Department of Electrical Engineering, University of Guilan, Rasht, Iran
A currentmode pulse width modulator (PWM) based on active floating inductance is presented. The modulator consists of a cascade structure of a current conveyor (CCII) based active inductor as a triangular current wave generator (TCWG) and a current comparator to generate the output PWM by comparing the triangular and reference currents. The proposed current conveyor and PWM circuit are designed and the obtained performance metrics corresponding to HSPICE simulations in 0.18 μm CMOS process and ±1.5 V supply voltage reveal the performance of the modulator.
Active inductor, Current comparator, Current conveyor, Pulse width modulation
