Taketake: Tohunga mō ngā Wāhanga Aukume
He whakawhiti motuhake ngā whakawhiti papatahi e whakamahi ana i te pepa parahi PCB hei takai, ā, me whai taurite tonu te hoahoa i waenga i te mahi hiko, te whakahaere wera, me ngā utu hanga. E whai ake nei ko ngā pātai me ngā whakautu matua e 20 mō te hoahoa whakawhiti papatahi PCB, e kapi ana i ngā ariā taketake, te kōwhiringa matua, te tahora takai, te whakahaere tawhā pirinoa, te hoahoa wera, me te whakatinanatanga tukanga.
1. Pātai: He aha te whakawhiti papatahi? He aha te rerekētanga matua i waenganui i tēnei me ngā whakawhiti pūmau tuku iho?
Whakautu: Ko te whakawhiti papatahi he momo whakawhiti e whakamahi ana i te pepa parahi papatahi i runga i te papa ara iahiko tānga maha-paparanga (PCB) hei takai. Ko te rerekētanga matua ko te whakamahi a ngā whakawhiti tuku iho i te waea enamel kua takaihia ki te angaanga, ko ngā takai o ngā whakawhiti papatahi he pepa parahi porowhita kua whakairohia ki runga i te papa PCB, ā, ko te matua aukume (te nuinga o te wā ko te ferrite) ka piri tika ki te wāhanga PCB. Mā tēnei hanganga ka puta ngā āhuatanga o te teitei iti (te kōtaha iti), te kiato mana teitei, me te ōritetanga tino pai.
2. Pātai: He aha ngā painga matua o te whakamahi i ngā whakawhiti papatahi PCB?
Whakautu: Ko ngā painga matua ko:
1. Te tino whai hua me te iti o te turuturu: He piri te hononga takai, ā, ko te turuturu turuturu ka taea te whakahaere i raro i te 0.2%.
2. He pai te mahi whakamarara wera: He nui ake te ōwehenga horahanga mata/rahi o te hanganga papatahi, he poto ake ngā hongere wera, ā, he ngāwari ki te whakamarara wera.
3. Te ōritetanga pai: Ka whakatauhia ngā tawhā pirinoa e te tika o te hanga PCB, ā, ka taea te whakahoki i te mahi hua, he mea tino pai mō te hanga aunoa.
4. Kōtaha iti: Kua tino whakaitihia te teitei katoa, ā, he pai mō te whakairinga mata (SMT) me ngā pūhiko hiko mō ngā waeine tino tairongo.
3. Pātai: He aha ngā wero hoahoa matua, ngā ngoikoretanga rānei o ngā whakawhiti papatahi?
Whakautu: Ko te wero matua ko:
1. Te kaha tohatoha nui: Nā te nui o te horahanga whakarara me te iti o te mokowā i waenga i ngā pepa parahi papatahi, ko te kaha pirinoa (CPS) i waenga i ngā taha tuatahi me ngā taha tuarua he nui ake i tērā o ngā whakawhiti hiko tuku iho, ka pā pea tēnei ki ngā āhuatanga EMI me te auau-tiketike.
2. Te iti o ngā hurihanga: Ko te maha o ngā paparanga PCB me te tukanga ka whakawhāiti i te tapeke o ngā hurihanga ka taea te whakatutuki, he mea e tika ana mō ngā āhuatanga he iti noa ngā hurihanga (pērā i te āhuahanga haurua piriti).
3. Te iti o te whakamahinga matapihi: He nui te wāhi e nohoia ana e te papa PCB (epoxy resin) i roto i te matapihi matua aukume, ā, he iti noa te tauwehenga whakakī parahi (tata ki te 30%).
4. Pātai: I roto i tēhea awhe auau ka mahi te whakawhiti hiko papatahi?
Whakautu: He tino pai ngā whakawhiti hiko papatahi mō ngā taiao mahi auau-teitei, e mahi ana i ngā auau mai i ngā tekau kHz ki ngā MHz. Nā tōna arataki papatahi, ka taea te whakaiti i te pānga kiri, he painga nui tōna ki te whai hua i ngā auau-teitei.
Te Kōwhiringa Matua Aukume me te Rauemi
5. Pātai: He aha ngā āhua matua aukume e whakamahia whānuitia ana mō ngā whakawhiti papatahi? Me pēhea te whiriwhiri?
Whakautu: Ko ngā matua aukume noa ko te momo-E, te momo RM, me te momo ER/ETD.
·Momo-E (pērā i te EI, EE): He iti te utu, he pai te marara o te wera, he nui te matapihi, he pai mō ngā whakamahinga au nui, engari he ngoikore te mahi tiaki.
·Momo RM (ka taea te momo): Ka taea e te pou pokapū porowhita te whakapoto i te roa o te hurihanga o te takai (te whakaiti i te ngaronga parahi), he pai te pānga tiaki-whaiaro, he iti te aukati turuturu, engari he iti noa te matapihi.
·Momo ER/ETD: I waenganui i ngā mea e rua, ka whakakotahi i ngā painga o te matapihi nui momo-E me te pou pokapū porowhita momo RM.
6. Pātai: He aha te rauemi e whakamahia ana mō te matua aukume o te whakawhiti papatahi?
Whakautu: Tata ki te katoa o ēnei e whakamahi ana i ngā rauemi aukume ngohengohe ferrite kaha-teitei, pērā i te 3F3 a Philips, 3F4, te PC40/PC95 rānei a TDK. He iti ngā ngaronga matua aukume o ēnei rauemi (ngā ngaronga hysteresis me te au eddy) i ngā auau teitei.
7. Pātai: He aha te tauwehenga whakamahinga matapihi o te matua aukume? He aha i iti iho ai te whakawhiti papatahi?
Whakautu: Ko te tauwehenga whakamahinga matapihi e pā ana ki te ōwehenga o ngā kaiārahi parahi e nohoia ana i roto i te rohe matapihi o te matua aukume. Ko ngā whakawhiti tuku iho he tata ki te 0.4, ko ngā whakawhiti papatahi he 0.25~0.3 noa iho. Nā te mea, hei tāpiri atu ki te pepa parahi, he nui hoki ngā paparanga whakamahana kapia epoxy (PP me te Matua) e nohoia ana te wāhi matapihi i roto i te papa PCB.
Te Hoahoa me te Tahora o te Whakakōpiko
8. Pātai: Me pēhea te hono i ngā takai o tētahi whakawhiti papatahi i roto i te raupapa, i te whakarara rānei i runga i tētahi PCB?
Whakautu: Ka tutuki te hononga i waenga i ngā paparanga mā roto i ngā kōhao (vias), ngā kōhao tanumia, ngā kōhao matapo rānei i runga i te PCB.
·Hononga raupapa: Whakamahia ngā vias hei hono i ngā koiri porowhita o ngā paparanga rerekē mai i te pito ki te pito hei whakanui ake i te maha o ngā hurihanga.
·Hononga whakarara: Te hono i ngā paparanga maha o ngā koiri i te whakarara hei whakanui ake i te kaha kawe iahiko, e whakamahia whānuitia ana i roto i ngā takai tuarua mō te putanga ngaohiko iti me te putanga iahiko teitei.
Pātai: He aha te hangarau "whakauru" me te "whakauru"? He aha tātou me mahi ai i tēnei?
Whakautu: Ko te whakawhanaungatanga e pā ana ki te whakanoho i te takai tuatahi (P) me te takai tuarua (S) ki roto i ngā paparanga, pērā i te whakamahi i te hanganga PSPS, SPS rānei. Ko ngā painga o te mahi pera ko: 1 Te whakaiti i te ine i te turuturu: Te whakarei ake i te hononga aukume tuatahi me te tuarua.
2. Whakaitihia te ātete AC: kia ōrite te tohatoha o te iahiko auau-tiketike i roto i te ara iahiko, ā, kia whakaitihia te ngaronga i puta mai i te pānga tata.
10. Pātai: He aha ngā pānga o ngā whakatakotoranga takai rerekē (pēnei i te wehenga P/S me te honohono) ki te ine i te turuturu me te kaha pirinoa?
Whakautu: He hononga whakaae noa tēnei.
·Tahora motuhake: he nui te uruhanga turuturu, engari he iti te kaha uruhanga pirinoa i waenga i ngā paparanga.
·Hanawiti māmā (pērā i te PSP): ka tino heke te kaha o te turuturu, engari ka piki ake te kaha o te pirinoa.
·Te whakawhitiwhiti hohonu (pērā i te PSPS): Ka taea te whakaiti i te kaha o te turuturu, engari ka taea te whakanui ake i te kaha o te pirinoa. Me mahi ngā kaihoahoa i ngā tauwhitinga i runga i ngā whakaritenga ara iahiko, pērā i te LLC e whakamahi ana i te kaha o te turuturu me te kaha whakahaere whakawhiti mārō.
11. Pātai: He aha ngā mea me mōhio i roto i te hoahoa takai PCB mō ngā tono ngaohiko teitei, iahiko teitei rānei?
Whakautu: Te au nui: Me whakamahi he pepa parahi matotoru (pēnei i te 2oz-4oz), he hononga whakarara maha-apa, me te whakamahi i ngā via whakarara maha hei kawe i te au, ā, ka whakamahia te whakamararatanga wera o waho.
·Ngaohiko teitei: Me whakarite kia rawaka te tawhiti whakamarumaru (te tawhiti toro me te āputa hiko). Hei tauira, e kī ana a IEC60950 me neke atu i te 400 μm te matotoru whakamarumaru i waenga i ngā taha tuatahi me ngā taha tuarua.
Ngā Tawhā Parasitic me ngā Āhuatanga Auautanga Teitei
Pātai: He aha te hiranga o te ine turuturu o ngā whakawhiti papatahi? Me pēhea te whakahaere?
Whakautu: Ka taea e te turuturu o te hiko te whakaputa i ngā pikinga ngaohiko ina whakawetohia te pana, ā, ka whakawhāiti i te auau tapahi auau-tiketike. I roto i ngā āhuarangi orooro pērā i te LLC, ka taea te whakamahi i te turuturu orooro hei wāhanga o te turuturu orooro. Ko ngā tikanga mō te whakahaere i te turuturu orooro ko: te whakamahi i ngā takai whakarara, te whakaiti i te matotoru o te paparanga whakamarumaru i waenga i ngā takai, me te whakahāngai katoa i ngā takai taketake me ngā takai tuarua.
13. Pātai: Me pēhea te arotau i te kaha tohatoha nui o ngā whakawhiti papatahi hei whakaiti i te EMI?
Whakautu: Ko ngā tikanga hei whakaiti i te kaha tohatoha ko te whakanui ake i te matotoru o te paparanga whakamarumaru i waenga i ngā takai tuatahi me te tuarua (engari te whakanui ake i te kaha turuturu), te whakauru i tētahi paparanga whakamarumaru whenua i waenga i ngā wāhanga tuatahi, me te arotau i te tahora takai hei whakaiti i te horahanga taupatupatu i waenga i ngā paparanga.
14. Pātai: He aha te pānga kiri me te pānga tata? Me pēhea te whakahaere i ngā whakawhiti papatahi?
Whakautu: I ngā auau teitei, ka rere te ia ki te mata o te ara iahiko (pānga kiri), ā, ka tohatohahia te iahiko e te papa aukume o ngā ara iahiko tata (pānga tata), ka piki ake te ātete AC. Ka whakamahia e ngā whakawhiti papatahi te pepa parahi papatahi me te angiangi hei ara iahiko, me te matotoru e hangaia ana kia iti iho i te hohonutanga kiri i taua auau, ka whakaitihia ai ēnei mate auau teitei.
Hoahoa me te Hangarau Wera
15. Pātai: He aha te pūtake matua o te wera mō ngā whakawhiti papatahi? Me pēhea te whakamarara i te wera?
Whakautu: Ko te wera te nuinga o te wā ka puta mai i ngā ngaronga matua aukume (ngā ngaronga hysteresis) me ngā ngaronga takai (ngā ngaronga parahi, inā koa ngā ngaronga i puta mai i ngā ātete AC). Ko te painga o te whakamararatanga wera ko te nui o te mata o te hanganga papatahi, ā, ka taea te whakamarara tika i te wera mai i te mata o te matua aukume me te pepa parahi o waho o te PCB; I te nuinga o te wā, ka taea te tāpiri i ngā whakawhiti ki ngā papa konumohe, ki ngā totohu wera rānei, ā, ka taea te whakamahi i te piripiri kawe wera hei whakarei ake i te whakamararatanga wera.
16. Pātai: He aha te pānga o te matotoru parahi me te whānui o te rārangi o te PCB ki te hoahoa? He aha te kaha kawe iahiko e taunakitia ana?
Whakautu: Ko te matotoru o te parahi te mea e whakatau ana i te kaha kawe iahiko mō ia whānui. Ko te matotoru noa o te parahi ko te 1oz (tata ki te 35 μm) me te 2oz (tata ki te 70 μm). Ko te mātotoru iahiko ka tīpakohia i waenga i te 20~50A/mm². Me whakatau te whānui o te raina i runga i te uara iahiko whai hua, te pikinga pāmahana e whakaaetia ana, me te kaha hanga PCB (pēnei i te whānui raina iti rawa/te mokowā raina).
17. Pātai: He aha te take e aro nui ai te hoahoa o te puranga PCB ki te ōritetanga?
Whakautu: Ka taea e te hanganga whakakikoruatia ōrite (me te matotoru ōrite me te tohatoha parahi) te whakataurite i ngā ahotea wera me te ahotea ā-pūkaha o te PCB i te wā o te tukanga whakakikorua, ā, ka ārai i te papa PCB mai i te piko (te whakarerekētanga o te āhua) i muri i te tukatuka, ka whakarite i te hua o te huihuinga o ngā whakawhiti me te piri o ngā matua aukume.
18. Pātai: Me pēhea te whakau i te matua aukume? He aha e kore ai e taea te whakapiri ki te mata honohono mā te kāpia?
Whakautu: Ko te whakapiri matua aukume he mea whakamahi i ngā topenga (me ngā matua aukume mokowā) me ngā whakapiri kapia epoxy. Kia tupato: Kaua rawa te whakapiri e tāpirihia ki te mata hononga (pou waenga) o te matua aukume, ki te kore ka puta he āputa hau kore e hiahiatia, ka heke te uruhanga aukume me te hikohiko. Me whakapiri te whakapiri huri noa i te taha o waho o te matua aukume.
Whakautu: 1 Whakatau whakatakotoranga: Whakatauhia te ōwehenga tahuri, te ine hiko, te mana, me te auau i runga i te āhua o te pūnaha hiko.
2. Kōwhiringa matua aukume: Whakamahia te tikanga AP (tikanga hua rohe) hei whakatau tata i te rahi o te matua aukume, ā, tīpakohia te rauemi me te āhua o te matua aukume e tika ana.
3. Te tatau i ngā takahuri: Tātaihia te maha o ngā takahuri i ngā taha tuatahi me ngā taha tuarua hei ārai i te mākūkū o te aukume
4. Te tahora o te takai: Whakaritea ngā takai ki roto i te pūmanawa PCB hei whakatau i te hanganga whakarārangi (ahakoa he whakarara, me pēhea te whakarara/raupapa).
5. Te tatau i ngā ngaronga me te pikinga pāmahana: Tātaitia ngā ngaronga parahi me te rino kia mōhio ai kei roto te pikinga pāmahana i te awhe e whakaaetia ana.
6. Tangohanga tawhā pirinoa: Aromātaihia mēnā ka tutuki i te aukume turuturu me te kaha tohatoha ngā whakaritenga mā te whakatauira, te tātai rānei.
7. Te tuhi hangarau PCB
20. Pātai: He aha ngā rerekētanga o te arotahi hoahoa o te whakamahi i ngā whakawhiti papatahi i roto i ngā whakawhiti whakamua me ngā whakawhiti whakamuri?
Whakautu:
Kaitahuri Whakamua/Piriti: Ko te mahi matua a ngā whakawhiti hiko he tuku pūngao me te wehe. Ko te arotahi hoahoa he whakaiti i te aukati turuturu (te karo i ngā pīka) me te whakaiti i ngā ngaronga. Ko te iti o te aukati turuturu e āhuatanga ana o ngā whakawhiti hiko papatahi he painga nui i konei.
Kaitahuri rere whakamuri: Ko te "kaitahuri" i konei he inductor honohono e hiahia ana ki te penapena pūngao. Nō reira, me whai āputa hau te matua aukume hei ārai i te mākū. Ko te arotahi o te hoahoa he whakahaere tika i te rahi o te āputa hau kia whiwhi ai i te aro e hiahiatia ana, me te aro atu ki te take o te pikinga o ngā ngaronga i te taha e puta mai ana i te whakatuwheratanga o te āputa hau.
Wā tuku: Maehe-16-2026
