大虾们，英文文献翻译一下

起码要读得通啊。
The switching regulator operates the power devices in
the full-on and cutoff states. This then results in either
large currents being passed through the power devices
with a low “on” voltage or no current flowing with high
voltage across the device. This results in a much lower
power being dissipated within the supply. The average
switching power supply exhibits efficiencies of between
70 to 90 percent, regardless of the input voltage.
Higher levels of integration have driven the cost of
switching power supplies downward which makes it an
attractive choice for output powers greater than 10 watts
or where multiple outputs are desired.
Basic Converters
Forward-Mode Converter Fundamentals
The most elementary forward-mode converter is the
Buck or Step-down Converter which can be seen in
Figure 1. Its operation can be seen as having two distinct
time periods which occur when the series power s

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