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National Instruments PXIe-4051 PXI Electronic Load Module

The PXIe-4051 (Part Numbers: 788179-01, 788197-01) made by National Instruments is a sturdy PXI electronic load module with one channel that is specifically designed for DC power supply characterisation, design validation, and production testing. It provides an adaptable solution for a broad range of test scenarios due to its high voltage and current handling capabilities. Capable of absorbing up to 300W of power from the source under test, this module, rated at 60V and 40A, easily handles high-power testing needs.

Users may customize load parameters to meet specific test needs using its programmable load modes, which include constant voltage, current, resistance, and power levels. This allows for the simulation of a variety of load scenarios. In a variety of application contexts, this versatility guarantees excellent performance.

The PXIe-4051 streamlines test system design by seamlessly integrating into PXI setups, eliminating the need for mixing multiple instrumentation form factors. This integration not only simplifies system synchronization but also reduces complexity and cost by eliminating the tedious process of integrating disparate instruments separately. This module also has outstanding synchronization capabilities, which are important in complicated test situations where numerous electronic load modules need to cooperate to mimic complex load circumstances. Test results are guaranteed to be accurate and reliable when precisely synchronized with other PXI modules.

The PXIe-4051 has a typical resolution of 30 mV and an accuracy of ±6%. PXI Express power takes 1.5A from the 3.3V rail and 3A from the 12V rail. Current ranges from 4A to 40A, and operating voltages from 6V to 60V. It has a typical minimum force resistance (Rmin) of 12.5mΩ and a minimum operating voltage (Vmin) of 500mV at 40A. In order to ensure safe operation, the module notably includes a number of protective features, such as automatic shutdown for overheating, overpower, and overcurrent occurrences.

To further assist in meeting exact testing requirements, the PXIe-4051 provides customizable slew rates for constant current mode. In order to guarantee precise and stable functioning within designated time limits, users must take into account the programmed gain bandwidth and system constraints while setting slew rates.