stevenal,
to be honest, i find this is a "trick" question at intefrviews that i've had.
-they speak of a battery application and then ask you what sort of power factor correction you would use....
the correct answer is that you don't need power factor correction for battery applications.
stevenal, thanks for getting back.
the thing is, none of the semiconductor companies sell PFC chips for DC battery applications
with DC your instantaneous V*I product is always positive, at any instant, and for that reason, the power factor is always unity.
thankyou stevenal,
"If you have any kind of periodic waveform, the pf is not necessarily equal to unity."
.....May i just pose a question on this?
If i run a flyback SMPS from a battery , then are you saying that somehow there is a power factor to be taken account of?
hello,
i can appreciate that if the above right flyback waveforms (picture in 1st post) were of a flyback stage occuring after a simple full wave bridge then the power factor would indeed be low.
of course, forgetting about the AC mains for a minute, with DC waveforms from a DC source, the...
Thanks VE1BLL,
Before seeing the ML4821 datasheet, I thought RMS was just for AC. In fact, i still think it is only for AC.
I always thought averages were right for DC.
Hello, i have a deceptively simple question, which i don't feel is that simple....
I am writing with regard to calculating the input power to an SMPS,
-that is calculating the input power from the DC input voltage and current.
The problem i have is
For a continuous mode boost converter PFC...
