Transformers-yada soo noqnoqonaya waxaa inta badan loo isticmaalaa sida koronto beddelka sare ee sahayda korantada ee isbedbedelka badan, sidoo kale waxaa loo isticmaalaa sida koronto beddelka sare ee sahayda korantada ee soo noqnoqda sare iyo mashiinnada alxanka inverter-ka sarreeya.Marka loo eego inta jeer ee shaqada, waxaa loo qaybin karaa dhawr jeer oo kala duwan: 10kHz-50kHz, 50kHz-100kHz, 100kHz~500kHz, 500kHz~1MHz, iyo in ka badan 1MHz.Marka laga hadlayo awoodda gudbinta oo aad u weyn, aaladaha korontada guud ahaan waxay isticmaalaan IGBTs.Sababtoo ah ifafaalaha dabada ee hadda daminta ee IGBT, inta jeer ee hawlgalka ayaa aad u hooseeya;Haddii awoodda gudbintu ay yar tahay, MOSFET-yada waa la isticmaali karaa, inta jeer ee hawlgalka waa mid aad u sarreeya.