A programmable digital pulse width modulator providing versatile pulse patterns and supporting switching frequencies beyond 15 MHz

Author

Malley, Eamon O. ; Rinne, Karl

Author_Institution

Dept. of Electron. & Comput. Eng., Limerick Univ., Ireland

Volume

1

fYear

2004

fDate

2004

Firstpage

53

Abstract

This paper describes the implementation of a novel and highly versatile digital pulse width modulator (DPWM) -probably the most critical component in any digitally controlled switching power converter. Its new architecture, composed of a delay-locked loop (DLL) and programmable DPWM module, allows the generation of high resolution, high switching frequency (f_m) PWM signals. The DPWM IC was designed using a standard 0.35-μm CMOS process and supports switching frequencies beyond 15 MHz.

Keywords

CMOS integrated circuits; PWM power convertors; delay lock loops; digital control; programmable controllers; switching convertors; 15 MHz; CMOS process; DLL; PWM signal; delay-locked loop; digital control; digital pulse width modulator; programmable DPWM module; switching frequency; switching power converter; Delay; Digital control; Digital modulation; Modulation coding; Pulse width modulation; Pulse width modulation converters; Signal generators; Space vector pulse width modulation; Switching converters; Switching frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2004. APEC '04. Nineteenth Annual IEEE

Print_ISBN

0-7803-8269-2

Type

conf

DOI

10.1109/APEC.2004.1295787

Filename

1295787