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3 questions answered about power supplies

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.

What is a power supply circuit?
Power supply circuits are utilized in several electronic and electrical devices, and they are divided into different types depending on the power utilized to provide for devices or circuits.
For example, microcontroller-based circuits are usually 5V DC Regulated Power Supply (RPS) circuits. These are crafted using a method to change the power supply from 230V AC to 5V DC.
Here’s how the conversion from 230V AC to 12V DC happens:

A step-down transformer is utilized to convert the 230V AC into 12V
A bridge rectifier is employed to change AC power to DC power
A capacitor is utilized to filter the AC ripples and provide it to the voltage regulator
The voltage regulator regulates the voltage to 5V, and a blocking diode is utilized to take the pulsating waveform

Who needs power supplies?
Anybody using electricity will require power supplies. The type of supply you need depends on whether you use DC-DC converters or AC-DC converters and whether you need regulated or unregulated power. Additionally, it’s advisable to check your power supply’s efficiency as it can help cut down on costs.

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