Thermostat LM56 Project Circuit DiagramLM56 Thermostat Project Circuit Diagram values of R1, R2 and R3 for the required trip points VT1 and VT2 can be determined using the subsequent equations.VT1 = 1.250V x (R1)/ (R1 + R2 + R3)VT2 = 1.250V x (R1 + R2)/ (R1 + R2 + R3)where:(R1 + R2 + R3) = 27 k Ohms andVT1 or T2 = [6.20 mV/degree Celsius x T] = 395 mV therefore:R1 = VT1/ (1.25V) x 27 k OhmsR2 =
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Showing posts with label Thermostat. Show all posts
Showing posts with label Thermostat. Show all posts