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US 2014/0375130 A1Published application
Circuit, Use, and Method for Operating a Circuit
AssigneeAtmel Corporation
InventorsSven Jochmann, Lutz Dathe
Life of this patent
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AssigneeAtmel Corporation
InventorsSven Jochmann, Lutz Dathe
Estimating the term…
A circuit, use, and method for operating a circuit is provided that includes a regulated first voltage source for providing a supply voltage at an output of the first voltage source for a subcircuit, an adjustable second voltage source for providing an output voltage to supply the subcircuit, and an evaluation circuit, which is connected to an output of the second voltage source and to a control input of the second voltage source and to the output of the first voltage source. Wherein the evaluation circuit is formed to adjust the output voltage of the second voltage source by means of a control signal at the control input of the second voltage source with evaluation of the supply voltage at the output of the first voltage source, and wherein the evaluation circuit and/or the second voltage source have a memory for storing values of the adjustment.
A circuit comprising:
A method for operating a circuit in an operating mode and a sleep mode, the method comprising:
Use of a regulated first voltage source and an adjustable second voltage source for operating a subcircuit in an operating mode by a first voltage source and in a sleep mode by a second voltage source, wherein an output voltage of the second voltage source is adjusted during the operating mode as a function of a voltage at an output of the first voltage source and an output current is matched to a quiescent current of the second voltage source during the sleep mode.
Dependencies are inferred from the claim text.