Novel circuit implementation of current conveyors using an o.a. and an o.t.a

A novel three-port active R circuit is proposed which is capable of implementing all the four forms of current conveyors (namely c.c.I+, c.c.I−, c.c.II+ and c.c.II−) through appropriate adjustments, by employing an operational amplifier, an operational transconductance amplifier and only two resistors.