H ELECTRICITY
H02 GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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
7/00 Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
H02M7/42 Conversion of DC power input into AC power output without possibility of reversal
H02M7/44 by static converters
H02M7/48 using discharge tubes with control electrode or semiconductor devices with control electrode
H02M7/505 using devices of a thyratron or thyristor type requiring extinguishing means
H02M7/515 using semiconductor devices only
H02M7/523 with LC-resonance circuit in the main circuit