P.S. In real circuits, power factor (the cosine of the angle between voltage and current) matters. As PF goes to zero, PAR goes to infinity. -- I think you are thinking about PF issues with power supplies with small conduction angles and non sinusoidal current waveforms due to cap input filters.... , the traditional PF caused by sinusoidal current and voltage out of phase does not impact PAR. Mark
OFDM average power
Started by ●September 20, 2005
Reply by ●September 24, 20052005-09-24
Reply by ●September 25, 20052005-09-25
Mark wrote:> P.S. In real circuits, power factor (the cosine of the angle between > voltage and current) matters. As PF goes to zero, PAR goes to infinity. > > -- > I think you are thinking about PF issues with power supplies with small > conduction angles and non sinusoidal current waveforms due to cap input > filters.... , the traditional PF caused by sinusoidal current and > voltage out of phase does not impact PAR. > > MarkOh? How do you define peak-to-average power ratio? I think it's (peak power)/(average power). When PF is zero, so is average power. It is zero because the positive power and negative power cancel. I'll show more analysis if you ask for it. Jerry -- Engineering is the art of making what you want from things you can get. �����������������������������������������������������������������������