INTEGRATED PROTECTION CIRCUIT

摘要

An integrated protection circuit (24) for protecting a main circuit (26) from spurious high amplitude voltage signals is provided, wherein the main circuit has a main circuit input terminal (28) connected to an input line(30), and the protection circuit comprises a transistor (32), a resistor (34) and a capacitor (36). The transistor has a first electrode (38) connected to the input line, a second electrode (40) connected to a common reference (44), and a control electrode (42) connected to the resistor. The resistor is connected to the common reference; and the capacitor is implemented as a fringe capacitor between the input line and the control electrode or a conductive line connected to the control electrode.