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Excellent electrical properties of latest power devices for improving the efficiency of PV inverters are presented. Power modules using SiC-MOSFET and -SBD exhibit the possibility to realize PV inverters with peak efficiency beyond 99.0%. Silicon IGBT modules using RB-IGBT have enabled to mass-produce PV inverters with peak efficiency of 98.4%. Silicon SJ-MOSFET and discrete IGBT have enabled to improve...
New IGBT modules to realize advanced neutral-point-clamped (A-NPC) 3-level power converters have been developed for the first time. The power loss of the IGBT modules developed is minimized by using 6th generation IGBT and FWD and 2nd generation RB-IGBT dies, the stray inductance between each pair of main terminal is as low as 40nH, and the arrangement of the terminals are optimized for constructing...
This paper demonstrates some fundamental logic gates employing two phase clocked adiabatic static CMOS logic (2PASCL) circuit techniques. We design and simulate NOT, NAND, NOR, and XOR logic gates on the basis of the 2PASCL topology using SPICE implemented using 0.18 ??m CTX CMOS technology. For NOT circuit, analytical and simulation values are compared. From the simulation results, we find that 2PASCL...
This paper demonstrates the low energy operation of 4-bit ripple carry adder (RCA) employing two phase clocked adiabatic static CMOS logic (2PASCL) circuit techniques. We evaluate NOT, NAND, XOR and NOR logic gates on the basis of the 2PASCL topology using SPICE implemented using 0.18 ??m CTX CMOS technology. For NOT circuit, analytical and simulation values are compared. By removing the diode from...
This paper demonstrates the low-energy operation of a two-phase clocked adiabatic static CMOS logic (2PASCL) on the basis of the results obtained in the simulation of a 4-bit ripple-carry adder (RCA) employing 2PASCL circuit technology. Energy dissipation in the 2PASCL RCA is 71.3% lesser than that in a static CMOS RCA at transition frequencies of 10-100 MHz.
This paper reports a large-scale eddy-current analysis of conductive frame of large-capacity inverter. The eddy-current loss obtained by the electromagnetic field analysis is used as a heat source for the thermal analysis. Then, the suitable configuration of the frame for the suppression of temperature increase is investigated and designed. The hybrid finite-element and boundary-element (FE-BE) method...
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