CN207518489U - A kind of multipurpose automated intelligent power supply adaptor - Google Patents
A kind of multipurpose automated intelligent power supply adaptor Download PDFInfo
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- CN207518489U CN207518489U CN201721757759.XU CN201721757759U CN207518489U CN 207518489 U CN207518489 U CN 207518489U CN 201721757759 U CN201721757759 U CN 201721757759U CN 207518489 U CN207518489 U CN 207518489U
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Abstract
The utility model discloses a kind of multipurpose automated intelligent power supply adaptors, including amplifier IC1, the pin 1 of the amplifier IC1 is connected with one end of resistance R3, the other end of resistance R3 is connected with one end of transformer T secondary coils, one end of resistance R4, one end of capacitance C2 and the anode of output terminal U1, the other end of capacitance C2 is connected with the other end of transformer T secondary coils and the cathode of output terminal U1, the pin 2 of amplifier IC1 is connected with one end of resistance R5 and the pin 4 of comparator IC2, the other end of resistance R5 is connected with the pin 5 of amplifier IC1, and it is connected with one end of inductor L, the other end of inductor L is connected with the pin 4 of amplifier IC1, and the other end ground connection of inductor L.The utility model can not only adapt to a variety of mobile terminals, quick to identify that various terminals input current charges for it, not only versatile, and with preferable overcurrent protection function.
Description
Technical field
The utility model is related to power supply adaptor technical field more particularly to a kind of multipurpose automated intelligent power adaptations
Device.
Background technology
Power supply adaptor is the power supply conversion equipment of small portable electronic device and electronic apparatus, generally by outer
The components compositions such as shell, transformer, inductor, capacitance, control IC, pcb board, its operation principle are converted to straight by exchange input
Stream output, can be divided into Direct Plug-In and Table top type by connection mode, be matched in security protection camera, set-top box, router, lamp extensively
In the equipment such as item, massage device.
The common power supply adaptor majority of people is all one-to-one use at present, i.e., a kind of power supply adaptor is merely able to be applicable in
In a kind of terminal device, it is impossible to adapt to a variety of mobile terminals, None- identified various terminals input current charges for it, do not have
Versatility.
Utility model content
The purpose of this utility model is to solve shortcoming in the prior art, and a kind of multipurpose proposed is automatic
Intelligent power adapter.
To achieve these goals, the utility model employs following technical solution：
A kind of multipurpose automated intelligent power supply adaptor, including amplifier IC1, the pin 1 of the amplifier IC1 is connected with
One end of resistance R3, the other end of resistance R3 are connected with one end of transformer T secondary coils, one end of resistance R4, capacitance C2
One end and the anode of output terminal U1, the other end of capacitance C2 are connected with the other end of transformer T secondary coils and output terminal U1
Cathode, the pin 2 of amplifier IC1 are connected with one end of resistance R5 and the pin 4 of comparator IC2, and the other end of resistance R5 is with putting
The pin 5 of big device IC1 is connected, and be connected with one end of inductor L, the other end of inductor L and the pin 4 of amplifier IC1
It is connected, and the other end ground connection of inductor L, the pin 3 of amplifier IC1 are grounded, the pin 1 of comparator IC2 is connected with resistance
One end of the other end of R4, one end of resistance R6 and resistance R7, the other end of resistance R6 are connected with the pin 5 of comparator IC2,
The other end of resistance R7 is connected with the pin 2 of comparator IC2, and the pin 3 of comparator IC2 is grounded；
One end of the transformer T primary coils is connected with one end of capacitance C1 and one end of resistance R1, and capacitance C1's is another
One end is connected with one end of the anode of diode D4, the anode of diode D2 and resistance R2, and the other end ground connection of capacitance C1, electricity
The other end of resistance R2 is connected with the base stage of triode V, the emitter ground connection of triode V, collector and the transformer T of triode V
The other end connection of primary coil, the other end of resistance R1 are connected with the cathode of diode D3 and the cathode of diode D1, two poles
The anode of pipe D3 is connect with the cathode of diode D4, and is respectively connected with the cathode of same input terminal U0, the anode of diode D1
It is connect with the cathode of diode D2, and is respectively connected with the anode of same input terminal U0.
Preferably, the model LM358's of the amplifier IC1, amplifier IC1 bears voltage range as 3 to 30 volts, than
Model LM393's compared with device IC2, comparator IC2 bears voltage range as 2 to 36 volts.
Preferably, the anode input voltage of the input terminal U0 is AC 220 V, and the anode output voltage of output terminal U1 is
5 volts.
Preferably, the resistance value of the resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6 and resistance R7 according to
Secondary is 1K Ω, 1K Ω, 1.5K Ω, 1.5K Ω, 1.2K Ω, 1.2K Ω, 1.2K Ω.
Preferably, the capacitance of the capacitance C1 and capacitance C2 is 220uF.
Preferably, the model of the diode D1, diode D2, diode D3 and diode D4 are 1N4001, three poles
The model 1N5551 of pipe V.
Compared with prior art, the beneficial effects of the utility model are：
In the utility model, rectified current is combined by diode D1, diode D2, diode D3 and diode D4 matching
Road so as to which 220 volts of AC conversions to input terminal U0 inputs are direct current, is made up of resistance R1, capacitance C1 and triode V
Anti-surge protection circuit can effectively prevent capacitance C1 from forming larger surge current, so as to avoid rectifier bridge and switch
Contact is damaged, and current sample electricity is formed by amplifier IC1, comparator IC2, inductor L, resistance R5, resistance R6 and resistance R7
Road can not only identify output end current size, and with overcurrent protection, the utility model can not only adapt to a variety of
Mobile terminal, it is quick to identify that various terminals input current charges for it, it is not only versatile, and with preferable overcurrent protection work(
Energy.
Description of the drawings
Fig. 1 be the utility model proposes a kind of multipurpose automated intelligent power supply adaptor 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 multipurpose automated intelligent power supply adaptor, including amplifier IC1, the pin 1 of amplifier IC1 connects
One end of resistance R3 is connected to, the other end of resistance R3 is connected with one end of transformer T secondary coils, one end of resistance R4, capacitance
One end of C2 and the anode of output terminal U1, the other end of capacitance C2 are connected with the other end and output terminal of transformer T secondary coils
The cathode of U1, the pin 2 of amplifier IC1 are connected with one end of resistance R5 and the pin 4 of comparator IC2, the other end of resistance R5
It is connected with the pin 5 of amplifier IC1, and is connected with one end of inductor L, the other end of inductor L and drawing for amplifier IC1
Foot 4 is connected, and the other end ground connection of inductor L, the pin 3 of amplifier IC1 are grounded, and the pin 1 of comparator IC2 is connected with electricity
The other end, one end of resistance R6 and one end of resistance R7 of R4 is hindered, the other end of resistance R6 is connected with the pin 5 of comparator IC2
It connects, the other end of resistance R7 is connected with the pin 2 of comparator IC2, and the pin 3 of comparator IC2 is grounded；Transformer T primary lines
One end of circle is connected with one end of capacitance C1 and one end of resistance R1, the other end of capacitance C1 be connected with the anode of diode D4,
The anode of diode D2 and one end of resistance R2, and the other end ground connection of capacitance C1, the other end of resistance R2 are connected with triode V
Base stage, the emitter ground connection of triode V, the collector of triode V connect with the other end of transformer T primary coils, resistance
The other end of R1 is connected with the cathode of diode D3 and the cathode of diode D1, the anode of diode D3 and the cathode of diode D4
Connection, and the cathode of same input terminal U0 is respectively connected with, the anode of diode D1 is connect, and connect with the cathode of diode D2
The anode of same input terminal U0 is connected to, is combined by diode D1, diode D2, diode D3 and diode D4 matching whole
Current circuit so as to which 220 volts of AC conversions to input terminal U0 inputs are direct current, passes through resistance R1, capacitance C1 and triode V
Anti-surge protection circuit is formed, can effectively prevent capacitance C1 from forming larger surge current, so as to avoid rectifier bridge and open
The contact damage of pass forms electric current by amplifier IC1, comparator IC2, inductor L, resistance R5, resistance R6 and resistance R7 and adopts
Sample circuit can not only identify output end current size, and have overcurrent protection, and the utility model can not only adapt to
A variety of mobile terminals, it is quick to identify that various terminals input current charges for it, it is not only versatile, and protected with preferable overcurrent
Protective function.
In the utility model, the model LM358's of amplifier IC1, amplifier IC1 bears voltage range as 3 to 30 volts,
The model LM393's of comparator IC2, comparator IC2 bears voltage range as 2 to 36 volts, the anode input electricity of input terminal U0
Press as AC 220 V, the anode output voltage of output terminal U1 is 5 volts, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5,
The resistance value of resistance R6 and resistance R7 are followed successively by 1K Ω, 1K Ω, 1.5K Ω, 1.5K Ω, 1.2K Ω, 1.2K Ω, 1.2K Ω, capacitance C1
Capacitance with capacitance C2 is 220uF, diode D1, diode D2, diode D3 and diode D4 model be 1N4001,
The model 1N5551 of triode V is combined into rectification by diode D1, diode D2, diode D3 and diode D4 matching
Circuit so as to which 220 volts of AC conversions to input terminal U0 inputs are direct current, passes through resistance R1, capacitance C1 and triode V groups
Into anti-surge protection circuit, it can effectively prevent capacitance C1 from forming larger surge current, so as to avoid rectifier bridge and switch
Contact damage, pass through amplifier IC1, comparator IC2, inductor L, resistance R5, resistance R6 and resistance R7 form current sample
Circuit can not only identify output end current size, and with overcurrent protection, the utility model can not only adapt to more
Kind mobile terminal, it is quick to identify that various terminals input current charges for it, it is not only versatile, and with preferable overcurrent protection
Function.
Operation principle：In the utility model, matched by diode D1, diode D2, diode D3 and diode D4
Rectification circuit is formed, i.e., adds forward voltage, diode D1, diode D3 conducting, to diode to diode D1, diode D3
D2, diode D4 add backward voltage, diode D2, diode D4 cut-off, add forward voltage to diode D2, diode D4, and two
Pole pipe D2, diode D4 are connected, and backward voltage is added to diode D1, diode D3, and diode D1, diode D3 end, so as to
Full-wave rectified voltage is obtained, anti-surge protection circuit is formed by resistance R1, capacitance C1 and triode V, i.e., by R1 pairs of resistance
Capacitor C1 charges, limit inrush currents, when capacitor C1 is charged to about 80% rated voltage, through transformer T auxiliary windings
Generate the trigger signal of triode V, triode V be connected, so as to make resistance R1 short-circuit, by amplifier IC1, comparator IC2,
Inductor L, resistance R5, resistance R6 and resistance R7 composition current sampling circuits, can not only identify output end current size, and
With overcurrent protection, i.e. the output signal of inductor L calculates electricity after transformation, according to the no-load voltage ratio coefficient of inductor L
The virtual value of stream triggers external interrupt if the overcurrent limit is reached, and is handled by interrupt routine and judges whether to reach overcurrent value simultaneously
Perform overcurrent protection action.
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 multipurpose automated intelligent power supply adaptor, including amplifier IC1, which is characterized in that the amplifier IC1's draws
Foot 1 is connected with one end of resistance R3, the other end of resistance R3 be connected with one end of transformer T secondary coils, resistance R4 one end,
One end of capacitance C2 and the anode of output terminal U1, the other end of capacitance C2 are connected with the other end of transformer T secondary coils and defeated
The cathode of outlet U1, the pin 2 of amplifier IC1 are connected with one end of resistance R5 and the pin 4 of comparator IC2, and resistance R5's is another
One end is connected with the pin 5 of amplifier IC1, and is connected with one end of inductor L, the other end and the amplifier IC1 of inductor L
Pin 4 be connected, and the other end ground connection of inductor L, the pin 3 of amplifier IC1 is grounded, and the pin 1 of comparator IC2 connects
There are one end of the other end of resistance R4, one end of resistance R6 and resistance R7, the other end of resistance R6 and the pin 5 of comparator IC2
It is connected, the other end of resistance R7 is connected with the pin 2 of comparator IC2, and the pin 3 of comparator IC2 is grounded；
One end of the transformer T primary coils is connected with one end of capacitance C1 and one end of resistance R1, the other end of capacitance C1
It is connected with one end of the anode of diode D4, the anode of diode D2 and resistance R2, and the other end ground connection of capacitance C1, resistance R2
The other end be connected with the base stage of triode V, the emitter ground connection of triode V, the collector and transformer T of triode V be primary
The other end connection of coil, the other end of resistance R1 are connected with the cathode of diode D3 and the cathode of diode D1, diode D3
Anode connect with the cathode of diode D4, and be respectively connected with the cathode of same input terminal U0, the anode of diode D1 and two
The cathode connection of pole pipe D2, and it is respectively connected with the anode of same input terminal U0.
A kind of 2. multipurpose automated intelligent power supply adaptor according to claim 1, which is characterized in that the amplifier
The model LM358's of IC1, amplifier IC1 bears voltage range as 3 to 30 volts, and the model LM393 of comparator IC2 compares
Device IC2's bears voltage range as 2 to 36 volts.
A kind of 3. multipurpose automated intelligent power supply adaptor according to claim 1, which is characterized in that the input terminal U0
Anode input voltage for AC 220 V, the anode output voltage of output terminal U1 is 5 volts.
4. a kind of multipurpose automated intelligent power supply adaptor according to claim 1, which is characterized in that the resistance R1,
Resistance R2, resistance R3, resistance R4, resistance R5, resistance R6 and resistance R7 resistance value be followed successively by 1K Ω, 1K Ω, 1.5K Ω, 1.5K
Ω、1.2KΩ、1.2KΩ、1.2KΩ。
5. a kind of multipurpose automated intelligent power supply adaptor according to claim 1, which is characterized in that the capacitance C1 and
The capacitance of capacitance C2 is 220uF.
A kind of 6. multipurpose automated intelligent power supply adaptor according to claim 1, which is characterized in that the diode
D1, diode D2, diode D3 and diode D4 model be 1N4001, the model 1N5551 of triode V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721757759.XU CN207518489U (en) | 2017-12-15 | 2017-12-15 | A kind of multipurpose automated intelligent power supply adaptor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721757759.XU CN207518489U (en) | 2017-12-15 | 2017-12-15 | A kind of multipurpose automated intelligent power supply adaptor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207518489U true CN207518489U (en) | 2018-06-19 |
Family
ID=62544176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721757759.XU Expired - Fee Related CN207518489U (en) | 2017-12-15 | 2017-12-15 | A kind of multipurpose automated intelligent power supply adaptor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207518489U (en) |
-
2017
- 2017-12-15 CN CN201721757759.XU patent/CN207518489U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180619 Termination date: 20181215 |