Models 9110 and 9111 are a new type of power supply. Unlike conventionalpower supplies with fixed output ratings, they automatically recalculatevoltage and current limits for each setting, providing any Volt/Ampcombination within the rated power. By providing greatly expanded choicesof maximum power Volt/Amp combinations, users can cut down on thenumber of power supplies required and free up valuable bench space.The multi-ranging feature offers exceptional flexibility by providing anycombination of the rated voltage and current up to the maximum outputpower of the supply. For example, when setting the voltage on the 180 Wmodel 9111 to a maximum of 60 V, the power supply can generate amaximum current of 180 W/60 V = 3 A. For a 22.5 V setting, the maximumcurrent can be increased to 8 A. All Volt/Amp combinations that lie on thehyperbolic curve between these settings are also possible up to 180 W.