Title :
Ramp signal generation in Voltage mode CCM Random switching Frequency Buck converter for conductive EMI reduction
Author :
Ho, Edward N Y ; Mok, Philip K T
Abstract :
An output voltage ripple aware design of different voltage ramp signal of Voltage mode CCM Random Frequency Buck converter for conductive EMI reduction has been presented in this paper. Simulation and experimental results with a standard CMOS-0.35μm process verifies the proposed design and analysis. From experimental result, a carefully designed ramp can reduce output voltage ripple by more than 8 times with no influence on the inductor current spectrum spread and without any increment of inductance and capacitance comparing to conventional design.
Keywords :
frequency convertors; power convertors; signal generators; conductive EMI reduction; continuous conduction mode; inductor current spectrum spread; output voltage ripple aware design; random switching frequency buck converter; voltage ramp signal generation; Electromagnetic interference; Frequency conversion; Generators; Inductors; Switching frequency; Voltage measurement;
Conference_Titel :
Custom Integrated Circuits Conference (CICC), 2010 IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4244-5758-8
DOI :
10.1109/CICC.2010.5617590
