MICROCHIP AN1292 Tuning Guide User Guide
Cov ntaub ntawv no muab cov txheej txheem ib ntus ntawm kev khiav lub cev muaj zog nrog cov algorithm tau piav qhia hauv AN1292 "Sensorless Field Oriented Control (FOC) rau Permanent Magnet Synchronous Motor (PMSM) Siv PLL Kev Ntsuas thiab Field Weakening (FW)" (DS01292) ).
SETTING SOFTWARE PARAMETERS
Tag nrho cov ntsiab lus configurable yog txhais nyob rau hauv lub userparms.h file. Kev hloov pauv ntawm qhov tsis sib xws rau cov qauv lej sab hauv yog ua tiav siv tuning_params.xls Excel® daim ntawv nthuav qhia (saib daim duab 1-1). Qhov no file yog suav nrog AN1292 archive file, uas muaj rau rub tawm los ntawm Microchip webxaib (www.microchip.com). Tom qab nkag mus rau lub cev muaj zog thiab cov ntaub ntawv kho vajtse rau hauv daim ntawv nthuav qhia, cov ntsuas ntsuas yuav tsum tau nkag mus rau hauv userparms.h header file, raws li qhia los ntawm cov kauj ruam hauv qab no.
DUAB 1-1: tuning_params.xls
KAUJ RUAM 1 - Sau rau hauv tuning_params.xls Excel daim ntawv nthuav qhia nrog cov hauv qab no:
a) Puag Voltage
Peak voltage sawv cev rau lub ncov voltage ntawm DC txuas capacitors. Nws kuj
sawv cev rau DC voltage nws tus kheej thaum DC fais fab mov txuas nrog DC txuas. Yog hais tias qhov txuas DC yog muab los ntawm ib qho kev sib txuas ntawm ib-theem rectifier, AC ncov voltage txuas nrog lub rectifier:
V ACpeak V ACrms = √ 2
b) Peak Tam sim no
Peak tam sim no sawv cev rau tus nqi tiag tiag ntawm qhov tam sim no uas tuaj yeem sawv cev sab hauv, uas nyob ntawm qhov tau txais block. Xav txog qhov siab tshaj plaws tawm tswv yim rau ADC ntawm 3.3V, qhov nce ntawm qhov tau txais circuitry thiab tus nqi ntawm cov shunts tam sim no txiav txim siab tus nqi siab tshaj plaws ntawm qhov tam sim no uas yuav haum rau dsPIC® DSC tus naj npawb sab hauv. Hloov pauv, qhov tam sim no ntawm tus lej sab hauv tus sawv cev yog nyob rau sab sauv txwv, sawv cev rau lub ncov tam sim no raws li nws tuaj yeem nkag mus rau hauv daim ntawv qhia Excel qhia.
DAIM 1-2: SIGNAL CONDITIONING CIRCUITRY
Rau lub Circuit Court nyob rau hauv daim duab 1-2 saum toj no, qhov tam sim no acquisition circuitry muaj ib tug amplification nce ntawm:
Tus nqi shunt resistor rau MCLV yog 5 mΩ thiab, nrog qhov siab tshaj plaws voltage txais ntawm ADC cov tswv yim ntawm 3.3V, ua rau qhov siab tshaj plaws tam sim no nyeem ntawm:
Daim ntawv ceeb toom tias tus nqi suav ntawm Peak tam sim no (Imax) txawv ntawm qhov qhia hauv Excel spreadsheet file (Daim duab 1-1) - yog vim li cas vim li cas tus nqi thib ob yog sim txiav txim siab raws li nws yuav tau piav qhia tom qab hauv daim ntawv no (Kauj ruam 3-d).
c) PWM Period and Dead Time
PWM Period is the sampling thiab tswj lub sij hawm rau no algorithm (AN1292). Lub sijhawm tuag sawv cev rau lub sijhawm xav tau rau cov khoom siv hluav taws xob semiconductor kom rov qab los ntawm lub xeev dhau los kom tsis muaj kev tua-los ntawm kev tshwm sim ntawm ib qho inverter ceg. Cov nqi nkag rau hauv cov teb no yuav tsum coincide nrog cov uas siv. Kev ua qauv qhia software suav nrog hauv daim ntawv thov siv tus nqi ntawm 2 µs rau lub sijhawm tuag, thiab rau lub sijhawm PWM, tus nqi ntawm 50 µs yog siv, uas yog PWM zaus ntawm 20 kHz.
d) Motor's Electrical Parameters
Rau cov tsis muaj Stator kuj (Rs), Stator inductance (Ls), thiab Voltage tas li (Kfi) nkag mus rau lawv los ntawm lub cev muaj zog cov chaw tsim khoom cov ntaub ntawv lossis lawv yuav raug txiav txim siab sim. Thov sab laj "Tuning and Experimental Results" section of the application note, AN1292 kom paub meej txog kev sim xam Kfi.
e) Nominal thiab siab tshaj plaws
Nominal ceev yog ib qho parameter muab los ntawm cov chaw tsim tshuaj paus thiab sawv cev rau qhov ceev ua tiav nrog lub nominal tam sim no thiab vol.tage muab rau ntawm lub cev muaj zog phaj. Qhov siab tshaj plaws ceev yog ib qho parameter muab los ntawm cov chaw tsim khoom thiab feem ntau yog nyob ntawm cov khoom siv tsis zoo ntawm lub cev muaj zog. Tej zaum nws yuav raug pom tias qhov siab tshaj plaws ceev yog siab tshaj qhov nominal ceev, thiab cheeb tsam nyob rau hauv nruab nrab ntawm raug them nyob rau hauv tas li lub hwj chim hom, qhov twg lub teb weakening txheej txheem yog implied.
f) Predivision Factors
Predivision kem sib raug rau qhov ntsuas qhov tsis tu ncua siv los nqa cov txiaj ntsig ntawm cov txiaj ntsig zoo rau hauv cov lej sawv cev, [-32768, 32767]. Lub Predivision scaling yuav tsum tsis tsuas yog coj tus tsis tu ncua mus rau hauv qhov ntau tab sis kuj, nyob rau hauv cov ntaub ntawv ntawm inverse vol.tage tas li (Kfi), los faib nws qhov pib xam tus nqi thiaj li hais tias thaum nws yog multiplied tom qab vim lub teb tsis muaj zog txheej txheem, nws tsis overflow tus lej sawv cev ntau. Predivision yam tuaj yeem pom hauv software code hauv daim ntawv faib
lub sijhawm ua haujlwm (sab laug hloov).
Rau example, NORM_LSDTBASE Predivision scaling yog 256 hauv daim ntawv nthuav qhia,
uas muaj kev cuam tshuam hauv kab hauv qab no ntawm code:
kwv.c
Raws li nws yuav pom, es tsis txhob hloov mus rau sab laug nrog 15, vim yav dhau los predivision nrog 28, nws yog thaum kawg hloov nrog 7. Tib yam tshwm sim rau NORM_RS, uas yog predivided los ntawm 2 kom NORM_RS nyob rau hauv ntau yam, uas tiv thaiv tus lej. dej ntws. Qhov no tau tshwm sim hauv estim.c cov lej sib raug rau qhov sib npaug ntawm qhov pib ua ntej los ntawm kev ua haujlwm ntawm 14 es tsis yog 15:
Nyob rau hauv rooj plaub ntawm NORM_INVKFIBASE, Predivision yog 2 thiab qhov rov qab sib npaug yog ua tiav ntawm kab hauv qab no:
KAUJ RUAM 2 – Export ua tsis tau rau userparms.h.
Cov txiaj ntsig tau tshwm sim hauv kab sab xis uas tau muab faib ua cov khoom tso tawm yuav tsum tau nkag mus rau hauv userparms.h file cov lus txhais. Daim ntawv ceeb toom tias cov khoom nyob rau hauv qhov tso zis tsis muaj xim sib txawv, qhia meej qhov twg ntawm lawv yuav tsum tau theej thiab muab tso ncaj qha rau hauv software code.
Kauj ruam 3 - Ua ntej, qhib lub voj voog
a) Qhib Loop Functioning
Kev qhib lub voj voog tuaj yeem ua haujlwm sib cais, los ntawm kev ua kom muaj qhov tshwj xeeb #define hauv FOC software code; txwv tsis pub, kev hloov mus rau kaw voj tswj tau ua tiav. Nco ntsoov tias koj lov tes taw kaw lub voj hloov pauv rau qhov pib ntawm qhov qhib lub voj.
b) Teem Qhib Loop Parameters
Tam sim no Scaling
Lub prescaling tas li yuav tsum tau teem kom hloov ADC cov zis kom sib haum rau tus nqi tiag tiag ntawm kev kos npe (kev taw qhia), thiab yog tias tsim nyog, kom prescale nws mus rau tus nqi nruab nrab, tsim nyog rau kev ua haujlwm ntxiv.
Qhov ntsuas qhov ntsuas rau tam sim no yog qhov tsis zoo vim tias qhov kev tau txais rau shunts tau txais qhov kev xav rov qab ntawm cov dej tam sim no, thiab yog li ntawd, tus nqi ntawm Q15 (-0.5) sawv cev rau (-1) qhov sib npaug ntawm Q15 tus nqi xa rov qab los ntawm ADC.
Pib-up Torque Current
Xaiv lub npe tam sim no rau lub cev muaj zog raws li qhov pib, raws li qhia hauv qab no (hauv qhov no, tus nqi ntawm 1.41 amperes tau siv):
Yog tias qhov pib tam sim no qis dhau, lub load yuav tsis txav mus. Yog tias nws siab dhau lawm, lub cev muaj zog tuaj yeem overheat yog tias nws khiav hauv lub voj qhib rau lub sijhawm ntev.
Xauv Sijhawm
Feem ntau, lub sijhawm xauv ntawm tus nqi ntawm ob peb puas milliseconds raug xaiv
Tus nqi xauv lub sij hawm yog nyob ntawm PWM zaus. Rau example, ntawm 20 kHz, tus nqi 4000 yuav sawv cev 0.2 vib nas this.
Ramp Nce tus nqi
Qhov qhib lub voj acceleration yuav tsum tau teem kom tsawg li tsawg tau thaum pib. Qhov me me no tus nqi, lub peev xwm ntau dua lub cev muaj zog yog pib nrog lub zog siab dua torque lossis lub sijhawm ntawm inertia.
Kawg Ceev
Qhov kawg ceev tus nqi teeb tsa yog kev lag luam tawm ntawm qhov ua tau zoo ntawm kev tswj thiab cov
Tus kwv yees qhov tsawg kawg nkaus ceev txwv kom raug kwv yees ceev thiab txoj hauj lwm. Nquag, tus neeg siv yuav xav teem caij qhib lub voj kawg ceev tus nqi kom tsawg li sai tau kom cov kev hloov mus rau lub voj kaw ua haujlwm tshwm sim sai li sai tau los ntawm qhov pib. Nco ntsoov qhov kev sib haum xeeb tau hais los saum toj no, xav txog qhov kawg ceev ntawm ib feem peb ntawm nominal ceev ntawm lub cev muaj zog nyob rau hauv kev kho rau qhov pib.
FAJ 1-3:
- PI tam sim no Controllers
Qee cov lus qhia dav dav rau kev kho kom zoo ntawm daim ntawv thov no PI controllers yog: - Ob lub controllers, ntawm D thiab Q axis, yuav muaj cov txiaj ntsig zoo ib yam rau cov khoom sib xws (D_CURRCNTR_PTERM, Q_CURRCNTR_PTERM), Integral (D_CURRCNTR_ITERM, Q_CURRCNTR_ITERM), Anti-windup Compensation (D_CURRCNTR_CRRCNM, Q_CURRCNTR_CRRCNum_, Mini-windup Compensation (D_CURRCUTR_CRRCNM), D_CURRCNTR_OUTMIN, Q_CURRCNTR_OUTMIN) cov ntsiab lus.
- Feem ntau, thaum twg tam sim no oscillation tshwm sim, txo cov proportional nce lub sij hawm kom paub tseeb tias ib qho nce yog los ntawm 5 mus rau 10 npaug me dua proportional nce.
Siv cov txiaj ntsig hauv qab no ua qhov pib.
c) Qhib Loop Parameters Optimization
Cov chaw saum toj no yuav pab qhib lub voj voog ua haujlwm. Thaum nws tau raug txheeb xyuas tias txhua yam ua haujlwm zoo nrog qhov teeb tsa tau piav qhia yav dhau los, sim ua kom zoo kho qhov tsis ua haujlwm kom ua haujlwm zoo dua thiab ua haujlwm tau zoo los ntawm:
- txo qhov pib torque tam sim no
- nce speedup ramp tus nqi
- txo lub sijhawm xauv
- txo qhov ceev kawg
KAUJ RUAM 4 - Teem lub voj kaw ua haujlwm
a) Pab kom Kaw Loop Transition
Kauj ruam rau pem hauv ntej kom kaw voj tuning ib zaug lub voj qhib tau ua haujlwm zoo, los ntawm kev tshem tawm qhov txhais ntawm OPEN_LOOP_FUNCTIONING macro txhais.
b) Teem Kaw Loop Parameters
Pib Lub kaum sab xis Offset Tuning
Kev hloov pauv ntawm lub voj qhib mus rau lub voj kaw txhais tau hais tias qhov kev kwv yees pib yuam kev, rau qhov kev xaiv ua ntej ntawm lub kaum sab xis pib yuav tsum:
Nyob ntawm qhov torque resistant ntawm lub load, lub sij hawm ntawm inertia, los yog nyob ntawm seb lub cev muaj zog hluav taws xob tsis tu ncua, hloov lub kaum sab xis kom tshem tawm qhov tshwm sim qhib voj / kaw voj hloov glitches.
Estimator Filter Coefficients
Lub default constants teeb tsa rau cov lim 'coefficients yuav tsum muab cov txiaj ntsig zoo rau feem ntau cov motors. Txawm li cas los xij, txo cov coefficients yuav txo qis theem qeeb, uas tuaj yeem pab tau tshwj xeeb ntawm kev kub ceev, qhov twg armature tam sim no hloov pauv sai dua. Ib qho kev cuam tshuam ntawm lub luag haujlwm lim dej thiab nws cov teebmeem rov qab, kev taw qhia ntawm theem hloov, yuav tsum ua tiav.
PI Speed Controller
Rau kev tswj ceev ceev, P thiab kuv nce tuaj yeem hloov kho siv ntau txoj hauv kev. Yog xav paub ntxiv, tshawb rau "PID Controller" ntawm Wikipedia website thiab mus rau ntu "Loop Tuning".
Rau cov xwm txheej uas tsis xav tau kev tswj ceev, hom torque tuaj yeem qhib los ntawm kev txhais TORQUE_MODE.
KAUJ RUAM 5 – Optionally, Tune High-Speed Field Weakening Parameters
CEEB TOOM
Feem ntau, cov chaw tsim khoom siv lub cev muaj zog qhia qhov siab tshaj plaws ua tiav los ntawm lub cev muaj zog yam tsis muaj kev puas tsuaj (uas tuaj yeem siab tshaj qhov nres qhov ceev ntawm qhov ntsuas tam sim no). Yog tias tsis yog, nws tuaj yeem khiav nws ntawm qhov nrawm dua tab sis tsuas yog rau lub sijhawm me me (nruab nrab) piv txwv tias muaj kev pheej hmoo ntawm demagnetization lossis kev puas tsuaj ntawm lub cev muaj zog lossis ntawm cov cuab yeej txuas nrog nws. Nyob rau hauv Field Weakening hom, yog hais tias tus maub los poob vim yog ib tug miscalculation ntawm lub kaum sab xis ntawm kev kub ceev saum toj nominal tus nqi, muaj peev xwm ntawm puas lub inverter yog imminent. Yog vim li cas yog qhov Back Electromotive Force (BEMF) yuav muaj tus nqi ntau dua li qhov uas yuav tau txais rau qhov nominal ceev, yog li tshaj DC tsheb npav vol.tage tus nqi, uas lub inverter lub hwj chim semiconductors thiab DC txuas capacitors yuav tsum tau txhawb. Txij li thaum qhov kev hloov kho tau hais qhia qhov kev hloov pauv coefficient kom txog rau thaum qhov ua tau zoo tshaj plaws, kev tiv thaiv ntawm inverter nrog cov khoom siv hluav taws xob sib txuas yuav tsum tau hloov kho kom ua tau ntau dua vol.tages nyob rau hauv cov ntaub ntawv ntawm stalling ntawm high speeds.
a) Teeb tsa qhov pib tsis raug
Nominal thiab siab tshaj plaws
Pib nrog tus nqi rau nominal ceev RPM (piv txwv li, ob peb puas RPM tsawg dua lub cev muaj zog ntsuas ceev). Hauv no example, lub cev muaj zog yog ntsuas rau 3000 RPM; Yog li ntawd, peb tau teeb tsa NOMINAL_SPEED_RPM rau 2800. Nrog rau lub cev muaj zog tshwj xeeb rau qhov siab tshaj plaws kev ua kom tsis muaj zog, thiab sau tus nqi no rau MAXIMUM_SPEED_RPM.
Yuav tsum paub txog qhov tseeb tias rau cov txiaj ntsig saum toj no (dhau) Nominal ceev, lub teb tsis muaj zog lub tswv yim yog enabled, thiab yog li ntawd, txo qhov nominal ceev siv rau smoothing qhov kev hloov no txhais tau hais tias ntxiv zog yog siv rau airgap flux txo, uas tag nrho, ua rau. qis efficiency.
D-axis Tam sim no siv
D-axis reference tam sim no lookup table (ID) muaj qhov tseem ceeb ntawm 0 thiab nominal stator tam sim no, muab faib sib npaug ntawm 18 qhov nkag ntawm qhov saib. Lub nominal stator tam sim no tuaj yeem raug coj los ntawm lub cev muaj zog. Yog tias nws tsis paub, tus nqi no tuaj yeem kwv yees los ntawm kev faib cov nqi zog tshaj qhov ntsuas voltage.
Voltage Constant Inverse
Lub rooj saib xyuas kev nkag mus rau qhov siab tshaj plaws ua tiav hauv kev ua kom tsis muaj zog yog proportional rau percentage ntawm kev nce ntawm mechanical ceev los ntawm nominal mus rau qhov siab tshaj plaws tus nqi. Nyob rau hauv lub lookup rooj nkag, qhov tseem ceeb yog muab sib npaug zos thiab yog inverse voltage tas mus li rau qhov siab tshaj plaws ceev tshaj tus lej sawv cev ntau (32,767), kho qhov sib thooj Predivision scaling factor. Nco ntsoov tias cov lej hauv qab no raug faib los ntawm 2 (saib daim duab 1-1).
Inductance Variation
Rau qhov inductance variation (LsOver2Ls0) lookup table, thawj tus nqi hauv lub rooj yuav tsum ib txwm yog ib nrab txij li lub hauv paus ceev inductance muab faib los ntawm nws tus kheej ob npaug ntawm tus nqi. Cov txiaj ntsig no yuav tsum ua haujlwm rau feem ntau cov motors.
b) Runtime Parameters Kho
Yog hais tias cov txiaj ntsig ntawm kev khiav cov software hauv cov xwm txheej no yuav nres lub cev muaj zog ntawm qhov nrawm dua li nominal, nws yog vim qhov tseeb tias cov rooj saib xyuas tau sau nrog cov nqi kwv yees, uas nyob rau qee qhov tsis sib xws ntawm qhov tsis yog-linearities tiag tiag. Thaum lub cev muaj zog stalls, tam sim ntawd nres qhov kev ua tiav, ntes tus nqi ntawm qhov Performance index (FdWeakParm.qIndex) hauv lub qhov rais saib debugger. Qhov Performance index qhia qhov taw tes uas qhov tseem ceeb ntawm IDREF (saib IDREF cov lus hauv Kauj Ruam 5a), nyob rau hauv qhov kev txiav txim nce mus, tsis zoo thiab yuav tsum tau hloov kho. Txhawm rau txhim kho kev ua tau zoo ntxiv, tus nqi qhia los ntawm qhov ntsuas tam sim no hauv lub rooj saib xyuas yuav tsum tau hloov los ntawm tus nqi qhia los ntawm qhov ntsuas tom ntej (FdWeakParm.qIndex + 1) thiab lub cev muaj zog tus cwj pwm yuav tsum tau kuaj xyuas dua. Qhov kev ua tau zoo yuav tsum nce thiab rov ua cov txheej txheem no rau ob peb zaug qhov siab tshaj plaws ceev rau lub npe tam sim no siv rau ntawm d-axis yuav ncav cuag. Yog hais tias qhov siab tshaj plaws tau txais rau lub nominal tam sim no qis dua lub hom phiaj, qhov tseeb tus nqi ntawm d-axis siv tam sim no yuav tsum tau nce siab tshaj tus nqi nominal. Raws li ib tug example, yog 5500 RPM tsis tuaj yeem ncav cuag, hloov IDREF_SPEED17 tam sim no los ntawm -1.53 rau -1.60 thiab sim dua. d tam sim no siv nce yuav tsum tau pib los ntawm tus nqi denoted los ntawm qhov Performance index qhov twg lub cev muaj zog stalled. Tus nqi ntsuas yuav tsum sib haum mus rau qhov tseeb ceev ntawm lub cev muaj zog, ntsuas ntawm tus ncej siv lub tachometer, nco ntsoov tias qhov ntsuas ntsuas tau suav nrog siv qhov siv ceev, tsis yog qhov ceev tiag. Thaum qhov d-tam sim no nres nce qhov nrawm (nce qhov tam sim no ntau dhau yuav ua rau lub cev muaj zog), qhov ntsuas sib haum rau lub rooj zaum yuav qhia qhov twg tus nqi rau inductance yuav tsum tau kho (nce lossis txo nws cov nqi). Lub inductance variation lookup table yog qhov kawg yuav tsum tau hloov kho.
Nco ntsoov cov ntsiab lus hauv qab no ntawm tus lej tiv thaiv ntawm Microchip li:
- Cov khoom lag luam microchip ua tau raws li qhov tshwj xeeb muaj nyob hauv lawv cov ntaub ntawv Microchip tshwj xeeb.
- Microchip ntseeg hais tias nws tsev neeg ntawm cov khoom yog ib qho ntawm cov tsev neeg muaj kev ruaj ntseg tshaj plaws ntawm nws cov khoom nyob rau hauv kev ua lag luam niaj hnub no, thaum siv nyob rau hauv lub hom phiaj thiab nyob rau hauv tej yam kev mob.
- Muaj cov kev tsis ncaj ncees thiab tejzaum nws tsis raug cai siv los ua txhaum txoj cai tiv thaiv feature. Tag nrho cov txheej txheem no, rau peb txoj kev paub, yuav tsum tau siv cov khoom siv Microchip nyob rau hauv ib qho kev ua haujlwm sab nraud cov kev qhia tshwj xeeb uas muaj nyob hauv Microchip Cov Ntaub Ntawv Cov Ntawv. Feem ntau, tus neeg ua li ntawd yog koom nrog kev nyiag khoom ntawm kev txawj ntse.
- Microchip txaus siab ua haujlwm nrog cov neeg siv khoom uas txhawj xeeb txog kev ncaj ncees ntawm lawv cov cai.
- Tsis yog Microchip lossis lwm lub chaw tsim khoom semiconductor tuaj yeem lav qhov kev ruaj ntseg ntawm lawv cov cai. Kev tiv thaiv kev cai tsis tau txhais hais tias peb lav cov khoom raws li "tsis tawg."
Kev tiv thaiv code yog hloov zuj zus mus tas li. Peb ntawm Microchip tau cog lus tias yuav txhim kho txoj cai tiv thaiv cov yam ntxwv ntawm peb cov khoom tsis tu ncua. Kev sim ua txhaum Microchip's code tiv thaiv feature tej zaum yuav ua txhaum ntawm Digital Millennium Copyright Act. Yog tias qhov kev coj ua no tso cai rau koj nkag mus rau koj cov software lossis lwm yam haujlwm tsis raug cai, koj tuaj yeem muaj cai foob rau kev pab raws li Txoj Cai ntawd.
Cov ntaub ntawv muaj nyob rau hauv daim ntawv tshaj tawm no hais txog kev siv cov cuab yeej siv thiab cov zoo li tsuas yog muab rau koj yooj yim thiab yuav raug hloov pauv los ntawm kev hloov tshiab. Nws yog koj lub luag haujlwm los xyuas kom meej tias koj daim ntawv thov ua tau raws li koj cov lus qhia tshwj xeeb. MICROCHIP tsis muaj kev sawv cev lossis kev lav phib xaub ntawm txhua yam txawm hais tawm lossis hais, sau lossis hais lus, kev cai lij choj lossis lwm yam, cuam tshuam rau cov ntaub ntawv, suav nrog tab sis tsis txwv, txwv tsis pub, FOR SET INTERNATIONAL. Microchip tsis lees paub txhua qhov kev lav phib xaub los ntawm cov ntaub ntawv no thiab nws siv. Kev siv cov khoom siv Microchip hauv kev txhawb nqa lub neej thiab / lossis daim ntawv thov kev nyab xeeb yog tag nrho ntawm tus neeg yuav khoom qhov kev pheej hmoo, thiab tus neeg yuav khoom pom zoo tiv thaiv, them nyiaj thiab tuav Microchip tsis raug mob los ntawm ib qho thiab tag nrho cov kev puas tsuaj, kev foob, foob, lossis cov nuj nqis uas tshwm sim los ntawm kev siv. Tsis muaj ntawv tso cai raug xa tawm, hais tsis raug lossis lwm yam, raws li cov cai ntawm Microchip kev txawj ntse.
Cov cim lag luam
Lub npe Microchip thiab lub logo, lub logo Microchip, dsPIC, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART, PIC32 logo, rfPIC thiab UNI/O yog cov cim lag luam ntawm Microchip Technology Incorporated hauv Tebchaws Meskas thiab lwm lub tebchaws. FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor, MXDEV, MXLAB, SEEVAL thiab Embedded Control Solutions tuam txhab tau sau npe cov cim lag luam ntawm Microchip Technology Incorporated hauv Tebchaws Meskas Analog-for-the-Digital Age, Application Maestro, CodeGuard, dsPICDEM, dsPICDEM. net, dsPICworks, dsSPEAK, ECAN, ECONOMONITOR, FanSense, HI-TIDE, Hauv-Circuit Serial Programming, ICSP, Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB, MPLINK, mTouch, Octopus, Omniscient Code Generation, - 18, PICDEM, PICDEM.net, PICkit, PICtail, ICE REAL, rfLAB, Xaiv hom, Tag Nrho Endurance, TSHARC, UniWinDriver, WiperLock thiab ZENA yog cov cim lag luam ntawm Microchip Technology Incorporated hauv Tebchaws Meskas thiab lwm lub tebchaws. SQTP yog lub cim kev pabcuam ntawm Microchip Technology Incorporated hauv Tebchaws Meskas Tag nrho lwm yam kev lag luam uas tau hais hauv no yog cov cuab yeej ntawm lawv cov tuam txhab. © 2010, Microchip Technology Incorporated, luam tawm nyob rau hauv lub teb chaws USA, All Rights Reserved.
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Cov ntaub ntawv / Cov ntaub ntawv
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MICROCHIP AN1292 Tuning Guide [ua pdf] Cov neeg siv phau ntawv qhia AN1292 Tuning Guide, AN1292, Tuning Guide, Qhia |
