Electric vehicle charging V2G

Electric vehicle charging V2G

Queensland Semiconductor Technologies SiC devices qualify for the requirements of today's fast charging and V2G for electric automobiles.

In today's fast pace of life, the general public just don’t want to hang around, especially waiting for their car, van or truck to charge and then get on their way to the next destination.

Quests market leading homogeneous high voltage Schottky barrier diodes have been designed for today and more importantly tomorrow's era of electric transportation.

High-voltage fast charging systems are already using higher voltage as in the past couple of years 650V has been the norm now anything between 800v to 1200v is becoming more and more popular and Quest can already see the future and we already offer 1700V, 2200V, 3300V and 4500V SBD’s. SiC or silicon carbide technology has a high breakdown field strength, a low on-state resistance with off-state leakage current which are a requirement when it comes to electric vehicles.

This blog post will indicate the fast current charging advancements and trends of today’s electric vehicle market and the vehicle to grid applications or V2G as well as market leading solutions in SiC technology from Quest Semi.

Quotes high voltage charging technology capacity is improving vehicle charging efficiency and capacity. 

The general public has always been dubious of electric vehicles mainly due to the physiological barrier of it’s going to run out of range. The internal combustion engine has on average a maximum range of around  four hundred miles. Today vehicles whose range is in the 200-300 miles and more premium vehicles with a range of 400 miles.

With this increased range people still want a fast solution to charging so that's why 80% of the battery capacity needs to be charged within eleven to fifteen minutes. This demand can be achieved by using Quests power semiconductors with SiC Schottky diodes or SiC Mosfets the output required being obtained by increased voltage.


V2G energy efficiency and reduced global footprint.

Another very important trend is that some charger manufacturers are supporting so called V2G which stands for electric vehicles to the power grid. When the vehicle is not in use the energy left in the batteries can then be sold back to the grid, and thus when the batteries need to be charged the current flows from the grid back to the vehicle's batteries.