Like the battery powering your kid’s remote control car, the smooth, steady electrical current of DC power always flows in the same direction, between positive and negative terminals.
The consistent and constant voltage of DC power supplies electronics that use a battery, such as your mobile device or smartphone. In your home it is eaten by corded appliances small and large, from your HVAC to your TV and dishwasher.
Your home or office receives electricity in the form of wave-like AC current, which is capable of changing direction and voltage from higher to lower current with the aid of transformers. What are your appliances and electronics eating? While both AC and DC current deliver electricity, the way in which that electricity arrives at its end destination differs. Why? Application Powers the Need for AC vs DC Current However, in recent years, DC has seen a bit of a renaissance.
In the end George Westinghouse partnered with Tesla, leading AC into American homes nationwide. The “War of the Currents” ensued as the inventors battled for relevance (and royalties) in the future of America’s electrical infrastructure. Alternating and reversing direction 60 times per second (50 in Europe), AC current could be converted to different voltages more easily using a transformer.
Unfortunately, its inability to be easily converted into higher/lower voltages led others to look to alternative solutions: Namely Nikola Tesla’s AC current. The Differences in AC Current vs DC Currentĭirect current, developed by Thomas Edison and the standard of America’s early foray into the world of electricity, involves the use of current that runs in a single direction. However, the two appear to be more recently coming together to exist in harmony. Due to their ability to provide power in different ways, AC and DC power have long been embroiled in a battle for supremacy.
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