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Dismantling Report: Meizu Wireless Charger

via:充电头网     time:2018/6/26 14:34:58     readed:164

First, Meizu wireless charger out of the box

Meizu wireless charger packaging is very simple, in the middle of the white paper box for the product map, the top with a hanging ring, convenient offline store sales.

The main features of the back of the product are: 1) The effective distance is large, and the mobile phone is shell-rechargeable; 2) The FOD metal foreign object is identified and used more safely; 3) The wireless power is supported at 10W/7.5W/5W and below; 4) The smartphone is compatible with iOS/ Android.

And main specifications parameters: Product model: WP01; Input: 5V/2A, 9V/1.6A; Material: TPU + PC / ABS + zinc alloy; Line length: 1m.

Open the carton. The contents of the package include: wireless charger and instructions. The product adopts round shape design, one-handed size, small and exquisite. The product adopts one-piece design, and the body and charging line cannot be separated.

Meizu wireless charger front surface with a non-slip leather TPU soft surface, the phone is not easy to slide when charging.

Zinc alloy bottom shell, showing CD radial texture, first-rate perception. Bring cool metal texture, excellent heat dissipation, efficient charging and more safety.

Second, Meizu wireless charger dismantling

The product adopts a buckle structure and can be opened using a crowbar along the edge.

The front cover can be opened without damage.

The middle is a wireless charging coil. The PCB board is in the shape of a semicircle and is distributed around the coil.

A temperature probe is placed directly on the coil for temperature measurement.

WP80027E, from Yi Chong Wireless, is a master controller IC for WPC-compliant wireless power transmitter systems that complies with WPC specification 1.2. When operating in WPC compatibility mode, the WP80027E-based wireless power transmitter supports up to 10W of power. Using an external oscillator, the WP80027E guarantees the frequency accuracy of the PWM to ensureiPhoneThe 8/8P/X reliably enters the 7.5W fast charge. The WP80027E-based wireless charger has many protection features: Programmable under fault conditions, FOD foreign object detection, programmable overcurrent protection and programmable overvoltage/overtemperature protection. WP80027E main parameters: support Qi-BPP 5W, Apple 7.5W, Samsung 10W wireless charging; input voltage 5V/9V, support AFC/QC 2.0; efficiency up to 70% -82% @ 10W; charging distance 3-8mm; /FCC/Qi-BPP; Supports over-temperature, over-current, over-voltage, and FOD protection.

Texas Instruments LM324 operational amplifier.

Crystal, 16.000MHZ.

Equipped with 4 NPO capacitors.

2512 size chip resistor, 44.2 ohms.

The MOS of the drive coil, the four sigma VS3618AE, and the two peaks FD2105M.

Third, charge head net dismantling summary

Previously we dismantled the Meizu POP Bluetooth wireless sports headset, using the Rx chip of Yi Chong Wireless. As a supporting transmitter Meizu wireless charger, after dismantling, we found that it is also used in Yi Chong wireless chip program. Meizu two products use the same company's Tx, Rx chip program, the benefits of doing so naturally can bring better performance and compatibility. Meizu wireless charger, 99 yuan compatible 10W/7.5W/5W multiple modes, even if not bought with a headset, it is also very worthy of recommendation.

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