wireless charging
Cindy
2022-02-17 13:49:49
The wireless charger is a device that uses the principle of electromagnetic induction for charging. signal and convert the electromagnetic signal into electric current, so as to achieve the purpose of wireless charging. Wireless charging technology is a special power supply method that does not require a power cord, relies on electromagnetic wave propagation, and then converts the electromagnetic wave energy into electrical energy, and finally realizes wireless charging.
Way of working
Electromagnetic induction
This is how the most common wireless charger works. It uses the principle of electromagnetic induction to generate current through the electromagnetic induction between the primary and secondary coils, so as to realize the transfer of energy in the space; The implementation has been promoted by the Wireless Power Consortium. [
radio waves
Radio waves are a relatively mature wireless charging method for wireless chargers at this stage. Its working principle is to use a miniature high-efficiency receiving circuit to capture radio waves in space, and then convert electromagnetic energy into stable electrical energy. There are already companies claiming that they can wirelessly charge electronic devices smaller than a cell phone from a few meters away.
Electromagnetic resonance
This is a wireless charging technology that is still in the research and development stage. This technology is mainly researched by a team led by a physics professor at the Massachusetts Institute of Technology. Based on this technology, Intel engineers have achieved a distance of about 1 A meter or so lights up a 60-watt bulb with 75% transmission efficiency. Intel engineers said the next goal will be to use this wireless charging technology to charge modified laptops. However, in order to achieve this goal, it is also necessary to solve the interference and influence of electromagnetic fields on other components in the computer.
Way of working
Electromagnetic induction
This is how the most common wireless charger works. It uses the principle of electromagnetic induction to generate current through the electromagnetic induction between the primary and secondary coils, so as to realize the transfer of energy in the space; The implementation has been promoted by the Wireless Power Consortium. [
radio waves
Radio waves are a relatively mature wireless charging method for wireless chargers at this stage. Its working principle is to use a miniature high-efficiency receiving circuit to capture radio waves in space, and then convert electromagnetic energy into stable electrical energy. There are already companies claiming that they can wirelessly charge electronic devices smaller than a cell phone from a few meters away.
Electromagnetic resonance
This is a wireless charging technology that is still in the research and development stage. This technology is mainly researched by a team led by a physics professor at the Massachusetts Institute of Technology. Based on this technology, Intel engineers have achieved a distance of about 1 A meter or so lights up a 60-watt bulb with 75% transmission efficiency. Intel engineers said the next goal will be to use this wireless charging technology to charge modified laptops. However, in order to achieve this goal, it is also necessary to solve the interference and influence of electromagnetic fields on other components in the computer.
