Modular, Benchtop DC Electronic Loads 120V, 600V
If you’re looking for a DC electronic load with high current and low voltages, or low current and high voltages, NH Research (NHR) has a range of options. NHR’s DC Electronic Loads are ideal for testing medium-to-high-power applications in all markets.
All of NHR’s DC electronic loads provide ultra-fast transient simulations and comprehensive measurements to accurately test real-world conditions. The 4700 DC Load (120V) is well-suited for low voltage and high current applications whereas the 4670 DC Load (600V) is ideal for high power applications. The 4300 Series DC Loads are ideal for lower power, multi-channel testing and 9300/9200 NHR’s Regenerative DC Loads offer increased energy savings and additional bi-directional capability.
4700/4760 Benchtop DC Loads
In this article, we’ll share details specifically on the benefits of the 4700/4760 benchtop DC loads. This series can be used as part of an automatic test station or as a stand-alone, bench-top set-up. Our modular, flexible test equipment has the accuracy, reliability, and speed required for applications such as DC converters, avionics, fuel cells and batteries, EV components, radar testing, power supplies and much more.
With a large user-friendly interface, test engineers can easily use this equipment for engineering characterization and test program development. It can be operated manually through the touch-panel, or automated. Automated testing may be PC-controlled either through NH Research’s emPower™ test executive or user-written test programs in LabVIEW, LabWindows/CVI or in any programming language which supports IVI Drivers.
Create Complex, Fast-Transient Load Profiles
NHR’s DC Electronic Loads (4700/4760) are capable of creating a wide variety of complex dynamic load profiles. Types of profiles include micro-second pulses, multiple pulses of varying width, stepped responses, variable slew rates and even simulating an AC component on the DC waveform.
The key to this capability is called a Macro, each of which contains up to 100 steps and is executed directly by the load to achieve the fastest possible transition speed. Once created, Macros can be stored in the system controller for downloading to the load when execution is required.
Scalable Power, Wide Operating Envelope
Easily add power modules scale power and meet new testing demands over time. For added flexibility, NHR’s dc electronic loads also have a wide operating envelope to provide rated power anywhere between 5V and 120V. Below 5V the load maintains full current capability down to 1V and then linearly reduced current down to 0.15V.
- ATE Testing: Radar Power Testing, Aviation, Power Supply, Solar Panel
- Power Devices: Chargers, Adapters, DC Supplies, LED drivers, Telecom Rectifiers
- Fuel Cells/Super Capacitor Test
- Power Conversion
- EV Subsystem Test: OBC, V2G, APM, DC/DC Converter
- Ideal for Fast Transients, Ultra-low Voltage Loading (down to .01 VDC)