programmable dc electronic load model 4700

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Programmable DC Electronic Loads

Model 4700 Electronic Loads

  • 8 sizes – 1 to 36 kW @ 120 or 600 V
  • High-resolution waveform capture for analysis of dynamic transients
  • 18 built-in, precision voltage, current, power and timing measurements that eliminate additional dedicated measurement instruments
  • Isolated digital inputs and outputs for test fixture support
  • PC/LAN control using LabVIEW & IVI drivers
  • Optional touch-panel user interface

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Applications

There are 2-types of programmable dc electronic loads in this general-purpose, medium-to-high-power electronic load family. The 4700 is a relatively low-voltage electronic load (120 V) with high current capability. The High-Voltage DC Electronic Load (4760 Series) is a high-voltage electronic load (600 V).

The High Current DC Electronic Loads (4700 Series) are used in a wide variety of applications that involve automated testing of power conversion device outputs to simulate real-world loading conditions. Such devices include DC power supplies, telecom rectifiers, and traction batteries.

Extended Internal Measurements

The High Current DC Electronic Loads eliminate the need for separate external instruments to capture timing and other dynamic measurements during UUT turn-on and turn-off. This is accomplished by incorporating the task-essential features of a DMM, DSO and Transient Generator. With this built-in capability, the 4700 DC Electronic Load can rapidly generate engineering-characterization-like test information at fast test speeds. An additional benefit is savings from fewer measurement instruments, switches and interconnection wiring.

Complex Load Profile Playback

To facilitate ease of re-creating complex, precisely timed, multi-mode load profiles, a 100-step macro-recording capability allows capturing a dynamic sequence for later playback from within the electronic load. Additional complex profiles can be stored in a system controller library for download to the electronic load when required.

Auto Mode

The High Current DC Electronic Load contains a unique Auto Mode that provides glitchless automatic switching between CR, CC, CV and CP limits. Previously challenging tests that are now made possible include turn-on into a CR load, confirming the complete V-I curve for Lithium-Ion battery chargers, and preventing device-under-test blowup should a protection circuit fail.

4700 Series DC Electronic Load Model Numbers

Model #4700-14700-24700-34700-64700-124700-184700-244700-36*
Power1 kW2 kW3 kW6 kW12 kW18 kW24 kW36 kW
Current200 A400 A600 A1200 A2400 A3600 A4800 A7200 A
Voltage120 V120 V120 V120 V120 V120 V120 V120 V
Model #4760-14760-24760-34760-64760-124760-184760-244760-36*
Power1 kW2 kW3 kW6 kW12 kW18 kW24 kW36 kW
Current50 A100 A150 A300 A600 A900 A1200 A1800 A
Voltage600 V600 V600 V600 V600 V600 V600 V600 V

NH Research, Inc. | 16601 Hale Avenue, Irvine, California 92606 USA | Phone: (949) 474-3900 | Email: sales@nhresearch.com