Does Wireless Charging Cause Damage?

The origin of wireless charging

MarinSoljačić, a professor of physics at MIT, first proposed wireless charging technology! More than a decade ago, his wife was always disgusted by the lack of power to the phone, which is very annoying.

But there are so many lines inside the wall. Why did the last distance not solve the problem? With curiosity, MarinSoljačić set out to solve this problem. In 2006, at 32, Dr MarinSoljačić was selected for this technology in the MIT Technology Review magazine TR35 (list of 35 inventors under 35 years old).

In 2007 he showed the world electricity transmission at a distance of two meters! But at that time, the conversion efficiency at a distance of 2 meters was only 40%, which also meant that 60% of the power was lost in transmission. However, the same year Soljačić founded WiTricity, whose power transmission efficiency has increased dramatically since then.

Electric praise technology from the Massachusetts Institute of Technology (MIT) in the United States, by the technology source licensing company WiTricity authorized transformation, joint application development, in the source of technology, the results of the transformation of similar enterprises ahead!

Is wireless charging harmful to cell phones

The principle of wireless charging is very simple. Many of you know the "electromagnetic induction" phenomenon, a magnetic field generated by the current after passing through the coil. The current wireless charger uses this principle called inductive coupling technology. This technology is through the magnetic field generated between the coils, the electrical energy of a circuit into This technology is a technology that converts the electrical energy of one circuit into electromagnetic energy delivered to another circuit.

So since it is a magnetic field, will it not damage the phone? This is a fallacy. The phone that supports wireless charging will also have a coil on the back of the phone to receive magnetic energy, and this electromagnetic induction can only affect the coil on the back of the phone, so there is no use of wireless charging will make the phone damaged.

Some people like it, but others feel wireless charging could be more convenient and faster. The EnergyPad wireless charger is equipped with a maximum of 10W wireless transmitting motion, which charges fast and without needing to align to a fixed location, i.e., put it on and charge. Therefore, while providing the convenience of free access without frequent plugging, it can also be as fast as wired charging.

Wireless charging reduces the use of data cables and makes the charging method free and safer. Although the current wireless charging still needs to be as unfettered as we expect, charging anywhere, anytime in the free space.

Is wireless charging harmful to the human body

The radiation that is harmful to the human body is mainly divided into two categories, one is high-frequency radiation, one is low-frequency radiation, and the radiation is divided into radiation intensity!

Among them, high-frequency radiation is between 800~3000MHz.

For example, the 150 ~ 1200MHz frequency band can penetrate the body more than 2cm to excite the body bio-current, causing the body heat balance imbalance;

Cell phones belong to high-frequency radiation, between 400 ~ 1000MHz, and low-frequency radiation, between 0 ~ 300Hz. The Iphone's insurance of WiFi's minimum frequency is set at 60Hz or less.

In the wireless charging device to electric zen, for example, electric zen Qi device specifications for 5v/2A/10w frequency of 50 ~ 60HZ, sweep the code to open the charging device after the electromagnetic waves only to the cell phone receiver side of the maximum 60Hz fast charging - 60Hz radiation, minimal.

Therefore, wireless charging radiation to the human body is negligible and can be used confidently!