The Advantages and Disadvantages of Wireless Chargers
Compared to resonant charging, wireless chargers are more energy efficient. However, there are also some disadvantages to using this technology.
Unlike a conventional charger, a Qi standard wireless charger uses electromagnetic induction to transfer power. This method uses a small magnetic field that generates a voltage to induce an electric current in a receiver. This allows for short distance inductive charging.
Qi is a worldwide wireless charging standard that defines inductive charging. It was created by the Wireless Power Consortium. It is also backed by Nokia, Samsung, T-Mobile, and LG.
A Qi-certified wireless charger has passed the standard’s test requirements. It also comes with an eco-friendly resister, which prevents over-current and over-voltage.
In the past several years, there have been several wireless charging standards introduced. The two major standards include PowerMat by the AirFuel Alliance and Qi (pronounced “Chee”) by the Wireless Power Consortium.
Among the wireless charging standards in play is the Alliance for Wireless Power (A4WP) and the Wireless Power Consortium’s Qi. The latter has a strong backing from technology giants like Intel, Google, and Microsoft. While the A4WP has a strong membership in the industry, it’s not as well known.
The A4WP is actually a specification created by Samsung and Qualcomm. Originally, the standard’s main goal was to establish a technical standard for wireless power transmission. The A4WP has agreed to merge with the Power Matters Alliance. This will create a more comprehensive and industry-wide dialogue mechanism.
The A4WP has also gotten a few big names to join its ranks, including Samsung, Dell, and Google. AT&T has reportedly dropped the competition’s wireless charging standard from its mobile devices, leaving the field wide open for the A4WP.
Power Matters Alliance standard
Currently, there are two major wireless charging standards. They are the Qi and the Power Matters Alliance standard. These are supported by large technology companies.
The Qi wireless charging standard is backed by the Wireless Power Consortium. There are about 3,700 Qi-certified devices on the market. These are products that can deliver up to 5 to 15 watts of power. These devices also have the ability to provide stable DC voltage.
On the other hand, the Power Matters Alliance is pushing the PMA wireless charging standard. The PMA standard uses a 277 to 357 kHz band. Its technical specification allows for wireless charging to be used in a variety of applications.
Whether you want to add wireless charging to your mobile device or you want to make sure you’re getting the best wireless charging experience possible, you should consider the WPC standard for wireless chargers.
The WPC is a consortium of leading companies. It aims to make wireless power an easy and convenient option. It works by defining and promoting a single inductive charging standard called Qi.
The standard was developed by the WPC to enable wirelessly powered devices to charge from a charging station, without having to connect cables. It’s also a good way to keep your phone charged, if you’re on the go.
Another good thing about Qi is that it is fully compatible with magnetic resonance technologies. This technology is great for charging through most surfaces.
Qi chargers are more energy-efficient than resonant charging
Despite their claims of superior engineering, Qi wireless chargers are not directly competitive to resonant charging. However, the two standards are complementary.
The Qi standard allows users to charge portable electronic devices with a high efficiency. Inductive charging, on the other hand, is often limited to a short range. Inductive charging pads are typically finicky to align, and they need to be placed precisely.
Another competing wireless power standard is the Alliance For Wireless Power’s (A4WP) Rezence. A4WP calls it “the next generation of wireless power,” and it has been put into use by Order Furniture.
A4WP’s standard is based on resonance technology, which uses a magnetic field to transfer power. This is not as efficient as induction technology, but it does allow for more leed charging, or the ability to power several devices from one transmitter coil.
Disadvantages of wireless charging
Using wireless charging for your smartphone has several advantages over conventional methods. It also comes with a few drawbacks. However, in most cases, it is more than sufficient to keep your phone charged and ready for use.
The main advantage of using a wireless charger is the elimination of cords. This makes it a lot more convenient and safer to use in public. The corresponding drawback is that the wireless charging pad can’t be moved around easily. This makes it hard to charge your mobile device while you’re walking around, driving, or jogging.
The other main disadvantage of wireless charging is the fact that it takes much longer to charge your mobile phone than a wired charging station. The reason for this is that the air-core transformer used in wireless charging isn’t very efficient.