Patent ID: 7330063
Filing Date: 2008-02-12
Classification: H04M

Abstract:
1. A circuit arrangement for bidirectional current limiting, comprising: a first transistor having a first controllable path and a first control terminal; a second transistor having a second controllable path and a second control terminal; said first and said second control terminals being connected to a first current source; a first resistor connected between said first and said second controllable paths; a first zener diode connected between said first current source and a first line node which is located between said first controllable path of said first transistor and said first resistor; a second zener diode connected between said first current source and a second line node which is located between said second controllable path of said second transistor and said first resistor; and a first terminal and a second terminal; said first and second controllable paths and said first resistor being connected between said first and second terminals.