Title :
A Novel Adaptive PWM Controller for DC-DC Buck Conversion
Author :
Tu, Steve Hung-Lung ; Lin, Shu-Ying
Author_Institution :
Dept. of Electron. Eng., Fu Jen Catholic Univ., Taipei
Abstract :
In this paper, we present a novel adaptive mechanism for dc-dc buck conversion which employs the system 1-bit feedback error signal to regulate the output voltage. The proposed adaptive error process unit (EPU) makes the output voltage converge efficiently and the multi-phase digital PWM (DPWM) is implemented with a differential ring oscillator. The proposed controller has been validated with simulation results.
Keywords :
DC-DC power convertors; PWM power convertors; adaptive control; feedback; oscillators; DC-DC buck conversion; adaptive PWM controller; adaptive error process unit; differential ring oscillator; feedback error signal; multiphase digital PWM; Adaptive control; Analog-digital conversion; Control systems; DC-DC power converters; Error correction; Programmable control; Pulse width modulation; Pulse width modulation converters; Regulators; Voltage control;
Conference_Titel :
Circuits and Systems for Communications, 2008. ICCSC 2008. 4th IEEE International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1707-0
Electronic_ISBN :
978-1-4244-1708-7
DOI :
10.1109/ICCSC.2008.76
