AC vs DC charging Methods for Electric Vehicles: Which is Better?
An electric vehicle (EV) is a motor vehicle that has a rechargeable battery and uses electrical power for propulsion. This includes EVs with both front-wheel drive and four-wheel drive configurations, and it refers to both highway-capable cars as well as buses, trucks, recreational vehicles, trains, and even boats. With the proliferation of EV vehicles in recent years due to declining oil prices and government mandates to reduce pollution levels in the air we breathe, the water we drink, the food we eat – they are becoming an increasingly common sight.
If you’re considering buying an electric vehicle, you may have heard of the AC vs DC charging debate. This post will compare the two common charging methods and provide helpful information on which one is best for your needs.
Electric vehicles are becoming a more popular choice for both drivers and manufacturers alike. With tighter emissions standards and advances in battery technology, electric vehicles are quickly surpassing their gas-powered counterparts in both efficiency and popularity.
Even with the growing popularity of electric vehicles, there remains a debate surrounding their charging methods. The two most common methods are alternating current (AC) and direct current (DC). It is important to understand the advantages and disadvantages of both as you weigh your charging options.
Why Is DC Charging Preferred?
Direct current (DC) charging is the most common method used today for electric vehicles. Using this method, electricity is sent from the power source to a special cable installed on your vehicle. The cable uses electromagnetic induction to transfer the electricity to the vehicle’s batteries.
Compared to traditional AC charging, there are several advantages to using DC charging. For example, this method has been proven to be more efficient because energy can be transferred without converting it into heat. Also, since it is a direct current, the voltage can be supplied directly from the power source without additional components or wires required.
Limitations
On the other hand, several disadvantages exist with AC charging methods. There are two types of AC charging methods: synchronous and asynchronous.
Synchronous Charging
In synchronous charging, electricity is delivered at the same rate as you charge your vehicle. This means that when you’re driving, you can continue charging your car with minimum interruption to your trip. However, it’s not a very efficient method of driving because the system must be able to send electricity back to the power source at the same rate as you’re using it.
Asynchronous Charging
Asynchronous charging is similar to synchronous charging, except that it is produced at a higher voltage. This voltage is then reduced via a transformer before leading to the vehicle’s battery. However, this method can cause problems because the power source and vehicle need to be able to handle high voltage surges. In addition, your car’s charging circuit must be able to produce electricity at very high rates.
Conclusion
It should be noted that both AC and DC charging is more efficient than traditional gasoline-fueled vehicles. However, there is still a lot of controversy surrounding their advantages and disadvantages.
