Akenshi umva "guhagarara ni ngombwa cyane", "ukeneye gushimangira igishushanyo mbonera" nibindi.Mubyukuri, muri PCB imiterere ya booster DC / DC ihindura, igishushanyo mbonera utabanje gutekereza neza no gutandukana namategeko shingiro niyo ntandaro yikibazo.Menya ko ingamba zikurikira zigomba gukurikizwa byimazeyo.Mubyongeyeho, ibyo bitekerezo ntabwo bigarukira gusa kubateza imbere DC / DC.

Kwihuza

Ubwa mbere, kugereranya ibimenyetso bito byerekana imbaraga hamwe nubutaka bigomba gutandukana.Ihame, imiterere yubutaka ntibukeneye gutandukana kurwego rwo hejuru hamwe no kurwanya insinga nke hamwe no gukwirakwiza ubushyuhe bwiza.

Niba amashanyarazi atandukanijwe kandi agahuzwa ninyuma binyuze mu mwobo, ingaruka zo kurwanya umwobo hamwe na inductor, igihombo n urusaku bizarushaho kwiyongera.Kurinda, gukwirakwiza ubushyuhe no kugabanya igihombo cya DC, imyitozo yo gushiraho hasi murwego rwimbere cyangwa inyuma ni ugufasha gusa.

Iyo igikoresho cyo hasi cyashizweho muburyo bwimbere cyangwa inyuma yikibaho cyumuzunguruko, hagomba kwitabwaho cyane cyane kumashanyarazi yumuriro hamwe n urusaku rwinshi rwumuvuduko mwinshi.Niba igice cya kabiri gifite imbaraga zihuza zagenewe kugabanya igihombo cya DC, huza urwego rwo hejuru kurwego rwa kabiri ukoresheje byinshi unyuze mu mwobo kugirango ugabanye inzitizi yinkomoko.

Mubyongeyeho, niba hari aho bahurira kumurongo wa gatatu hamwe nubutaka bwa signal kumurongo wa kane, ihuriro riri hagati yumuriro wamashanyarazi nigice cya gatatu nicya kane bihujwe gusa nubutaka bwamashanyarazi hafi ya capacitor yinjira aho urusaku rwinshi rwo guhinduranya urusaku ni bike.Ntugahuze imbaraga zubutaka zisakuza cyangwa diode y'ubu.Reba igishushanyo cy'igice gikurikira.

Ingingo z'ingenzi:
1.PCB imiterere yubwoko bwa DC / DC ihindura, AGND na PGND bakeneye gutandukana.
2.Mu ihame, PGND muburyo bwa PCB ya booster DC / DC ihindura igizwe kurwego rwo hejuru nta gutandukana.
3.Mu kuzamura DC / DC ihindura imiterere ya PCB, niba PGND itandukanijwe kandi igahuzwa inyuma binyuze mu mwobo, igihombo n urusaku biziyongera bitewe ningaruka zo kurwanya umwobo na inductance.
4.Mu miterere ya PCB ya booster DC / DC ihindura, mugihe ikibaho cyumuzunguruko cyinshi gihujwe nubutaka murwego rwimbere cyangwa inyuma, witondere isano iri hagati yinjirira hamwe n urusaku rwinshi rwumuvuduko mwinshi hindura na PGND ya diode.
5.Mu miterere ya PCB ya booster DC / DC ihindura, hejuru ya PGND ihujwe na PGND y'imbere binyuze mumyobo myinshi inyuramo kugirango igabanye impedance nigihombo cya DC
6.Mu miterere ya PCB ya booster DC / DC ihindura, ihuriro hagati yubutaka rusange cyangwa ibimenyetso byubutaka hamwe na PGND bigomba gukorwa kuri PGND hafi ya capacitor isohoka hamwe n urusaku ruke rwumuvuduko mwinshi, ntabwo biri kumurongo winjira hamwe urusaku rwinshi cyangwa PGN hafi ya diode.