Recently, the charging head network got ANKERAnkeA mobile power supply, this product is equipped with2A1CThree interfaces, of which the C interface supports60WBidirectional PD fast charging, whether charging equipment or mobile power storage, is very fast.The other two USB-A ports have the same performance. They both support the maximum 18W fast charge output, support blind plug, and are more convenient to use.In addition, the capacity of the mobile power supply has reached 25600mAh, greatly increasing the endurance.Next, we will disassemble this product to see how its internal workmanship and materials are.
IAnke60WAppearance of two-way fast charging mobile power supply
The design of the packing box is very simple, and the front is ANKER brand and lightning logo.
The upper part of the back is the three characteristics of the product, and the lower part is the information of product specifications and parameters.
The package contains mobile power supply, data cable, storage bag and instructions in many languages. Except for the storage bag, plastic bags are used for packaging.
The body of the mobile power supply is long, flat and black, with a PC flame-retardant shell, an aluminum alloy panel on the front, and a smooth bright surface.
Curved surface transition between all sides of the fuselage, with rounded corners that do not hurt hands.
The front of the body is at a glance. The power button and LED indicator light are designed in one piece, and the left end isAnkeBrand, very simple design.
There are 8 LED power indicators, which are white.
The metal upper shell also has a brushed design to increase the aesthetic feeling.
The side and back of the mobile power supply are matte, and the lower end of the back is also marked with the parameter information of the mobile power supply.
Model: A1290 Cell capacity: 25600mAh Rated capacity: 14700mAh Lithium battery energy: 25600mAh/3.7V/94.72Wh PD input/output: 5V3A, 9V3A, 15V3A, 20V3A USB-A1/USB-A2 output: 5-6V3A, 6-9V2A, 9-12V1.5A USB-A1+USB-A2 output: 5V3.6A The product has passed UL, PSE and CE certification.
Output terminal is equipped with2A1CThree interfaces, blue rubber core, and IQ, PD and specification information are marked beside the interface.
Intuitive size comparison with iPhone 11 Pro,AnkeThis mobile power supply is much longer.
The thickness is equivalent to the diameter of a dollar coin.
The net weight is about 561g.
Use ChargeLAB POWER-Z KT001 to detect the output protocol of the USB-A1 interface, and display that it supports Apple 2.4A and DCP protocols, as well as QC2.0/3.0, AFC, and FCP fast charging protocols.
Using KT001, we found that the USB-A2 interface also supports Apple 2.4A, DCP, QC2.0, QC3.0, AFC, and FCP protocols.The two USB-A ports have the same performance, support blind plug, and are more convenient to use.
In addition, KT001 is used to detect the output protocol of the USB-C interface, which shows that DCP, QC2.0, and QC3.0 protocols are supported.
In addition, its PDO message shows that the USB-C interface also supports the USB PD3.0 fast charging standard, with four fixed voltage gears of 5V3A, 9V3A, 15V3A, and 20V3A.
IIAnke60WDisassembly of two-way fast charging mobile power supply
Disassemble the fuselage shell, and seal the edges with clips.The PCB board is fixed with screws, and is equipped with U-shaped metal heat sink. The electric core is glued for fixation and heat conduction.
Remove the screws to take out the PCB board and the cell.
The two half fuselage shells are pasted with graphite heat conduction stickers and plastic films for heat conduction and isolation protection. In addition, the fuselage shells are also designed with bulges and isolation plates to isolate and fix the electric core.
The front of the PCB board is covered with two metal heat sinks, and a small PCB board is placed in the center.
A heat conduction pad is arranged between the upper radiating fin and the mother seat to help conduct heat.
Seen from the side, there is also a heat conduction pad between the lower metal heat sink and the PCB board to conduct heat.
Barley insulating paper is pasted at the junction of the electric core and PCB board, and the wires are insulated with glue.
Solder down the heat sink to facilitate the observation of the circuit board.
The front of the PCB board is at a glance. Filter capacitors and magnetic ring inductors are welded. The USB-A mother seat is pasted with dust-proof tape.
The back of the PCB is the battery protection chip and the mobile power master MCU, with a large area of exposed copper and tin design, and the battery has an equalization circuit.
After the overall observation and analysis of the mobile power circuit, it is found that there is a core protection circuit on the PCB board, which adopts a structure of two independent voltage rise and fall, and three port output is controlled by the protocol chip.Now let's learn about the chip information of the circuit from the discharge of the cell to the three-way output.
The two rows of eight electric cores are LG MH1 3200mAh 18650 electric cores, two in parallel and four in series.The charging limit voltage is 4.2V, the maximum charging current is 3.1A, and the maximum discharge current is 10A.
LG MH1 cell details.
The bottom of the cell is pasted with black foam for protection to prevent collision with the body shell.
The eight electric cores are connected in two parallel and four series by nickel spot welding, and the positive and negative poles of the electric cores are protected by highland barley insulation paper.
CellWise CW1353 battery protection IC is used for mobile power supply built-in battery protection. CW1353 supports 4/5 series battery protection and battery charging equalization function to eliminate voltage imbalance of series battery packs.
CellWise CW1353 details.
Two lithium battery protection MOS tubes, Jelly EMB03P03H, PMOS, withstand voltage 30V, conductivity 3.1m Ω, logic voltage driven.
Details of JERRY EMB03P03H.
The total filtered solid state capacitance of the input and output of the cell is 25V 100 μ F.
USB-C two-way voltage rise and fall circuit:
USB-C circuit adopts Nanxin SC8812A high-efficiency synchronous two-way voltage rise and fall chip, which supports boosting or reducing voltage to charge 1 to 4 batteries, complete charging and discharging control, and support various voltage conversion and charging status indication;Built in 10bit ADC, I2C digital control interface is adopted, output voltage and current limiting value are configured, and simplified external devices help reduce the board area, and control the four switches on the back of the circuit board for voltage conversion.
Nanxin SC8812A data information.
Four JERRY EMB07N03HR NMOS transistors form an H-bridge to synchronously raise and lower the voltage, and cooperate with the inductance to raise and lower the voltage with Nanxin SC8812.
Details of Jieli EMB07N03HR.
Two other close-up shots.
Close up of voltage rise and fall inductance, multi wire parallel winding, with heat shrinkable tube covered.
USB PD fast charging protocol chip, Cypress CYPD3171.CYPD3171 is the third generation product of Cypress CCG3PA. It has built-in ARM Cortex-M0 processor, 64KB Flash 8KB SRAM, and supports QC4.0, APPLE 2.4A, AFC, BC1.2 and other charging protocols.
Cypress CYPD3171 specifications.
UBIQ QM3017AM3 PMOS,As the USB-C port switching protection switch, two are placed in series to prevent reverse flow.
UBIQ QM3017AM3 Details.
Close up of USB-C mother seat, via hole welding.
Double USB-A port voltage raising and dropping circuit:
Nanxin SC8721 chip is used for two USB-A interfaces to output voltage rise and fall.The SC8721 is internally integrated with four tube H-bridge voltage raising and dropping switch tube, with input and output voltage ranges of 2.7-22V and wide working voltage range. It supports dynamic output voltage adjustment, adjustable switching frequency, output line compensation, output current monitoring, I2C bus controlled output voltage adjustment and output current limiting adjustment, and built-in comprehensive protection functions.
Details of Nanxin SC8721.
There is highland barley paper under the magnetic ring inductance for isolation, and this one works with Nanxin SC8721 to raise and lower the voltage.
The solid state capacitance specification is 25V 100 μ F, which is used for two USB-A port voltage rise and fall filter output.
Two L2016 MOS tubes cooperate with the sampling resistor for USB-A port output current detection.
Another close-up.
The two Tianyu FP6601Q are used as the protocol IC of the two USB-A interfaces, and the USB-A interface is equipped with ESD diodes for electrostatic protection.Tianyu FP6601Q supports Qualcomm QC3.0/2.0 and Huawei FCP, automatically adjusts the output voltage on the power supply equipment by monitoring the voltage data on the USB D+/D -, and improves the charging power to shorten the charging time after mutual handshake recognition.In the case of supporting QC3.0, QC2.0 and FCP, it can also automatically identify the Apple, Samsung and BC1.2 protocols.
Detailed specifications of Tianyu FP6601Q.
UBIQ QM3003M3, PMOS, withstand voltage 30V is adopted as VBUS switch output from USB-A port.
UBIQ QM3003M3 information.
The output VBUS switch of the other USB-A port also uses UBIQ QM3003M3.
Close up of two USB-A mother seats, via hole welding.
The driving MCU of LED power display lamp is from HOLTEK Hetai, model HT66F319.
Details of Hetai HT66F319.
7533 voltage stabilizing tube is used to provide 3.3V power supply voltage for chips such as single-chip microcomputer.
The LED indicator light is enclosed in a circle, and is pasted with foam glue to prevent cross lighting. The central power switch key is pasted for welding. Press the button to display the power.
The pins on the back of the small circuit board adopt the plug and pull design, which is convenient for assembly.
The cell is equipped with thermistor for temperature monitoring.
After all disassembly, let's have a family photo.
Disassembly summary of charging head network
Anke 25600mAh60WThe bi-directional fast charging mobile power supply is composed of plastic and metal shells, with smooth surface and round corners.Both USB-A ports support QC2.0/3.0, AFC, and FCP fast charging protocols, with a maximum output of 18W, and support blind plug for easy use;The USB-C interface supports QC and PD fast charging, and has four fixed voltage gears of 5V3A, 9V3A, 15V3A, and 20V3A,60WFast charging can meet the charging needs of mobile phones, laptops and other devices.
It is found from the disassembly of the charging head network that the mobile power supply is composed of a protection circuit and two independent voltage rise and fall output circuits, with a clear structure.The electric core is connected in four strings and two in parallel. Saiwei CW1353 is equipped with MOS tube, equalization circuit and thermistor to monitor and realize the electric core protection;The USB-C circuit is controlled by the Cypress CYPD3171 protocol chip digital bus, and the input or output is realized through the bidirectional voltage rise and fall of the South Core SC8812A and MOS;Both USB-A ports are controlled by Tianyu FP6601Q, and the South Core SC8721 performs voltage rise and voltage drop output, with identical performance.
In addition, the positive and negative poles of the electric core are protected with highland barley insulating paper, the welding part of the conductor is insulated with glue, and the insulating paper is placed under the heat shrink tube of the inductance jacket;The PCB board is covered with a heat conduction pad and a heat sink. There are stiffeners inside the fuselage shell and graphite heat conduction stickers. Various heat dissipation measures are taken to reduce the temperature rise;In addition, multiple solid state capacitors are used for secondary filtering, and the overall product is made of solid materials.