Igishushanyo Cyibanze cya DC Imizigo ya elegitoroniki

Murukurikirane rw'umuzunguruko waDC umutwaro wa elegitoroniki, ikigezweho kuri buri ngingo ni kimwe, kandi umuzenguruko ukeneye gukorana nigihe gihoraho.Mugihe cyose ikigezweho kinyura mubice bimwe bigenzurwa murukurikirane rwumuzunguruko, ibyasohotse bihoraho tugenzura birashobora kugerwaho.

Inzira yoroheje ihoraho yumuzunguruko, mubisanzwe ikoreshwa mubisabwa bifite imbaraga nke nibisabwa bike.Mubindi bikorwa, uyu muzunguruko nta mbaraga ufite, nka: iyo kwinjiza voltage ari 1V naho ibyinjira ni 30A,

Iki gisabwa ntigishobora kwemeza akazi na gato, kandi ntabwo byoroshye cyane ko umuziki uhindura ibisohoka.

Imwe mumurongo ukunze gukoreshwa kumuzunguruko uhoraho, uruziga rworoshe kubona indangagaciro zihamye kandi zukuri, R3 nicyitegererezo, kandi VREF nikimenyetso cyatanzwe.

Ihame ryakazi ryumuzunguruko ni, ryahawe ikimenyetso VREF: Iyo voltage kuri R3 iri munsi ya VREF, ni ukuvuga, -IN ya OP07 iri munsi ya + IN, umusaruro wa OP07 uriyongera, kuburyo MOS yiyongera n'ubu R3 iriyongera;

Iyo voltage kuri R3 iruta VREF, -IN iruta + IN, na OP07 igabanya ibisohoka, nayo igabanya umuyaga kuri R3, kuburyo amaherezo umuzunguruko ukomeza kubikwa kumurongo uhoraho, ari nako umenya guhoraho imikorere;

Iyo VREF yatanzwe ari 10mV na R3 ni 0.01 ohm, imiyoboro ihoraho yumuzunguruko ni 1A, agaciro gahoraho karashobora guhinduka muguhindura VREF, VREF irashobora guhindurwa na potentiometero cyangwa chip ya DAC irashobora gukoreshwa mugucunga ibyinjijwe na MCU,

Ibisohoka bigezweho bishobora guhindurwa nintoki ukoresheje potentiometero.Niba DAC yinjije ikoreshwa, igenzurwa na digitale ihoraho ya elegitoroniki irashobora kugerwaho.Imiterere ihamye

Shiraho ubugari buhamye n'uburebure kumurongo wibikoresho.Inyuma irashobora gushyirwaho.Irashobora guhuza neza ishusho yinyuma ninyandiko hanyuma igakora icyitegererezo cyawe.

Kugenzura imizunguruko:

Umuyoboro uhoraho wa voltage

Byoroheje bihoraho byumuzunguruko, koresha diode ya Zener.

Iyinjiza ya voltage igarukira kuri 10V, kandi umuzenguruko uhoraho wa voltage ningirakamaro cyane mugihe ukoreshwa mugupima charger.Turashobora guhindura buhoro buhoro voltage kugirango tugerageze ibisubizo bitandukanye bya charger.

Umuvuduko uri kuri tube ya MOS ugabanijwe na R3 na R2 hanyuma woherezwa muri amplifier ikora IN + kugirango ugereranye nagaciro katanzwe.Nkuko bigaragara ku gishushanyo, iyo potentiometero iri kuri 10%, IN- ni 1V, noneho voltage kumuyoboro wa MOS igomba kuba 2V.

Umuzenguruko uhoraho

Kubikorwa bihoraho byo kurwanya, muri bimwe bigenzurwa numubareimizigo ya elegitoroniki, ntamuzunguruko udasanzwe wateguwe, ariko ikigezweho kibarwa na voltage yinjira yagaragajwe na MCU hashingiwe kumuzunguruko uhoraho, kugirango ugere ku ntego yumurimo uhoraho wo kurwanya.

Kurugero, mugihe ihora irwanya ni 10 oms, kandi MCU ikamenya ko kwinjiza voltage ari 20V, bizagenzura ibyasohotse kugirango bibe 2A.

Nyamara, ubu buryo bufite igisubizo gahoro kandi burakwiriye gusa mubihe aho ibyinjira bihinduka buhoro kandi ibisabwa ntabwo biri hejuru.Umwuga uhorahoimizigo ya elegitoronikibigerwaho nibikoresho.

Umuyoboro w'amashanyarazi uhoraho

Imikorere yimbaraga zihoraho Benshiimizigo ya elegitoronikiBishyirwa mubikorwa byumuzunguruko uhoraho.Ihame ni uko MCU ibara ibisohoka bikurikije agaciro kashyizweho nyuma yo gutoranya voltage yinjira.