Page 12 - PEN Ebook May 2021
P. 12
Cover Story - Design Cover Story - Design
Table 2: Pre-charge loop parameters when 2x IPT60R090CFD7 is used in parallel in the half-bridge.
results based on a demo board of a totem-pole 98 percent in the measured power range.
PFC board implemented with Infineon’s
Figure 6: Combining CoolMOS™ with OptiMOS™, EiceDriver™, as well as 650 V SiC Schottky diode, allows reaching close to 99
CoolMOS™ superjunction MOSFET technology By relying on Infineon’s broad portfolio of prod-
percent peak efficiency in the PFC stage.
(CoolMOS™ CFD7 and CoolMOS™ S7 SJ ucts and solution offerings, converter system de-
MOSFETs). signers can reach the highest efficiency levels in For More Information
CCM totem-pole PFC at the desirable price-per-
Infineon’s system solution implements the pow- formance ratio and meet the high-end servers
er switches, diodes, drivers, and controller, and and telecoms application requirements. ▶ [1] L. Huber, Y. Jang, and M. M. Jovanovic, “Performance Evaluation of Bridgeless
thanks to the CoolMOS™ technology, it can achieve PFC Boost Rectifiers,” in IEEE Transactions on Power Electronics, vol. 23, no. 3, pp.
maximum efficiency of over 98.9 percent in the To learn more about our CCM totem-pole PFC 1381-1390, May 2008.
range of 1000 W to 1500 W output power and over system solution, please visit the board page.
▶ [2] W. Wu, “1.5 kW Digital totem-pole PFC Design for Air-Conditioner and
Performance Comparison Using IGBT, SiC and GaN,” PCIM Europe 2017.
▶ [3] C. Marxgut, F. Krismer, D. Bortis, and J. W. Kolar, “Ultraflat Interleaved
Triangular Current Mode (TCM) Single-Phase PFC Rectifier,” in IEEE Transactions
on Power Electronics, vol. 29, no. 2, pp. 873-882, Feb. 2014.
▶ [4] R. Siemieniec, O. Blank, M. Hutzler, L. J. Yip and J. Sanchez, "Robustness of
MOSFET devices under hard commutation ofthe body diode," 2013 15th European
Conference on Power Electronics and Applications (EPE), 2013, pp. 1-10
▶ [5] M. Kutschak, D. Meneses, M. Escudero, R. Garcia Mora, “Lossless hard-
commutated operation of SJ MOSFETs and application to CCM totem-pole
bridgeless PFC,” PCIM paper May 2021
Figure 5: Efficiency measurement of the totem-pole PFC with the proposed solution, including the bias supply, and without
considering the fan consumption.
12 MAY 2021 | www.powerelectronicsnews.com MAY 2021 | www.powerelectronicsnews.com 13
