I am looking into designing a power factor correction circuit as a pre-converter for my DC-DC converter, which I have designed to improve the efficiency and provide a regulated DC voltage to the main DC-DC converter.
The PFC converters I have witnessed online are AC-DC converters, using the AC input to power factor correct and provide stable DC output at high power factor. However, my converter has 243VDC input voltage. How could I use a PFC converter with this input voltage? Basically, is there a way to do PFC in a DC-DC rather than an AC-DC way?
To me it doesn't make sense as I don't really have any information regarding the AC quantities because I have a varying DC input that is rectified from aircraft AC. But I am unsure if there is a way to measure and correct power factor in this situation?
The PFC converters I have witnessed online are AC-DC converters, using the AC input to power factor correct and provide stable DC output at high power factor. However, my converter has 243VDC input voltage. How could I use a PFC converter with this input voltage? Basically, is there a way to do PFC in a DC-DC rather than an AC-DC way?
To me it doesn't make sense as I don't really have any information regarding the AC quantities because I have a varying DC input that is rectified from aircraft AC. But I am unsure if there is a way to measure and correct power factor in this situation?