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PCE
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DIFF Subgroup
H02M 5/27

for conversion of frequency

Introduced: July 1974

Full Title

Full titles differ between systems:

IPC:

Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases > without intermediate conversion into DC > by static converters > using discharge tubes with control electrode or semiconductor devices with control electrode > using devices of a thyratron or thyristor type requiring extinguishing means > for conversion of frequency

CPC:

Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases > without intermediate conversion into DC > by static converters (controlling transformers, reactors or choke coils, e.g. by tap changing H02P13/00) > using discharge tubes with control electrode or semiconductor devices with control electrode > using devices of a thyratron or thyristor type requiring extinguishing means > for conversion of frequency

Of 3 combined children, 0 exist in both systems.

3 codes are CPC-only extensions.

Child Classifications

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