CN205945169U - Intelligence voltage transformation charger - Google Patents

Intelligence voltage transformation charger Download PDF

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Publication number
CN205945169U
CN205945169U CN201620941072.0U CN201620941072U CN205945169U CN 205945169 U CN205945169 U CN 205945169U CN 201620941072 U CN201620941072 U CN 201620941072U CN 205945169 U CN205945169 U CN 205945169U
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China
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circuit
voltage
chip
output
energy storage
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CN201620941072.0U
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Chinese (zh)
Inventor
徐建华
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Shenzhen Lvsun Electronics Technology Co Ltd
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Shenzhen Lvsun Electronics Technology Co Ltd
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Abstract

The utility model discloses an intelligence voltage transformation charger, its innovation point lies in: including the filter circuit who connects, transformer energy storage and switch circuit, secondary rectification filter circuit and a plurality of output circuit, filter circuit, the transformer energy storage is established ties with switch circuit and secondary rectification filter circuit in proper order, and a plurality of output circuit are connected with secondary rectification filter circuit's output one by one, does output circuit include DC DC reduction voltage circuit and intelligent recognition circuit, the rechargeable devices current signal is received to the intelligent recognition circuit, and control DC DC reduction voltage circuit output voltage. The beneficial effects of the utility model are that: multiple port sets up, charges in the time of convenient different equipment, can DC be adjusted through detecting device for insertion electric current information to the intelligent recognition circuit that sets up simultaneously the voltage of DC reduction voltage circuit output, messenger's equipment reaches the high voltage, low -loss, the purpose of quick charge.

Description

A kind of intelligent variable-voltage charger
Technical field
This utility model is related to charger field and in particular to a kind of intelligent variable-voltage charger.
Background technology
With scientific and technological development, due to mobile phone, digital camera, electronic reader, MP3, MP4, net book, notebook computer Get more and more Deng consumption electronic product, the application of quick charger is also more and more extensive.At present, traditional charge prepd USB end General only 1 to 2 of mouth, can not meet one family and some public place charge requirement such as office.For this problem, Exploitation has multichannel 5V1A USB port or the quick charger of 5 road 5V2A USB output.But, this kind of quick charger does not possess Intelligent Recognition quickly fills function (intelligent conversion 5V/9V/12V/15V/20V voltage).With the continuous improvement of user's request, need Design multiport and possess the quick charger that Intelligent Recognition quickly fills function.This is the direction that the applicant is devoted to studying.
Utility model content
The purpose of this utility model provides a kind of intelligent variable-voltage charger, solve one of above-mentioned prior art problem or Person is multiple.
For solve above-mentioned technical problem, this utility model adopt the following technical scheme that for:A kind of intelligent variable-voltage charger, its Innovative point is:If including connect the filter circuit of power supply, transformator energy storage and on-off circuit, secondary current rectifying and wave filtering circuit and Dry output circuit, filter circuit, transformator energy storage and on-off circuit and secondary current rectifying and wave filtering circuit are sequentially connected in series, and some output Circuit is connected one by one with the outfan of secondary current rectifying and wave filtering circuit, and output circuit includes DC-DC reduction voltage circuit and Intelligent Recognition electricity Road, intelligent identifying circuit receives charging equipment current signal, and controls DC-DC reduction voltage circuit output voltage;
DC-DC reduction voltage circuit includes the first chip (1U1), the first inductance (1L1), the second diode (1D1), the 3rd electrolysis Electric capacity (E3) and USB outfan;Intelligent identifying circuit includes the second chip (1U2), and the second chip (1U2) connects USB outfan, Second chip (1U2) connects the first chip (1U1);
Intelligent variable-voltage charger also includes photoelectric coupling control loop, PWM controller, and photoelectric coupling control loop obtains two The current signal of secondary current rectifying and wave filtering circuit output, feeds back to PWM controller, and PWM controller controls transformator energy storage and switch electricity The size of current of road output.
In some embodiments, filter circuit includes the first filter coil (LF1), the second filter coil (LF2), bridge-type Commutator (BD1), the first electric capacity (CY2) and the second electric capacity (CY3), the first electric capacity (CY2) and the second electric capacity (CY3) connect respectively Between the first filter coil (LF1) and the second filter coil (LF2), and it is grounded.
In some embodiments, transformator energy storage and on-off circuit include transformator (T1) and the first audion (Q1).
In some embodiments, secondary current rectifying and wave filtering circuit includes the first diode (D4), the first electrochemical capacitor (E6) With the second electrochemical capacitor (E7).
In some embodiments, PWM controller (3) includes the 3rd chip (U1), fourth chip (U2B), the two or three pole Pipe (Q2), the first Zener diode (Z2) and the 3rd diode (D2).
In some embodiments, photoelectric coupling control loop (5) includes fifth chip (U2A), the 3rd audion (U3) With the second Zener diode (Z4).
The beneficial effects of the utility model are:The setting of multiple ports, facilitates and charges while distinct device, arrange simultaneously Intelligent identifying circuit, can be by detection insertion device current information, and the voltage of adjustment DC-DC reduction voltage circuit output makes equipment reach To high voltage, low-loss, the purpose of quick charge.
Brief description
Fig. 1 is the structure chart of the USB port quick charger of this utility model intelligence variable-voltage charger.
Fig. 2 is a part of circuit diagram of the USB port quick charger of this utility model intelligence variable-voltage charger.
Fig. 3 is another part circuit diagram of the USB port quick charger of this utility model intelligence variable-voltage charger.
Specific embodiment
With reference to Figure of description, this utility model is described in more detail.
A kind of intelligent variable-voltage charger as shown in Figure 1 to Figure 3, including the filter circuit 1, the transformator energy storage that connect power supply With on-off circuit 2, secondary current rectifying and wave filtering circuit 4 and some output circuits 6, filter circuit 1, transformator energy storage and on-off circuit 2 and secondary current rectifying and wave filtering circuit 4 be sequentially connected in series, and some output circuits 6 are connected one by one with the outfan of secondary current rectifying and wave filtering circuit 4 Connect, output circuit 6 includes DC-DC reduction voltage circuit and intelligent identifying circuit, intelligent identifying circuit receives charging equipment electric current letter Number, and control DC-DC reduction voltage circuit output voltage;DC-DC reduction voltage circuit include the first chip (1U1), the first inductance (1L1), Second diode (1D1), the 3rd electrochemical capacitor (E3) and USB outfan;Intelligent identifying circuit includes the second chip (1U2), the Two chips (1U2) connect USB outfan, and the second chip (1U2) connects the first chip (1U1);Intelligent variable-voltage charger also includes Photoelectric coupling control loop 5, PWM controller 3, photoelectric coupling control loop 5 obtains the electric current of secondary current rectifying and wave filtering circuit 4 output Signal, feeds back to PWM controller 3, and PWM controller 3 controls the size of current of transformator energy storage and on-off circuit 2 output.
Switching power circuit:Based on NXP TEA18362T flyback scheme (U1), conversion efficiency is up to 91%, and volume ratio passes System scheme is little by 30%.U1 controls Q1 Push And Release, converts electrical energy into Magnetic Energy Storage in T1 transformator, and secondary passes through synchronous rectification Pulsating volage rectification, electrochemical capacitor E6, E7 are filtered into unidirectional current by metal-oxide-semiconductor Q3.
DC-DC blood pressure lowering:It is up to 93% using SY8205 (1U1) conversion efficiency.1U1,1L, 1D1,1E2 and peripheral element group Become DC-DC reduction voltage circuit.
Automatic identification equipment type IC:F75292 (1U2) charging intelligent controller is opened up using Taiwan essence.
USB port D+ is connected with 8 feet with the 7 of 1U2 with D-, and when the device is plugged, equipment communicates through D+, D- and 1U2, 3 feet of 1U2 can export the signal of 1 pulse, controls the voltage-to-ground of 1U1FB 5 foot, the magnitude of voltage 5V/ of adjustment DC-DC output 9V/12V/15V/20V, makes equipment reach high voltage, low-loss, the purpose of quick charge.
Filter circuit (1) include the first filter coil (LF1), the second filter coil (LF2), bridge rectifier (BD1), the One electric capacity (CY2) and the second electric capacity (CY3), described first electric capacity (CY2) and the second electric capacity (CY3) are connected to the first filtering Between coil (LF1) and the second filter coil (LF2), and it is grounded.
Transformator energy storage includes transformator (T1) and the first audion (Q1) with on-off circuit (2);Secondary rectifying and wave-filtering electricity Road (4) includes the first diode (D4), the first electrochemical capacitor (E6) and the second electrochemical capacitor (E7);PWM controller (3) includes the Three chips (U1), fourth chip (U2B), the second audion (Q2), the first Zener diode (Z2) and the 3rd diode (D2);Light Electric coupling control loop (5) includes fifth chip (U2A), the 3rd audion (U3) and the second Zener diode (Z4).
The above is only optimal way of the present utility model it is noted that to those skilled in the art, On the premise of creating design without departing from this utility model, some similar deformation and improvement can also be made, these also should regard Within protection domain of the present utility model.

Claims (6)

1. a kind of intelligent variable-voltage charger it is characterised in that:Including connecting the filter circuit (1) of power supply, transformator energy storage and open Close circuit (2), secondary current rectifying and wave filtering circuit (4) and some output circuits (6), described filter circuit (1), transformator energy storage with On-off circuit (2) and secondary current rectifying and wave filtering circuit (4) are sequentially connected in series, and some output circuits (6) and secondary current rectifying and wave filtering circuit (4) outfan connects one by one, and described output circuit (6) includes DC-DC reduction voltage circuit and intelligent identifying circuit, and described intelligence is known Other circuit receives charging equipment current signal, and controls DC-DC reduction voltage circuit output voltage;
Described DC-DC reduction voltage circuit includes the first chip (1U1), the first inductance (1L1), the second diode (1D1), the 3rd electrolysis Electric capacity (E3) and USB outfan;Described intelligent identifying circuit includes the second chip (1U2), and described second chip (1U2) connects USB outfan, described second chip (1U2) connects the first chip (1U1);
Described intelligent variable-voltage charger also includes photoelectric coupling control loop (5), PWM controller (3), and described photoelectric coupling controls Loop (5) obtains the current signal that secondary current rectifying and wave filtering circuit (4) exports, and feeds back to PWM controller (3), PWM controller (3) Control the size of current that transformator energy storage and on-off circuit (2) export.
2. a kind of intelligent variable-voltage charger according to claim 1 it is characterised in that:Described filter circuit (1) includes the One filter coil (LF1), the second filter coil (LF2), bridge rectifier (BD1), the first electric capacity (CY2) and the second electric capacity (CY3), described first electric capacity (CY2) and the second electric capacity (CY3) are connected to the first filter coil (LF1) and the second wave filtering wire Between circle (LF2), and it is grounded.
3. a kind of intelligent variable-voltage charger according to claim 1 is it is characterised in that described transformator energy storage is electric with switch Road (2) includes transformator (T1) and the first audion (Q1).
4. a kind of intelligent variable-voltage charger according to claim 1 is it is characterised in that described secondary current rectifying and wave filtering circuit (4) the first diode (D4), the first electrochemical capacitor (E6) and the second electrochemical capacitor (E7) are included.
5. a kind of intelligent variable-voltage charger according to claim 2 is it is characterised in that described PWM controller (3) includes the Three chips (U1), fourth chip (U2B), the second audion (Q2), the first Zener diode (Z2) and the 3rd diode (D2).
6. a kind of intelligent variable-voltage charger according to claim 2 is it is characterised in that described photoelectric coupling control loop (5) fifth chip (U2A), the 3rd audion (U3) and the second Zener diode (Z4) are included.
CN201620941072.0U 2016-08-25 2016-08-25 Intelligence voltage transformation charger Active CN205945169U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620941072.0U CN205945169U (en) 2016-08-25 2016-08-25 Intelligence voltage transformation charger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620941072.0U CN205945169U (en) 2016-08-25 2016-08-25 Intelligence voltage transformation charger

Publications (1)

Publication Number Publication Date
CN205945169U true CN205945169U (en) 2017-02-08

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110707922A (en) * 2019-08-31 2020-01-17 苏州浪潮智能科技有限公司 Server switching power supply
CN110739753A (en) * 2019-12-06 2020-01-31 株洲大川电子技术有限公司 portable A port + C port PD65W quick charger
CN111016717A (en) * 2019-11-29 2020-04-17 深圳猛犸电动科技有限公司 Method and device for identifying simultaneous charging of multiple electric vehicles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110707922A (en) * 2019-08-31 2020-01-17 苏州浪潮智能科技有限公司 Server switching power supply
CN111016717A (en) * 2019-11-29 2020-04-17 深圳猛犸电动科技有限公司 Method and device for identifying simultaneous charging of multiple electric vehicles
CN111016717B (en) * 2019-11-29 2021-05-14 深圳猛犸电动科技有限公司 Method and device for identifying simultaneous charging of multiple electric vehicles
CN110739753A (en) * 2019-12-06 2020-01-31 株洲大川电子技术有限公司 portable A port + C port PD65W quick charger

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