Title :
A simple pulse width modulator using current conveyor
Author :
Siripruchyanun, Montree ; Wardkein, Paramote ; Sangpisit, Wipa
Author_Institution :
Dept. of Teacher Training in Electr. Eng., King Mongkut´´s Inst. of Technol., Bangkok, Thailand
Abstract :
A simple pulse width modulator (PWM) is proposed. The circuit principle is based on a relaxation oscillator with a second generation current conveyor (CCII). The proposed scheme is simpler than the existing PWM methods and the duty factor linearly depends on the modulating signal. Another advantage is that the circuit is suitable for IC implementation. The simulation and experimental results are given. They show good agreement with the theoretical analysis
Keywords :
current conveyors; modulators; pulse width modulation; relaxation oscillators; CCII; IC implementation; PWM; current conveyor; duty factor; pulse width modulator; relaxation oscillator; second generation current conveyor; Amplitude modulation; Circuits; Frequency; Operational amplifiers; Oscillators; Pulse width modulation; Sampling methods; Signal generators; Space vector pulse width modulation; Voltage;
Conference_Titel :
TENCON 2000. Proceedings
Conference_Location :
Kuala Lumpur
Print_ISBN :
0-7803-6355-8
DOI :
10.1109/TENCON.2000.893710
