## Phasor Diagrams

Caution:It is important to note that at any given time, the sum of the voltages across the three components, R, C, and L, must equal the voltage of the AC source. This is just energy conservation or Kirchoff's Loop Rule,

v(t) = v _{R}(t) + v_{C}(t) + v_{L}(t)or

v = v _{R}+ v_{C}+ v_{L}However, a similar equation for the rms values or the maximum values of these voltages would

notbe true. That is,V V _{R}+ V_{C}+ V_{L}or

V _{o} V_{R,max}+ V_{C,max}+ V_{L ,max}

(c) Doug Davis, 2002; all rights reserved

Return to Ch 22 Home Page (ToC)