CN205921432U - Charger - Google Patents
Charger Download PDFInfo
- Publication number
- CN205921432U CN205921432U CN201620936773.5U CN201620936773U CN205921432U CN 205921432 U CN205921432 U CN 205921432U CN 201620936773 U CN201620936773 U CN 201620936773U CN 205921432 U CN205921432 U CN 205921432U
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- China
- Prior art keywords
- circuit
- charger
- drive
- electric capacity
- charger according
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- 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
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a charger, including hand switch circuit, transformer T1, rectifier circuit, DCDC transfer circuit, filter circuit and master control circuit, the one end of hand switch circuit links to each other with alternating current power supply, the other end with transformer T1's former limit links to each other, transformer T1's vice limit with rectifier circuit links to each other, rectifier circuit with the DCDC transfer circuit with filter circuit connects gradually, filter circuit's output is provided with output voltage detection circuitry and output current detection circuitry, output voltage detection circuitry and output current detection circuitry all with master control circuit connects, master control circuit with DCDC alternaties circuit connection, master control circuit through the 2nd drive circuit with hand switch circuit connection. The utility model discloses avoided charger and power to be connected for a long time.
Description
Technical field
This utility model is related to a kind of charger for accumulator charging.
Background technology
The electronic equipment such as mobile phone, pad, notebook has commonly used at present, and these electronic equipments generally utilize accumulator
Power for it, accumulator is charged by charger.In charging at present, charger is generally inserted directly into supply socket by user, passes through
Power line charges for it, but active user, after charging complete, is often forgotten about and separated equipment with charger, at this moment accumulator
Can repeatedly can be charged for accumulator by the electronic circuit electric discharge in charger, charger, discharge and recharge so repeatedly reduces
The service life of accumulator, simultaneously accumulator be connected for a long time also dangerous with power supply, and charger inserts on socket for a long time, charging
Device and power line can produce small electric leakage, cause energy waste.
Utility model content
For the defect of prior art, this utility model 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, 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 are 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
Hold c2, one end of described inductance l1 is connected with described dc/dc translation circuit, one end of the other end of inductance l1 and described electric capacity c2
Connect, the other end ground connection of electric capacity c2.There is fly-wheel diode d2 in the two ends inverse parallel of described filter circuit.Described filter circuit
Outfan be provided with output voltage detecting circuit and output current detection circuit, output voltage detecting circuit and output 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 drive module, constant-current driven module, memory module, timing module are all connected with described cpu.
The beneficial effects of the utility model are: adopt hand switch, need manual closing switch k1 when needing and charging,
After charging complete, switch k1 automatically springs open, and deenergization, so when charger inserts on socket for a long time, also can guarantee that charger
It is off-state and between power supply, it is to avoid the charging repeatedly to battery after charging complete, it also avoid on charger and power line
The electric leakage producing；Charge and adopt constant current-Isobarically Control, can guarantee that charging process is steady.
Brief description
Fig. 1 is the structural representation of this utility model charger.
Specific embodiment
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with the accompanying drawings to this
The specific embodiment of utility model is described in detail, and so that above and other purpose of the present utility model, feature and advantage is incited somebody to action
Become apparent from.Identical reference instruction identical part in whole accompanying drawings.Not deliberately accompanying drawing drawn to scale, emphasis
It is purport of the present utility model is shown.
As shown in figure 1, charger of the present utility model includes 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 with described
The former limit of transformator t1 is connected, and 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 are sequentially connected, the outfan of described filter circuit be 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 opened with described manually by the second drive circuit
Close circuit to connect.
In this utility model, described on-off circuit includes hand switch k1 and solenoid j1, described solenoid j1 with
Described second drive circuit connects.When charging, manual closing switch k1, switch on power and start to charge up, after charging complete, electricity
Magnetic coil j1 obtains electric, and solenoid j1 produces magnetic force and inhales the switch k1 of closure and opens, thus reaching the purpose of power-off.Described rectification
Circuit adopts halfwave rectifier, including diode d1 and electric capacity c1, the secondary of one end of described diode d1 and described transformator t1
It is connected, 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 filtered electrical
Hold, so that the output of rectification circuit is more smooth.
Transformator t1 is step-down transformer, and it will exchange the reduction of 220v voltage, by rectification circuit by the output of transformator
It is changed into the direct current of about 24v, the DC voltage (about 24v) that dc/dc translation circuit is used for exporting commutator is further transformed to
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, this practicality
In new by way of drive circuit is with pwm (pulse width modulation) driving switch pipe q1 opening and closing so that switching tube
Q1 exports different grades of DC voltage, completes dc/dc conversion.Switching tube q1 can be igbt, IGCT, mos pipe 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 in the two ends inverse parallel one fly-wheel diode d2 of filter circuit, in charger after power supply disconnection, due to inductance l1 with
Electric energy is also stored, at this moment diode d2 conducting, the electric energy in inductance l1 and electric capacity c2 is discharged in 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 constant voltage drive module, perseverance
Stream drive module, memory module, timing module and cpu, described constant voltage drive module, constant-current driven module, memory module, timing
Module is all connected with described cpu.
During this is new, charging process is by governor circuit control, the charging modes charging using constant current-constant voltage.Charging just
Stage beginning adopts constant-current charge, after charging current is detected and be reduced to below the first current threshold, is changed to constant-voltage charge, 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 from contact, open by switching k1, thus reaching power-off by suction for solenoid j1
Purpose.Output current value according to detected by output electric current measure module for the constant-current driven module is adjusting driving switch pipe q1's
The pulse width of pwm, so that charging current remains constant, after the completion of constant-current charge, constant voltage drive module is started working,
It adjusts the pulse width of the pwm of switching tube q1 according to the output voltage values detecting, so that charging voltage remains constant.
First current threshold, the first clocking value are stored in memory module.
This utility model adopts hand switch, needs manual closing switch k1 when needing and charging, opens after charging complete
Close k1 to automatically spring open, deenergization, so when charger inserts on socket for a long time, also can guarantee that between charger and power supply to be disconnected
Open state, it is to avoid the charging repeatedly to battery after charging complete, it also avoid the electric leakage producing on charger and power line；Fill
Electricity adopts constant current-Isobarically Control, can guarantee that charging process is steady.
Elaborate a lot of details in order to fully understand this utility model in the above description.But above description
It is only preferred embodiment of the present utility model, this utility model can be come with being much different from alternate manner described here
Implement, therefore this utility model is not embodied as being limited by disclosed above.Any those skilled in the art exist simultaneously
New to this practicality without departing from the methods and techniques content that the disclosure above under technical solutions of the utility model ambit, all can be utilized
Type technical scheme makes many possible variations and modification, or the Equivalent embodiments being revised as equivalent variations.Every without departing from this
The content of utility model technical scheme, any simply repaiies to made for any of the above embodiments according to technical spirit of the present utility model
Change, equivalent variations and modification, all still fall within the range of technical solutions of the utility model protection.
Claims (8)
1. a kind of 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 is electric with described dc/dc conversion
Road and described filter circuit are sequentially connected, and the outfan of described filter circuit is provided with output voltage detecting circuit and output current
Testing circuit, described output voltage detecting circuit and output current detection circuit are all connected with described governor circuit, described master control
Circuit is connected with described dc/dc translation circuit, and described governor circuit passes through the second drive circuit with described manual switch circuit even
Connect.
2. charger according to claim 1 is 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.
3. charger according to claim 1 is 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.
4. charger according to claim 1 is 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.
5. charger according to claim 1 is 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.
6. charger according to claim 1 is it is characterised in that the two ends inverse parallel in described filter circuit has afterflow two
Pole pipe d2.
7. charger according to claim 1 is 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.
8. charger according to claim 1 is it is characterised in that described governor circuit includes constant voltage drive module, constant current
Drive module, memory module, timing module and cpu, described constant voltage drive 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 |
|---|---|---|---|
| CN201620936773.5U CN205921432U (en) | 2016-08-25 | 2016-08-25 | Charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620936773.5U CN205921432U (en) | 2016-08-25 | 2016-08-25 | Charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205921432U true CN205921432U (en) | 2017-02-01 |
Family
ID=57871103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620936773.5U Expired - Fee Related CN205921432U (en) | 2016-08-25 | 2016-08-25 | Charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205921432U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253429A (en) * | 2016-08-25 | 2016-12-21 | 陈宗仁 | A kind of charger |
-
2016
- 2016-08-25 CN CN201620936773.5U patent/CN205921432U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253429A (en) * | 2016-08-25 | 2016-12-21 | 陈宗仁 | A kind of charger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170201 Termination date: 20190825 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |