Title :
New Architectures for Radio-Frequency DC–DC Power Conversion
Author :
Rivas, Juan M. ; Wahby, Riad S. ; Shafran, John S. ; Perreault, David J.
fDate :
3/1/2006 12:00:00 AM
Abstract :
This document proposes two new architectures for switched-mode dc–dc power conversion. The proposed architectures enable dramatic increases in switching frequency to be realized while preserving features critical in practice, including regulation of the output across a wide load range and high light-load efficiency. This is achieved in part by how the energy conversion and regulation functions are partitioned. The structure and control approach of the new architectures are described, along with representative implementation methods. The design and experimental evaluation of prototype systems with cells operating at 100MHz are also described. It is anticipated that the proposed approaches and ones like them will allow substantial improvements in the size of switching power converters and, in some cases, will permit their integrated fabrication.
Keywords :
Cellular architecture; RF power amplifier (PA); class E inverter; integrated converter; radio frequency (RF) dc–dc power converter; self-oscillating inverter (SOI); very high frequency (VHF); Control systems; Design methodology; Fabrication; Inverters; Power conversion; Power electronics; Pulse width modulation; Radio frequency; Switching converters; Switching frequency; Cellular architecture; RF power amplifier (PA); class E inverter; integrated converter; radio frequency (RF) dc–dc power converter; self-oscillating inverter (SOI); very high frequency (VHF);
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2005.869740