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

fYear

2010

fDate

19-21 May 2010

Firstpage

397

Lastpage

401

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;

fLanguage

English

Publisher

ieee

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

Type

conf

Filename

5491462