выпрямитель на диодных модулях SKKD100/12 и чоппером на SEMIX352GB128D -тепловой расчет

Project:KRIPTO iK

Topology AC/DC Circuit B2U

Circuit:

Vin 18 V Iout 120 A Iout rms 120 A fin 50 Hz Form Factor 1.4142 Overload Factor 1 Overload Duration 10 sec

Device:

Product Line SemiPack Device SKKD100* Recommended Voltage 200 V Maximum Junction Temperature 125 °C Use Maximum Values Yes VT0.25 = 1.06 V VT0.125 = 0.86 V rT.25 = 1.03 mOhm rT.125 = 1.37 mOhm Rth(j-s) = 0.55 K/W Data set from Not set No Comment

Cooling:

Ambient temperature 35 °C Number of switches per heat sink 4 Number of parallel devices on the same heat sink 1 Additional power source at this heat sink 190 W -доп.потери от SEMIX352GB128 Predefined SK-Heat Sink P3_180 -используем аналог охладитель RE180 Correction Factor 1 Forced Air Cooling, Flow Rate: 150 m3/h Rth(s-a) 0.117 K/W

Losses And Temperatures:

Steady State Overload Lossesdevice 62 W 62 W Lossestot 248 W 248 W Heat Sink Temperature 86 °C 86 °C Junction Temperature 120 °C 120 °C

Evaluation:

Recommendation by SEMIKRON: Do not use semiconductor in the range of Tj(max) = 125 °C

Note

1) A: 15V - Vin; B: 5V - Vin