I have always understood that the term "buck-boost" referred to a particular topology of DC-DC converter that took a positive DC input voltage and created a negative DC output voltage. This term seems to also apply (loosely) to a situation where you can have a positive DC input voltage that can be either less than, equal to, or greater than the output voltage. I remember working on a SEPIC converter that had this property once upon a time, but I do not think it applies in this case.
Is this a case of the term "buck-boost" being overloaded (like a C++ operator) to actually refer to multiple things depending on context, or is there something else going on here?
Is this a case of the term "buck-boost" being overloaded (like a C++ operator) to actually refer to multiple things depending on context, or is there something else going on here?