Ko ngā tīmatanga ngohengohe (tīmata ngohengohe) he huinga tīmatanga ngohengohe me te aukati ngohengohe o te motuka, he āhuatanga tiaki hou i roto i tētahi o ngā taputapu whakahaere motuka. Ko tōna wāhanga matua e hono ana ki te pūtake hiko me ngā thyristor whakarara whakamuri motuka e toru kua utaina me tana ara iahiko whakahaere hiko. Ka taea e ia te whakamahi i ngā tikanga maha, te whakahaere i te koki kawe thyristor whakarara whakarara ki te hanga i te huringa ngaohiko whakauru motuka whakahaere kia rite ki ngā whakaritenga rerekē me te whakatutuki i ngā mahi rerekē. He rerekē rawa ngā whakamahinga o ngā hua tīmatanga ngohengohe me te kaitahuri auau. Ka whakamahia te kaitahuri auau mō ngā wāhi e hiahia ana ki te tere, ehara i te mea ka huri noa te putanga i te ngaohiko me te huri i te auau i te wā kotahi.Tīmatanga NgāwariHe kaiwhakahaere hiko tēnei mō te tīmatanga o te motuka, kāore te auau o te hiko putanga e rerekē. Ka tukuna e te pūtahuri ngā mahi tīmatanga ngohengohe katoa, engari he nui ake te utu i te tīmatanga ngohengohe, he uaua ake te hanganga. Ka whakamahia e te Tīmatanga Ngongo o te motuka he miro i waenganui i te pūtake hiko me te Tīmatanga Ngongo o te motuka whakahaere, hei whakahaere i te koki kawe thyristor, ka piki haere te ngaohiko tāuru o te motuka mai i te kore ki te mahi kua whakaritea, tae noa ki te mutunga o te tīmatanga, ka hoatu he ngaohiko motuka, arā, te tīmatanga ngohengohe. I te tīmatanga ngohengohe, ka piki haere te tere o te taipana tīmatanga motuka.