2-in-1 architecture: bidirectional DC power supply and regenerative load
One-button switching between source and load modes
High-efficiency energy regeneration (up to 95%)
Wide operating range up to 1500 V and ±1020 A
Compact design: up to 12 kW in 2U form factor
Battery simulation with adjustable internal parameters
Dynamic test profiles with up to 10 million programmable points
Multiple protection functions (OVP, OCP, OPP, OTP, anti-islanding)
Battery charge/discharge testing and simulation
Electric vehicle component validation (DC-DC, OBC, power modules)
Renewable energy systems (PV, energy storage, inverters)
Industrial power electronics testing and validation
UPS and data center power system testing
R&D laboratories and automated test equipment (ATE) systems
Voltage Range: 10 – 1500 V
Current Range: -720 A to +1020 A
Power Range: ±12 kW
Operating Modes: CC, CV, CW, CR and combined modes
Regeneration Efficiency: up to 95%
Form Factor: 1U (6 kW), 2U (12 kW)
Parallel Operation: Master/slave expandable system
Interfaces: USB, LAN, CAN, Digital I/O (optional GPIB, RS232, Analog)
Standards (partial): LV123, LV148, ISO 16750-2, SAE J1113-11, LV124
The IT-M3900B Regenerative Power System is engineered for advanced power electronics testing where bidirectional energy flow, efficiency, and flexibility are critical. It integrates a DC power supply and regenerative load into a single platform, allowing engineers to switch between source and load modes instantly from the front panel.
This architecture directly addresses common challenges in battery testing, EV component validation, and renewable energy systems—reducing equipment footprint while improving test efficiency. With power regeneration up to 95%, the system feeds energy back to the grid instead of dissipating it as heat, significantly lowering operational costs related to electricity and cooling.
The wide operating range (10–1500 V, up to ±1020 A, ±12 kW) supports testing across multiple applications, including high-voltage automotive systems and energy storage devices. Built-in battery simulation capabilities allow users to replicate real-world charge/discharge behavior by configuring voltage, internal resistance, and state of charge.
Advanced features such as programmable dynamic profiles (up to 10 million points), multiple operating modes, and compliance with key automotive testing standards make the IT-M3900B suitable for validation labs and production environments.
AV-TEK Consulting supports system configuration, integration, and application-specific validation to ensure the solution aligns with your testing requirements and compliance objectives.






AV-TEK / Houston Office
4123 Hollister, Suite G
Houston, TX, 77080
AV-TEK / San Marcos Office
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