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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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AN4242 데이터시트(PDF) 23 Page - STMicroelectronics |
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AN4242 데이터시트(HTML) 23 Page - STMicroelectronics |
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23 / 26 page  DocID024196 Rev 1 23/26 AN4242 Efficiency measurement 4.2 Example of efficiency measurements Compared to the conventional ultrafast diode, using SiC diodes we can expect, an efficiency gain of between 1% and 2%. An example of efficiency measurements in a 480 W PFC at VIN = 115 V AC is presented in Figure 20. The efficiency gain with the SiC diode compared to the conventional 600 V silicon diodes reaches 1.2%. Figure 20. Typical efficiency measurement in a 480 W PFC at VIN = 115 V, Fsw = 100 kHz, dI/dt = 600 A/µs New 8A 600V Tandem G2 New 6A 650V SiC G2 DCM mode CCM mode Tj diode»50 °C Tj diode»120 °C 8 A, 600 V Turbo 2 diode 8 A, 600 V Tandem G1 6 A, 600 V SiC G1 Efficiency (%) 95 94 93 92 91 Load (%) 0 1020 30 40 5060 70 80 90 100 |
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