Title :
An inductively tuned CMOS astable multivibrator
Author :
Buonomo, Antonio
Author_Institution :
Dipt. di Ing. dell´´Inf. Seconda, Univ. degli Studi di Napoli, Naples
Abstract :
A new inductively tuned astable multivibrator is presented. The circuit is formed connecting a timing inductor across a composite nonlinear two-terminal, which is made up of two complementary pairs of cross-coupled MOS devices. The nonlinear differential equation describing the circuit is derived, which is solved for the oscillation period by quadrature. Exact expressions for both the amplitude and the period of the relaxation oscillation are found, as well as some useful approximations of them. Circuit simulations confirm the presence of a relaxation oscillation which is accurately predicted by the presented nonlinear analysis.
Keywords :
CMOS integrated circuits; circuit simulation; circuit tuning; inductors; multivibrators; nonlinear differential equations; relaxation oscillators; circuit simulations; cross-coupled MOS device; inductively tuned CMOS astable multivibrator; nonlinear differential equation; relaxation oscillation; timing inductor; Bipolar transistors; Capacitors; Circuit simulation; Differential equations; Diodes; Inductors; Joining processes; MOS devices; Timing; Voltage;
Conference_Titel :
Circuits and Systems, 2008. ISCAS 2008. IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-1683-7
Electronic_ISBN :
978-1-4244-1684-4
DOI :
10.1109/ISCAS.2008.4541930
