CN207518477U - A kind of power supply adaptor exports integrated regulator - Google Patents
A kind of power supply adaptor exports integrated regulator Download PDFInfo
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- CN207518477U CN207518477U CN201721701379.4U CN201721701379U CN207518477U CN 207518477 U CN207518477 U CN 207518477U CN 201721701379 U CN201721701379 U CN 201721701379U CN 207518477 U CN207518477 U CN 207518477U
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Abstract
The utility model discloses a kind of power supply adaptors to export integrated regulator, including chip IC 1, the pin 1 of the chip IC 1 is grounded, the pin 2 of chip IC 1 is connected with the slip terminal of slide rheostat RP, a fixing terminal of swept resistance RP is connected with the anode of capacitance C4 and the anode of output terminal V1, the cathode of capacitance C4 is connected with the cathode of output terminal V1, the cathode ground connection of output terminal V1, another fixing terminal ground connection of swept resistance RP, the pin 7 of chip IC 1 is connected with the pin 6 of chip IC 1, and it is connected with one end of resistance R6 and the anode of capacitance C3, the cathode ground connection of capacitance C3, the other end of resistance R6 is connect with the anode of output terminal V1, the pin 4 of chip IC 1 is connected with the pin 8 of chip IC 1.The utility model can not only ensure the stability of output voltage, protect the safety of terminal device, and can increase substantially the efficiency of power supply.
Description
Technical field
The utility model is related to technical field of electronic equipment more particularly to a kind of output voltage stabilizing of power supply adaptor to integrate electricity
Road.
Background technology
Power supply adaptor (Power adapter) is the power supply transformation of small portable electronic device and electronic apparatus
Equipment is generally made of, its operation principle components such as shell, transformer, inductance, capacitance, control chip IC 1, pcb boards
Direct current output is converted to by exchange input；It can be divided into Direct Plug-In and Table top type by connection mode.Security protection camera is matched in extensively,
In the equipment such as set-top box, router, lamp bar, massage device.
In actual use, most power supply adaptors does not have regulator circuit, although can be straight by AC conversion
Galvanic electricity is used for terminal device, but can not ensure stable voltage output, can not be protected the safety of terminal device, is easy to cause end
End equipment overvoltage or under-voltage damage.
Utility model content
The purpose of this utility model is and a kind of power supply adaptor proposed in order to solve shortcoming in the prior art
Export integrated regulator.
To achieve these goals, the utility model employs following technical solution：
A kind of power supply adaptor exports integrated regulator, and including chip IC 1, the pin 1 of the chip IC 1 is grounded, core
The pin 2 of piece IC1 is connected with the slip terminal of slide rheostat RP, and a fixing terminal of swept resistance RP is connected with capacitance C4
Anode and output terminal V1 anode, the cathode of capacitance C4 is connected with the cathode of output terminal V1, and the cathode ground connection of output terminal V1 is sliding
Another fixing terminal ground connection of dynamic resistance RP, the pin 7 of chip IC 1 are connected, and be connected with electricity with the pin 6 of chip IC 1
One end of R6 and the anode of capacitance C3, the cathode ground connection of capacitance C3 are hindered, the other end of resistance R6 connects with the anode of output terminal V1
It connects；
The pin 4 of the chip IC 1 is connected, and be connected with the anode of output terminal V1, resistance with the pin 8 of chip IC 1
One end of R5, one end of inductance L, the other end of resistance R5 is connected with the pin 5 of chip IC 1, and the pin 5 of chip IC 1 connects
Ground, the other end of inductance L are connected with the cathode of diode D2 and the emitter of triode V1, the plus earth of diode D2, and three
The collector of pole pipe V1 be connected with the anode of capacitance C2, one end of resistance R1, the emitter of triode V2, capacitance C1 anode and
The anode of input terminal V0, the base stage of triode V1 are connected with the collector of triode V2, and the base stage of triode V2 is connected with electricity
One end of R3 is hindered, the other end of resistance R3 is connected with the collector of triode V3, and the base stage of triode V3 is connected with resistance R4
One end and diode D1 cathode, the other end of resistance R4 is connected with the pin 3 of chip IC 1, the emitter of triode V3
Ground connection, the anode of diode D1 are connected with the cathode of resistance R2 and capacitance C2, and the other end of resistance R2 is connected with resistance R1,
And the other end ground connection of resistance R2, the cathode of capacitance C1 are connected with cathode and the ground connection of output terminal V0.
Preferably, the input terminal V0 is connected with 30 volts of power supplys, and the output voltage of output terminal V1 is 12 volts.
Preferably, the resistance value of the resistance R1, resistance R2, resistance R3, resistance R4, resistance R5 and resistance R6 are followed successively by 4.7K
Ω, 150K Ω, 470K Ω, 4.7K Ω, 0.56K Ω, 2.2K Ω, the Standard resistance range of swept resistance RP is 0 Ω to 4.7K Ω.
Preferably, the capacitance of the capacitance C1, capacitance C2, capacitance C3 and capacitance C4 are followed successively by 1000 μ F, 0.01 μ F, 0.01
μF、1000pF。
Preferably, the model of the triode V1, triode V2 and triode V3 are followed successively by 3DD15,9012 and 9013.
Preferably, the model KA555 of the chip IC 1, pin 2, pin 3 and the pin 6 of the chip IC 1 are followed successively by
Input, output end and reset terminal.
Compared with prior art, the beneficial effects of the utility model are：
In the utility model, level switch is served as by chip IC 1, the pin 5 of chip IC 1 connect diode D2 obtain+
6V reference voltages, the pin 2 of chip IC 1 obtain sampled voltage from the midpoint of swept resistance RP, when 2 voltage of pin of chip IC 1
During less than+3V, the pin 3 of chip IC 1 then exports high level, makes triode V3 saturation conductions, so as to make triode V1, three
The switching tube saturation conduction of pole pipe V2 compositions, powers to the load and the energy storage in inductance L and capacitance C4, meanwhile, power supply is through resistance
R6 charges to capacitance C3, improves the 6th of chip IC 1 the, current potential of 7 feet, reaches+9V in about 24US, at this moment, if chip IC 1 is drawn
Foot 2 reaches more than+3V, and the pin 3 of chip IC 1 then exports low level, triode V3 and triode V1, triode V2 cut-off, bears
It carries and maintains power supply by inductance L and capacitance C4, if the pin 2 of chip IC 1 is still below+3V, the pin 3 of chip IC 1 is still high electricity
Flat, triode V3 and triode V1, the lasting saturation conduction of triode V2, until output voltage reaches stationary value, this practicality is new
Type can not only ensure the stability of output voltage, protect the safety of terminal device, and can increase substantially the effect of power supply
Rate.
Description of the drawings
Fig. 1 be the utility model proposes a kind of power supply adaptor export integrated regulator circuit diagram.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.
With reference to Fig. 1, a kind of power supply adaptor exports integrated regulator, including chip IC 1, the pin 1 of the chip IC 1
Ground connection, the pin 2 of chip IC 1 are connected with the slip terminal of slide rheostat RP, the fixing terminal connection of swept resistance RP
There are the anode of capacitance C4 and the anode of output terminal V1, the cathode of capacitance C4 is connected with the cathode of output terminal V1, and output terminal V1's is negative
Pole is grounded, and another fixing terminal ground connection of swept resistance RP, the pin 7 of chip IC 1 is connected with the pin 6 of chip IC 1, and
One end of resistance R6 and the anode of capacitance C3 are connected with, the cathode ground connection of capacitance C3, the other end of resistance R6 is with output terminal V1's
Anode connects；
The pin 4 of chip IC 1 is connected with the pin 8 of chip IC 1, and is connected with the anode of output terminal V1, resistance R5
One end, one end of inductance L, the other end of resistance R5 is connected with the pin 5 of chip IC 1, and the pin 5 of chip IC 1 is grounded, electricity
The other end of sense L is connected with the cathode of diode D2 and the emitter of triode V1, the plus earth of diode D2, triode V1
Collector be connected with the anode and input terminal of the anode of capacitance C2, one end of resistance R1, the emitter of triode V2, capacitance C1
The anode of V0, the base stage of triode V1 are connected with the collector of triode V2, and the base stage of triode V2 is connected with resistance R3's
One end, the other end of resistance R3 are connected with the collector of triode V3, the base stage of triode V3 be connected with resistance R4 one end and
The cathode of diode D1, the other end of resistance R4 are connected with the pin 3 of chip IC 1, the emitter ground connection of triode V3, two poles
The anode of pipe D1 is connected with the cathode of resistance R2 and capacitance C2, and the other end of resistance R2 is connected with resistance R1, and resistance R2
The other end is grounded, and the cathode of capacitance C1 is connected with cathode and the ground connection of output terminal V0, level switch is served as by chip IC 1,
The pin 5 of chip IC 1 connects diode D2 acquisition+6V reference voltages, and the pin 2 of chip IC 1 is obtained from the midpoint of swept resistance RP
Sampled voltage, when 2 voltage of pin of chip IC 1 is less than+3V, the pin 3 of chip IC 1 then exports high level, makes triode
V3 saturation conductions, so as to the switching tube saturation conduction for forming triode V1, triode V2, power to the load and in inductance L and
Energy storage in capacitance C4, meanwhile, power supply charges through resistance R6 to capacitance C3, improves the 6th of chip IC 1 the, current potential of 7 feet, about 24US
Inside reach+9V, at this moment, if the pin 2 of chip IC 1 reaches more than+3V, the pin 3 of chip IC 1 exports low level, triode
V3 and triode V1, triode V2 end, and load maintains power supply by inductance L and capacitance C4, if the pin 2 of chip IC 1 is still below
+ 3V, then the pin 3 of chip IC 1 is still high level, triode V3 and triode V1, the lasting saturation conduction of triode V2, directly
Reach stationary value to output voltage, the utility model can not only ensure the stability of output voltage, protect the peace of terminal device
Entirely, and the efficiency of power supply can be increased substantially.
In the utility model, input terminal V0 is connected with 30 volts of power supplys, and the output voltage of output terminal V1 is 12 volts, resistance R1,
Resistance R2, resistance R3, resistance R4, resistance R5 and resistance R6 resistance value be followed successively by 4.7K Ω, 150K Ω, 470K Ω, 4.7K Ω,
0.56K Ω, 2.2K Ω, the Standard resistance range of swept resistance RP are 0 Ω to 4.7K Ω, capacitance C1, capacitance C2, capacitance C3 and capacitance
The capacitance of C4 is followed successively by 1000 μ F, 0.01 μ F, 0.01 μ F, 1000pF, the model of triode V1, triode V2 and triode V3 according to
It is secondary for 3DD15,9012 and 9013, the model KA555 of chip IC 1, pin 2, pin 3 and the pin 6 of chip IC 1 are followed successively by defeated
Enter end, output terminal and reset terminal, level switch served as by chip IC 1, the pin 5 of chip IC 1 connect diode D2 obtain+
6V reference voltages, the pin 2 of chip IC 1 obtain sampled voltage from the midpoint of swept resistance RP, when 2 voltage of pin of chip IC 1
During less than+3V, the pin 3 of chip IC 1 then exports high level, makes triode V3 saturation conductions, so as to make triode V1, three poles
The switching tube saturation conduction of pipe V2 compositions, powers to the load and the energy storage in inductance L and capacitance C4, meanwhile, power supply is through resistance R6
It charges to capacitance C3, improves the 6th of chip IC 1 the, current potential of 7 feet, reach+9V in about 24US, at this moment, if the pin of chip IC 1
2 reach more than+3V, and the pin 3 of chip IC 1 then exports low level, triode V3 and triode V1, triode V2 cut-off, load
Power supply is maintained by inductance L and capacitance C4, if the pin 2 of chip IC 1 is still below+3V, the pin 3 of chip IC 1 is still high level,
The lasting saturation conduction of triode V3 and triode V1, triode V2, until output voltage reaches stationary value, the utility model is not
It can only ensure the stability of output voltage, protect the safety of terminal device, and the efficiency of power supply can be increased substantially.
Operation principle：The direct current that power supply adaptor exports in practical applications, need to be only electrically accessed input by the utility model
After V0, input terminal V0 is held to access direct current, level switch is served as by chip IC 1, meeting diode D2 in the pin 5 of chip IC 1 obtains
+ 6V reference voltages are obtained, the pin 2 of chip IC 1 obtains sampled voltage from the midpoint of swept resistance RP, when the pin 2 of chip IC 1
When voltage is less than+3V, the pin 3 of chip IC 1 then exports high level, makes triode V3 saturation conductions, so as to make triode
The switching tube saturation conduction of V1, triode V2 composition, powers to the load and the energy storage in inductance L and capacitance C4, meanwhile, power supply warp
Resistance R6 charges to capacitance C3, improves the 6th of chip IC 1 the, current potential of 7 feet, reaches+9V in about 24US, at this moment, if chip IC 1
Pin 2 reach more than+3V, the pin 3 of chip IC 1 then exports low level, and triode V3 and triode V1, triode V2 are cut
Only, load maintains power supply by inductance L and capacitance C4, if the pin 2 of chip IC 1 is still below+3V, the pin 3 of chip IC 1 is still
The lasting saturation conduction of high level, triode V3 and triode V1, triode V2 until output voltage reaches stationary value, ensure
The stability of output voltage, so as to improving the efficiency of power supply.
The preferable specific embodiment of the above, only the utility model, but the scope of protection of the utility model is not
This is confined to, in the technical scope that any one skilled in the art discloses in the utility model, according to this practicality
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. a kind of power supply adaptor exports integrated regulator, including chip IC 1, which is characterized in that the pin of the chip IC 1
1 ground connection, the pin 2 of chip IC 1 are connected with the slip terminal of slide rheostat RP, the fixing terminal connection of swept resistance RP
There are the anode of capacitance C4 and the anode of output terminal V1, the cathode of capacitance C4 is connected with the cathode of output terminal V1, and output terminal V1's is negative
Pole is grounded, and another fixing terminal ground connection of swept resistance RP, the pin 7 of chip IC 1 is connected with the pin 6 of chip IC 1, and
One end of resistance R6 and the anode of capacitance C3 are connected with, the cathode ground connection of capacitance C3, the other end of resistance R6 is with output terminal V1's
Anode connects；
The pin 4 of the chip IC 1 is connected with the pin 8 of chip IC 1, and is connected with the anode of output terminal V1, resistance R5
One end, one end of inductance L, the other end of resistance R5 is connected with the pin 5 of chip IC 1, and the pin 5 of chip IC 1 is grounded, electricity
The other end of sense L is connected with the cathode of diode D2 and the emitter of triode V1, the plus earth of diode D2, triode V1
Collector be connected with the anode and input terminal of the anode of capacitance C2, one end of resistance R1, the emitter of triode V2, capacitance C1
The anode of V0, the base stage of triode V1 are connected with the collector of triode V2, and the base stage of triode V2 is connected with resistance R3's
One end, the other end of resistance R3 are connected with the collector of triode V3, the base stage of triode V3 be connected with resistance R4 one end and
The cathode of diode D1, the other end of resistance R4 are connected with the pin 3 of chip IC 1, the emitter ground connection of triode V3, two poles
The anode of pipe D1 is connected with the cathode of resistance R2 and capacitance C2, and the other end of resistance R2 is connected with resistance R1, and resistance R2
The other end is grounded, and the cathode of capacitance C1 is connected with cathode and the ground connection of output terminal V0.
A kind of 2. power supply adaptor output integrated regulator according to claim 1, which is characterized in that the input terminal
V0 is connected with 30 volts of power supplys, and the output voltage of output terminal V1 is 12 volts.
A kind of 3. power supply adaptor output integrated regulator according to claim 1, which is characterized in that the resistance
R1, resistance R2, resistance R3, resistance R4, resistance R5 and resistance R6 resistance value be followed successively by 4.7K Ω, 150K Ω, 470K Ω, 4.7K
Ω, 0.56K Ω, 2.2K Ω, the Standard resistance range of swept resistance RP is 0 Ω to 4.7K Ω.
A kind of 4. power supply adaptor output integrated regulator according to claim 1, which is characterized in that the capacitance
C1, capacitance C2, capacitance C3 and capacitance C4 capacitance be followed successively by 1000 μ F, 0.01 μ F, 0.01 μ F, 1000pF.
A kind of 5. power supply adaptor output integrated regulator according to claim 1, which is characterized in that the triode
The model of V1, triode V2 and triode V3 are followed successively by 3DD15,9012 and 9013.
A kind of 6. power supply adaptor output integrated regulator according to claim 1, which is characterized in that the chip
The model KA555 of IC1, pin 2, pin 3 and the pin 6 of the chip IC 1 are followed successively by input, output end and reset terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721701379.4U CN207518477U (en) | 2017-12-08 | 2017-12-08 | A kind of power supply adaptor exports integrated regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721701379.4U CN207518477U (en) | 2017-12-08 | 2017-12-08 | A kind of power supply adaptor exports integrated regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207518477U true CN207518477U (en) | 2018-06-19 |
Family
ID=62543553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721701379.4U Expired - Fee Related CN207518477U (en) | 2017-12-08 | 2017-12-08 | A kind of power supply adaptor exports integrated regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207518477U (en) |
-
2017
- 2017-12-08 CN CN201721701379.4U patent/CN207518477U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180619 Termination date: 20181208 |
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| CF01 | Termination of patent right due to non-payment of annual fee |