Patent ID: 7190207

Claim:
A one way conductor, comprising: a first transistor, having a source, a drain and a gate; and a driving circuit, the driving circuit being coupled to the first transistor and comprising: a second transistor having a an emitter, a base and a collector; a third transistor having an emitter, a base and a collector, wherein the emitter of the third transistor is coupled to the source of the first transistor, the collector of the third transistor is coupled to the gate of the first transistor, the base of the second transistor is coupled to the base of the third transistor, and the base of the second transistor is coupled to the collector of the second transistor; a first impedance element having a first end coupled to the drain of the first transistor and a second end coupled to the emitter of the second transistor; a second impedance element having a first end coupled to the collector of the second transistor and a second end coupled to a constant voltage; and a third impedance element having a first end coupled to the collector of the third transistor and a second end coupled to the constant voltage.