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Welcome to electrical engineering with excel. In this video, we will explore the math used to calculate semiconductor junction temperatures. We will begin with a quick review, of thermal conduction basics, and how the temperature drops across materials, can be simply calculated, with an electrical Ohm’s law analogy. We will create a spreadsheet to do the calculations. Semiconductor Thermal Management 00:00 Intro 00:27 Semiconductor Thermal Management 00:51 Military Handbook 217F (MIL-HDBK-217F) 02:22 Thermal Interface Materials - Insulator Pads 04:19 Phase Change Materials 04:50 Review of Conduction Cooling 07:31 Electrical Resistance Analogy 11:51 TO-220 JEDEC Standard 12:10 TO-220 Thermal Surface Area 12:52 TO-2 Thermal Surface Area 14:19 Calculating Thermal Resistance of Insulators 15:18 Voltage Regulator Spreadsheet 16:11 Generating a Spreadsheet for Thermal Calculations 17:20 Introduction the REFERENCE Cell Style 20:05 Create Cell Names using "Create From Selection" 22:58 Writing the Formulas 24:51 Conditional Formatting of Junction Temperature Cells to Show Overheating 25:27 What's Next?
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