A closed-loop, wideband, 100A active load (PDF!) app note by Jim Williams of Linear Technology:
Digital systems, particularly microprocessors, furnish transient loads in the 100A range that a voltage regulator must service. Ideally, regulator output is invariant during a load transient. In practice, some variation is encountered and becomes problematic if allowable operating voltage tolerances are exceeded. 100A load steps, characteristic of microprocessors, exacerbate this issue, necessitating testing the regulator and associated components under such transient loading conditions. To meet this need, a closed-loop, 500kHz bandwidth, linearly responding, 100A capacity active load is described below.
Study of this approach is prefixed by a brief review of conventional test load types and noting their shortcomings1.
Whats up with the last page? Who is Lord Acton?!
What is Google?
well, google did not help. Neither did coffee.
Mm okay. Try seaching for John Dalberg-Acton then. The famous phrase “Power corrupts. Absolute power corrupts absolutely.” (or so it goes) is attributed to him. Remember the hand-written title of the figure on the last page (which is a copy of Figure 7, btw)? It is a light-hearted play on this phrase. Shouldn’t be too hard to figure out why Mr. Williams wanted to apologize to Lord Acton ;)
Totally unrelated, but coffee is an excellent idea! :)