Diode D1 connects one end of the inductor to the common point so the voltage across the
inductor can be either abo
ve or below the input voltage.
2.6 Transformer Isolated Converters
Power supplies that are intended to run directly from the AC power lines (offl ine supplies)
require a transformer to isolate the load side from the AC lines. Transformers can also
be used in power supplies where isolation is required for other reasons, such as medical
equipment use. Table 2.1 lists power range and complexity versus appropriate converter
type. This table gives a generally accepted range for each converter type. ...
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