Title :
Analysis of a source-coupled CMOS multivibrator
Author :
Finvers, I.G. ; Filanovsky, I.M.
Author_Institution :
Alberta Univ., Edmonton, Alta., Canada
fDate :
9/1/1988 12:00:00 AM
Abstract :
The determinant of the system of nodal equations for a source-coupled CMOS multivibrator with drain clamping by active devices is calculated. Equating this determinant to zero allows the condition of transition from one quasistable state to another to be obtained. This condition is used to calculate the currents in the multivibrator transistors at the instant of transition. Then the voltage amplitude at the coupling capacitor is calculated and the oscillation frequency is found. The control characteristic (oscillation frequency versus level of the operating current) is evaluated. The results were verified experimentally
Keywords :
CMOS integrated circuits; circuit oscillations; equivalent circuits; multivibrators; nonlinear network analysis; relaxation oscillators; active devices; coupling capacitor; drain clamping; oscillation frequency; quasistable state; source-coupled CMOS multivibrator; transistor currents; transition condition; voltage amplitude; Capacitors; Clamps; Coupling circuits; Equations; Equivalent circuits; Frequency; Linear circuits; Oscillators; Prototypes; Voltage;
Journal_Title :
Circuits and Systems, IEEE Transactions on
