A power supply is an electrical device used to provide electrical supply to electrical loads. For this, it converts the power from an electrical outlet into the requisite current, frequency, and voltage to offer the required load. Power supplies are also called electric power converters, and there are two types: AC and DC power supply. An electrical device may use either one of these based on its electric specifications. Here’s what you need to know about power supplies. What do power supplies do, and how do you choose one? Power supplies may have to alter the voltage and increase or decrease it, regulate the power, or convert power to direct current. Power supplies can also be connected in series to provide a higher voltage. The function helps you pick the right kind of power supply for your electrical needs, so consider the following things before choosing one: Ensure that the continuous wattage meets your requirements to avoid facing issues when your PC is running a full load. Don’t worry about using more power just because you’re buying a higher-rated power supply. A power supply loaded with additional features will cost you more than you probably need to spend, but choosing a device that doesn’t have the necessary features can damage the devices you power with it.

A power source should not be confused with a power supply. The source is the point of origin of the power or electricity you receive, usually a battery, an outlet, or a generator. Power supplies convert the power from the source into the correct voltage for output, so select one based on its function and your requirements. This article discusses the two main types of power supplies: AC and DC. Understanding the differences between the two and knowing when to use each one will help you make an informed decision while making a purchase. What is AC power supply? Alternating Current or AC power is the standard electricity format coming from outlets and gets the name from the waveform of the current. To comprehend the AC wave composition, you need to understand that electrical currents are produced by the movement of electrons. As the electrons in an AC wave move in a positive direction, the sinusoidal wave created by the current moves upward. On the other hand, the wave sees a downward drop when the electrons have a negative flow. These waves arise from the alternators installed at electrical power plants producing AC power. Inside the alternator, a wire loop continually rotates inside a magnetic field, creating waves of alternating current.