Programmable DC Electronic Loads

4800 Series High Slew Rate Load

• Slew Rate to 300A/uS
• 200W/160 A
• 0.5 to 6.0V

Application

The 4800 Series Electronic Loads are designed for the testing of DC-DC Point-of-Load Converters (e.g., Power Pod VRMs) used on the latest generation of GHz processors. These loads emulate the specific processor power load, particularly fast transient current changes. NHR Model 430 DC-DC Converter Test System remotely controls up to six 4800 Loads. It is an ideal solution for automated engineering characterization or production testing of this new type of converter.

Tight Coupling

The 4800 Load is packaged in a compact 5" cube directly coupled to the converter-under-test through a minimal inductance connector. The Load must be specified with the appropriate connector to match the target processor interface. Through this immediate coupling, slew rates of up to 300 A/uS along with full current down to 0.5 V are achieved, thereby simulating what the processors demand of the converters. A separate Load would be required for each converter or converter output.

Versatile Capability

In addition to the programmable slew rates, currents, voltages and digital control, the 4800 Load accurately measures voltage, current and power. For instance, the increasingly important efficiency measurement can now be made to 0.01%. Setup and control is accomplished through an intuitive instrument soft-panel on the S430 Test System PC. With these features, the Load eclipses first-generation, manually controlled, fast slew loads by assuring faster, more accurate and repeatable converter performance measurements.

Flexible Test System Configuration And Control

Controlling the 4800 Load is the S430 Converter Test System, a full capability ATE with a powerful Test Exexutive, network-ready with an SPC analysis package. With this flexible test platform, a variety of stimulus and load configurations are possible to address everything from single unit engineering characterization to multiple unit production testing.

NH Research Products-Power Supply Test Systems & Electronic Loads

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