Current-controlled square/triangular wave generator with MO-CCDVCC

Relaxation oscillator with multiple-output current-controlled differential voltage current conveyor (MO-CCDVCC), one resistor and one capacitor (both grounded) is introduced in the paper. The circuit provides square and triangular waveforms whose frequency can be set by conveyor external bias current. A high performance MOS structure of MO-CCDVCC is presented which can be used also in other applications where control of the intrinsic resistance of X terminal and high output impedance of Z terminals are required. Description of the generator principle is given including recommendations for computation of element parameters. SPICE simulations proved functionality and tunability of the circuit designed.