TY - GEN
T1 - Modeling and analysis of resonant switched capacitor converters with free-wheeling ZCS
AU - Hamo, Eli
AU - Evzelman, Michael
AU - Peretz, Mor Mordechai
PY - 2014/1/1
Y1 - 2014/1/1
N2 - This paper introduces a unified modeling methodology to describe and explore the loss mechanism of resonant Switched Capacitor Converter (SCC) operating in a self-commutation zero current switching. The conventional equivalent resistance concept, which assumes a single conduction path of the resonant current, is generalized to model the losses in cases where the resonant current is divided across several conduction loops. The new modeling concept is compatible to describe the losses resulting from resistive elements as well as P-N junction devices, offering a closed-form solution for the equivalent resistance. Verification of the concept has been carried out by simulations and experiments on 3-30W unity and double gain resonant SCC with free-wheeling ZCS. A very good agreement is obtained between the theoretical calculations, simulations and experimental results, well demonstrating the model capability to identify the loss contributors in each conduction path.
AB - This paper introduces a unified modeling methodology to describe and explore the loss mechanism of resonant Switched Capacitor Converter (SCC) operating in a self-commutation zero current switching. The conventional equivalent resistance concept, which assumes a single conduction path of the resonant current, is generalized to model the losses in cases where the resonant current is divided across several conduction loops. The new modeling concept is compatible to describe the losses resulting from resistive elements as well as P-N junction devices, offering a closed-form solution for the equivalent resistance. Verification of the concept has been carried out by simulations and experiments on 3-30W unity and double gain resonant SCC with free-wheeling ZCS. A very good agreement is obtained between the theoretical calculations, simulations and experimental results, well demonstrating the model capability to identify the loss contributors in each conduction path.
UR - http://www.scopus.com/inward/record.url?scp=84900392091&partnerID=8YFLogxK
U2 - 10.1109/APEC.2014.6803718
DO - 10.1109/APEC.2014.6803718
M3 - Conference contribution
AN - SCOPUS:84900392091
SN - 9781479923250
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 2913
EP - 2918
BT - APEC 2014 - 29th Annual IEEE Applied Power Electronics Conference and Exposition
PB - Institute of Electrical and Electronics Engineers
T2 - 29th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2014
Y2 - 16 March 2014 through 20 March 2014
ER -