The Boost Up Charge Wireless Charging Vent Mount is an Apple Store-exclusive product made by famous accessory brand Belkin. It has padded arms for gripping the phone and steadies itself by attaching to the air vent. It too supports iPhone’s 7.5W fast wireless charging but goes up to 10W for other phones. And it works with cases up to 3mm thick. Here’s our teardown review.


I Unboxing

Classic Belkin packaging with green accents.

Specifications and use scenarios on the back.

Package contents: wireless charging vent mount, user manual, and warranty card.

The cable is built-in. Model: F7U053. Input: 12V2A. Output: 10W.

Cable length: 1.1m/3.5ft.

There is a Belkin logo in the center, and the surface of the panel and the inside of the arms all have a rubber coating, which is non-slip and wear-resistant.

The mount design on the back is stable and does not shake. The rotary design adapts to various angles, both horizontal and vertical, and can be switched should you need it. Installed in the air outlet of the car air conditioner, the phone is always at the ideal temperature for fast wireless charging.

The large arms on both sides ensure a secure grip for phones ranging from 4 to 6.5-inch.

Ventilations at the top and the bottom.

As you can see, the cable is built-in and unremovable.


II Review

Using the wireless charging aging tester, we read a “PPP” which means it passed the 5W, 7.5W and 10W wireless charging. So it supports normal 5W, Apple 7.5W, and Samsung 10W wireless charging.

It starts charging instantly when we put the iPhone inside.

Our Samsung S10+ shows that it supports Samsung 10W wireless charging.


III Teardown

Pry open the panel to reveal the internal components, and on the back of the magnetic separator is an aluminum plate.

The PCBA is screwed to the casing.

Remove the wireless charging module from the housing.

The wires are connected to the PCBA through a socket.

High level of integration as we can see. And the wireless charging IC is under the QR code sticker.

The ConvenientPower EC8000 series custom IC is an efficient, Qi-compliant magnetic induction wireless power transmitter IC for applications up to 10W. The SoC integrates power controllers, microcontrollers, voltage regulators, foreign object detection (FOD), full-bridge drivers, and on-chip voltage and current demodulation. The chip integrates a full-bridge driver that provides overcurrent and overtemperature internal protection.The custom IC is available in a lead-free, small QFN 6mm x 6mm, 48-pin package. It supports single coil and multi-coil products, greatly reduces BOM cost.

Passive crystal oscillator.

Two EMB03K03 MOS tubes, withstand voltage of 30V, used to drive the wireless charging coil.

A filter inductor connected in series to the coil to reduce interference.

NPO resonant capacitor, four in parallel.

Two LED indicators.

A black foam is placed between the back of the PCBA and the coil to provide fixation.

The wireless charging coil and the black magnetic isolation plate. There is a thermistor in the center, which is fixed by a foam tape.

The coil and the thermistor wire passes through the magnetic shield and soldered to the back of the PCBA.

The serrated arm engages with the center shaft gear, and the middle shaft rotates to expand and pull back the arm.

The center shaft gear is covered with lubricant.

Close-up of the front of the center shaft gear.

Close-up of the back of the center shaft gear. It has a built-in coil spring inside, similar to a clockwork spring. Under its action, the clamp arm can be restored to its original position at any time.

Now let’s disassemble the car charger by opening the top cover, and remove the internal PCBA.

Close-up of the back of the PCBA.

Close-up of the front of the PCBA.

The Southchip SC8103 synchronous rectified buck converter decompresses the input to power the car mount wireless charger.

Fitipower FT0e8K, protocol IC.

Common mode choke to suppress interference.

A 15μH chip inductor.

The wire loop inductor.

A chip output filter capacitor, 16V 220μF.

A 220μF electrolytic capacitor.

All the components.


III Conclusion


The Belkin Boost Up Charge Wireless Charging Vent Mount supports normal 5W, Apple 7.5W, and Samsung 10W wireless charging, offering great wireless charging compatibility. The structure design is firm and reliable, while the minimalistic aesthetic fits perfectly into almost every car interiors. However the built-in cable somehow limits its versatility.

On the inside, the Belkin uses solutions from ConvenientPower and Southchip to greatly reduce the number of components while maintaining high efficiency.


Pros:

10W max wireless charging.

High quality components.

Nice finish and reliable structure.


Cons:

Built-in cable.


Source: chongdiantou

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