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Wireless charging vehicle will initiate BMS precision diverter technology revolution

BMS precision diverter technology is widely used and very mature in new energy vehicles. At present, new energy vehicles are vigorously promoted by governments around the world, and the technological reform of new energy vehicles is constantly upgraded. BMS precision diverter is one of the main areas of competition for many new energy vehicles. Whoever has the more advanced BMS vehicle management system will be able to obtain a broader market in the field of automobile competition. Now the arrival of wireless charging new energy vehicle technology will set off a BMS precision diverter technology revolution

Wireless charging vehicle will initiate BMS precision diverter technology revolution(图1)

Today, the world is turning to electric vehicles to reduce pollutant emissions from non-renewable fossil fuel vehicles and provide alternatives to expensive fuels for transportation. As a result, suppliers, including Microhm Electronics, are increasingly offering shunt resistors and other current-sensing resistors for electric vehicles. However, for electric vehicles, driving range and charging process are the two main problems affecting their adoption compared with traditional vehicles.

With the introduction of wire charging technology, instead of waiting for hours at a charging station, electric vehicles can now be charged by parking in a parking space, parking in a garage, or even while driving. By now, we're pretty familiar with transmitting data, audio, and video signals wirelessly, so why can't we transmit energy through the air?

Thanks to the infinite wonders of the great scientist Nikola Tesla, wireless power transmission is one of them. In 1891, he began his experiments with wireless power transmission and developed the Tesla coil. In 1901, with the primary goal of developing a new wireless power transmission system, Tesla began developing Wordencliffe Tower for a large high-voltage wireless energy transmission station. The saddest part was that the tower was blown up and scrapped on July 4, 1917, in order to pay off Tesla's debts

Wireless charging vehicle will initiate BMS precision diverter technology revolution(图2)

The basic principle of wireless charging is the same as how transformers work. In wireless charging there is a transmitter and receiver, the 220 50 hz AC power supply is converted into high frequency AC power and the high frequency AC supply to the transmitting coil, and then the receiving coil generates an alternating magnetic field, which leads to the production of AC power output in the receiving coil. But the most important thing for effective wireless charging is to maintain the resonant frequency between the transmitter and receiver. In order to maintain the resonant frequency, a compensation network is added to both sides. Finally, the AC power on the receiving side is rectified to DC and fed to the battery through the battery management system (BMS), and a parallel resistor like the Microhm Electronics MMS8420 is usually seen.

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