Global Debut of NuVolta Qi2 MPP Module
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About NuVolta
In December 2021, belkin, a big brand that has been maintaining close cooperation with Apple, launched a 3-in-1 magnetic wireless charging board WIZ016. The price of this product on Apple's official website is as high as 1098 yuan, to meet the high-end purchase demand of Apple's new phone users. It is worth mentioning that this new charging product is the only one on the market to support iWatch S7 fast charging multi-in-one products.
As a 3-in-1 magnetic wireless charging pad, it naturally supports wireless charging for Apple's iPhone 12/13 series phones, headphones, and watches at the same time, and thanks to the built-in MFM-certified MagSafe wireless charging module, it can get the same 15W wireless charging power as Apple's original accessories. The following is a detailed dismantling of this product, to see how the actual material workmanship.
Belkin 3-in-1 Wireless Charging Board Appearance
The front of the box features the belkin brand logo, the product name, the appearance and the three selling points, and the bottom of the box has the Apple MFM certification logo.
Product description, adaptive device and merchant information are printed on the back.
Available devices include iPhone 12 series, iPhone 13 series, AirPods Pro, AirPods 2 with wireless charging case, AirPods wireless charging case, and all Apple Watch models.
The package contains a charging board, charger and instruction manual. The charging board is covered with a plastic bag to prevent dust.
The adapter features a runway design, a Belkin logo on the top, and a DC output cable.
Parameters are marked on the charger input housing
Cables are bound with rubber rings and the output end is a DC round head.
Belkin's charging pad is flat and made of silicone on the top and sides, which makes it feel nice and classy.
The left, middle and right areas on the top of the board are used for wireless charging of mobile phones, headphones and watches, respectively.
The left side is directly embedded in a magnetic wireless charger, junction tight no gap, workmanship is very good.
The earphone wireless charging area is concave to avoid slipping, and an indicator light is set at the edge.
The Watch magnetic charging plate is hollowed out on the right side, which can swing so that the Apple Watch can be wireless charged horizontally or vertically.
The bottom shell is covered with anti-slip pad and printed with product parameters
The input end is provided with a T-shaped groove, matching adapter right Angle DC round head, can hide the plug into a flat surface, and the plug is fixed without pulling, more stable power supply.
The measuring length of the charging board is about 23.5cm.
The width is 86.55mm.
The thickness is 16.12mm.
The intuitive feeling of the charging pad in your hand.
The net weight is about 473g.
One of the big benefits of the device is that it can simultaneously charge the entire Apple bucket wirelessly.
And can activate Apple iPhone 12/13 series mobile phone magnetic suction charging animation.
It measured 19.47W of input power while simultaneously charging the iPhone family barrel wirelessly.
Belkin 3-in-1 wireless charging pad disassembled
Belkin 3-in-1 Wireless Charging Pad Disassembled
Remove the non-slip pad and you can see that the case is enclosed with six screws.
The shell can be opened by removing the screws. The wireless charging module on both sides takes electricity by connecting the PCB board in the middle. The edge is equipped with counterweight iron to lift the weight of the product and avoid sliding.
Magnetic suction module and PCB board are fixed with screws.
Remove the screws and take out the PCB board and magnetic suction module. The front of the board is covered with a shield cover.
Remove the shield cover, the center of the board hollow, there are two small shield cover.
Under the square shield is an inductor, and a blue thermal pad is attached to the step-down chip on the left.
Rectangular shield cover is provided with a small black board, the board is provided with a watch magnetic wireless charging road.
The connecting wire of the mobile phone wireless charging module is cemented.
The other side of the headset holds a wireless charging coil and is equipped with a thermistor for temperature monitoring
Close-up of the DC input home.
Close-up of input filter inductance.
Two Shenzhen Gufeng G16P03 PMOS tubes, withstand voltage 30V, for input protection.
MPS MP2315 synchronous step-down converter, input voltage up to 24V, maximum output current 3A, for the headset wireless charging step-down power supply.
10μH alloy step-down inductor.
AirPods wireless charging transmitter control chip adopts NuVolta NU1509, integrates ARM-M0 core, covers high-precision FOD algorithm, conforms to WPC1.2.4EPP protocol, controls high-precision PWM output, supports LED charging status indicator, built-in fast charging protocol, and supports comprehensive protection function. Meet the customization needs of various customers.
Details on NuVolta NU1509.
And by taking it apart, NuVolta's wireless charging schemes are also included in Xiaomi MIX4 mobile phone dedicated 100W vertical air-cooled wireless charger, Xiaomi 80W Junkie air-cooled wireless charger, Xiaomi 55W vertical air-cooled wireless charger, Xiaomi Intelligent tracking wireless charger, Xiaomi 30W vertical air-cooled wireless charger and mophie Charge Stream Pad Mini wireless charger, Purple Meter 20W wireless fast charging car bracket and other brands of dozens of products.
NuVolta NU1009A integrates power level full bridge MOS tube for wireless charging and emission, built-in switch voltage regulator and LDO power supply for the main control IC, and built-in high-precision current detection and demodulation as well as I2C communication, integrated protection function.
Details of NuVolta NU1009A.
Kya KYET MPP Wireless charging dedicated film capacitor, 0.4μF, 100V withstand voltage.
Close-up of two LED indicators.
Close-up of thermistor.
The wireless charging coil is wound tightly.
Mobile phone wireless charging module is used by Apple MFM certification MagSafe wireless charging module, charging head network has been dismantled in detail for many times, here is no longer dismantled, you can click the link to see the previous dismantling.
Another MP2315, depressurize for the watch wireless charging module power.
Close-up of filter inductance.
The wireless charging scheme on the small black plate is the same as the original magnetic suction wireless charging device of the Apple Watch Series 7, which means the wireless charging part of the watch is completely original.
In the center of the front of the small board is a step-down controller, STM32L433RC, ultra-low power single-chip microcomputer, built-in 80MHz ARM M4 processor, built-in 256KB memory, support USB connection and LCD screen driver.
The other side is provided with a voltage regulating device.
The customized chip of silk screen 338S00810-A0 is used for wireless charging voltage regulation. The inductance below is coordinated with the chip for voltage regulation. There are several capacitors for filtering and resonance.
Watch wireless charging front plastic plate removed, a large number of internal glue into a whole.
A layer of induction coils is attached to the coil.
Dig out the wireless charging coils and circuit boards.
The e small board is no component, mainly used to connect the wireless charging coil.
The watch wireless charging coil is made of Leeds wire.
All disassembled. Let's get a family photo.
Disassembly Summary
Belkin's 3-in-1 magnetic wireless charging board is based on the wireless charging selling point of the family bucket at the same time. It is very convenient to charge the device when you come home after a day out. Moreover, through disassembling, it is found that the wireless charging modules of the mobile phone and Watch are all original from Apple, so the quality is not only reliable, but also iPhone 12/13 and Apple Watch can obtain the same magnetic absorption charging effect as the original accessories of Apple.
In addition, it is found that the PCB board is also equipped with a wireless charging circuit for earphones, which adopts the wireless charging scheme of NuVolta's NU1509+NU1009A, with high integration and perfect protection function, to meet the customized needs of various customers. Belkin's 3-in-1 magnetic wireless charging pad was also designed and shipped with a complete PCBA from NuVolta. In addition to providing single chip solutions, NuVolta has also expanded into high-end customization and development services, with extraordinary competitiveness.
Original article from CHONGDIANTOU：https://mp.weixin.qq.com/s/30IPjQRRXlHGdxYJ2hDp_A