This document describes a closed-loop, wideband, 100A active load that can convert digital system transient loads into a controlled speed.
The document details the design of an electronic load capable of handling 100A transients with a bandwidth up to 540kHz. It contrasts this closed-loop approach with conventional switched-load methods, highlighting limitations in linear control and waveform purity found in traditional designs.
The text provides a conceptual overview followed by detailed circuitry discussion, including the roles of specific components like the control amplifier (A1), gate drive stage, and dissipation limiter. It also covers circuit testing procedures, emphasizing the importance of low-inductance layout and proper trimming to achieve optimal performance.
The circuit achieves a rise time corresponding to approximately 540kHz bandwidth.
The device has a 100A capacity.