A Simple Comparison Between Wireless Charging and Wired Charging

A Simple Comparison Between Wireless Charging and Wired Charging

The rapid development of consumer electronics in recent years and the demand for insufficient battery life have greatly stimulated the development of wireless charging technology. Now, there are more and more electronic products on the market that support the use of wireless chargers. So, compared with traditional wired chargers, apart from the cables, what else are the differences between wireless chargers and wired chargers? Let's follow the editor to take a look at a comparison between wireless and wired charging.

1. Charging efficiency: Under the same charging time and conditions, the battery charger with a cable connection can charge the battery to 95% of its capacity, while the wireless charger with the latest technology can only reach 90%. The "fast charging" function of charging for five minutes and being able to talk for two hours can increase the phone's battery level to over 70% within half an hour. Although the speed of wireless charging has improved, it is obvious that the charging efficiency of wired charging is much faster and more efficient than that of wireless charging. There is still a gap in charging efficiency between wired and wireless chargers, and there is still room for further improvement in technology.

2. Convenience: The advantage of wireless chargers lies in the fact that they eliminate the need for charging cables, allowing charging within a certain range. However, the drawback of wired chargers is that they require being connected to a charging cable for charging, and once the charging cable is unplugged, charging becomes impossible.

3. Physical damage: Electronic products using wireless chargers eliminate the problem of interface damage, and at the same time reduce the exposure of the charging ports, thereby lowering the possibility of dust and liquids penetrating. However, with wired charging, as the usage time increases, there is a potential risk of poor contact at the data interface.

4. Universality: With the rapid development of smart products, more and more charging devices are being used. Smart bracelets, smart watches, mobile phones, tablets, razors... These products with various functions and different models basically cannot be charged using the same charger. The advantage of wireless chargers lies in their universal nature, which allows for the sharing of a single wireless charger. In the future, it is possible that only one wireless charging base in the home will be sufficient to charge all appliances and smart terminals.

5. Cost: Wireless charging is a device that charges using the principle of electromagnetic wave induction. Energy is coupled through coils to achieve energy transmission, similar to a transformer (which has a primary coil and a secondary coil). There is a coil at each transmitting and receiving end. The transmitting end coil is connected to an external power source to generate an electromagnetic signal, and the receiving end coil senses the electromagnetic signal from the transmitting end, thereby generating current to charge the battery. Energy is coupled through coils to achieve energy transmission, so the composition and structure are relatively complex and the cost is relatively high. A wired charger only requires a stable power supply along with necessary control circuits such as constant current, voltage limiting, and time limit to form, and the cost is extremely low.

Compared with the traditional wired charging method, wireless charging technology can break the constraints of usage and space, bringing numerous conveniences to daily life. With the continuous innovation and improvement of technology, the time when wireless chargers can fully demonstrate their capabilities is not far away.

The future belongs to wireless charging.