Recently, the charging head network industry learned that Apple has released the latest watch fast charging module, the Watch Fast Charger Module. This module adopts a separate design, with the power part and coil separated, and uses a USB C interface to support wireless fast charging of Apple Watch Series 7 watches.

Currently, Apple has started sending samples to MFi companies, and many authorized Apple partner brands will soon launch new products based on this module, such as third-party watch wireless charging and multi in one wireless charging.

The Apple Watch is an extension of the functionality of Apple phones, supporting multiple health detection functions that the phone does not support. The built-in multiple sensors can provide users with functions such as health monitoring and exercise monitoring, providing functional extensions for mobile phones, and are very popular among consumers.

The Apple watch uses lithium batteries as its internal energy supply. Considering the lifespan and reliability of wearable devices, Apple has designed wireless charging for the watch and has been in use to this day.

Wireless charging can achieve high sealing of watches, and the contactless charging design can prevent sweat from corroding the contacts and affecting normal charging. The contactless design further enhances the aesthetics of the watch and makes it more convenient to use.

The launch of MagSafe magnetic suction wireless charging has changed the usage habits of wireless charging. By automatically aligning the wireless charger with the device through magnetic force, efficient wireless charging can be achieved without the need to align the charger with the device. This ensures reliable adsorption and eliminates the hassle of repeatedly confirming the position. The magnetic suction structure has accurate alignment and higher charging efficiency.

The new Apple Watch Series 7 watch released by Apple in the autumn of 2021 still features contactless wireless charging. The watch has an 18 hour battery life, which not only increases the screen display area, but also incorporates USB C fast wireless charging. Compared to the previous one, the charging speed has increased by 33%, and it can be charged from 0 to 80% in 45 minutes, greatly improving the charging experience.

According to the introduction on Apple's official website, the entire charging system of the Apple Watch Series 7 has been redesigned to charge faster, allowing you to take action faster. With the upgraded charging architecture and a USB C fast charging cable, the battery can be charged from zero to 80% in about 45 minutes. Compared to the Series 6, the charging speed is up to 33% faster, and sleep tracking for eight hours only requires 8 minutes of charging.

Apple's watch fast charging magnetic suction charger adopts a USB C interface. Due to the separate design similar to the MagSafe magnetic suction wireless charging on the iPhone, the circuit part is separated from the coil, and the USB C plug is much larger than the plug of the phone's data cable.

Industry insiders have revealed to Charging Head Network that the Watch Fast Charger Module, a USB C wireless charging solution used by Apple watches, differs from traditional USB A solutions by adopting a design that separates the induction coil from the control module. Apple provides control modules and induction coil modules for MFi enterprises to purchase and produce.

From the schematic diagram, it can be seen that the control module adopts double-sided components with power input and output pads, making it easy for MFi enterprises to produce.

Belkin introduced a three in one magnetic wireless charging board WIZ016, which uses Apple's wireless fast charging module and supports Apple iWatch S7 fast charging. It is the only all-in-one wireless charging board in the market that supports fast charging of watches.

The picture shows the USb-c wireless charging scheme used inside the Belkin three in one magnetic wireless charging board. The circuit board of the corresponding module is hollowed out, and the front and back of the module are covered with metal shielding covers. The module mainly consists of a wireless charging master microcontroller and a MOS transistor driver.

On the other side of the module are converters for power supply, corresponding resonant capacitors, and wireless charging switch tubes. The top pad of the circuit board is used for power supply, and the bottom is for coil output. It is connected to the induction coil module through wires to achieve wireless charging.

The wireless charging coil on the watch end is the same as the original magnetic suction wireless charging of the Apple Watch Series 7, and both adopt a structural design of wire welding connection to the coil. By using a design that separates the coil from the wireless charging module, the accumulation of heat is avoided, thereby improving temperature rise and enhancing the user experience.

Wireless charging combined with magnetic suction is a novel solution. The biggest change is that there is no longer a need to align the coil, resulting in higher charging efficiency. Apple has also launched two MagSafe wireless charging modules for the iPhone magnetic suction wireless charging application. One of them is a faceless design that can completely hide the module in the product, maintaining consistency in product appearance and improving product design flexibility.

Another MagSafe wireless charging module adopts a magnetic enhanced design, which can make the adsorption between the mobile phone and the wireless charger closer, meeting the design of wireless charging mobile power supply and car holder products. The mobile phone is firmly adsorbed and not easy to fall off.

summary

The updated Apple Watch Series 7 watch from Apple features a larger display area and upgraded interactive interface, as well as support for USB C fast charging and wireless charging, enhancing the watch's user experience and further providing functional expansion for the iPhone. Apple's newly launched watch fast charging module adopts a USB C interface, which is more in line with the ecology of modern USB C popularization.

The new fast charging module for watches adopts a combination of control module and induction coil module, which separates the heating part and reduces local temperature rise, providing consumers with a better charging experience. At that time, the large-scale application of Apple's magnetic charging module will enable MFi manufacturers to bring more magnetic charging products and enrich consumers' personalized choices.

Source: Charging head network