Electronics > Projects, Designs, and Technical Stuff
Power Factor Correction Stage in Power Supplies
Inductive load:
Hi, I am currently studying PFC circuits and there is something that is not clear for me, the output of a boost-PFC stage is usually specified with something like: Vout=400V, Iout=500mA. My question is, does this mean that the RMS of input current of the following stage, let's say a flyback converter, should not exceed 500mA ? this sounds wierd because I am sure RMS current of such converters could surpass this value in many power supply applications. Can any one help me understand this please ?
T3sl4co1l:
The output is DC.
RMS is not very meaningful at DC. You would have to justify why you are using RMS in the first place.
Tim
Inductive load:
Thanks for your reply,
Actually I want to connect a PFC stage to a flyback converter, the primary side current of the converter is expressed with the RMS drain current: IdsRMS, and peak drain current : Idspeak.
NiHaoMike:
--- Quote from: Inductive load on November 14, 2019, 09:34:17 am ---Vout=400V, Iout=500mA.
--- End quote ---
Just multiply the two to get 200W, then you just have to make sure the load connected to it does not exceed that.
Inductive load:
Ok thanks I understand, but it is just not clear to me how the transformer transfers 200W max when 400V is applied across its primary inductor and let's say IdsRMS = 2A passes through it.
Navigation
[0] Message Index
[#] Next page
Go to full version