3 a i v r ω 2 3 6 a v r required ω ω 1 1 r

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3 A I V R = = 2 . 0 3 6 . A V R   REQUIRED + = 1 . 0 1 . 0 R  AVAILABLE  ARE RESISTORS    ONLY     WHEN 600mV    BE   MUST    = 1 . 0 9 A I V R = = 0667 . 0 9 6 . A V R   REQUIRED R SIMPLE CASE NOT SO SIMPLE CASE
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EFFECT OF RESISTOR TOLERANCE 10%    : TOLERANCE   RESISTOR 2.7k    :  VALUE RESISTOR NOMINAL   RANGES FOR CURRENT AND POWER? mA I mA I 115 . 4 7 . 2 9 . 0 10 367 . 3 7 . 2 1 . 1 10 max min = × = = × =   : CURRENT   MAXIMUM    : CURRENT   MINIMUM THE RANGES FOR CURRENT AND POWER ARE DETERMINED BY THE TOLERANCE  BUT THE PERCENTAGE OF CHANGE MAY BE DIFFERENT FROM THE PERCENTAGE OF TOLERANCE. THE RANGES MAY NOT EVEN BE SYMMETRIC mA I 704 . 3 7 . 2 10 = = -   : CURRENT NOMINAL  ( 29 _ mW P 04 . 37 7 . 2 10 2 = =    : POWER NOMINAL       : POWER   MAXIMUM   : ) POWER(VI   MINIMUM min mW mW 15 . 41 67 . 33
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CIRCUIT WITH SERIES-PARALLEL RESISTOR COMBINATIONS COMBINING RESISTORS IN SERIES ELIMINATES ONE NODE FROM THE CIRCUIT. COMBINING RESISTORS IN PARALLEL ELIMINATES ONE LOOP FROM THE CIRCUIT THE COMBINATION OF COMPONENTS CAN REDUCE THE COMPLEXITY OF A CIRCUIT AND RENDER IT SUITABLE FOR ANALYSIS USING THE BASIC  TOOLS DEVELOPED SO FAR. GENERAL STRATEGY REDUCE COMPLEXITY UNTIL THE CIRCUIT   BECOMES SIMPLE ENOUGH TO ANALYZE.
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  • Spring '12
  • HaroldKlee
  • Trigraph, SEPTA Regional Rail, Jaguar Racing, University City, Jenkintown-Wyncote

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