Title :
The optimized switching of current mode PWM buck converter with high efficiency and high frequency
Author :
Jia-Chuan Lin ; Meng-Hsueh Wu ; Po-Chia Huang ; Yu-Chi Tsui
Author_Institution :
Dept. of Electr. Eng., Nat. Taipei Univ., Taipei, Taiwan
Abstract :
As a new type buck converter, it contain high efficiency and high stability, we used Multi-stage switch to improve efficiency. This circuit can adjusted based on the load amount to determine the number of power MOSFET pulse on. So this design have good efficiency, under any load conditions. This circuit is working on 20M Hz, and this type of frequency can make inductor very small to reduce chip´s size. Efficiency is 81% in light load; is 86% in heavy load. This was designed and simulated using 0.35 micron TSMC 2P4M 5V technology, with a chip area 6.83mm2.
Keywords :
PWM power convertors; current-mode circuits; power MOSFET; switching convertors; TSMC 2P4M 5V technology; current mode PWM buck converter; multistage switch; optimized switching; power MOSFET pulse; size 0.35 mum; Batteries; Circuit stability; MOSFET; Pulse width modulation; Stability analysis; Switches; Voltage control; Multi-stage switch; buck converter; efficiency; high frequency; high stability;
Conference_Titel :
Next-Generation Electronics (ISNE), 2014 International Symposium on
Conference_Location :
Kwei-Shan
DOI :
10.1109/ISNE.2014.6839337
