• 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 systems; conversion of dc or ac input power into surge output power; control or regulation thereof
• H02M 3/155 - 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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only

Patent holdings for IPC class H02M 3/155

Total number of patents in this class: 3466

10-year publication summary

Principal owners for this class