A **programmable power supply** is an electronic device that provides controlled and adjustable electrical power to a circuit or device. Unlike fixed power supplies, it allows users to set voltage, current, and sometimes power limits through software, digital interfaces, or manual controls. These power supplies are commonly used in testing, automation, and research applications where precise and repeatable power control is required. They often feature remote programmability via USB, Ethernet, or GPIB interfaces, making them ideal for integration into automated test setups.
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