Laboratory simba nerubatsiro: rondedzero, zvakanaka uye midziyo nedostaka

Modern simba rinopiwa marefu simba mano pauzima kombiyuta. zvidzidzo Older akadai ATX kuramba hazvina kutorwa nehama dzazvo, pasinei nokuti upenyu hwavo haisati yakatanga. Kana iwe handizvo mudziyo ichi, zvino zvinokwanisika kuvaka murabhoritari simba zvitengeswa. Cherechedzai inofanira kubhadharwa kuti magetsi vakaomerwa mudziyo, uye mukana wayo murau pachikumbaridzo. Kakawanda, yakadaro chinoumba mabasa ave Chip-mhando TL494, sezvo kupfuura nyore mhinduro kuti kutendeuka.

Kuita rabhoritari simba wedzerai nemaoko avo pachavo

Kuti pave kurongwa muupenyu Tichadirei mhando mudziyo AT, ATX, iyo yakavakirwa TL494 IC. Zano rakadaro simba nerubatsiro unoratidzwa mufananidzo. The mudziyo inopa mukana vakaomerwa mutoro ano parameter nekuisa mamwe gudzazwi zvinoita Chip kukanganisa kuti harina kushandiswa vagadziri vaiona PC nhengo. The gudzazwi zvinosanganisirei murabhoritari simba wedzerai kuburikidza inverting amplification redunhu voltage (kunaka ukoshi). Izvi nokuchinja redunhu unoshandiswa nokuti yose connectivity mudziyo waya dzimba, uyezve, kushandisa hunobatsira zano rakadaro kunoratidza akatsiga kuita munyika kuwanda kuitika uye voltage simba zvitengeswa. Wechitatu nani anonzi zvikuru kugumbuka. Izvi zvinobvumira kushandisa imwe kuitika Switch nezvishoma nemishonga, nokudaro kudzikira kukosha chiitiko simba, zvichiguma kushanda murabhoritari simba nerubatsiro riri kushanda kwete neshungu.

Nodes kubviswa:

1. Block inotungamirwa Power anonongedzera Good.

2. Rectifiers, filters, zvose zvenyaya goho matunhu. chete goho redunhu 12 anofanira kusiya B.

3. Output oxide capacitor kunofanira kutsiviwa pane mukuru voltage ane voltage 25 V.

4. throttle anofanira rewound. Ndapota zvinomuomera kuikanganwa windings zvose ipapo muchikuvadza itsva (wiring waya dhayamita pamusoro 0.6-1 mm kuti kuzadza).

Nheyo nokushanda mudziyo

Pahwaro ari comparator, yamboshandiswa kuti vaunze mashoko "Simba" Mureza yaungana chikwata iyo inopa rairatidza muoti parameter kutirambidza mutoro ano. Neinvertiruemy voltage akapa kuna comparator chiyamuro (mutengo Proportional kuti mazano nokukura). Panguva inverting chiyamuro - duramazwi ukoshi. Chero bedzi yedu rabhoritari simba nerubatsiro riri kushanda pakudzikamisa ari voltage pa mazano neinvertiruemom kupfuura panguva inverting. Panguva goho riri comparator hunotora refu chiratidzo sandara, saka chinoratidza kuzodzimwa. Kana mudziyo haazotaurwizve Kudzikamiswa nokuda ano zvatisingakwanisi pamusoro zvinogona musiyano zvinoderedza mazano uye goho yakaderera chechetere inovhurwa. Akatungamirira mwenje, zvinoreva kuti midziyo iri kubva Kudzikamiswa muoti.

Semiconductor Chips vari dzinofambiswa maererano standby simba iri akaungana pamusoro transistor kushandura kukosha goho voltage asingadi kukanganisa kushanda ICs.

Laboratory simba nerubatsiro kubva ATX: uye zvaasingagoni

Zvakanakira vakadaro mano zvinosanganisira yakaderera mutengo wavo, sezvo yamboshandiswa kutigumbura anogona kuwanikwa pose pose. Ivo ane zvose zvakafanira zvinoriumba, mukuru pakati riri kurova kwemwoyo transformer. Uyezve, simba wedzerai chikwata ane zvakasiyana nouremu unhu. Zvazvakaipira ndivo guru-siyana mukuru kakawanda ruzha, izvo ichikutadzisa kushandiswa.