Title :
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
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 (fm) 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;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2004. APEC '04. Nineteenth Annual IEEE
Print_ISBN :
0-7803-8269-2
DOI :
10.1109/APEC.2004.1295787
