• All sections
• H - Electricity
• H02M - Apparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systemsconversion of dc or ac input power into surge output powercontrol or regulation thereof
• H02M 5/297 - 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 triode or transistor type requiring continuous application of a control signal for conversion of frequency

Patent holdings for IPC class H02M 5/297

Total number of patents in this class: 190

10-year publication summary

Principal owners for this class