Title :
The Design of a Developed PWM DC-DC Converter
Author :
Xichuan, Wang ; Ting, Zhang ; Huan, Deng
Author_Institution :
Microelectron. R&D Center, Shanghai Univ., Shanghai
Abstract :
Nowadays, efficient performance and low cost are the most desired features in mobile power management. In order to maintain high efficiency under full load range, a developed PWM DC-DC converter was presented in this paper. The device operates in constant-frequency PWM mode at normal operation and will automatically switch to PFM mode at low output loads for higher efficiency. Firstly, we introduced the total circuit under the guidance of integrated circuits design methodology. Then, the control principle of design was discussed in particular. Finally, the design was validated by HSPICE simulation.
Keywords :
DC-DC power convertors; PWM power convertors; integrated circuit design; low-power electronics; switching convertors; CMOS process; HSPICE simulation; PFM mode operation; PWM DC-DC converter design; constant-frequency PWM mode operation; integrated circuits design methodology; mobile power management; Circuits; DC-DC power converters; Energy management; Error correction; Oscillators; Power system management; Pulse width modulation; Pulse width modulation converters; Space vector pulse width modulation; Voltage control; CMOS; DC-DC converter; PFM; PWM;
Conference_Titel :
High Density packaging and Microsystem Integration, 2007. HDP '07. International Symposium on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-1252-8
Electronic_ISBN :
1-4244-1253-6
DOI :
10.1109/HDP.2007.4283642
