High-Range Wireless Power: 9 Kauj Ruam (nrog Duab)

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:30

Tsim kom muaj Cov Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob uas tuaj yeem siv hluav taws xob teeb lossis them lub xov tooj ntawm qhov deb li 2 ko taw! Qhov no siv lub tshuab hluav taws xob sib txuas kom xa cov chaw sib nqus los ntawm cov xa hluav taws xob xa mus rau cov txais cov kauj.

Peb siv qhov no los ua kev qhia thaum lub sijhawm qhuab qhia ntawm Maxwell's Four Great Equations ntawm peb pawg ntseeg! Txheeb nws ntawm:

www.youtube.com/embed/-rgUhBGO_pY

Kauj Ruam 1: Yam Koj Yuav Tsum Tau

• 18 gauge magnetic hlau. Nco ntsoov tias koj tsis tuaj yeem siv cov xaim tsis tu ncua, koj yuav tsum siv hlau nplaum sib nqus (uas muaj cov kab hluav taws xob txhav txhav heev rau nws). Ib qho piv txwv muaj nyob ntawm Amazon ntawm no:

  www.amazon.com/gp/product/B00BJMVK02

• 6W (lossis tsawg dua) AC/DC 12V Dimmable LED teeb. Ib qho piv txwv nyob ntawm no:

  www.amazon.com/Original-Warranty-Dimmable-R…

• 1uF capacitors (tsis yog electrolytics, yuav tsum tsis yog polarized). Koj muaj qee txoj kev xaiv ntawm no. Yog tias koj tsim lub zog qis, koj tuaj yeem tau txais 250V 1uF cov khoom siv los ntawm Xov Tooj Cua lossis Frys. Yog tias koj xav tsim lub zog muaj zog ntau, koj yuav tsum tau txais tshwj xeeb 560V cov khoom siv los ntawm Digikey.
• 0.47uF Capacitor (tsis yog electrolytics, yuav tsum tsis yog polarized)
• Qee yam ntawm lub hwj chim amplifier. Peb siv 450W HI-FI hwj chim amp. Koj tuaj yeem siv txhua yam los ntawm qhov ntawd mus rau tus neeg hais lus hauv PC. Lub zog koj siv ntau dua, ntau ntau koj yuav tawm ntawm nws.
• Solder & Solder hlau. Hlau txiav
• Ib daim plywood thiab qee cov ntsia hlau me me (siv rau cov hlua khawm)
• Cov Hluav Taws Xob Hluav Taws Xob Dub
• Ntsuas kab xev & tus pas ntsuas
• Insulated hlau
• Rauj

• Lub suab nrog qhov sib txawv sib txawv thiab qhov dav uas tsim tawm 8khz sine tone. Nws yog qhov yooj yim siv PC, Laptop lossis xov tooj nrog dawb muaj suab nrov tsim software thiab txuas rau lub mloog pob ntseg. Kuv siv Mac nrog cov software no:

  code.google.com/p/audiotools/downloads/det…Or koj tuaj yeem siv cov software no rau PC: Koj kuj tseem tuaj yeem siv lub tshuab hluav taws xob ua haujlwm yog tias koj muaj (ib qho khoom kim heev ntawm cov khoom ntsuas)

NTE Capacitor Part List (rau lub zog qis version). Koj tuaj yeem tau txais cov khoom no ntawm Frys

3 x 1uF 50V capacitor, NTE CML105M50 (kom txuas rau lub teeb thiab cov kauj me)

1 x 0.47uF 50V capacitor, NTE CML474M50 (txhawm rau txuas rau lub teeb pom kev & lub raj me me ua ke nrog 1uF lub kaus mom)

1 x 1uF 250V capacitor, NTE MLR105K250 (txuas rau lub kauj loj)

Kev Txiav Txim Digikey (rau lub zog muaj zog siab)

Txuas nrog yog Digikey Ib Daim Ntawv Teev Npe uas koj tuaj yeem siv rau qib siab dua. Cov capacitors no nce mus txog 560V, uas tso cai rau koj siv ~ 500W lub tshuab ua kom nrov nrov, thiab nce mus txog yuav luag ob txhais taw. Cov ntawv txuas tsuas yog suav nrog qhov tsawg kawg nkaus qhov khoob. Tsuav koj tab tom txiav txim Digikey, xaj qee qhov ntxiv thaum koj ua yuam kev lossis tshuab ib qho (qhov tseeb tshwj xeeb ntawm TVS tiv thaiv diodes, uas kuv haus ntau zaus).

Kauj Ruam 2: Ua Coil Winder

Txhawm rau kom cua coils, koj xav tau lub thav duab los cua lawv ib puag ncig.

Ntawm ib daim plywood, koj yuav tsum tau siv daim duab ntsuas los kos lub voj voos 20 cm thiab lub voj voos 40 cm.

Rauj rau tes zoo ib yam nyob ib ncig ntawm lub voj voog. Rau lub voj voos 20 cm, Kuv siv ib puag ncig 12 tus ntsia hlau thiab rau 40 cm lub voj voos, kuv siv ib puag ncig 16. Ntawm ib qho chaw hauv lub voj voos, koj yuav xav ua tus nkag nkag uas yuav tuav cov xaim thaum koj pib thawj winding.. Ntawm qhov chaw ntawd, rauj lwm tus ntsia hlau ze rau ib tus ntsia hlau, tom qab ntawd ob peb ntiv tes nyob deb.

Kauj Ruam 3: Cua 40cm Chev Nrog 20 Tig thiab 20cm Coil Nrog 15 Tig

Ua ntej koj yuav ua ob peb lub voj nrog cov xaim nyob ntawm tus ntsia hlau sab nraud txhawm rau txhawm rau xaim, tom qab ntawd pib lub voj nyob ib puag ncig lub kauj. Nco ntsoov tias koj tso ntau cov xov hlau ntxiv thaum pib thiab xaus ntawm lub kauj. Tawm 3 ko taw kom muaj kev nyab xeeb (koj yuav xav tau qhov no los txuas rau hluav taws xob).

Nws yog ib qho nyuaj nyuaj kom taug qab cov xov tooj cua. Siv phooj ywg los pab koj.

Ua kom cov hlua khi nruj heev. Yog tias koj xaus nrog cov xoob xoob, lub kauj yuav ua rau tsis meej pem.

Nws nyuaj heev kom khaws cov cua hauv qhov kev txiav txim (tshwj xeeb tshaj yog tias koj siv 18 guage xaim, 24 xaim ntsuas tau yooj yim dua tab sis muaj ntau qhov poob ntau). Yog li koj yuav xav tau ob peb tus neeg los pab koj tuav nws thaum koj cua nws.

Tom qab koj ua tiav qhov kev hloov pauv, koj yuav xav kom ntswj cov xaim hluav taws xob & cov xaim hluav taws xob kom tuav lub kauj ruaj khov. Tom qab ntawd kaw cov hlua nrog cov kab hluav taws xob hauv ntau qhov chaw.

Thaum koj ua tiav nrog cov kauj ruam no koj yuav tsum muaj ob lub kauj, ib lub kauj nrog 20cm txoj kab uas hla thiab 15 tig thiab ib lub kauj nrog 40cm txoj kab uas hla thiab 20 tig. Cov coils yuav tsum raug kaw nruj nreem, thiab ruaj nrog kab xev. Koj yuav tsum tuaj yeem khaws lawv thiab tuav lawv yooj yim yam tsis muaj kev sib tsoo lossis tsis sib haum.

Kauj Ruam 4: Ntxiv Lub Teeb Pom Kev & Khoom Siv Hluav Taws Xob rau 20cm Coil

Tom ntej no, koj yuav txuas lub teeb rau lub kauj me me. Koj yuav tsum tau solder peb 1uf (1 microfarad, lossis hais txoj kev sib txawv 1, 000nF) thiab ib qho 0.47uF (hais lwm txoj kev sib txawv, 470nF) capacitors rau lub teeb pom kev. Qhov ntawd yog tag nrho ntawm 3.47uF (capacitors ntxiv rau hauv qhov sib npaug). Yog tias koj tab tom ua lub zog muaj zog, koj yuav tsum tau siv lub 20V ob txoj kab TVS diode nruab nrab ntawm lub teeb pom kev zoo li kev tiv thaiv tiv thaiv overvoltage.

Tom qab koj muab cov kab hluav taws xob tso rau hauv, koj yuav tsum ntswj qhov kawg ntawm cov xov hlau txuas txhua txoj hauv kev hla nruab nrab ntawm cov kauj. Cov hlau yog txhav txaus los txhawb lub teeb ci. Tom qab koj ntswj cov xaim hla txoj kab uas hla, koj tsuas yog txiav qhov kawg ntawm xaim thiab tso lawv qhib.

Tom qab ntawd koj yuav tso lub teeb nyob hauv nruab nrab ntawm cov xov sib tw. Koj yuav rub sib tw, kom txhua lub xov tooj mus kov ib lub davhlau ya nyob twg. Tom qab ntawd koj txhuam cov xaim hluav taws xob xaim nrog rab riam thiab tom qab ntawd muab cov xaim huv huv tso rau ntawm lub teeb pom kev. Nco ntsoov tias koj siv cov tub ntxhais rosin solder. Koj yuav xav ntxiv cov rosin ntxiv, uas yuav pab ntxuav cov khoom ntawm cov hniav txha hniav laus.

Kauj Ruam 5: Txuas 40cm Coil rau Cov Khoom Siv Hluav Taws Xob

Tom ntej no koj yuav tsum txuas 40cm kauj rau 1uF capacitor. Qhia ntawm no yog lub zog muaj zog, qhov uas kuv tau txuas nrog 10x 0.1uF capacitors nyob rau hauv ua ke kom ua rau 1uF capacitor (capacitors nyob rau hauv parallel txuas ntxiv). Lub capacitor mus nruab nrab ntawm cov kauj thiab lub zog ua kom lub zog tso zis zoo. Lwm sab ntawm cov kauj mus ncaj qha mus rau lub zog tso tawm suab GND.

Kauj Ruam 6: Txuas Sine Wave Source rau Lub Hwj Huam Amp thiab Sim Nws

Kauj ruam kawg yog tsim lub sine wave. Koj tuaj yeem rub tawm lub tshuab hluav taws xob ua haujlwm ntawm koj lub xov tooj lossis laptop lossis desktop. Koj yuav xav sim ua kom pom qhov ua haujlwm tau zoo tshaj plaws.

Koj txuas koj lub sine qhov chaw rau lub suab tso suab lub suab, thiab tom qab ntawd txuas lub suab lub suab mus rau 40cm kauj thiab 1uF capacitor, thiab tom qab ntawd txhua yam yuav tsum ua haujlwm!

Yog tias koj siv lub suab tso suab siab (100W lossis ntau dua), Ceev faj! Nws tuaj yeem tsim hluav taws xob siab heev dhau ntawm +/- 500V. Kuv sim nrog qhov ntsuas hluav taws xob siab kom ntseeg tau tias kuv yuav tsis tawg lub tshuab hluav taws xob. Nws kuj tseem yooj yim kom poob siab yog tias koj kov cov hlau lead nthuav tawm.

Tsis tas li, yog tias koj siv lub suab tso suab siab, koj tsis tuaj yeem tau txais 20cm kauj ze rau ntawm 40cm kauj. Yog tias lawv nyob ze dhau, TVS diode lossis LED teeb yuav hlawv vim yog lub hwj chim ntau dhau.

Kauj Ruam 7: Tsim Tus Xov Tooj Wireless Charger

Koj tuaj yeem hloov kho qhov yooj yim kom them lub xov tooj. Kuv ua qhov thib ob 20cm kauj thiab tom qab ntawd ntxiv tag nrho cov khoom siv hluav taws xob. Tib 3.47uF capacitor thiab TVS diode tau siv. Qhov ntawd tau ua raws tus choj txhim kho (Comchip P/N: CDBHM240L-HF), ua raws los ntawm 5V txoj kab tswj hwm (Fairchild LM7805CT), tom qab ntawd 47uF tantalum capacitor. Nrog lub zog loj zog, lub Circuit Court tuaj yeem them koj lub xov tooj tau yooj yim ntawm qhov ko taw thiab ib nrab!

Kauj Ruam 8: Cov Ntsiab Lus

Qhov ntsuas hluav taws xob tiv thaiv qhov nkhaus nrug tau txuas nrog.

Tsim Kev Ntsuas, thiab sib piv rau simulation & kev xav

40 cm Cov

• Lub kauj loj = 0.2m lub vojvoog, 0.4m txoj kab uas hla. 18 gauge hlau 20 windings
• Theoretical resistance = 20.95e-3*(2*pi*0.2*20+0.29*2) = 0.5387 ohms
• Qhov tseeb ua haujlwm = 0.609 ohms. Variance los ntawm kev xav: +13%
• Simulated Inductance = 0.435mH Qhov tseeb Inductance: 0.49mH. Variance los ntawm simulation: +12%

20 cm Coil

• Tau txais cov kauj = 0.1m lub vojvoog 0.2m txoj kab uas hla 18 guage xaim 15 windings
• Theoretical resistance = (2*pi*0.1*15+0.29*2)*0.0209 = 0.2091
• Qhov tseeb Kuj = 0.2490. Variance los ntawm simulation: +19%
• Simulated Inductance = 0.105mH. Qhov tseeb Inductance = 0.1186mH. Variance los ntawm simulation: +12%

Kauj Ruam 9: Simulation, Ua Kom Zoo & Sib Tham

Yuav ua li cas peb simulated tus tsim

Peb tau sim thiab ua kom zoo dua tus qauv tsim hauv 2-D mangetostatic simulator, thiab nrog SPICE.

Peb siv dawb 2-D mangetostatic simulator hu ua Infolytica. Koj tuaj yeem rub tawm dawb ntawm no:

www.infolytica.com/en/products/trial/magnet…

Peb tau siv SPICE simulator dawb hu ua LTSPICE. Koj tuaj yeem rub nws ntawm no:

www.linear.com/designtools/software/

Tsim cov ntaub ntawv rau ob tus simulators tau txuas nrog.

Sib tham

Qhov kev tsim qauv no siv lub zog sib nqus magnetostatic resonant. Lub suab hluav taws xob amp tsim hluav taws xob tam sim no uas ntws los ntawm cov xa hluav taws xob thiab tsim cov khoom sib nqus sib nqus. Qhov chaw sib nqus tau txais los ntawm kev txais cov kauj, thiab hloov mus rau hauv qhov hluav taws xob. Hauv txoj kev xav, peb tuaj yeem ua qhov ntawd yam tsis muaj cov khoom siv (piv txwv li tsis muaj lub capacitors). Txawm li cas los xij, qhov ua tau zoo yog qhov tsawg heev. Peb pib xav ua qhov yooj yim tsim uas siv tsuas yog cov coils thiab tsis muaj lwm yam khoom siv, txawm li cas los xij, lub zog ua haujlwm tsis zoo nws tsis tuaj yeem tig rau ntawm LED. Yog li peb tau tsiv mus rau qhov system resonant. Lub capacitor uas peb tau ntxiv resonates ntawm ib qhov tshwj xeeb (hauv qhov no txog 8kHz). Ntawm tag nrho lwm qhov zaus hauv Circuit Court tsis muaj txiaj ntsig zoo, tab sis ntawm qhov muaj tseeb resonant zaus nws dhau los ua haujlwm tau zoo. Tus inductor thiab capacitor ua zoo li tus hloov pauv ntawm hom. Ntawm cov kab xa tawm, peb muab tso rau hauv qhov me me thiab qhov siab tam sim no (10Vrms thiab 15Arms). Qhov ntawd xaus qhov tsim tawm> 400Vrms hla lub capacitor, tab sis ntawm qhov qis dua tam sim no. Qhov ntawd yog cov khawv koob ntawm cov hluav taws xob sib nqus! Cov hluav taws xob sib nqus tau suav los ntawm "Q factor". Hauv 40cm txoj kab uas hla txoj kab xa xov, ntsuas Q qhov ntsuas yog kwv yees li 40, txhais tau tias yog qhov ua tau zoo.

Peb simulated & txhim kho cov kauj nrog Infolytica's 2-D magneto static simulator. Qhov kev sim ntawd muab rau peb simulated qhov ntsuas rau txhua lub kauj, thiab kev sib koom ua ke ntawm ob lub kauj.

Sib Nqus Simulated Qhov Tseem Ceeb:

• Kev Xa Cov Chev = 4.35mH
• Tau Txais Chev = 0.105mH
• Kev sib koom ua ke = 9.87uH. K = 6.87e-3 (nrog cov coils sib cais los ntawm 0.2m)

Tom qab ntawd peb tau coj cov lej no thiab pub lawv rau hauv SPICE txhawm rau sim cov yam ntxwv hluav taws xob.

Koj tuaj yeem rub tawm cov ntaub ntawv simulation txuas nrog, thiab sim ua kom koj qhov kev ntsuas tau zoo thiab ntsuas!

Kuj tseem txuas nrog yog cov phiaj av, uas qhia pom cov hlau nplaum tsim los ntawm cov coils. Nws yog qhov nthuav tias txawm hais tias peb tab tom tso ntau lub zog, thaj chaw tsis muaj qhov me me zoo nkauj (hauv ntau qhov milliTesla). Qhov ntawd yog vim cov teb tau nthuav tawm thoob plaws thaj chaw loj. Yog li yog tias koj ntxiv (sib sau ua ke) cov hlau nplaum hla thaj chaw loj, nws yuav muaj txiaj ntsig zoo. Tab sis ntawm txhua qhov taw tes hauv qhov ntim nws me me. Raws li cov lus ceeb toom, qhov no yog vim li cas cov neeg hloov pauv siv hlau cores, yog li thaj chaw sib nqus tau mloog zoo nyob hauv ib cheeb tsam.