Ngā Painga me ngā Huakore o te Whakaiti i te Mata o Mua me te Whakaiti i te Mata o Muri

Ko te whakaitiiti mata-mua (te whakaitiiti tapahi-wāhanga-mua) me te whakaitiiti mata-muri (te whakaitiiti tapahi-wāhanga-muri) he hangarau whakaitiiti e rua e ahu mai ana i te whakahaere-wāhanga, e whakamahia nuitia ana i roto i te rama LED me ngā pūnaha rama tuku iho. Kei raro nei he tātaritanga whakatairite o ngā mea e rua.whakapōuringā hangarau:

1. Te Mātāpono Mahi

Te Whakaiti i te Āhua Matatau:

Ka puta te tapahi ngaohiko i te tīmatanga o ia haurua-ngaru o te huringa AC (wāhanga 0°). Mā te whakaroa i te whakaoho i te wā kawe hiko o ngā thyristors (arā, te whakarerekē i te koki kawe hiko), ka whakahaeretia te ngaohiko whai hua puta noa i te kawenga, ā, ka whakarerekē i te kanapa. Hei tauira, ko te nui ake o te whakaroa i te koki whakaoho, ko te poto ake o te wā kawe hiko, ā, ko te iti iho o te kanapa.

Te Whakaiti i te Mata o te Aroturuki:

Ka tata te mutunga o ia haurua-ngaru o te huringa AC (wāhanga 180°) te tapahi ngaohiko. Mā te whakaweto wawe i te wā kawe o ngā MOSFET, IGBT rānei, ka tutuki te whakaiti i te kanapa. Hei tauira, ko te wawe o te wā whakaweto, ko te iti iho o te ngaohiko whai hua, ā, ko tewhakaititia te mārama.

2. Ngā Wāhanga Matua

Te Whakaiti i te Āhua Matatau:

E whakamahia ana e ia ngā thyristor (SCR/Triac) hei taputapu whakawhiti, he taputapu whakahaere-haurua (ka taea anake te whakahaere i te kawe hiko, kāore e taea te whakaweto).

Te Whakaiti i te Mata o te Aroturuki:

E whakamahi ana i ngā MOSFET, i ngā IGBT rānei hei taputapu whakawhiti, he taputapu e tino whakahaerehia ana (ka taea te whakahaere kaha i te kawe hiko me te whakaweto).

3. Whakataurite Mahi

4. Whakarāpopototanga o ngā Painga me ngā Huakore

Ngā Painga Whakaiti Matatau:

He iti te utu, he hangarau pakari, e hototahi ana ki ngā pūnaha whakaitiiti thyristor o nāianei (hei tauira, te incandescent tuku iho)ngā whakamaroke).

Ngā Huakore o te Whakaiti i te Marama:

Tērā pea ka kero te rama LED, ka pokanoa ki te hikohiko, ā, kāore pea e tino tineia i raro i ngā kawenga iti.

Ngā Painga Whakaiti i te Mata o te Ara:

He maeneene te whakaiti i te kanapa, kāore e kimo, e tautoko ana i ngā kawenga capacitive (hei tauira, ngā taraiwa LED), ā, ka taea te whakaweto katoa.

Ngā Huakore o te Whakaiti i te Mata o te Ara:

He nui ake te utu, he iti ake te urunga ki te mākete, e whakamahia ana mō te whakaiti i te rama kotahi te mana iti.

5. Ngā horopaki tono

Te Whakaiti i te Āhua Matatau:

He pai mō ngā kaupapa whakahou rama tuku iho (hei tauira, te whakakapi i ngā pūangi rama mura) me ngā pūnaha rama arumoni kaha-teitei (me tutuki i ngā whakaritenga kawenga iti rawa).

Te Whakaiti i te Mata o te Aroturuki:

He pai mō ngā rama LED iti te mana (hei tauira, ngā rama tēpu, ngā rama takitahi o te whare) me ngā āhuatanga e hiahia ana kia teitei te kounga o te whakaiti i te kanapa (hei tauira, ngā whare taonga, ngā hōtēra).

6. Ngā Auahatanga Whakawhanaketanga Hangarau

Ko te whakaitiiti mata-mua tonu te mea nui i te mākete nā te mea he pai ake te utu, engari kei te piki haere te rongonui o te whakaitiiti mata-muri i roto i ngā tono whakaitiiti tino tika. Engari me aro atu ngā mea e rua ki te hototahi o ngā taraiwa, nā te mea ka arahi pea te whakaranu i a rātou ki te rahunga whakaitiiti, ki te kino rānei o te taputapu.

7. Whakamutunga

He pai, he huakore hoki te whakaiti rama mata-mua me te whakaiti rama mata-muri, ā, he pai mō ngā āhuatanga tono rerekē. He iti te utu, he hototahi hoki te whakaiti rama mata-mua, ā, he mea tino pai mō ngā whakahoutanga rama tuku iho me ngā pūnaha mana-nui. Ka tukuna e te whakaiti rama mata-muri he whakaiti maeneene, kāore he kimo, ā, he pai mō ngā hiahia whakaiti rama-iti me te tino tika. I te whanaketanga o te hangarau, ka piki haere te whakamahinga o te whakaiti rama mata-muri i roto i ngā mara whakaiti rama-nui.