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VTemp (LM35) [0-5V]



V 100 C = 5V
                                                  R3
                                                          Vout (100 C)
                                                  10K




                                            3
                                       7
                                                    1
                                       6
                             R2
                                     U1:A




                                            12
        R1                   1K                   LM339
        10K


                                            R4
                                            19K
V 85 C = 5V




                                                  R8
        R5                                                Vout (85 C)
        1K                                        10K




                                            3
                                       5
                                                    2
                                       4
        R6                     R7
        5K6                          U1:B




                                            12
                               1K                 LM339



                                            R9
V 60 C = 5V
                                            19K



        R10                                       R13
        1K                                                Vout (60 C)
                                                  10K




                                            3
                                       9
                                                    14
                                       8
        R11                    R12
        1K5                          U1:C



                                            12
                               1K                 LM339



                                            R14
                                            19K

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Comparator

  • 1. VTemp (LM35) [0-5V] V 100 C = 5V R3 Vout (100 C) 10K 3 7 1 6 R2 U1:A 12 R1 1K LM339 10K R4 19K V 85 C = 5V R8 R5 Vout (85 C) 1K 10K 3 5 2 4 R6 R7 5K6 U1:B 12 1K LM339 R9 V 60 C = 5V 19K R10 R13 1K Vout (60 C) 10K 3 9 14 8 R11 R12 1K5 U1:C 12 1K LM339 R14 19K