CORTEX Series
Regenerative AC Power Source
Bidirectional AC Platform for Input and Output Validation

The CORTEX Series Programmable AC Power Source (formerly PRE / PRE-20) is a rack-mount, modular AC power system with integrated source-load functionality for precision AC power testing. It supports AC input disturbance simulation, ultra-high-frequency operation up to 5 kHz, power HIL integration, and AC sinking mode for evaluating a DUT’s output stability, efficiency, and protection behavior. With high accuracy and fast dynamic response, CORTEX AC is well suited for laboratory test benches and electromagnetic-compatibility-related power testing applications.

Building on these capabilities, CORTEX AC features a high-bandwidth control architecture with fast transient response, enabling accurate replication of AC disturbances and dynamic load interactions. Fine output resolution, precise phase control, and arbitrary waveform programming ensure repeatable testing of voltage, frequency, and unbalanced conditions. Its modular rack-mount design scales from 22 kVA in 3U up to 220 kVA, making it an efficient solution for medium-power laboratory validation and compliance-oriented AC power testing.

Highlighted Features

• - Four-quadrant bidirectional source–load operation with automatic mode switching
• - Regenerative load architecture with energy feedback to the facility power network (up to 91% efficiency)
• - Small-signal bandwidth up to 5 kHz for fast AC disturbance and high-frequency behavior reproduction
• - Wide output range of 0–779 VAC (L-L) with accuracy of ±(0.01% + 0.05%) F.S.
• - Single- and three-phase phase-angle control with 0.1° resolution for unbalanced operation
• - Arbitrary waveform and harmonic synthesis up to the 100th order with 100 μs step resolution
• - High voltage slew rate up to 3 V/μs for rapid voltage variation testing
• - Optional DC and AC+DC composite output for hybrid and non-standard test profiles
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