Title :
A fully electronically controllable current-mode derivative PWM signal generator employing MO-CTTAs
Author :
Kumbun, Jongcharoen ; Silapan, Phamorn ; Siripruchyanun, Montree
Author_Institution :
Dept. of Teacher Training in Electr. Eng., King Mongkut´´s Univ. of Technol. North Bangkok, Bangkok, Thailand
Abstract :
This article presents a new current-mode derivative PWM signal generator based on MO-CTTAs (Multiple output current through transconductance amplifiers). The circuit description is very simple, its construction consists of 2 MO-CTTAs and 1 grounded capacitor without any external resistor. The output frequency and amplitude can be independently and electronically adjusted. With mentioned features, it is very suitable to realize in a monolithic chip. The PSPICE simulation results are depicted, and agree well with the theoretical anticipation. The maximum power consumption is approximately 5.73mW at ±1.5V power supply.
Keywords :
operational amplifiers; pulse width modulation; signal generators; PSPICE simulation; current-mode derivative PWM signal generator; electronically controllable PWM signal generator; grounded capacitor; maximum power consumption; monolithic chip; multiple output current through transconductance amplifier; Capacitors; Circuit simulation; Energy consumption; Frequency; Power supplies; Pulse width modulation; Resistors; SPICE; Signal generators; Transconductance;
Conference_Titel :
Electrical Engineering/Electronics Computer Telecommunications and Information Technology (ECTI-CON), 2010 International Conference on
Conference_Location :
Chaing Mai
Print_ISBN :
978-1-4244-5606-2
Electronic_ISBN :
978-1-4244-5607-9
