preface
MECHREVO Mechanical Revolution is a game laptop brand launched in 2014, and its product supply chain comes from professional game hardware manufacturers, peripheral manufacturers, and computer manufacturers around the world, and is committed to providing high-configuration and high-performance gaming laptop products for game enthusiasts.
Recently, the charging head network got a power adapter that comes standard with the mechanical revolution game, in order to make the device fully operational, the power supply power has reached 280W, and it can be understood from the nameplate that this is also a silicon carbide power adapter. The following charging head network will disassemble the power supply of mechanical revolution and take a look at the specific design.
Mechanical Revolution 280W Silicon Carbide Power Adapter Appearance
The Mechanical Revolution 280W Silicon Carbide Power Adapter is designed with a classic black color elongated body shape, the input power cable is detachable for easy user replacement, and it also comes with a DC output cable.
The fuselage is long and flat, the shell is made of PC+ABS flame retardant material, the surface is frosted to treat anti-fingerprints, and the edge design is not handy.
The center of the top surface of the fuselage is designed with the MECHREVO brand, and the brand letters are shiny and contrasting.
There is a power adaptation nameplate on the bottom.
Close-up of the nameplate of the power adapter
型号：TFHK-SiC02-280W-CN
输入：100-240V~，50-60Hz 4.0A
Output: 20V14A
Producer: Tongfang Co., Ltd
Manufacturer: Beijing Nuclear Technology Aneng Technology Co., Ltd
Manufacturer: Hangzhou Borui Electronic Technology Co., Ltd
The power adapter is CCC certified as well as Class VI energy efficiency certified.
One end of the fuselage is equipped with a zigzag input socket, which is designed as an independent module.
The output cable at the other end is treated with anti-bending protection, and the cable is equipped with a double-shielded magnetic ring to ensure better power output.
The DC terminals are angled for easy use in tight corners.
The measured length of this power adapter is 154.83mm.
The width is 79.94mm.
The thickness is 30.44mm.
In addition, the length of the DC output line was measured to be about 123cm.
Feel the size of the power adapter in your hand.
The weight of the Mechanical Revolution 280W silicon carbide power adapter is about 655g.
Mechanical Revolution 280W Silicon Carbide Power Adapter Appearance
The extension seam of the power adapter shell is disassembled, and the ultrasonic welding process is used to encapsulate it, and the shell is PC+ABS flame retardant material.
The PCBA module is covered with a large heat sink for heat dissipation, and at the same time, there is a Mylar sheet isolation and insulation, and the heat sink is soldered and fixed.
Remove the heatsink and Mylar blade.
The front and back of the corresponding PCBA module are pasted with large thermal pads to help conduct heat.
The front of the PCB board is at a glance, the device layout is neat, and there are heat sinks on both sides to help the rectifier bridge and power MOS tube dissipate heat, and the transformer is glued and reinforced.
The back of the motherboard is equipped with X2 capacitor discharge chip, main control chip, synchronous rectifier controller, synchronous rectifier tube and other devices.
The input terminal of the PCBA module is at a glance, and the right side of the female socket is equipped with a delay fuse, a varistor, a safety X capacitor and a common mode inductor, the common mode inductors are wrapped with insulating tape, and a rectifier bridge is fixed on the left side heat sink.
The left side of the female socket is equipped with a thin film filter capacitor and a filter inductor.
The heat sinks on both sides are removed, and the middle area of the PCB board is equipped with PFC boost inductor, high-voltage filter electrolytic capacitor, main control chip power supply capacitor, PFC boost switch tube, PFC rectifier tube, LLC half-bridge switch tube and other devices.
The delay fuse comes from Chengrun Electronics, and the specification is 6.3A 250V.
VDR varistor 10D471K for input overvoltage protection.
Common mode inductors are wound with enamelled and insulated wires to filter out EMI interference.
Close-up of another common-mode inductor, two-stage design.
This common-mode inductor is insulated with a bakelite board at the bottom.
The safety X2 capacitor has a three-stage design, with a capacity of 0.47μF.
Close-up of the X2 capacitor discharge chip, the information is unknown.
The two rectifiers are designed side-by-side, with heat sinks between them to help transfer heat from the inside to the main heat sink.
The rectifier bridge is from JF Jifu, model GBU2510, specification is 1000V 25A.
The thin-film filter capacitor is from WDC and has a specification of 0.68μF.
Close-up of filter inductor, wrapped with insulating tape.
Close-up of another film capacitor, spec 105K450.
The silk screen on the surface of the main control chip is polished, and the information is unknown.
The PFC boost switch is from CETC Guoji South, the model is WM2A060065N, and it is a silicon carbide switch tube.
Close-up of PFC boost inductor.
Close-up of PFC boost rectifier tube, silk screen is polished, information unknown.
The high-voltage filter electrolytic capacitor is also from Emerald and has a specification of 450V 180μF.
The two MOS tubes used for the LLC half-bridge are MagnaChip Magnachip, the actual model is MMF60R115P, NMOS tubes, withstand voltage 650V, conduction resistance 0.115Ω, and is available in a TO-220F package.
The power supply capacitor of the main control chip is from BERYL Emerald, and the specification is 35V 220μF.
The output terminal is equipped with resonant capacitors, resonant inductors, transformers and multiple filter solid-state capacitors, and the gap between the resonant inductor and the transformer is filled with white glue reinforcement.
Close-up of resonant capacitors.
Close-up of resonant inductance.
Close-up of transformer.
The blue Y capacitor is from JEC Zhixu Electronics.
SMD Y capacitors come from Sichuan Teruixiang Technology Co., Ltd., which have the characteristics of small size and light weight, which are very suitable for high-density power products such as gallium nitride fast charging. The part number is TMY1681M.
Teruixiang focuses on the research and development, production and sales of passive components, with a registered capital of 100 million yuan. It has two categories of independent capacitor brands: SMD TRX and DIP TY capacitors, TRX will be committed to the research of ceramic materials, in order to expand more categories of applications, to provide customers with more solutions.
The charging head network learned that in addition to being used by dozens of high-power chargers such as Maiduoduo 100W gallium nitride, OPPO 65W super flash charge gallium nitride charger, Lenovo 90W gallium nitride fast charging, etc., it can also be applied to 20W mini fast charging of brands such as Hailutong, First Guard, Belkin, etc., and its performance has been unanimously recognized by customers.
Another close-up.
Two 1008 optocouplers for output voltage feedback and circuit protection.
Close-up of the synchronous rectifier controller, the information is not available.
The four MOS tubes are all from Toshiba, model TPH2R306NH, NMOS tubes, withstand voltage 60V, use two in parallel, for LLC synchronous rectification.
The output filtered solid-state capacitors are also from Emerald, with two specifications of 25V 1500μF and one specification of 25V 680μF.
There is also a specification of 25V 1000μF.
One informationless dual op amp is used for constant voltage and constant current control.
A list of all dismantling and a family photo.
Summary of the dismantling of the charging head network
Mechanical Revolution 280W silicon carbide power adapter is designed in a classic style, the body and power cord are separated from the design to facilitate users to change the corresponding specifications of cables to different regions, and the elbow design of the DC cable is convenient for use in narrow corners, and it is equipped with a double shielded magnetic ring to ensure better output. The power supply supports a wide voltage input of 100-240V, and has passed CCC certification and Level VI energy efficiency certification.
Through dismantling, the charging head network learned that as a high-power notebook power supply, the internal PCBA module uses a large thermal pad and a heat sink for heat dissipation, and the core heating device is also equipped with a special heat sink to ensure that the power supply can run with high power for a long time. The dismantling found that the core device information was polished, and the specific use scheme could not be determined, but it can be judged that the voltage adopts the current mainstream PFC+LLC power supply architecture, and it also does use a silicon carbide switch WM2A060065N in the south of the national base, which is reliable in publicity.