What is a DC power supply?

A DC power supply is a device that provides direct current (DC) electricity, delivering a stable voltage and current to electronic circuits and devices. Common sources include batteries, dry cells, and AC adapters that convert alternating current to DC. DC power supplies are essential in applications such as testing instruments, control systems, and other sensitive electronic equipment, where low noise and high stability are required. Laboratory DC power supplies often feature adjustable voltage and current, making them ideal for R&D, education, and repair work.

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