E ai ki tekaihanga motuka wiri, te kaupapa mahi o temotuka hiko-ā-hikoKo te kaupapa matua ko te whakarerekē i te kaha hiko tauutuutu i hangaia e te arataki i roto i te pōkai anga hei kaha hiko iahiko tika ina tangohia mai i te pito paraihe e te kaitahuri me te mahi kaitahuri o te paraihe.
Mai i te mahi whakawhitiwhiti hei whakamārama: kāore te paraihe e tāpiri i te ngaohiko dc, me te nekehanga matua e tōia ana te armature i te hurihanga tere pumau i te taha maui, ka tapahia e ngā taha e rua o te koiri te raina kaha aukume i raro i te rerekētanga o te pou aukume, ā, i roto i te mea i hangaia ai te kaha hikohiko e te whakaawe, ka whakatauhia te ahunga kaha hikohiko e ai ki te ture ringa matau.
I te mea ka hurihuri tonu te anga, me tuku te ara iahiko kawe-ia ki ngā taha o te koiri ab me CD i roto i te papa aukume hei tapahi tauutuutu i ngā rārangi kaha i raro i ngā pou N me S, ahakoa he tauutuutu te ahunga o te kaha hiko i puta mai i ia taha o te koiri me te koiri puta noa.
He kaha hiko tauutuutu te kaha hiko whakaoho i roto i te koiri, ko te kaha hiko ia i te pito o te paraihe A me te B he kaha hiko au tika A.
Nā te mea, i roto i te tukanga hurihuri o te anga, ahakoa te wāhi e tahuri ai te anga, nā te mahi a te commutator me te brush commutator, ko te kaha hiko e whakaohohia ana e te paraihe A mā roto i te mata commutator ko te kaha hiko tonu i te taha o te koiri e tapahi ana i te rārangi aukume n-pou. Nō reira, he pai tonu te polarity o te paraihe A.
Waihoki, he pōraruraru kino tonu te paraihe B, nō reira ka taea e te pito paraihe te arahi ki te kaha hiko pā o te ahunga pumau engari he rerekē te rahi. Mena ka whakanuia te maha o ngā koiri i raro i ia pou, ka taea te whakaiti i te nekehanga o te wiri pā, ā, ka taea te whiwhi i te kaha hiko dc.
Koinei te mahi a ngā motuka dc. E whakaatu ana hoki ko te motuka dc-iti he kaihanga ac me te commutator.
E ai ki te whakaurunga o ngā kaihanga motuka wiri, mai i te āhuatanga hikohiko taketake, ka taea e te motuka dc te mahi hei motuka e rere ana, ka taea hoki te whakahaere hei miihini whakaputa hiko, engari he rerekē ngā here.
I ngā pito paraihe e rua o te motuka hiko-ā-hiko, tāpirihia te ngaohiko hiko-ā-hiko, whakauruhia te kaha hiko ki roto i te anga, ka puta te kaha miihini mai i te pou motuka, ka tōia ngā mīhini whakaputa, te kaha hiko ki te kaha miihini, ka huri hei motuka;
Mena ka whakamahia te pūwhakatere matua hei tō i te anga o te motuka hiko-ā-hiko, ā, kāore te paraihe e tāpiri i te ngaohiko hiko-ā-hiko, ka taea e te pito paraihe te arahi ki te kaha hiko-ā-hiko hei pūtake hiko-ā-hiko, ka taea te whakaputa i te pūngao hiko. Ka hurihia e te motuka te pūngao miihini hei pūngao hiko, ka noho hei motuka whakaputa hiko.
Ko te mātāpono ka taea e te motuka kotahi te mahi hei motuka hiko, hei miihini whakaputa hiko rānei. I roto i te ariā motuka ka kiia ko te mātāpono whakahurihuri.
Tērā pea ka pai koe ki:
Wā tuku: 31 o Ākuhata-2019
