سوال ۱۹ کنکور ارشد مهندسی برق ۱۴۰۰

PASSAGE 1 (excerpt):

A photovoltaic panel used as an energy source is very capricious, because the power of the electric current obtained from the panel will depend on the intensity of the incident light. Additionally, the load current also remains an important factor. […]

Usually, users of the power network expect stable voltage, as they do not want to worry about its fluctuations. If, for example, it is 12 V DC, then changes are expected to be rather small, 2-3% of the nominal value at the most. Freely available energy sources are rarely capable of providing such power supply conditions. Therefore, properly constructed voltage converters are used as the intermediary between these sources and the user.

Unlike "standard" DC/DC converters for power supply - and depending on the target application - converters working with renewable energy sources must offer the right parameters to match the "caprices" of the source. The most important of these are a wide range of input voltages, suitable input resistance and high breakthrough voltage between input and output, usually at least several hundred volts.

Question: It can be inferred from the passage that standard DC/DC converters are «..........».