Loading patent…
AssigneeInfineon Technologies AG
InventorJoerg Berthold
Estimating the term…
In order to achieve reliable operation despite the greater interference susceptibility of a circuit (1) at a reduced power supply, in addition to a global power supply path (6, 7) to supply the circuit (1) in operating state, a rest state power supply path (10, 11) is provided with which the circuit (1) is connected in particular via transistor diodes (14, 15). As soon as the circuit (1) by way of first switches (12, 13) is separated from the global power supply path (6, 7), because of the voltage loss in the transistor diodes (14, 15) it is supplied by the rest state power supply path (10, 11) which is provided exclusively to supply circuit parts (1) set into rest state and on which therefore fewer current or voltage peaks can occur.
Circuit arrangement to reduce the supply voltage of a circuit part (1) with a global power supply path (6, 7), a local power supply path (8, 9) connected with the circuit part (1) and first switching means (12, 13) for connecting the global power supply path (6, 7) with the local power supply path (8, 9), wherein the circuit arrangement has a rest state power supply path (10, 11) and switching means (14, 15) by way of which the local power supply path (8, 9) can be connected with the rest state power supply path (10, 11).
Dependencies are inferred from the claim text.