Patent ID: 6437959
Filing Date: 2002-08-20
Classification: G11C

Abstract:
An integrated electrical and/or electronic system, comprising:at least one functional module connected to a supply voltage and also connected to a pin external to the functional module via an electrical terminal; and an isolation device that electrically isolates the functional module, comprising: a fuse having a first pole connected to the pin of the functional module and a second pole connected to the external electrical terminal; a semiconductor dipole that is energized by a priming voltage, the semiconductor dipole having a first pole connected to the first pole of the fuse and a second pole being accessible outside of the electrical system; a second dipole having a first pole connected to the external pin of functional module and a second pole connected to a preset voltage, wherein application of an isolating voltage, which is higher than the priming voltage applied between the second pole of the fuse and the second pole of the energizable semiconductor dipole, causes the fuse to physically break, enabling a preset voltage on the pin to be exclusively maintained via the second dipole.