Ukuze uhlole izinga lezikhulumi, ulwazi lokuzwa luyingxenye ebalulekile, eyaziwa nangokuthi ulwazi lwekhwalithi yomsindo. Kunezindlela eziningi zokuthuthukisa ikhwalithi yomsindo, njengokwandisa amandla okukhiphayo we-amplifier yamandla omsindo kusuka kumjikelezo we-elekthronikhi, ukunciphisa ukuhlanekezela; ukulungisa imvamisa yokuphendula ukuze kunxeshezelwe ukushoda kwamaphoyinti athile efrikhwensi yesipika noma umgodi, nokunye. Ukuhlukaniswa kwamafrikhwensi kuyindlela ephumelela kakhulu yokuthuthukisa ikhwalithi yomsindo. Ngokuqondene nemvamisa ephansi, i-mid-frequency, futhi mhlawumbe izipikha zefrikhwensi ephezulu ezinamabhendi amafrikhwensi amancane, kuhle kakhulu ukwenza, futhi umphumela nawo muhle kakhulu. Nokho, kunzima kakhulu ukwenza isipika esinebhendi yefrikhwensi egcwele engu-20Hz～20kHz yomsindo, futhi kungase kudinge izinto ezibiza kakhulu ukwenza isipikha sobubanzi obugcwele sibe nomthelela ongcono. Ukukhetha inhlanganisela yeshaneli engu-2.1 kungokwenkambu ye-electronic crossover futhi kuyindlela engaguquki yokuthuthukisa ikhwalithi yomsindo wezipikha. Okufanayo kuyiqiniso ngezipikha ze-bluetooth eziphathwayo. Ukwenza izipikha zesiteshi ezingu-2.1 futhi kuyindlela enhle yokuthuthukisa ikhwalithi yomsindo. Ikakhulukazi umuzwa wokulalela womsindo ophansi oshaqisayo kunzima ukuwuqhathanisa namashaneli amabili noma isikhulumi esisodwa.

Ngokusekelwe ohlelweni lwesisombululo sesipika se-bluetooth se-CS8611E single-chip mobile 2.1-channel, ibhethri ye-lithium engamaseli amabili ixhunywe ochungechungeni ngo-8.4V njengomthombo wamandla, kanye ne-boost chip CS5036E ikhushulelwa ku-12V ukuze inike amandla i-CS8611E ukuze iqedele u-20W. +2×10W okukhiphayo; kanye ne-CS5090EUSB5V isetshenziselwa ukushaja Kulula kakhulu ukufaka amabhethri e-lithium amabili ochungechungeni ngechip yokuphatha ukushaja engu-8.4V. Inikeza umuzwa wokuzwa oqhathaniswa nezipikha zendabuko ezingu-2.1 lapho ibhethri ye-lithium ingumthombo wamandla.

Umdwebo webhulokhi yomsebenzi usuwonke umi kanje:

eyodwa. Uhlelo luyacacisa:

Lolu hlelo luyinhlanganisela yokuphatha yokushaja engu-20W+2×10W yeselula engu-2.1. Bheka uhlelo. Ukunikezwa kwamandla amabhethri angu-18650 axhunywe ochungechungeni, ahlukaniswe ngamaleveli amathathu amakhulu:

1. Khetha i-CS5090 ethuthukisiwe ye-IC yokushaja ibhethri ye-lithium, londoloza i-adaptha yangaphandle evamile, futhi usebenzise ikhebula le-USB ukuze uqedele ukushajwa kwebhethri ye-lithium enamaseli amabili;

I-CS5090E okokufaka kwe-USB_5V okusetshenziselwa ukuxhuma amabhethri e-lithium amabili ochungechungeni ngechip yokuphatha ukushaja engu-8.4V. I-trickle eyakhelwe ngaphakathi engaguquki, yamanje engaguquki, nenqubo yokushaja kagesi engaguquki. Isici esikhulu kunazo zonke umsebenzi wokufakwayo ovumelana nezimo, noma isiphi isixhumi esibonakalayo se-USB esinamandla amakhulu noma amancane angashajwa ngokujwayelekile, futhi isilinganiso esiphezulu sokushaja samanje singu-1.5A. Ngaphezu kwalokho, inezinyathelo ezihlukahlukene zokulondoloza eziphephile nezithembekile kanye nenkomba yesimo sokushaja, futhi iletha umsebenzi wokulawula izinga lokushisa we-NTC.

Imephu yephinikhodi ye-CS5090E nencazelo yephini

2. Amabhethri e-lithium amabili axhunywe ochungechungeni nge-8.4V njengamandla kagesi, akhushulelwa ku-12V nge-boost chip CS5036E ukuze anikeze amandla kusikhulisamandla samandla i-IC; I-CS5036E i-12A eyakhelwe ngaphakathi, i-MOS esebenza kahle kakhulu ye-DC-DC yokuguqula i-boost chip. I-periphery imfushane ngokwedlulele, isikali se-voltage yokufaka sibanzi sisuka ku-3V siye ku-12V, futhi ukusebenza kahle kuphezulu njengo-93% noma ngaphezulu. Inani lamanje lomkhawulo liyalungiseka endaweni ezungezile, elungele ukufanisa ibhethri. Iphakheji ye-EQA16 ikhethiwe, enemisebenzi efana nokugcinwa kwezinga lokushisa elingaphezu kwamandla kanye nokugcinwa kwe-voltage engaphezulu.

Imephu yephinikhodi ye-CS5036E nencazelo yephini

3. I-chip ye-amplifier yamandla omsindo ikhetha i-CS8611E, ehlinzeka ngokukhishwa kwamandla okungu-20W+2×10W ku-12V; I-CS8611E iyi-amplifier yamandla yomsindo engu-2×15W+30W ezinikele engu-2.1-isigaba D. Ubuchwepheshe bokucindezela be-EMI obuthuthukisiwe buvumela ukusetshenziswa kwezihlungi zobuhlalu obuzibuthe ezingabizi ethekwini lokuphumayo ukuze kuhlangatshezwane nezidingo ze-EMC. Ngokuhambisana nokusebenza kwe-spread-spectrum, umsakazo we-FM nawo unomphumela omuhle wokuvala. Ngaphezu kwalokho, ukusebenza kahle okungaphezu kuka-90% kwenza kungadingeki ukusebenzisa irediyetha eyengeziwe lapho udlala umculo.

Imephu yephinikhodi ye-CS8611E nencazelo yephini

2. CS5090E+CS5036E+CS8611E+AC6951C umdwebo webhodi eliphelele

3. CS8611E_2.1 isikhulisi samandla omsindo wesiteshi ingxenye yomdwebo wesikimu

Ezine. CS5090E+CS5036E+CS8611E+AC6951C umdwebo wohlelo oluphezulu lwebhodi le-PCB

amahlanu. CS5090E+CS5036E+CS8611E+AC6951C lonke uhlelo oluphansi lwebhodi le-PCB

eziyisithupha. CS5090E+CS5036E+CS8611E+AC6951C imephu yesichibi sebhodi yonke