Difference between average power and RMS power

For digital circuits, the power consumption refers to average power.

RMS power is meaningless and misleading.

RMS is meaningful for Voltage and Current in a LINEAR circuits.

P=Vrms*Irms=Pave

For non-linear circuits, only average power should be calculated.

An analysis with simple examples can be found at:

http://www.eznec.com/Amateur/RMS_Power.pdf