1-5 a) Divisores de Voltaje y b) Corriente

UES-FIA-EIE-AEL115 Ciclo I-2012

1.5 Tcnicas de Anlisisde Circuitos:

a) Divisor de Voltaje

b) Divisor de Corriente


Chapter 3 Voltage and Current Laws

Engineering Circuit Analysis Sixth EditionW.H. Hayt, Jr., J.E. Kemmerly, S.M. Durbin

Copyright 2002 McGraw-Hill, Inc. All Rights Reserved.

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Fig. 3.30 An illustration of voltage division.Fig. 3.32 Circuit for Practice Problem 3.12.Fig. 3.33 An illustration of current division.Fig. 3.100 Determine the current Ix if I1 = 100 mA.

UES-FIA-EIE-AEL115 Ciclo I-2012W.H. Hayt, Jr., J.E. Kemmerly, S.M. Durbin, Engineering Circuit Analysis, Sixth Edition.

Copyright 2002 McGraw-Hill. All rights reserved.

1.5 a) Divisor de Voltaje:We may find v2 by applying KVL and Ohms law:

An illustration of voltage division.


For a string of N series resistors, we may write:

1 2 ...

kk s

N

Rv v

R R R

= + + +

W.H. Hayt, Jr., J.E. Kemmerly, S.M. Durbin, Engineering Circuit Analysis, Sixth Edition.Copyright 2002 McGraw-Hill. All rights reserved.



Exercise: Use voltage division to determine vx in the adjacent circuit.



1.5 b) Divisor de Corriente:The current flowing through R2 is

An illustration of current division.


1 2 ...

kk s

N

Gi iG G G

=

+ + +

For a parallel combination of N resistors, the current through Rk is

W.H. Hayt, Jr., J.E. Kemmerly, S.M. Durbin, Engineering Circuit Analysis, Sixth Edition.Copyright 2002 McGraw-Hill. All rights reserved.



Exercise: Determine the current Ix if I1 = 100 mA.

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1-5 a) Divisores de Voltaje y b) Corriente