EA-PSB 11500-20 3U Programmable Bidirectional DC Power Supply 10kW 1500V 20A

The EA-PSB 11500-20 3U, part of the PSB 10000 series, is a programmable bidirectional DC power supply that integrates both a DC power source and an electronic load into a single 3U 19-inch rack-mountable unit. Designed for high-voltage applications, it delivers an output voltage from 0 to 1500 V, current from 0 to 20 A, and power from 0 to 10 kW. With energy recovery efficiency up to 95.5%, it feeds back DC energy to the local grid when operating as a load, significantly reducing energy costs in test systems. Full rated power is available at 380–480 V three-phase AC input; derated to 6 kW at 208 V. It features precise regulation with load regulation CV ≤0.05% FS and low ripple ≤400 mV rms, ensuring stable and clean output for sensitive devices. The integrated function generator supports sine, triangle, rectangle, arbitrary waveforms, and specialized profiles such as DIN 40839 for automotive engine start simulation, PV simulation per EN 50530, battery charge/discharge tests, MPP tracking, and fuel cell simulation. Protection features include adjustable OVP, OCP, OPP, and overtemperature shutdown. Built-in USB, Ethernet, and galvanically isolated analog interface enable flexible remote control, with optional plug-in modules for CAN, CANopen, RS232, Profibus, Profinet, ModBus TCP, or EtherCAT. Up to 64 units can be paralleled in master-slave configuration for higher power systems. Typical applications include photovoltaic inverter testing, battery testing, fuel cell development, automotive electronics, and industrial high-voltage power systems.

Key Features

• Bidirectional Power & Energy Recovery: Seamlessly switches between source and sink modes, recovering up to 95.5% of energy back to the grid when operating as an electronic load, reducing overall energy costs.
• High Performance & Precision: Outputs 0–1500 V, 0–20 A, 0–10 kW with exceptional load regulation (CV ≤0.05% FS, CC ≤0.1% FS) and low ripple (≤400 mV rms, ≤2400 mV pp), ensuring reliable testing.
• Versatile Function Generator: Built-in arbitrary waveform generator with 99 sequence points, plus predefined curves for PV (EN 50530), battery testing, MPP tracking, DIN 40839, and fuel cell simulation, enabling complex real-world scenarios.
• Comprehensive Protection & Safety: Adjustable OVP, OCP, OPP, and overtemperature protection safeguard both the device and connected equipment; reinforced insulation up to 3750 Vrms AC input to DC output.
• Flexible Connectivity: Standard USB, Ethernet (with web interface), and isolated analog interface (0–5 V/0–10 V) for remote control; optional fieldbus modules (Profibus, Profinet, EtherCAT, CAN, etc.) for easy system integration.
• Scalable Parallel Operation: Supports master-slave parallel connection of up to 64 units via Share BUS and digital bus, increasing total power up to 960 kW with true current sharing.
• Intuitive Touch Panel: 5" color TFT touchscreen with capacitive technology, rotary knobs for direct adjustment, and USB host for data logging and waveform import/export.