TY - GEN
T1 - LLC DC/DC resonant converter with PLL control scheme
AU - Lin, Ray Lee
AU - Ju, Wei Cheng
PY - 2007
Y1 - 2007
N2 - This paper proposes a capacitively loaded loop (LLC) DC/DC resonant converter with phase-locked loop (PLL) control scheme. The PLL control scheme enables the switching frequency of the converter to continuously track the resonant frequency of the LLC resonant tank by detecting the phase signals of the input and transformer secondary output voltages of the LLC resonant tank. Based on this resonant frequency, the switching frequency is adjusted to obtain the required voltage gain. However, because the operating frequency will not be lower than the resonant frequency of the LLC resonant tank, the switches of the inverter are both operated in zero-voltage-switching (ZVS) condition so that the turn-on switching losses are reduced. The proposed 200W LLC DC/DC resonant converter with PLL control scheme is then designed and implemented to validate and demonstrate the performance and feasibility of the proposed DC/DC converter.
AB - This paper proposes a capacitively loaded loop (LLC) DC/DC resonant converter with phase-locked loop (PLL) control scheme. The PLL control scheme enables the switching frequency of the converter to continuously track the resonant frequency of the LLC resonant tank by detecting the phase signals of the input and transformer secondary output voltages of the LLC resonant tank. Based on this resonant frequency, the switching frequency is adjusted to obtain the required voltage gain. However, because the operating frequency will not be lower than the resonant frequency of the LLC resonant tank, the switches of the inverter are both operated in zero-voltage-switching (ZVS) condition so that the turn-on switching losses are reduced. The proposed 200W LLC DC/DC resonant converter with PLL control scheme is then designed and implemented to validate and demonstrate the performance and feasibility of the proposed DC/DC converter.
UR - http://www.scopus.com/inward/record.url?scp=46449091146&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=46449091146&partnerID=8YFLogxK
U2 - 10.1109/APEX.2007.357721
DO - 10.1109/APEX.2007.357721
M3 - Conference contribution
AN - SCOPUS:46449091146
SN - 1424407133
SN - 9781424407132
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 1537
EP - 1543
BT - APEC 2007 - 22nd Annual IEEE Applied Power Electronics Conference and Exposition
T2 - APEC 2007 - 22nd Annual IEEE Applied Power Electronics Conference and Exposition
Y2 - 25 February 2007 through 1 March 2007
ER -