Huawei Mobile Phone Adopts A Special Fast Charging System, Combined With A Special Data Cable And A Special Charger To Provide Users With An Ideal Fast Charging Experience With Low Temperature And High Speed. At The Same Time, The Fast Charging Power Is Also Increased From The Mainstream 44w To 66W. The Charging Speed Is Faster And The Effect Of Power Supplement In A Short Time Is Better. However, The Price Of Original Accessories Is Not Cheap. Users Will Choose Other Channels. At This Time, It Is Easy To Fall Into The Pit.
The Charging Head Network Purchased A Fake Huawei 66W Charger, Which Was Disassembled And Compared With The Original Genuine 66W Charger At The Same Time. In An Article, It Also Showed The Internal Design And Materials Of The Two Chargers To See The Value For Money Of The Original Charger And How The Fake Charger Stole Work And Materials.
Product Appearance
Huawei 66W Super Fast Charging And Shanzhai 66W Charger Are Both Classic Huawei Family Fast Charging Appearance Styles. It Is Generally Difficult For New Users Or New Users To Distinguish Between True And False.
Size / Power Density
Through Comparison And Caliper Measurement, Huawei 66W Super Fast Charger Is The Same Size As Shanzhai 66W Charger, And The Three-dimensional Is About 50 50 28mm, Which Further Increases The Difficulty Of Discrimination.
Interface
However, The Design Of The Interface Terminal Immediately Exposed The Fake Charger. Although The Color Of The Interface Tongue Of The Two Chargers Is Similar, Huawei 66W Super Fast Charging Is Obviously More Exquisite. 66W And Huawei Supercharge Are Printed Next To The Interface.
The Fake Version Of 66W Charger Not Only Has Rough Interface Workmanship, But Also Has Different Marks. It's 66W And Rkaig Supercharge. It's Really Blatant.
Nameplate
Huawei 66W Super Fast Charger And Shanzhai 66W Charger Can Be Easily Distinguished By The Deep And Shallow Font On The Input Nameplate, Although The Parameters Are Basically The Same.
Weight
The Weight Of Huawei 66W Super Fast Charging Is About 91g, While That Of The Shanzhai Version Is Only About 69g. In Addition, After Disassembly, It Is Found That There Is An Iron Block Weighing 20g Inside. The Working Materials Of The Fake Charger Are Really Too Water.
Front Layout Of Internal Structure
The Interior Of Huawei's Original 66W Charger Is Full Of Components. On The Left Is A Plane Transformer And In The Middle Are Four High-voltage Electrolytic Capacitors, Which Are Full Dangdang。 In Contrast, The Shanzhai Version Of 66W Charger Only Uses A High-voltage Electrolytic Capacitor, The Transformer Is Also Much Smaller, The Circuit Board Has A Lot Of Space, And The Visual Output Power Can Only Reach 20W.
Back Layout
Huawei Original 66W Super Fast Charging Circuit Board, Back Welding Rectifier Bridge, Primary Main Control Chip, Secondary Synchronous Rectifier, Protocol Chip And Feedback Optocoupler, Etc. There Are No Components On The Back Of The Fake Charger, Which Is In Sharp Contrast.
Working Material Primary Controller
The Built-in Primary Controller Of Huawei 66W Super Fast Charging Comes From Liyi Technology, And Silk Screen Printing Ag = 7b. In Order To Customize The Model, By Checking The Circuit Structure, It Is Speculated That ZVS Zero Voltage Flyback Can Reduce The Switching Loss Of The Switch Tube And Improve The Conversion Efficiency Of The Charger. The Shanzhai Version 66W Charger Has A Built-in Power Chip With Integrated Switch Tube, Screen Printing Bjm7102, Which Is Also Used In Other Shanzhai Chargers. It Is Cooled By Fixing The Counterweight Iron Block With Glue.
Synchronous Rectifier Controller
Huawei's 66W Super Fast Charging Protocol Chip Has A Built-in Synchronous Rectification Controller To Drive The External MOS Tube For Synchronous Rectification. The Synchronous Rectification Of Shanzhai Version 66W Charger Uses A Synchronous Rectification Chip Encapsulated In So8. The Screen Print Of The Chip Is Polished And The Information Cannot Be Recognized.
Protocol Chip
The Built-in Protocol Chip Of Huawei's Original 66W Charger Comes From Liyi Technology, With Silk Screen Printing Fe = 7h, And The Protocol Chip Has Built-in Synchronous Rectification Function. The Built-in Protocol Chip Of Shanzhai 66W Charger Is SOT23-6 Package And Screen Printed 2r18u.
Primary Switch Tube
The Switch Tube Of Huawei 66W Super Fast Charging Charger Comes From St Yifa Semiconductor, The Model Is Stf18n65m2, The Withstand Voltage Is 650V, The Conductivity Is 0.33 Ω, And Is Packaged In To220fp. The Switch Tube Of Shanzhai 66W Charger Is Integrated By Primary Chip, And The Information Is Unknown, But Judging From The Package, The Maximum Supporting Power Is 20W.
Synchronous Rectifier
The Built-in Synchronous Rectifier Tube Of Huawei 66W Super Fast Charging Charger Comes From St STMicroelectronics. The Model Is Stl90n10f7, With Withstand Voltage Of 100V And Conduction Resistance Of 8m Ω. It Is Packaged In Dfn5 * 6. The Synchronous Rectifier Tube Of Shanzhai 66W Charger Is Integrated In The Synchronous Rectifier Chip, And The Information Is Unknown.
Capacitance
The Capacitance Gap Between The Two Chargers Is Even Greater. Huawei 66W Charger Has Four Fengbin 400V 22 Built-in μ F Capacitor Filter, All Capacitors Are Th Series 125 ℃ High Temperature Resistant Capacitors. A 400v22 Is Built Into The Shanzhai 66W Charger μ F Electrolytic Capacitor Filter.
The Output Of Huawei 66W Charger Is Filtered By Three Beryl Emerald Ch Series Solid-state Capacitors, With A Total Capacity Of 1830 μ F。 Shanzhai 66W Charger Uses A 470 μ F And 680 μ F Electrolytic Capacitor Filter With A Capacity Of 1150 μ F。 The Performance Of Electrolytic Capacitor Is Inferior To That Of Solid-state Capacitor, And The Output Ripple Can Not Be Guaranteed.
Connector
Both Chargers Are Positive And Negative Widened Bus Seats. Huawei 66W Charger Adopts Straight Edge Usb-a Bus Seat, Which Is Insulated With Plastic Shell. Shanzhai Version 66W Charger Uses Crimping Mother Seat, Which Is Very Different In Appearance.
Product Performance Agreement
Huawei 66W Super Fast Charging Supports QC2 0. FCP And SCP Fast Charging Protocols. The Magic Thing Is That The Test Shanzhai 66W Charger Supports Not Only Huawei FCP And SCP Fast Charging, But Also QC2 0 / 3.0, AFC And Even Vooc / Dash / VarP Fast Charging Protocols, But They Are Actually Used By Huawei mobile Phone Charging, The Power Can't Even Go Up To 10W. According To Xiaobian, It's Really "a Test Is As Fierce As A Tiger, And The Actual Output Is 250".
Charging Head Network Summary
Finally, A Comparison Table Of Huawei Genuine And Fake 66W Chargers Is Attached To Facilitate You To Compare The Differences Between The Two Products.
Domestic Android Phones Basically Use Private Fast Charging Protocols. Only With The Charger With The Correct Power Of Its Own Manufacturer Can We Achieve The Ideal Charging Effect. Neither The Old Charger Nor The Third-party Compatible Charger Can Realize High Current Fast Charging. Therefore, After Buying A Mobile Phone, Consumers Can Only Buy The Original Charger Of The Corresponding Brand If They Want The Original Charging Effect, Which Also Brings A Market For High Imitation Chargers.
Although The Fake 66W Huawei Charger Purchased By Charging Head.com Looks Fierce In Terms Of The Agreement, It Is 20 Grams Lighter Than The Original Charger With The Added Counterweight, And The Internal Materials Can Be Imagined. Actually Disassembled, The Shanzhai Charger Uses A Highly Integrated Power Supply Scheme Internally. It Is Speculated That The Output Power Is Only 20W, Which Is Far From The Original 66W Charger.
The Fake Huawei 66W Charger Not Only Has A Serious Reduction In Output Power, But Also Has Internal accessories The Quality Of The Charger Is Far Inferior To That Of The Original Charger. The Built-in Temperature Protection Of The Original Charger Does Not Exist In The High Imitation Charger. In Addition To Shrinking The Charging Power, The Safety Of Shanzhai Charger Is Also Far From That Of The Original Charger.