Inhliziyo yokushaya kwenhliziyo ne-oxygen sensor inama-LEDs nama-algorithms, ngobukhulu be- <1mm

Kodwa-ke, inesakhi sangaphandle sokusebenza: ama-LED amane, i-multiplexer ne-chip ye-accelerometer.

"I-MAXM86146 isebenzisa idatha ye-accelerometer ukukhokhela izinto ezinyakazayo eziqhutshwa ngezikhathi ezithile futhi yenzelwe amasiginali amabili okushaya okuluhlaza okwesibhakabhaka ngasikhathi sinye," kusho inkampani. “Lezi zimpawu ezimbili eziluhlaza zingatholakala ngama-photodiode amabili noma i-LED eyodwa noma i-photodiode eyodwa nama-LED amabili. Ukugcwaliswa kwe-oksijeni kudinga ukusetshenziswa kwamaza amabili e-LED ahlukene, okungukuthi obomvu ne-IR. Badinga ukwabelana nge-photodiode efanayo nebanga lokwehlukana. ”

Imodyuli iqukethe i-MAX86141 dual-channel analogue front end chip kanye ne-MAX32664C MCU kanye ne-3.8mm²Ama-PIN photodiode.

Ku-chip engaphambili, amawele ama-19bit ADC afunda ama-photodiode futhi, yize ama-LED engaphandle, kufakwe abashayeli be-LED abathathu (abadinga owabo ujantshi). I-multiplexer yangaphandle iyadingeka kuma-LED uma yonke imisebenzi kungenzeka isetshenziswe.

Izidingo zamandla emodyuli ukunikezwa okukodwa kwe-1.8V (kanye nokuhlinzekwa kwe-LED), futhi imodyuli isekela i-I²C ukuxhumana kwiprosesa yomsingathi. "Ama-algorithm ahlanganisiwe alungisa amasethingi we-analogue front-end ukukhulisa isignali kunani lomsindo ngenkathi anciphisa ukusetshenziswa kwamandla ngokuya ngesigaba somsebenzi" - lokhu okwenziwe ngenye yama-algorithms.

Kuma-sampula / ama-25, isiphetho sangaphambili sidinga i-10μA.

Ikhithi yokuhlola (MAXM86146EVSYS #) iyatholakala.

Ikhasi lomkhiqizo lilapha