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  • Making Logic Gates From Discrete Components - The Learning Circuit

    In the previous lesson, Karen explained the logic behind AND, NAND, OR, NOR, NOT, XOR, and XNOR logic gates. In that episode, we also learned that logic gates are typically contained in IC chips, with multiple gates within each chip. For this epis...
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  • Diodes and Bipolar Junction Transistors (BJTs) - Measuring the Temperature Coefficient

    Introduction Diodes (or p-n junctions) make extremely low-cost temperature sensors! They are convenient, especially since they can be included on the silicon as part of larger designs into integrated circuits (ICs) - it costs almost nothing to include…