View Single Post
  #26   Report Post  
Posted to sci.electronics.repair
Phil Allison[_3_] Phil Allison[_3_] is offline
external usenet poster
 
Posts: 1,249
Default voltage of dimmer output not reading same on two different DVM's

Ralph Mowery wrote:
===================

DC voltage and true RMS voltage are equivalent.
DC meters read the average, DC value of a wave.



That really should be qualified.


** No need exists.

The way I understnd it is that the RMS voltage produces the same ammount
of heat in a resistor as a DC voltage will.

However RMS voltage could be a high peak value that will damage solid
state devices. The meter could show 5 volts, peaks could be 50 volts.

Again DC meters could read many different values depending on the meter
and wave form.


** What I wrote was accurate.

Strange how so many are baffled by such simple stuff.




....... Phil