The NI PXIe-4154 is a 2-channel programmable power supply module for battery simulation and characterization in PXI Express systems. It delivers high-accuracy sourcing and measurement for component, battery, and LED testing across aerospace, automotive, and consumer electronics applications. Channel 0 operates as a battery simulator with 0–6 V output and up to 3 A sourcing; Channel 1 functions as a charger simulator with 0–8 V output and up to 1.5 A sourcing. Both channels support two-quadrant operation (source/sink) with ultrafast transient response below 20 µs and recovery to ±20 mV within 45 µs. The module replicates real-world battery behavior including internal resistance, transient dynamics, and load-dependent voltage sag.
Technical Specifications
Form Factor & Physical
• 3U, two-slot PXI Express/CompactPCI Express module
• Dimensions: 4.0 cm × 13.0 cm × 21.6 cm
• Internally powered
Channel 0 — Battery Simulator
• DC Voltage Range: 0 V to +6 V
• DC Current Source: Up to 3 A
• DC Current Sink: 3.1 A (typical)
• Maximum Output Power: 18 W
• Programmable Output Resistance: Available for internal resistance simulation
• Transient Response: <20 µs; settles to ±20 mV within 45 µs (typical)
Channel 1 — Charger Simulator
• DC Voltage Range: 0 V to +8 V
• DC Current Source: Up to 1.5 A
• DC Current Sink: 0.1 A (typical)
• Maximum Output Power: 12 W
Combined System
• Total Maximum Output Power: 30 W
• Combined Maximum Current Limit: 3.1 A
• Quadrant Operation: Two-quadrant (source/sink)
Measurement Capabilities
• Current Sensitivity: Down to 1 µA
• Voltage and Current Readback: Both channels
• Continuous Acquisition Rate: Up to 200 kS/s
• Measurement Resolution: 16-bit ADCs
• Noise Performance: <2 mV RMS typical into resistive load (20 Hz to 20 MHz)
– Key Features
• Isolated dual channels optimized for battery and charger emulation
• Two selectable transient response speeds for load-switching optimization
• Load regulation: 1 mV max per amp with remote sense; 0.01% of range per volt
• Voltage Programming Accuracy (Channel 0, +6 V range): ±0.04% + 5 mV (nominal)
• Measurement averaging available for noise reduction
– Typical Applications
• Battery pack characterization and validation
• Lithium-ion cell emulation in ECU testing
• LED driver and power management IC testing
• Automated test systems in aerospace and automotive sectors
– Compatibility & Integration
The module integrates into NI PXI Express chassis for modular test architecture. Part numbers: 781155-01, 195709C-01L.
