Momwe mungachotsere cholakwika pagawo lowongolera la wapakatikati ng’anjo yamoto? Tsatanetsatane debugging masitepe

Bungwe lolamulira la ng’anjo yapakati pafupipafupi ndilofunika kwambiri pamene ng’anjo yapakatikati ikugwira ntchito. Kuyambira kusankha kupita kuwotcherera board board, kuwongolera zolakwika ndi kuyesa kukalamba, ndichinthu chofunikira kwambiri. Pakati pawo, ogwiritsa ntchito ambiri amanyalanyaza ntchito yowonongeka ya bolodi yolamulira, ndipo sadziwa momwe angasinthire bolodi loyang’anira ng’anjo yapakatikati. Today ine mwachidule zogwirizana zili za ulamuliro gulu debugging njira kukufotokozerani, tiyeni tione pamodzi.

1. Njira zowonongeka za gawo lowongolera la gulu lowongolera la ng’anjo yapakati pafupipafupi

1. Chifukwa cha chitetezo cha debugging, mlatho wa inverter uyenera kuzimitsidwa musanayambe kukonza.

2. Kupereka mphamvu kwa magawo atatu kungaperekedwe, mosasamala kanthu za ndondomeko ya gawo, ndipo fufuzani ngati pali lipoti la alamu lolephera. Ngati ndi choncho, fufuzani ngati fusesi yothamanga yomwe ikubwera yawonongeka.

3. Tembenuzani potentiometer “yopatsidwa” pagawo kuti ikhale yozungulira kwambiri, mawonekedwe a magetsi a DC ayenera kumasulidwa, ndipo mitu yonse ya 6 ili mkati. chosonyeza panthawiyi Pafupifupi 380V. Kenako tembenuzirani potentiometer “yopatsidwa” pagawo loyang’ana molunjika kuti ikhale yaying’ono, mawonekedwe amagetsi a DC atsala pang’ono kutsekedwa, ndipo ngodya A ili pafupifupi madigiri 530 panthawiyi. Mawonekedwe a DC waveform ayenera kukhala mosalekeza komanso osalala pamagawo onse osinthika.

4. Pamene mphamvu ikulephera, gwirizanitsani mlatho wa inverter kuti inverter iyambitse kugunda kwa mtima, ndi kuchotsa katundu wotsutsa pa doko la mlatho wokonzanso. Tembenuzani “W1VF” yochepetsera potentiometer pa bolodi yozungulira mozungulira mpaka kumapeto, (pamene inverter overvoltage imapezeka panthawi yokonza zolakwika, ikhoza kupereka chitetezo cha overvoltage). Kusinthana pagawo lalikulu lowongolera kumayikidwa pa ON, ndipo potentiometer “yopatsidwa” pagawo imazungulira mozungulira.

5. Mutatha kuyatsa kwa masekondi pang’ono, tembenuzirani potentiometer “yopatsidwa” pa gulu mozungulira pang’onopang’ono kuti muwonjezere. Panthawi imeneyi, mlatho wa inverter udzawonekera m’maboma awiri ogwira ntchito, wina ndi mlatho wa inverter oscillating, winayo ndi mlatho wa inverter. Chofunikira panthawiyi ndi kugwirizana kwachindunji kwa mlatho wa inverter. Ngati inverter mlatho mu oscillating boma, gawo la wapakatikati pafupipafupi voteji thiransifoma akhoza kusinthidwa mu mkhalidwe wa kulephera mphamvu, ndiye linanena bungwe mzere wapakatikati pafupipafupi voteji thiransifoma 20V mapiritsi akhoza kusintha. Idzayamba kunjenjemera. Pogwira ntchito pang’onopang’ono kutembenuza potentiometer “yopatsidwa” pagawo lalikulu, tcherani khutu ku kuyankha kwa ammeter. Ngati chizindikiro cha ammeter chikuwonjezeka mofulumira, muyenera kutembenuza potentiometer “yopatsidwa” mofulumira. ,

6. Panthawiyi, zimasonyeza kuti pali vuto ndi dera lachitsanzo lamakono, ndipo dongosololi liri mu chikhalidwe chotseguka chotseguka. Onani ngati thiransifoma yapano ndiyolumikizidwa. Kuchita bwino ndikuti pamene potentiometer “yopatsidwa” imawonjezeka pang’onopang’ono, chizindikiro cha ammeter chimawonjezekanso. Pamene potentiometer “yopatsidwa” imasiya kuzungulira, chizindikiro cha ammeter chikhoza kuyima pamlingo wina.

7. Ngati pali chodabwitsa, tembenuzirani potentiometer “yopatsidwa” pagawo mozungulira kuti chisonyezero cha ammeter chikhale pafupi ndi 50% ya mtengo wake. Guluu wamakono voltmeter amayesa voteji pakati pa ma terminals atatu. Ma voltages atatu ayenera kukhala pafupifupi ofanana. Ngati kusiyana kuli kwakukulu kwambiri, zikutanthauza kuti terminal yomwe ili ndi dzina lomwelo la thiransifoma yamakono imalumikizidwa molakwika. Iyenera kukonzedwa, mwinamwake izo zidzakhudza ntchito yachibadwa ya olamulira panopa. .

8. Pitirizani kutembenuza potentiometer “yopatsidwa” pagawo mozungulira mpaka kumapeto, chisonyezero cha ammeter chiyenera kukhala pafupi ndi mtengo wovotera, ndikusintha panopa pa bolodi lalikulu loyang’anira mozungulira kuti mudyetse potentiometer yochepetsera kupanga DC. ammeter akuwonetsa zomwe zidavotera pano. Kukhazikitsa kwazomwe zidavotera kwamalizidwa. Mwanjira iyi, kukonzanso kwa mlatho wokonzanso kumatsirizika, ndipo kukonzanso kwa mlatho wa inverter kumatha kuchitika.

9. Pamene mphamvu ya malo ochotserako sichitha kupereka chiwerengero chamakono cha chipangizochi, kukhazikitsidwa kwa ndondomeko yamakono kungathe kuchitidwa pamene malo akugwira ntchito mokwanira. Komabe, muyenera kudziwa kaye ngati lupu yaposachedwa yachitsanzo ikugwira ntchito bwino pakali pano.

Chachiwiri, debugging masitepe a inverter mbali ya gulu ulamuliro wa wapakatikati pafupipafupi ng’anjo

1, ma calibration pafupipafupi tebulo

DIP -2 yosinthira pa bolodi lalikulu lowongolera imayikidwa pa ON, DIP -3 imayikidwa pa OFF, ndipo potentiometer “yopatsidwa” pagawo imatsitsidwa motsata wotchi. Lumikizani oscilloscope ku chubu cha Q5 kapena Q6, yesani mayendedwe ena osangalatsa a inverter trigger pulse (ma frequency ena osangalatsa amatha kusinthidwa ndi FMX ndi DIP-1), sinthani: W6 FHZ “konzani bwino potentiometer kuti mupange kuwerenga kwafupipafupi mita Zimayenderana ndi zomwe zimayesedwa ndi oscilloscope. Ngati mphamvu yapakati yapakati imagwiritsa ntchito mita yapadera yapakati pafupipafupi, sitepe iyi yochotsa zolakwika ikhoza kuchotsedwa.

2, inverter yoyambira

(1) Choyamba, fufuzani ngati chipata cha inverter thyristor chikugwirizana bwino, komanso ngati kuwala kwa LED pa gawo lomaliza la inverter ndikwachilendo. Ngati sichiwala, zikutanthauza kuti ma terminal E ndi C a siteji ya inverter amasinthidwa; ndiye chachikulu ulamuliro bolodi Chotsani kugwirizana kunja kwa UA chapamwamba, ndi kuwona ngati LED inverter siteji kuti kuzimitsidwa ndi diagonal udindo wa inverter mlatho.

(2) Tembenuzani DIP-2 ya chosinthira cha DIP pa bolodi lalikulu lowongolera kupita pa ON pomwe ndi DIP-3 pamalo oti OFF, tembenuzirani potentiometer “yopatsidwa” pagawo mpaka kumapeto, ndikusintha “W5” kuyatsa. gulu lowongolera. FMAX “Fine-tuning potentiometer ndi DIP-1, imapangitsa kuti chisangalalo chikhale chokwera kuposa 1.4 nthawi za tank circuit resonance frequency, “W3MAX” ndi “W4MIN” potentiometer yokonza bwino imatembenuzidwa pakati. Tembenuzirani potentiometer “yopatsidwa” pagawo motsatana ndi kuchuluka kwakukulu, ndiyeno mafupipafupi ake osangalatsa amayamba kusesa kuchokera pamwamba mpaka pansi. Mlatho wa inverter umalowa m’malo ogwirira ntchito ndikuyamba kunjenjemera.

(3) Ngati sichikugwedezeka, chidzawonetsedwa pamene chimapangitsa chizindikirocho kuchita zinthu zobwerezabwereza pafupipafupi, zomwe zingathe kusintha gawo la thiransifoma yamagetsi yapakati, ndiko kuti, kutembenuza mzere wotuluka wa 20V intermediate frequency voltage transformer. Ngati mzere wotuluka wa 20V wokhotakhota wapakati pafupipafupi voltage wosinthira wasinthidwa, umalepherabe kuyamba. Panthawiyi, muyenera kutsimikizira ngati ma frequency a resonance a dera la tank ndi olondola. Mukhoza kugwiritsa ntchito mita ya capacitance / inductance kuti muyese mphamvu ya kutentha kwa mpweya ndi inductance ya inductor. Werengani ma frequency a resonant a dera la thanki. Pamene ma frequency resonant a dera la thanki ali mumtundu wa 0.6 mpaka 0.9 wa ma frequency osangalatsa, ziyenera kukhala zosavuta kuyamba. Chotsatira ndikuwunika ngati inverter thyristor yawonongeka.

3, ikani ngodya yakutsogolo ya kutsogolo kwa kutsogolo

(1) Inverter ikayamba kugwedezeka, mutha kuchita ntchito yoyika mbali yakutsogolo ya inverter. Tembenuzani chosinthira cha DIP DIP-2 pamalo a ON ndi DIP-3 pamalo oti OFF. Pulser imayang’ana mawonekedwe a 100V mafunde a voltage transformer ndikusintha “W4MIN” yokonza bwino potentiometer pa bolodi lalikulu lowongolera kumapangitsa kuti gawo losinthika loyang’anire mozungulira 25 °. Panthawiyi, chiŵerengero cha voteji yapakati pamagetsi a DC ndi pafupifupi 1.3.

(2) Tembenuzani kusintha kwa DIP-3 ku malo a ON kachiwiri, sinthani “W3 MAX” yochepetsera potentiometer pa bolodi lalikulu lolamulira, ndikuyika kutsogolo kwa gawo lotembenuzidwa. Malinga ndi ma voliyumu apakati apakati pafupipafupi a 750V, mbali yosinthira yosinthira imayenera kukhala pafupifupi 42 °. Panthawiyi, chiŵerengero cha voteji yapakati pamagetsi a DC ndi 1.5.

(3) Ngati pali mbali yayikulu kwambiri yakutsogolo ya inverter panthawi yakusintha, onani ngati ma frequency a tank circuit resonance ndi otsika kwambiri.

4. Kukhazikitsa kwa voliyumu yovotera

Khazikitsani ma voliyumu omwe adavoteledwa pansi pa katundu wopepuka, ikani chosinthira cha DIP DIP-2 pa bolodi lalikulu loyang’anira kupita ku ON pomwe ndi DIP-3 ku OFF malo. “Sinthani potentiometer molunjika, ndipo mlatho wa inverter umagwira ntchito. Pitirizani kutembenuza potentiometer “yopatsidwa” pagawo motsatira wotchi kuti muwonjezere. Panthawiyi, mphamvu yamagetsi yapakati pakatikati imakhala pafupi ndi mtengo wake. Sinthani “W1VF” yokonza bwino potentiometer motsatana ndi wotchi kuti voteji yapakatikati ifike pamtengo wovotera.