CN109980733A - Laptop electric power direct current output charging connection wire circuit - Google Patents
Laptop electric power direct current output charging connection wire circuit Download PDFInfo
- Publication number
- CN109980733A CN109980733A CN201910265978.3A CN201910265978A CN109980733A CN 109980733 A CN109980733 A CN 109980733A CN 201910265978 A CN201910265978 A CN 201910265978A CN 109980733 A CN109980733 A CN 109980733A
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- resistance
- triode
- diode
- laptop
- voltage
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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.)
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
-
- 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
-
- 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
Abstract
A kind of laptop electric power direct current output charging connection wire circuit, characterized by comprising: DC1 voltage input end, DC2 voltage output end, resistance R1, diode D1, diode D2, resistance R4, resistance R5, triode Q1, triode Q2, resistance R3, zener diode VD1, resistance R6, diode D4, resistance R7, capacitor C2, resistance R8, triode Q3, diode D5, resistance R9, triode Q4, resistance R10, capacitor C1, diode D3, field-effect tube VT1, resistance R2 and LED1；The present invention is automatically powered off after fully charged by changing the circuit structure of traditional computer charging cable after delay a period of time, so that battery be made in laptop not overcharged and generate overheat, bulge etc., is reached protection battery and is extended battery.
Description
Technical field
The present invention relates to charging cable technical field, specially a kind of laptop electric power direct current output charging connection wire electricity
Road.
Background technique
Power source charges connecting line line mainly provides electricity to equipment and charges the battery, power supply adapter for notebook computer
Working principle in simple terms: be exactly that the principle of unstable power utilization Switching Power Supply become notebook by conversion circuit
The constant voltage DC electricity that computer needs, powers and is charged to laptop.
The charging connection wire of traditional power supply adapter for notebook computer charges to cells in notebook computer duration, in pen
It when remembering that this computer is closed, cannot be automatically powered off in the state that battery is fully charged, battery is made in notebook to stop charging, this is just not
Electric energy is only wasted, is also easy to cause battery in notebook to be overcharged, shortens battery.
Summary of the invention
The present invention provides a kind of with the laptop electricity for saving power resource to solve the deficiencies in the prior art
Source direct current output charging connection wire circuit.
A kind of laptop electric power direct current output charging connection wire circuit, comprising: DC1 voltage input end, DC2 voltage are defeated
Outlet, resistance R1, diode D1, diode D2, resistance R4, resistance R5, triode Q1, triode Q2, resistance R3, pressure stabilizing two
Pole pipe VD1, resistance R6, diode D4, resistance R7, capacitor C2, resistance R8, triode Q3, diode D5, resistance R9, triode
Q4, resistance R10, capacitor C1, diode D3, field-effect tube VT1, resistance R2 and LED1；
Wherein, the positive and negative anodes of DC1 voltage input end and DC2 voltage output end are respectively connected with, the diode D2 anode,
The one end resistance R4, the one end resistance R5, triode Q4 collector and the one end resistance R2 be respectively connected to DC1 voltage input end anode and
Between the anode of DC2 voltage output end, the diode D2 cathode is connected to triode Q2 emitter, the triode Q2 collector
It is connected to diode D3 anode, the resistance R4 other end and the one end resistance R3 are connected to triode Q2 base stage, and the resistance R3 is another
One end is connected to triode Q1 collector, and it is defeated that the triode Q1 base stage is connected to diode D1 anode, the one end resistance R1 and DC1 voltage
Enter between end and DC2 voltage output end cathode, the diode D1 cathode, the resistance R1 other end and triode Q1 emitter phase
It connects, and the triode Q1 emitter and the resistance R1 other end are connected to DC1 voltage input end and DC2 voltage output end cathode simultaneously
Between；
The diode D3 cathode is connected to the one end capacitor C1, the one end resistance R9 and triode Q3 collector, and the capacitor
The one end C1 connects with triode Q3 collector simultaneously with the one end resistance R9, capacitor C1 other end ground connection；The triode Q3 transmitting
Pole is connected to diode D5 cathode, and the triode Q3 base stage is connected to the one end resistance R8, and the resistance R8 is another to be connected to diode
D4 anode, the diode D5 anode, the one end resistance R7, diode D4 cathode, the one end resistance R6 and zener diode VD1 are negative
It is extremely connected to the resistance R5 other end, zener diode VD1 anode and the resistance R6 other end are grounded, the resistance R7 other end
It is connected to the one end capacitor C2, capacitor C2 other end ground connection；
The resistance R9 is another to be connected to triode Q4 base stage, and the triode Q4 emitter is connected to field through resistance R10 and imitates
Should pipe VT1 G grade, the S grade of the field-effect tube VT1 is connected to DC1 voltage input end cathode, and the D grade of field-effect tube VT1 is connected to
The cathode of DC2 voltage output end, the resistance R2 is another to be connected to LED1 anode, and the LED1 cathode is connected to field-effect tube VT1
D grade.
The triode Q1 emitter ground connection.
Working principle:
The DC1 input terminal of laptop DC output charging connection wire is connected to power supply adapter for notebook computer first
DC output end on, then by the supply input of laptop electric power direct current output charging cable circuit connection to laptop
On end, power supply adapter for notebook computer 220V input line is connected on 220V power supply at this time, laptop adapter is defeated
19V voltage out divides two-way through DC1 anode, is depressured all the way through resistance R5,12V voltage is exported after voltage-stabiliser tube VD1 pressure stabilizing, through electricity
R7 is hindered to while capacitor C2 charging, triode Q3 is connected, triode Q3 collector output high level charges to capacitor C1
Triode Q4 is connected to triode Q4 base stage in resistance R9 simultaneously, and triode Q4 emitter output high level is shown up through resistance R10
Field-effect tube VT1 is connected in the G grade of effect pipe VT1, so that the end DC2 is exported 19V voltage and charges to laptop internal cell
Machine is powered to laptop internal circuit, is charged normal at this time when laptop internal cell must establish the beginning by cable；Such as notebook
After the work of computer normal boot-strap, triode Q1 is connected the DC voltage for generating about 0.5-0.7 in the negative pole end of diode D1,
Triode Q2 is connected, the positive 19V voltage of DC1 input terminal is connected to the emitter of triode Q2 through diode D2 at this time, and more than three
After a Q2 conducting, triode Q2 collector, which exports while high level charges after diode D3 conducting to capacitor C1, makes three poles
Pipe Q4 is held on, and field-effect tube VT1 is held on, and the end DC2 keeps output 19V voltage, and over time, capacitor C2 is filled
After full electricity, triode Q3 is in off state, and after triode Q3 cut-off, and laptop has been in battery charging or has opened at this time
After machine working condition, the voltage of about 0.5-0.7V or so is still had in the cathode of diode D1, makes three several Q1 still in conducting
State makes triode Q2 still on state, makes triode Q4 still on state, makes field-effect tube VT1 still in leading
Logical state, laptop keep booting working condition or are in battery charging state；
After laptop normal shutdown, and after battery also has been filled with electricity in laptop, by middle diode D1's
The pressure drop very little that negative pole end generates, only about 0.3V cannot be such that triode Q1 is connected, after triode Q1 cut-off at this time, capacitor C1
It is discharged, at this time triode Q4 and field-effect tube VT1 cut-off, so that the end DC2 voltage output is disconnected, to protect notebook electric
Intracerebral battery automatically powers off after fully charged rear delay a period of time, so that battery in laptop be made not overcharged and be generated
Overheat, bulge etc. reach protection battery and extend battery；
As long as when charging again to laptop in use, by laptop electric power direct current output connecting line circuit
DC1 output end and power supply adapter for notebook computer DC output end disconnect reconnect it is good after can normal use, when DC1 is defeated
Enter end disconnect after, capacitor C2 will by diode D4, resistance R6 to discharge, so that DC1 input terminal is being connected to DC 19V voltage
Afterwards, can work normally triode Q3.
Compared with prior art, the beneficial effects of the present invention are: the circuit that the present invention passes through the traditional computer charging cable of change
Structure automatically powers off after fully charged rear delay a period of time, so that battery in laptop be made not overcharged and be generated
Heat, bulge etc. reach protection battery and extend battery.
Detailed description of the invention
Fig. 1 is electrical block diagram of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In description of the invention, it should be noted that the orientation of the instructions such as term "vertical", "upper", "lower", "horizontal" or
Person's positional relationship is orientation based on the figure or positional relationship, is merely for convenience of this practical and simplified description of description,
Rather than the device or element of instruction or hint meaning must have a particular orientation, and are constructed and grasped with specific orientation
Make, therefore is not considered as limiting the invention.In addition, " first ", " second ", " third ", " the 4th " are only used for description mesh
, and should not be understood as indicating or implying relative importance.
In description of the invention, it is also necessary to explanation, unless otherwise specific regulation and limitation, term " setting ", " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection, can be mechanical connection, is also possible to be electrically connected, can be and be directly connected to, and be also possible to be connected by intermediary, can
To be the connection inside two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned
The concrete meaning of term in the present invention.
Please refer to Fig. 1:
A kind of laptop electric power direct current output charging connection wire circuit, comprising: DC1 voltage input end, DC2 voltage are defeated
Outlet, resistance R1, diode D1, diode D2, resistance R4, resistance R5, triode Q1, triode Q2, resistance R3, pressure stabilizing two
Pole pipe VD1, resistance R6, diode D4, resistance R7, capacitor C2, resistance R8, triode Q3, diode D5, resistance R9, triode
Q4, resistance R10, capacitor C1, diode D3, field-effect tube VT1, resistance R2 and LED1；
Wherein, the positive and negative anodes of DC1 voltage input end and DC2 voltage output end are respectively connected with, the diode D2 anode,
The one end resistance R4, the one end resistance R5, triode Q4 collector and the one end resistance R2 are respectively connected to the anode of DC1 voltage input end
Between the anode of DC2 voltage output end, the diode D2 cathode is connected to triode Q2 emitter, the triode Q2 current collection
Pole is connected to diode D3 anode, and the resistance R4 other end and the one end resistance R3 are connected to triode Q2 base stage, the resistance R3
Another to be connected to triode Q1 collector, the triode Q1 base stage is connected to diode D1 anode, the one end resistance R1 and DC1 voltage
Between input terminal and DC2 voltage output end cathode, the diode D1 cathode, the resistance R1 other end and triode Q1 emitter phase
It connects, and the triode Q1 emitter and the resistance R1 other end are connected to DC1 voltage input end and DC2 voltage output end cathode simultaneously
Between；
The diode D3 cathode is connected to the one end capacitor C1, the one end resistance R9 and triode Q3 collector, and the capacitor
The one end C1 connects with triode Q3 collector simultaneously with the one end resistance R9, capacitor C1 other end ground connection；The triode Q3 transmitting
Pole is connected to diode D5 cathode, and the triode Q3 base stage is connected to the one end resistance R8, and the resistance R8 is another to be connected to diode
D4 anode, the diode D5 anode, the one end resistance R7, diode D4 cathode, the one end resistance R6 and zener diode VD1 are negative
It is extremely connected to the resistance R5 other end, zener diode VD1 anode and the resistance R6 other end are grounded, the resistance R7 other end
It is connected to the one end capacitor C2, capacitor C2 other end ground connection；
The resistance R9 is another to be connected to triode Q4 base stage, and the triode Q4 emitter is connected to field through resistance R10 and imitates
Should pipe VT1 G grade, the S grade of the field-effect tube VT1 is connected to DC1 voltage input end cathode, and the D grade of field-effect tube VT1 is connected to
The cathode of DC2 voltage output end, the resistance R2 is another to be connected to LED1 anode, and the LED1 cathode is connected to field-effect tube VT1
D grade.
The triode Q1 emitter ground connection.
Working principle:
The DC1 input terminal of laptop DC output charging connection wire is connected to power supply adapter for notebook computer first
DC output end on, then by the supply input of laptop electric power direct current output charging cable circuit connection to laptop
On end, power supply adapter for notebook computer 220V input line is connected on 220V power supply at this time, laptop adapter is defeated
19V voltage out divides two-way through DC1 anode, is depressured all the way through resistance R5,12V voltage is exported after voltage-stabiliser tube VD1 pressure stabilizing, through electricity
R7 is hindered to while capacitor C2 charging, triode Q3 is connected, triode Q3 collector output high level charges to capacitor C1
Triode Q4 is connected to triode Q4 base stage in resistance R9 simultaneously, and triode Q4 emitter output high level is arrived through resistance R10
The G grade of field-effect tube VT1 is connected field-effect tube VT1, so that the end DC2 is exported 19V voltage and fill to laptop internal cell
Motor is powered to laptop internal circuit, is charged normal at this time when laptop internal cell must establish the beginning by cable；Such as notes
After the work of this computer normal boot-strap, lead triode Q1 the DC voltage for generating about 0.5-0.7 in the negative pole end of diode D1
It is logical, triode Q2 is connected, the positive 19V voltage of DC1 input terminal is connected to the emitter of triode Q2 through diode D2 at this time,
After three several Q2 conductings, triode Q2 collector, which exports while high level charges after diode D3 conducting to capacitor C1, to be made
Triode Q4 is held on, and field-effect tube VT1 is held on, and the end DC2 keeps output 19V voltage, over time, capacitor C2
After being fully charged, triode Q3 is in off state, and after triode Q3 cut-off, and laptop has been in battery charging at this time
Or booting working condition after, still have the voltage of about 0.5-0.7V or so in the cathode of diode D1, make three several Q1 still in
On state makes triode Q2 still on state, makes triode Q4 still on state, locate field-effect tube VT1 still
In on state, laptop keeps booting working condition or is in battery charging state；
After laptop normal shutdown, and after battery also has been filled with electricity in laptop, by middle diode D1's
The pressure drop very little that negative pole end generates, only about 0.3V cannot be such that triode Q1 is connected, after triode Q1 cut-off at this time, capacitor C1
It is discharged, at this time triode Q4 and field-effect tube VT1 cut-off, so that the end DC2 voltage output is disconnected, to protect notebook electric
Intracerebral battery automatically powers off after fully charged rear delay a period of time, so that battery in laptop be made not overcharged and be generated
Overheat, bulge etc. reach protection battery and extend battery；
As long as when charging again to laptop in use, by laptop electric power direct current output connecting line circuit
DC1 output end and power supply adapter for notebook computer DC output end disconnect reconnect it is good after can normal use, when DC1 is defeated
Enter end disconnect after, capacitor C2 will by diode D4, resistance R6 to discharge, so that DC1 input terminal is being connected to DC 19V voltage
Afterwards, can work normally triode Q3.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (5)
1. a kind of laptop electric power direct current output charging connection wire circuit, characterized by comprising: DC1 voltage input end,
DC2 voltage output end, resistance R1, diode D1, diode D2, resistance R4, resistance R5, triode Q1, triode Q2, resistance
R3, zener diode VD1, resistance R6, diode D4, resistance R7, capacitor C2, resistance R8, triode Q3, diode D5, resistance
R9, triode Q4, resistance R10, capacitor C1, diode D3, field-effect tube VT1, resistance R2 and LED1；
Wherein, the positive and negative anodes of DC1 voltage input end and DC2 voltage output end are respectively connected with, the diode D2 anode, resistance
The one end R4, the one end resistance R5, triode Q4 collector and the one end resistance R2 are respectively connected to the anode and DC2 of DC1 voltage input end
Between the anode of voltage output end, the diode D2 cathode is connected to triode Q2 emitter, and the triode Q2 collector connects
To diode D3 anode, the resistance R4 other end and the one end resistance R3 are connected to triode Q2 base stage, and the resistance R3 is another
It is connected to triode Q1 collector, the triode Q1 base stage is connected to diode D1 anode, the one end resistance R1 and DC1 voltage input
Between end and DC2 voltage output end cathode, the diode D1 cathode, the resistance R1 other end connect with triode Q1 emitter；
The diode D3 cathode is connected to the one end capacitor C1, the one end resistance R9 and triode Q3 collector, and the capacitor C1 mono-
End connects with triode Q3 collector simultaneously with the one end resistance R9, capacitor C1 other end ground connection；The triode Q3 emitter connects
To diode D5 cathode, the triode Q3 base stage is connected to the one end resistance R8, and the resistance R8 is another to be connected to diode D4 just
Pole, the diode D5 anode, the one end resistance R7, diode D4 cathode, the one end resistance R6 and zener diode VD1 cathode are equal
It is connected to the resistance R5 other end, zener diode VD1 anode and the resistance R6 other end are grounded, and the resistance R7 is another to be connected to electricity
Hold the one end C2, capacitor C2 other end ground connection；
The resistance R9 is another to be connected to triode Q4 base stage, and the triode Q4 emitter is connected to field-effect tube through resistance R10
The G grade of VT1, the S grade of the field-effect tube VT1 are connected to DC1 voltage input end cathode, and the D grade of field-effect tube VT1 is connected to DC2 electricity
The cathode of output end is pressed, the resistance R2 is another to be connected to LED1 anode, and the LED1 cathode is connected to the D grade of field-effect tube VT1.
2. laptop electric power direct current output charging connection wire circuit according to claim 1, it is characterised in that: described
Triode Q1 emitter ground connection.
3. laptop electric power direct current output charging connection wire circuit according to claim 1, it is characterised in that: described
Triode Q1 emitter and the resistance R1 other end are connected between DC1 voltage input end and DC2 voltage output end cathode simultaneously.
4. laptop electric power direct current output charging connection wire circuit according to claim 1, it is characterised in that: described
Capacitor C1 other end ground connection.
5. a kind of charging side of any one of claim 1-4 laptop electric power direct current output charging connection wire circuit
Method, it is characterised in that:
The DC1 input terminal of laptop DC output charging connection wire is connected to the straight of power supply adapter for notebook computer first
It flows on output end, then by the energization input of laptop electric power direct current output charging cable circuit connection to laptop
On, power supply adapter for notebook computer 220V input line is connected on 220V power supply at this time, laptop adapter output
19V voltage divide two-way through DC1 anode, be depressured all the way through resistance R5, after voltage-stabiliser tube VD1 pressure stabilizing export 12V voltage, through resistance R7
While charging to capacitor C2, triode Q3 is connected, triode Q3 collector exports high level to while capacitor C1 charging
Triode Q4 is connected to triode Q4 base stage in resistance R9, and triode Q4 emitter exports high level through resistance R10 to field-effect
The G grade of pipe VT1 is connected field-effect tube VT1, the end DC2 is made to export 19V voltage to laptop internal cell charger to pen
Remember that this computer internal circuit is powered, is charged normal at this time when laptop internal cell must establish the beginning by cable；Just such as laptop
After normally opened machine work, triode Q1 is connected the DC voltage for generating about 0.5-0.7 in the negative pole end of diode D1, makes three poles
Pipe Q2 conducting, the positive 19V voltage of DC1 input terminal is connected to the emitter of triode Q2 through diode D2 at this time, and three several Q2 are led
After logical, triode Q2 collector, which exports while high level charges after diode D3 conducting to capacitor C1, keeps triode Q4
Conducting, field-effect tube VT1 are held on, and the end DC2 keeps output 19V voltage, over time, after capacitor C2 is fully charged,
Triode Q3 is in off state, and after triode Q3 cut-off, and laptop has been in battery charging or booting work at this time
After state, the voltage of about 0.5-0.7V or so is still had in the cathode of diode D1, makes three several Q1 still on state, makes
Triode Q2 makes triode Q4 still on state still on state, makes field-effect tube VT1 still on state,
Laptop keeps booting working condition or is in battery charging state；
After laptop normal shutdown, and after battery also has been filled with electricity in laptop, by the cathode of middle diode D1
The pressure drop very little generated is held, only about 0.3V cannot be such that triode Q1 is connected, and after triode Q1 cut-off at this time, capacitor C1 is put
Complete electricity, triode Q4 and field-effect tube VT1 cut-off at this time, so that the end DC2 voltage output is disconnected, to protect in laptop
Battery automatically powers off after fully charged rear delay a period of time, so that battery in laptop be made not overcharged and be generated
Heat, bulge etc. reach protection battery and extend battery；
As long as when charging again to laptop in use, by the DC1 of laptop electric power direct current output connecting line circuit
Output end and power supply adapter for notebook computer DC output end disconnect reconnect it is good after can normal use, when DC1 is inputted
End disconnect after, capacitor C2 will by diode D4, resistance R6 to discharge, make DC1 input terminal after being connected to DC19V voltage,
Can work normally triode Q3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910265978.3A CN109980733A (en) | 2019-04-03 | 2019-04-03 | Laptop electric power direct current output charging connection wire circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910265978.3A CN109980733A (en) | 2019-04-03 | 2019-04-03 | Laptop electric power direct current output charging connection wire circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109980733A true CN109980733A (en) | 2019-07-05 |
Family
ID=67082615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910265978.3A Pending CN109980733A (en) | 2019-04-03 | 2019-04-03 | Laptop electric power direct current output charging connection wire circuit |
Country Status (1)
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| CN (1) | CN109980733A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504730A (en) * | 2019-09-02 | 2019-11-26 | 宁波唯嘉软件科技有限公司 | A kind of lithium battery USB jack method of supplying power to, storage medium, device |
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| JPH06189463A (en) * | 1992-12-16 | 1994-07-08 | Matsushita Electric Works Ltd | Charging apparatus |
| CN201417929Y (en) * | 2009-05-12 | 2010-03-03 | 王玉刚 | Charger protection circuit |
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| CN110504730A (en) * | 2019-09-02 | 2019-11-26 | 宁波唯嘉软件科技有限公司 | A kind of lithium battery USB jack method of supplying power to, storage medium, device |
| CN110504730B (en) * | 2019-09-02 | 2021-09-10 | 宁波唯嘉软件科技有限公司 | Lithium battery USB socket power supply method, storage medium and device |
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Application publication date: 20190705 |
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