Kariyar ƙarfin lantarki tare da sassan mutum ɗaya tare da masu canzawa a cikin ƙirar ƙarshe
Ana iya amfani da varistors na ƙarfe-oxide a cikin ƙirar tashar. An amince da su don matsakaicin ƙarfin lantarki mai aiki na mitar wutar lantarki ta sine-wave, wanda aka buga akan ɓangaren. Duk wani ƙarfin lantarki da ya fi ƙarfin da aka yarda da shi.
Ana fitar da mama lafiya cikin 25 ns. Ana amfani da Varistors don matsakaicin iko zuwa babban iko.