Cov txheej txheem:
- Kauj Ruam 1: Tawm Tswv Yim thiab Tso Tawm Cov Cim
- Kauj Ruam 2: GreenPAK Tsim
- Kauj Ruam 3: PCB Tsim
- Kauj Ruam 4: Cov txiaj ntsig
Video: Yuav Ua Li Cas Hloov 8Ch PWM mus rau Txoj Haujlwm Hloov Pauv: 4 Cov Kauj Ruam
2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:25
Peb yuav tshuaj xyuas 2 qhov kev tawm tswv yim ntawm cov xov tooj cua Txais rau cov qauv siv xov tooj cua (lossis cov qauv RC). Cov tsoos thiab feem ntau hom Txais Txais PWM yog PWM, thiab feem ntau PWM xav tau tsuas yog ib lub xaim ib channel. Kev tshaj tawm PPM tam sim no tau txais ntau thiab nrov dua vim tias nws tuaj yeem lis txhua txoj hauv kev ntawm ib tus xaim. Yog li, qee zaum muaj qhov xav tau los hloov PWM teeb liab rau PPM. Lub hom phiaj ntawm Cov Lus Qhia no yog tsim kom muaj Circuit uas tuaj yeem hloov 8Ch PWM cov cim rau PPM.
Hauv qab no peb piav qhia cov kauj ruam xav tau nkag siab yuav ua li cas cov tshuaj tau raug teeb tsa los hloov pauv 8Ch PWM rau kev hloov pauv ntawm txoj haujlwm. Txawm li cas los xij, yog tias koj tsuas yog xav kom tau txais txiaj ntsig los ntawm kev ua haujlwm, rub tawm GreenPAK software los saib qhov ua tiav GreenPAK Tsim Cov Ntaub Ntawv. Ntsaws GreenPAK Kev Txhim Kho Khoom Siv rau koj lub khoos phis tawj thiab ntaus qhov program los tsim cov hloov pauv 8Ch PWM rau kev hloov pauv ntawm txoj haujlwm.
Kauj Ruam 1: Tawm Tswv Yim thiab Tso Tawm Cov Cim
Daim duab 1 qhia txog cov tswv yim thiab cov txiaj ntsig tso tawm siv hauv Cov Lus Qhia no. PWM cov cim (ib qho rau txhua lub channel) tau tso tawm ib los ntawm ib tus los ntawm Tus Txais thiab cov ntaub ntawv qhia txog lub luag haujlwm yog sawv cev rau cov neeg siv xav tau txoj haujlwm los ntawm Tus Tshaj Tawm. Hauv kev sib piv, PPM teeb liab muaj cov ntaub ntawv qhia txog lub luag haujlwm ntawm txhua PWM raws. Hauv ob qho tib si, tus nqi ntawm txhua cov channel tau sawv cev hauv tus txheej txheem. Kev txhais qhov dav ntawm 1 mS tus mem tes zoo sawv cev rau 0 % txoj haujlwm, thiab 2 mS sawv cev rau 100 %.
Hauv PPM qhov taw qhia, qhov txiaj ntsig ntawm txhua txoj kab ke tau sawv cev los ntawm kev ncua ntawm nruab nrab ntawm cov npoo zoo ntawm txhua qhov muaj 400 uS tsau dav.
Kauj Ruam 2: GreenPAK Tsim
Txoj kev tsim qauv yog txhawm rau txheeb xyuas Rising thiab Falling Edges ntawm txhua PWM channel, tsim PPM pulses los ntawm txhua ntug, thiab tom qab ntawd sib txuas lawv ua ib qho PPM channel. Txog qhov no GreenPAK tsim siv DLY3 Ob Ntug Ntes, P DLY Ob Ntug Ntes thiab LUTs, Ob Ntug Ntes Ntes qauv nrog Tsis thiab XOR LUT, raws li qhia hauv daim duab 2. Ntxiv mus, Ob Ntug pulses mus rau 8-ntsis LOSSIS cov qauv uas muaj ntawm 3-ntsis LUTs 7, 5 thiab 4-ntsis LUT0 teeb tsa raws li LOSSIS lub rooj vag. Ntawm 4-ntsis LUT0 cov zis, tag nrho Edge Pulses tau sib koom ua ke thiab tom qab ntawd xa mus rau qhov nce zuj zus ua rau muaj kev txhaj tshuaj ib yam uas muaj cov Yeeb Nkab Ncua Sijhawm thiab 400 peb DLY0 los tsim lub teeb liab PPM. Tsis tas li, txhua tus lej PIN muaj sab hauv 100k Ohm rub lub zog tiv thaiv rau lub suab nrov ruaj ntseg yog tias qee qhov tsis siv.
Qhov ua ntu zus ntawm cov haujlwm no tau hais meej hauv daim duab 3. Nws sawv cev rau 8 PWM rau 1 PPM raws kev hloov pauv.
Kauj Ruam 3: PCB Tsim
Lub luag haujlwm tseem ceeb ntawm kev tsim qauv no nrog RC Transmitter & Receiver tau qhia hauv daim duab 4.
Kauj Ruam 4: Cov txiaj ntsig
Hauv daim duab 5 nthwv dej, cov cim/cov dab neeg hais txog yog: D1 = CH1,…. D8 = СH8 raws li, thiab Channel 1 (xiav) = PPM Converter tso tawm. Daim duab 5 qhia txog 8 txoj hauv kev ntawm PWM cov cim hloov pauv mus rau ib qho ntawm PPM teeb liab.
Tsis tas li, qhov PPM Hloov no tuaj yeem ua haujlwm tsawg dua 8 raws ntawm PWM cov cim. Piv txwv li, Daim duab 6 qhia 4 txoj hauv kev ntawm PWM cov cim hloov pauv mus rau ib qho ntawm PPM teeb liab.
Cov lus xaus
Hauv Cov Lus Qhia no peb tsim, tsim, thiab txheeb xyuas lub Circuit Court rau hloov PWM cov cim rau Pulse Position Modulation (PPM) cov cim siv tsuas yog ib qho GreenPAK CMIC. Nws tuaj yeem ua haujlwm nyob qhov twg los ntawm ib txog yim PWM raws. Qhov txiaj ntsig loj ntawm kev siv GreenPAK yog muaj ntawm cov khoom siv hauv Circuit Court, thaj tsam me me, lub zog qis, thiab tus nqi qis. Lwm qhov kev ua haujlwm lossis kev koom ua ke tuaj yeem teeb tsa rau hauv CMIC tib yam los ntawm kev siv cov khoom seem uas muaj nyob hauv Circuit Court, yog li txo cov khoom lag luam loj thiab raug nqi ntau dua.
Cov Lus Qhia no qhia yuav ua li cas thiaj tsim 8 Cannel PWM teeb liab rau PPM teeb liab hloov pauv siv tsuas yog ib qho GreenPAK CMIC. Kev Tshawb Nrhiav Rising thiab Ntog Ntog ntawm txhua PWM channel teeb liab thiab lawv "kev sib koom ua ke" tso cai kom tau txais PPM teeb liab. Ib tus GreenPAK CMIC Converter tuaj yeem ua haujlwm nyob qhov twg los ntawm ib rau yim PWM raws.
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