CN106451662A - Ultra-thin charger and circuit thereof - Google Patents

Ultra-thin charger and circuit thereof Download PDF

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Publication number
CN106451662A
CN106451662A CN201611009627.9A CN201611009627A CN106451662A CN 106451662 A CN106451662 A CN 106451662A CN 201611009627 A CN201611009627 A CN 201611009627A CN 106451662 A CN106451662 A CN 106451662A
Authority
CN
China
Prior art keywords
ultra
circuit
thin
chip
resistance
Prior art date
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.)
Pending
Application number
CN201611009627.9A
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Chinese (zh)
Inventor
蔡文娟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XINJI (SHENZHEN) COMPUTER PARTS CO Ltd
Original Assignee
XINJI (SHENZHEN) COMPUTER PARTS CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by XINJI (SHENZHEN) COMPUTER PARTS CO Ltd filed Critical XINJI (SHENZHEN) COMPUTER PARTS CO Ltd
Priority to CN201611009627.9A priority Critical patent/CN106451662A/en
Publication of CN106451662A publication Critical patent/CN106451662A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/24Magnetic cores
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/2823Wires
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R35/00Flexible or turnable line connectors, i.e. the rotation angle being limited
    • H01R35/04Turnable line connectors with limited rotation angle with frictional contact members
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/04Regulation of charging current or voltage
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/04Regulation of charging current or voltage
    • H02J7/06Regulation of charging current or voltage using discharge tubes or semiconductor devices
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/2804Printed windings
    • H01F2027/2809Printed windings on stacked layers
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00045Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Abstract

The invention discloses an ultra-thin charger which comprises an upper insulating shell, a lower insulating shell, a circuit board, a contact plug and a metal elastic piece, wherein the metal elastic piece and the circuit board are connected and are both arranged inside the combination of the upper insulating shell and the lower insulating shell; the contact plug is rotationally connected with the lower insulating shell; when the contact plug is rotated, the contact plug is in elastic contact with the metal elastic piece and is communicated with the circuit board through the metal elastic piece; the circuit board comprises a USB connector and an ultra-thin high-frequency transformer; the thickness of the ultra-thin high-frequency transformer is not greater than that of the USB connector. By adopting the ultra-thin charger, the problems of use inconvenience and low charge efficiency can be solved.

Description

A kind of ultra-thin charger and its circuit
Technical field
The present invention relates to a kind of charger, more particularly, to a kind of ultra-thin charger and its circuit.
Background technology
Existing general charger mostly volume is big, in irregular shape, and contact plug is not rotatable, especially has on socket side When shelter, use cumbersome;And also have that in charging process, circuit sampling precision is low, cause charge efficiency low Problem.
Content of the invention
In order to overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of ultra-thin charger, it can solve to make Use inconvenience and the low problem of charge efficiency.
The purpose of the present invention employs the following technical solutions realization:
A kind of ultra-thin charger, including upper insulation crust, lower insulation crust, circuit board, contact plug and metal clips; Metal clips is connected with circuit board and all combines located at upper insulation crust and lower insulation crust internal;Contact plug is rotationally connected with Lower insulation crust, when contact plug rotates, contacts plug and metal clips Elastic Contact, by metal clips connection circuit plate, Described circuit board has USB connector, ultra-thin high frequency transformer, and the thickness of ultra-thin high frequency transformer is not more than USB connector Thickness.
Preferably, described ultra-thin high frequency transformer includes PIN, skeleton, iron core and winding;Described skeleton has hollow Heart axle;Described iron core divides including upper and lower iron core, the clamping plate that described upper and lower iron core includes iron mandrel and connects iron mandrel;Described Iron mandrel passes through hollow heart axle;Described winding includes multilayer magnetic conduction wire rod and multi-layer conductor leads wire rod, and described winding is wrapped in sky Core heart axle periphery.
Preferably, described winding is followed successively by magnetic conduction wire-coated, electric wire layer and magnetic conduction wire-coated by internal layer to outer layer.
A kind of ultra-thin charger circuit, including:Current rectifying and wave filtering circuit, for becoming smoothly straight by mains voltage commutation Stream power supply;Ultra-thin high frequency transformer, for isolation transmission electric current;IC control circuit, for controlling the first of ultra-thin high frequency transformer Level winding and the break-make of power supply;Charging output circuit, for exporting DC charging voltage;IC power supply circuits, for IC control IC in circuit powers;Described charging output circuit includes high-frequency synchronous rectifying output circuit and access device identification circuit;Institute State rectification filter circuit output end and connect ultra-thin high frequency transformer;Described IC control circuit connects described ultra-thin high frequency transformer; Described IC power supply circuits connect ultra-thin high frequency transformer and IC control circuit respectively;Described high-frequency synchronous rectifying output circuit connects Ultra-thin high frequency transformer;Described access device identification circuit connects high-frequency synchronous rectifying output circuit.
Preferably, described IC control circuit includes:Chip U2, resistance R11, resistance R10, resistance R18, fast diode D2 With metal-oxide-semiconductor Q2;Described metal-oxide-semiconductor drain electrode connects ultra-thin high frequency transformer, and source electrode connects resistance R18, and grid connects resistance R11;Institute State resistance R10 and fast diode D2 series connection again with resistance R11 and connect;Described resistance R11 connects chip U2;Described resistance R18 Ground connection.
Preferably, described IC power supply circuits include:Resistance R1 and commutation diode D3;Described resistance R12 one end and rectification Diode D3, ultra-thin high frequency transformer assists winding sequential concatenation;Described resistance R12 connects IC chip U2.
Preferably, described high-frequency synchronous rectifying output circuit includes IC chip U1, electric capacity C1, electric capacity C6, resistance R3 and electricity Hold C7;It is connected electric capacity C1, be linked in sequence between the second end and the 3rd end resistance between described IC chip U1 first end and the second end R3 and electric capacity C6;Described IC chip U1 second end connects ultra-thin high frequency transformer secondary windings;Described three-terminal link electric capacity C7; Described electric capacity C7 ground connection.
Preferably, described access device identification resistance includes IC chip U3, connector J1 and connector J2;Described IC chip U3 second end is connected and is grounded with the 4th end of described connector J1 and connector J2;Described IC chip U3 the 5th end and described company The first end connection meeting device J1 and connector J2 is connected to IC chip U1 the 3rd end;Described IC chip U3 first end and the 6th end are divided Lian Jie not connector J1 second end and the 3rd end;Described IC chip U3 the 3rd end and the 4th end connect connector J2 second end respectively With the 3rd end.
Preferably, also include EMI circuit, for filtering the interference to power supply for the high-frequency impulse of civil power,;Peak absorbing electricity Road, for absorbing the peak voltage on ultra-thin high frequency transformer;Described EMT circuit connects current rectifying and wave filtering circuit and ultra-thin height respectively Frequency power transformer, described peak absorbing circuit connects ultra-thin high frequency transformer and IC oscillating circuit respectively.
Preferably it is characterised in that described IC chip U2 is the integrated circuit of model OB2371;Described IC chip U1 is type The integrated circuit of number JW7707C;Described IC chip U3 is the integrated circuit of model C X2901A.
Compared to existing technology, the beneficial effects of the present invention is:By circuit structure design, and the setting of ultra-thin transformer Meter using so that whole charger charge efficiency is higher and structure on become thinner, use more convenient, attractive in appearance.
Brief description
Fig. 1 is the decomposing schematic representation of the charger in the embodiment of the present invention;
Fig. 2 is the schematic top plan view of the ultra-thin high frequency transformer in the embodiment of the present invention;
Fig. 3 is the front schematic side view of the ultra-thin high frequency transformer in the embodiment of the present invention;
Fig. 4 is the winding coiling schematic diagram of the ultra-thin high frequency transformer in the embodiment of the present invention;
Fig. 5 is the schematic diagram of the ultra-thin charger circuit in the embodiment of the present invention;
In figure:10th, upper insulation crust;20th, circuit board;21st, skeleton;211st, hollow heart axle;22nd, iron core;221st, upper core; 222nd, lower core;223rd, iron mandrel;23rd, winding;231st, high connductivity wire-coated;232nd, high magnetic conduction wire-coated;24th, PIN;30、 Metal clips;40th, contact plug;50th, lower insulation crust.
Specific embodiment
Below, in conjunction with accompanying drawing and specific embodiment, the present invention is described further:
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, and It is not used in the restriction present invention.
For preferably describing the embodiment of the present invention, described in this specification " front, back, left, right, up, down is " in accompanying drawing Direction consistent.
As Fig. 1, a kind of ultra-thin charger, including upper insulation crust 10, lower insulation crust 50, circuit board 20, contact plug 40 and metal clips 30;Circuit board 10 is fixed on lower insulation crust 50 inner face, and metal clips 30 one end is electrical with circuit board 20 It is fixedly connected, one end connects with contacting plug 40 and rotating;Contact plug 40 rotates and is fixed on lower insulation crust 50;Upper insulation crust 10 together with the cooperation fixation of lower insulation crust 50, and circuit board 20 and metal clips 30 are all outer located at upper insulation crust 10 and lower insulation Shell 50 combines inside;When contact plug rotates, it is contacted with metal clips elastic rotation, by metal clips connection circuit plate, Realize plug and can rotate use, use more convenient.It is mainly big that circuit board has USB connector, ultra-thin high frequency transformer etc. Volume device, in the present embodiment circuit board use ultra-thin high frequency transformer thickness be not more than USB connector thickness so that Whole charger construction is simpler, and charger is square and thickness is thinner, compares and makes charger using traditional transformer Big and plain seem more attractive.
As Fig. 2, Fig. 3, ultra-thin high frequency transformer includes PIN 24, skeleton 21, iron core 22 and winding 23;In skeleton 21 Center portion is divided with hollow heart axle 211, and PIN 24 is inlayed in skeleton 21 two ends, and PIN 24 is Flat-attached type;Iron core 22 is divided into Upper core 221, lower core 222, the clamping plate that iron core 22 includes iron mandrel 223 and connects iron mandrel one end;Upper core axle is from upper And under pierce into hollow heart axle 211, lower core axle from below to up pass through hollow heart axle 211, the length of upper and lower iron mandrel and more than etc. In hollow mandrel length;Winding 23 includes multilayer magnetic conduction wire rod 232 and multi-layer conductor leads wire rod 231, and winding is wrapped in the hollow heart Axle periphery.
As Fig. 4 it may be preferable that magnetic conduction wire-coated 232 can be molybdenum manganese alloy or the high magnetic conduction of slope film alloy enamel-covered wire composition Wire-coated, electric wire layer can be copper or the high connductivity wire-coated 231 of aluminium enamel-covered wire composition;Winding 23 according to by internal layer to outer The order that layer is followed successively by magnetic conduction wire-coated 232, electric wire layer 231 and magnetic conduction wire-coated 232 carries out coiling, according to actual needs Electric wire layer can be multilayer, such as 2 layers, 3 layers etc., material is thus formed full frame shield structure, and electromagnetism magnetic flux will not be revealed, carry High efficiency, because the capacity of transformer actual demand is typically all that design in advance is reserved, so improving efficiency, just makes initially to manage Just can become less by capacity, core volume also just can become less, reserve area one in the same manner in the circuit board and fix, iron The thickness of core also just diminishes, and becomes thinner, then joins aforementioned skeleton structure, just realizes the ultra-thin transformation of more regular shape Device, so that charger becomes thinner.
As Fig. 5, a kind of ultra-thin charger circuit, including:Current rectifying and wave filtering circuit, for by mains voltage commutation Cheng Ping Steady dc source;Ultra-thin high frequency transformer, for isolation transmission electric current;IC control circuit, for controlling ultra-thin high frequency transformation The armature winding of device and the break-make of power supply;Charging output circuit, for exporting DC charging voltage;IC power supply circuits, for right IC in IC control circuit powers;Described charging output circuit includes high-frequency synchronous rectifying output circuit and access device identification electricity Road;Described rectification filter circuit output end connects ultra-thin high frequency transformer;Described IC control circuit connects described ultra-thin high frequency and becomes Depressor;Described IC power supply circuits connect ultra-thin high frequency transformer and IC control circuit respectively;Described high-frequency synchronous rectification output electricity Road connects ultra-thin high frequency transformer;Described access device identification circuit connects high-frequency synchronous rectifying output circuit.Civil power is through whole Reason filter circuit becomes stable DC voltage, is input to ultra-thin high frequency transformer armature winding reconnection IC control circuit and passes back Ground wire, forms loop;Ultra-thin high frequency transformer armature winding senses ultra-thin high frequency transformer assists winding and produces voltage through IC Power supply circuits are powered for IC control circuit;IC control circuit starts, and control loop break-make forms vibration;Secondary windings sensing is formed Exchange connects charging output circuit output charging voltage.
IC control circuit includes:Chip U2, resistance R11, resistance R10, resistance R18, fast diode D2 and metal-oxide-semiconductor Q2; Chip U2 is the integrated circuit of model OB2371, totally 8 pins;Described metal-oxide-semiconductor drain electrode connects ultra-thin high frequency transformer, and source electrode is even Connecting resistance R18, grid connects resistance R11;After described resistance R10 and fast diode D2 series connection, entirety with resistance R11 and connects; Described resistance R11 connects the 6th pin of chip U2;Described resistance R18 ground connection.Chip U2 starts, the 6th pin output square wave, high During level, metal-oxide-semiconductor Q2 turns on, and during low level, metal-oxide-semiconductor Q2 ends, and defines the break-make of armature winding, and forms vibration.
IC power supply circuits include:Resistance R1 and commutation diode D3;Described resistance R12 one end and commutation diode D3, super Thin high frequency transformer assists winding sequential concatenation;Described resistance R12 connects the 8th pin of IC chip U2.Assists winding sensing is just Level winding produces alternating voltage, carries out rectification by diode D3, is rectified into DC voltage, and electric capacity C16 filtering in Fig. 5 Forming stable DC voltage provides operating voltage for IC chip U2.
High-frequency synchronous rectifying output circuit includes IC chip U1, electric capacity C1, electric capacity C6, resistance R3 and electric capacity C7;Described IC It is connected electric capacity C1, be linked in sequence between the second end and the 3rd end resistance R3 and electric capacity C6 between chip U1 first end and the second end; Described IC chip U1 is the integrated circuit of model JW7707C, and its second end connects ultra-thin high frequency transformer secondary windings;Described Three-terminal link electric capacity C7;Described electric capacity C7 ground connection.Ultra-thin high frequency transformer secondary windings senses first winding and produces alternating voltage, It is rectified into DC voltage through IC chip U1 to be exported.
Equipment identification resistance includes IC chip U3, connector J1 and connector J2;Described IC chip U3 is model C X2901A Integrated circuit, its second end is connected and is grounded with the 4th end of described connector J1 and connector J2;Described IC chip U3 Five ends are connected with the first end of described connector J1 and connector J2 and are connected to IC chip U1 the 3rd end;Described IC chip U3 first End and the 6th end connect connector J1 second end and the 3rd end respectively;Described IC chip U3 the 3rd end and the 4th end connect respectively Connect device J2 second end and the 3rd end.J1, J2 make an excuse for USB, and this identification circuit can recognize that being accessed the equipment charging is judged, And shaken hands by corresponding charge protocol and equipment, it is allowed to obtain maximum charging current, save on the premise of protection charging equipment Save the charging interval, applicable extensive at present Android system, the mobile phone of apple system.
This ultra-thin charger circuit also includes EMI circuit, for filtering the interference to power supply for the high-frequency impulse of civil power, simultaneously Also function to reduce power supply electromagnetic interference to external world itself;Peak absorbing circuit, for absorbing the point on ultra-thin high frequency transformer Peak voltage;Described EMT circuit connects current rectifying and wave filtering circuit and ultra-thin high frequency transformer respectively, and described peak absorbing circuit connects respectively Connect ultra-thin high frequency transformer and IC oscillating circuit.
In embodiments of the present invention, by designing on circuit structure, circuit structure area occupied is little for beneficial effect, and By using ultra-thin high frequency transformer design using so that whole circuit board thickness is less, be aided with using metal clips and The regular shape design of insulation crust, so that whole charger is thinner, more attractive, uses more convenient up and down;Simultaneously in electricity Using IC control circuit in road, higher to current sampling precision so that charge efficiency is higher, using high-frequency synchronous rectification circuit, So that output charging current speed is faster, using access device identification circuit so that charge mode can be switched according to access device, So that charging faster, reach the higher benefit of charge efficiency.
It will be apparent to those skilled in the art that can technical scheme as described above and design, make other various Corresponding change and deformation, and all these change and deformation all should belong to the protection domain of the claims in the present invention Within.

Claims (10)

1. a kind of ultra-thin charger it is characterised in that include upper insulation crust, lower insulation crust, circuit board, contact plug and Metal clips;Metal clips is connected with circuit board and all combines located at upper insulation crust and lower insulation crust internal;Contact plug It is rotationally connected with lower insulation crust, when contact plug rotates, contact plug and metal clips Elastic Contact, by metal clips even Circuit passband plate, described circuit board has USB connector, ultra-thin high frequency transformer, and the thickness of ultra-thin high frequency transformer is not more than USB The thickness of connector.
2. a kind of ultra-thin charger according to claim 1 is it is characterised in that described ultra-thin high frequency transformer includes PIN Pin, skeleton, iron core and winding;Described skeleton has hollow heart axle;Described iron core includes upper and lower iron core, described upper and lower iron core bag The clamping plate including iron mandrel and connecting iron mandrel;Described iron mandrel passes through hollow heart axle;Described winding includes multilayer magnetic conduction wire rod And multi-layer conductor leads wire rod, it is peripheral that described winding is wrapped in hollow heart axle.
3. a kind of ultra-thin charger according to claim 2 is it is characterised in that described winding is followed successively by outer layer by internal layer Magnetic conduction wire-coated, electric wire layer and magnetic conduction wire-coated.
4. the ultra-thin charger circuit described in a kind of claim 1 is it is characterised in that include:Current rectifying and wave filtering circuit, for by city Electric ac voltage rectifier becomes stable dc source;Ultra-thin high frequency transformer, for isolation transmission electric current;IC control circuit, uses In the armature winding of the ultra-thin high frequency transformer of control and the break-make of power supply;Charging output circuit, for exporting DC charging voltage; IC power supply circuits, for powering to the IC in IC control circuit;Described charging output circuit includes high-frequency synchronous rectification output electricity Road and access device identification circuit;Described rectification filter circuit output end connects ultra-thin high frequency transformer;Described IC control circuit Connect described ultra-thin high frequency transformer;Described IC power supply circuits connect ultra-thin high frequency transformer and IC control circuit respectively;Described High-frequency synchronous rectifying output circuit connects ultra-thin high frequency transformer;It is defeated that described access device identification circuit connects high-frequency synchronous rectification Go out circuit.
5. ultra-thin charger circuit according to claim 4 is it is characterised in that described IC control circuit includes:Chip U2, Resistance R11, resistance R10, resistance R18, fast diode D2 and metal-oxide-semiconductor Q2;Described metal-oxide-semiconductor drain electrode connects ultra-thin high frequency transformation Device, source electrode connects resistance R18, and grid connects resistance R11;Described resistance R10 and fast diode D2 series connection after again with resistance R11 In parallel;Described resistance R11 connects chip U2;Described resistance R18 ground connection.
6. ultra-thin charger circuit according to claim 4 is it is characterised in that described IC power supply circuits include:Resistance R1 With commutation diode D3;Described resistance R12 one end and commutation diode D3, ultra-thin high frequency transformer assists winding sequential concatenation; Described resistance R12 connects IC chip U2.
7. ultra-thin charger circuit according to claim 6 is it is characterised in that described high-frequency synchronous rectifying output circuit bag Include IC chip U1, electric capacity C1, electric capacity C6, resistance R3 and electric capacity C7;It is connected electricity between described IC chip U1 first end and the second end Hold C1, be linked in sequence between the second end and the 3rd end resistance R3 and electric capacity C6;Described IC chip U1 second end connects ultra-thin high frequency Transformer secondary output winding;Described three-terminal link electric capacity C7;Described electric capacity C7 ground connection.
8. ultra-thin charger circuit according to claim 7 is it is characterised in that described access device identification resistance includes IC Chip U3, connector J1 and connector J2;Described IC chip U3 second end and the 4th end of described connector J1 and connector J2 Connect and be grounded;Described IC chip U3 the 5th end is connected with the first end of described connector J1 and connector J2 and is connected to IC chip U1 the 3rd end;Described IC chip U3 first end and the 6th end connect connector J1 second end and the 3rd end respectively;Described IC chip U3 the 3rd end and the 4th end connect connector J2 second end and the 3rd end respectively.
9. ultra-thin charger circuit according to claim 4, it is characterised in that also including EMI circuit, is used for filtering civil power The interference to power supply for the high-frequency impulse;Peak absorbing circuit, for absorbing the peak voltage on ultra-thin high frequency transformer;Described EMT circuit connects current rectifying and wave filtering circuit and ultra-thin high frequency transformer respectively, and described peak absorbing circuit connects ultra-thin high frequency respectively Transformer and IC oscillating circuit.
10. ultra-thin charger circuit according to claim 8 is it is characterised in that described IC chip U2 is model OB2371 Integrated circuit;Described IC chip U1 is the integrated circuit of model JW7707C;Described IC chip U3 is the collection of model C X2901A Become circuit.
CN201611009627.9A 2016-11-16 2016-11-16 Ultra-thin charger and circuit thereof Pending CN106451662A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611009627.9A CN106451662A (en) 2016-11-16 2016-11-16 Ultra-thin charger and circuit thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611009627.9A CN106451662A (en) 2016-11-16 2016-11-16 Ultra-thin charger and circuit thereof

Publications (1)

Publication Number Publication Date
CN106451662A true CN106451662A (en) 2017-02-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611009627.9A Pending CN106451662A (en) 2016-11-16 2016-11-16 Ultra-thin charger and circuit thereof

Country Status (1)

Country Link
CN (1) CN106451662A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108134415A (en) * 2017-12-18 2018-06-08 王珏 A kind of multifunctional charger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108134415A (en) * 2017-12-18 2018-06-08 王珏 A kind of multifunctional charger
CN108134415B (en) * 2017-12-18 2019-02-22 王珏 A kind of multifunctional charger

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Address after: Pinghu street Longgang District of Shenzhen City, Guangdong province New River 518111 Industrial Zone No. 70 mu Gu Bora 1 building

Applicant after: Shenzhen Xin Ji Technology Co. Ltd.

Address before: Pinghu street Longgang District of Shenzhen City, Guangdong province New River 518000 Industrial Zone No. 70 mu Gu Bora 1 building

Applicant before: Xinji (Shenzhen) Computer Parts Co., Ltd.