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Hi - low limit comparator - LM139

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  • Nicolae Sfetcu
    Hi - low limit comparator - LM139 This circuit uses an LM139 (LM339) to form a limit comparator. If Vin is between Vref HI and Vref LOW then the lamp will be
    Message 1 of 1 , Dec 5, 2000
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      Hi - low limit comparator - LM139

       

      This circuit uses an LM139 (LM339) to form a limit comparator. If Vin is between Vref HI and Vref LOW then the lamp will be off. If Vin goes above Vref HI or below Vref LOW, the transistor will be turned on and the lamp will light.

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