Patent ID: 8378449

Claim:
A circuit arrangement for supplying electrical power to an integrated circuit, said circuit arrangement comprising: a circuit carrier; a circuit carrier ground provided on said circuit carrier; an integrated circuit adapted to operate at a nominal clock frequency, wherein said integrated circuit is mounted on said circuit carrier, and wherein said integrated circuit includes a circuit load that is to be supplied with electrical power, at least one power supply terminal that is electrically connected to said circuit load, and a plurality of electrically interconnected ground terminals that are electrically connected to said circuit load; a grounding conductor that electrically connects at least one of said ground terminals of said integrated circuit with said circuit carrier ground on said circuit carrier, wherein said grounding conductor exclusively provides the only electrically conductive connection between said ground terminals of said integrated circuit and said circuit carrier ground on said circuit carrier; a power supply unit adapted to be operative as a current source at least at said nominal clock frequency of said integrated circuit, wherein said power supply unit is electrically connected between said circuit carrier ground and at least one said power supply terminal of said integrated circuit; and at least one buffer capacitor that is effective to reduce voltage fluctuations arising from said circuit load, wherein said buffer capacitor is arranged external to said integrated circuit and is electrically connected exclusively to said integrated circuit in that said buffer capacitor is electrically connected exclusively to at least one said power supply terminal and to at least one of said ground terminals of said integrated circuit such that said buffer capacitor is thereby electrically connected parallel to said circuit load of said integrated circuit.