connected with described governor circuit, described master control
Circuit is connected with described DC/DC translation circuit, and described governor circuit is by the second drive circuit with described manual switch circuit even
Connect.
Charger the most according to claim 1, it is characterised in that described on-off circuit includes hand switch K1 and electromagnetic wire
Circle J1, described solenoid J1 are connected with described second drive circuit.
Charger the most according to claim 1, it is characterised in that described rectification circuit includes diode D1 and electric capacity C1,
One end of described diode D1 is connected with the secondary of described transformator T1, the other end of described diode D1 and one end of electric capacity C1
It is connected, the other end ground connection of electric capacity C1.
Charger the most according to claim 1, it is characterised in that described DC/DC translation circuit includes switching tube Q1 and
One drive circuit, the input of described first drive circuit is connected with described governor circuit, the output of described first drive circuit
End is connected with described switching tube Q1.
Charger the most according to claim 1, it is characterised in that described filter circuit includes inductance L1 and electric capacity C2, institute
The one end stating inductance L1 is connected with described DC/DC translation circuit, and the other end of inductance L1 is connected with one end of described electric capacity C2, electricity
Hold the other end ground connection of C2.
Charger the most according to claim 1, it is characterised in that the two ends inverse parallel at described filter circuit has afterflow two
Pole pipe D2.
Charger the most according to claim 1, it is characterised in that the outfan of described filter circuit is provided with output voltage
Testing circuit and output current detection circuit, output voltage detecting circuit and output current detection circuit are with described governor circuit even
Connect.
Charger the most according to claim 1, it is characterised in that described governor circuit includes that constant voltage drives module, constant current
Driving module, memory module, timing module and CPU, described constant voltage drives module, constant-current driven module, memory module, timing mould
Block is all connected with described CPU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610719705.8A CN106253429A (en) | 2016-08-25 | 2016-08-25 | A kind of charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610719705.8A CN106253429A (en) | 2016-08-25 | 2016-08-25 | A kind of charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106253429A true CN106253429A (en) | 2016-12-21 |
Family
ID=57596418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610719705.8A Pending CN106253429A (en) | 2016-08-25 | 2016-08-25 | A kind of charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106253429A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202206178U (en) * | 2011-08-03 | 2012-04-25 | 安徽省高程电子科技有限公司 | AC/DC charging supply |
| CN202679047U (en) * | 2012-06-19 | 2013-01-16 | 王洪锋 | Automatic power-off protective charger |
| CN205004814U (en) * | 2015-09-18 | 2016-01-27 | 傅友权 | Auto -power -off function charger has |
| CN205921432U (en) * | 2016-08-25 | 2017-02-01 | 陈宗仁 | Charger |
-
2016
- 2016-08-25 CN CN201610719705.8A patent/CN106253429A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202206178U (en) * | 2011-08-03 | 2012-04-25 | 安徽省高程电子科技有限公司 | AC/DC charging supply |
| CN202679047U (en) * | 2012-06-19 | 2013-01-16 | 王洪锋 | Automatic power-off protective charger |
| CN205004814U (en) * | 2015-09-18 | 2016-01-27 | 傅友权 | Auto -power -off function charger has |
| CN205921432U (en) * | 2016-08-25 | 2017-02-01 | 陈宗仁 | Charger |
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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: 20161221 |
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| RJ01 | Rejection of invention patent application after publication |