Author name: Jonathon C Woo

AC/DC load simulation has thus emerged as an essential technology in modern power electronics. These simulators provide engineers with dynamic, composite, and repeatable AC or DC loads, supporting constant current (CC), constant voltage (CV), constant power (CP), and dynamic load modes. Combined with advanced digital control, PWM, real-time feedback algorithms, and automated test software, they bring unprecedented flexibility, efficiency, and data reliability to engineering teams.

Programmable impedance in an AC source refers to the ability to adjust the output impedance—the opposition to current flow—in an alternating current circuit. This feature is crucial for power testing equipment because it allows engineers and technicians to simulate various electrical environments and test device performance under diverse load conditions.