G. Golo et C. Milosavljevic, 2-PHASE TRIANGULAR WAVE OSCILLATOR BASED ON DISCRETE-TIME SLIDING MODE CONTROL, Electronics Letters, 33(22), 1997, pp. 1838-1839
On the basis of the theory of variable structure systems, a new method
for the synthesis of high-quality triangular wave oscillators has bee
n proposed. The proposed oscillator features a finite oscillation buil
d-up time, and the negative influence of the high-frequency control si
gnal on the quality of output signals, chattering, is eliminated.