VDC Power: What Is It?

VDC, or volts of direct current, is a term used in the field of electronics. A battery or the power supply of numerous electrical devices produce direct current.

Direct current moves in one direction and at a fixed pace. Typically, it is directed through conductors like wires. For delicate equipment like computers, direct current offers a stable voltage. On the varying voltage of alternating current, these gadgets would not operate correctly.

Alternating current is used in the majority of the world’s power grids. This necessitates a rectifying circuit that changes alternating current to direct current in the power sources of delicate devices. A sine wave represents the voltage and polarity of alternating electricity. The electrical system in the US alternates at a 60 hertz frequency.

Different components of the system are supplied by 3.3, 5, and 12 volts of direct electricity from desktop PC power supplies. On the bottom or back of the device, power supply for laptops and other compact electronics are tagged with their output in volts of direct current.

The side of each battery is labelled with the output in volts of direct current. When powering direct current equipment, it’s essential to make sure the polarity is right. The device might be ruined by the wrong polarity.

Misha Khatri
Misha Khatri is an emeritus professor in the University of Notre Dame's Department of Chemistry and Biochemistry. He graduated from Northern Illinois University with a BSc in Chemistry and Mathematics and a PhD in Physical Analytical Chemistry from the University of Utah.

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