using discharge tubes with control electrode or semiconductor devices with control electrode (H02M3/07 takes precedence)

Full Title

Conversion of DC power input into DC power output > without intermediate conversion into AC > by static converters > using discharge tubes with control electrode or semiconductor devices with control electrode (H02M3/07 takes precedence)

Child Classifications

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• H02M 3/125 using devices of a thyratron or thyristor type requiring extinguishing means
• H02M 3/145 using devices of a triode or transistor type requiring continuous application of a control signal