DIY Analog Variable Bench Power Supply W/ Precision Tam Sim No: 8 Kauj Ruam (nrog Duab)

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:28

Hauv qhov haujlwm no kuv yuav qhia koj yuav siv LM317T uas muaj npe nrov nrog Cov Hluav Taws Xob Hluav Taws Xob Tam Sim No li cas, thiab yuav siv Linear Technology LT6106 qhov kev nkag siab tam sim no rau qhov ntsuas tam sim no li cas. Qhov Circuit no tuaj yeem tso cai rau koj siv ntau dua 5A, tab sis lub sijhawm no nws tau siv rau tsuas yog 2A lub teeb thauj khoom vim tias kuv xaiv 24V 2A tus hloov pauv me me thiab lub thawv me me. Thiab kuv nyiam cov zis hluav taws xob los ntawm 0.0V, tom qab ntawd kuv ntxiv qee qhov diode (s) hauv kab lus kom thim LM317 qhov tsawg kawg nkaus tso tawm hluav taws xob 1.25V. qhov spec no. kuj tseem tso cai rau koj tiv thaiv kev tiv thaiv luv. Cov kab hluav taws xob no tau sib koom ua ke los tsim qhov sib piv sib txawv ntawm lub rooj zaum lub zog uas ua rau 0.0V-28V thiab 0.0A-2A nrog qhov txwv tam sim no. Kev tswj hwm thiab kev ua suab nrov hauv pem teb yog qhov zoo heev hauv kev sib piv nrog similer DC-DC hloov pauv raws li cov khoom siv hluav taws xob. Yog li cov qauv no zoo dua los siv tshwj xeeb rau kev siv suab analog. Cia peb pib!

Kauj Ruam 1: Schematic thiab Daim Ntawv Teev Npe

Kuv xav qhia koj tag nrho cov phiaj xwm ntawm txoj haujlwm no.

Kuv tau faib lub qhov schematic hauv peb ntu kom yooj yim piav qhia.① AC Input section ② ② Middle section (DC Control circuits) ③ put Tshooj tawm.

Kuv xav txuas ntxiv piav cov npe ntu rau txhua ntu feem.

Kauj Ruam 2: Npaj rau Drill Case thiab Drilling

Peb yuav tsum khaws cov khoom sab nrauv thiab khawb qhov rooj (thaiv) ua ntej.

Cov ntaub ntawv tsim ntawm qhov haujlwm no tau ua tiav nrog Adobe illustrator.

Hais txog kev tso chaw ib feem, Kuv tau txiav txim siab ntau thiab yuam kev txiav txim siab thiab txiav txim siab ua thawj daim duab qhia.

Tab sis kuv nyiam lub sijhawm no vim kuv tuaj yeem npau suav kuv yuav ua dab tsi? lossis qhov twg zoo dua?

Nws zoo li tos yoj zoo. Nws yog lub sijhawm muaj txiaj ntsig tiag tiag! lol.

Xijpeem, Kuv xav muab cov ntaub ntawv.ai thiab.pdf ntawv ib yam nkaus.

Txhawm rau npaj rau rooj plaub drilling, luam tus qauv rau A4 daim ntawv nplaum thiab lo rau hauv rooj plaub.

Nws yuav yog cov cim thaum koj tshawb xyuas rooj plaub, thiab nws yuav yog cov tshuaj pleev ib ce tsim rau lub thawv.

Yog tias daim ntawv tau qias neeg, thov tev nws tawm thiab lo daim ntawv dua.

Yog tias koj tau npaj rau rooj plaub drilling, koj tuaj yeem pib qhov kev foob raws li cov cim hauv nruab nrab ntawm rooj plaub.

Kuv pom zoo kom koj piav qhia qhov loj ntawm qhov ntawm daim ntawv lo li 8Φ, 6Φ zoo li ntawd.

Kev siv cov cuab yeej yog lub laum hluav taws xob, cov khoom siv laum, cov cuab yeej siv cov kauj ruam, thiab cov cuab yeej siv tes nibbler lossis cov cuab yeej dremel.

Thov ceev faj thiab siv sijhawm txaus kom tsis txhob raug xwm txheej.

Kev Nyab Xeeb

Cov tsom iav kev nyab xeeb thiab hnab looj tes nyab xeeb yog tsim nyog.

Kauj Ruam 3: Section AC Input Section

Tom qab ua tiav cov ntaub ntawv drilling thiab ua tiav, cia peb pib ua cov laug cam thiab thaiv.

Nov yog cov npe ntawm ntu. Thov txim rau qee qhov txuas yog rau tus muag khoom Nyij Pooj.

Kuv vam tias koj tuaj yeem tau txais cov khoom sib xws los ntawm koj cov neeg muag khoom nyob ze.

1. Use ntu ntawm section AC Input section

Tus Muag Khoom: Marutsu qhov chaw- 1 x RC-3:

Nqe: ￥ 1,330 (kwv yees li US $ 12)

- 1 x 24V 2A AC Power Transformer [HT-242]:

Nqe: ￥ 2, 790 (kwv yees li US $ 26) yog tias koj nyiam 220V cov tswv yim, xaiv [2H-242] ￥ 2, 880

- 1 x AC code nrog Plug:

Nqe: ￥ 180 (kwv yees li US $ 1.5)

-1 x AC Fuse box 【F-4000-B】 Sato Parts: https://www.marutsu.co.jp/pc/i/15361/Price: ￥180 (kwv yees li US $ 1.5)

- 1 x AC Power Switch (Loj) NKK 【M-2022L/B https: https://www.marutsu.co.jp/pc/i/15771/Price: ￥ 380 (kwv yees li US $ 3.5)

- 1 x 12V/24V Hloov (me me) Miyama 【M5550K https: https://www.marutsu.co.jp/pc/i/112704/Price: 1 181 (kwv yees li US $ 1.7)

- 1 x Choj rectifire diode (loj) 400V 15A 【GBJ1504-BP】: https://www.marutsu.co.jp/pc/i/12699673/Price: ￥ 318 (kwv yees li US $ 3.0)

- 1 x Choj rectifire diode (me me) 400V 4A 【GBU4G-BP】: https://www.marutsu.co.jp/pc/i/12703750/Price: ￥ 210 (kwv yees li US $ 2.0)

- 1 x Cov condenser Loj 2200uf 50V 【ESMH500VSN222MP25S https: https://www.marutsu.co.jp/pc/i/52022/Price: 40 440 (kwv yees li US $ 4.0)

-1 x 4p Lagged terminal 【L-590-4P https: https://www.marutsu.co.jp/pc/i/17474/Price: ￥ 80 (kwv yees li US $ 0.7)

Thov txim rau qhov tsis yooj yim txuas rau Nyij Pooj qhov chaw, thov tshawb xyuas tus muag khoom tuav cov khoom sib xws nrog xa cov txuas ntawd.

Kauj Ruam 4: Section Ntu Nruab Nrab (DC Tswj Circuit)

Los ntawm no, nws yog kev tswj hwm ib feem ntawm lub hwj chim tseem ceeb DC qhov hluav taws xob.

Kev ua haujlwm ntawm ntu no yuav piav qhia tom qab raws li cov txiaj ntsig simulation ib yam.

Yeej kuv tab tom siv LM317T qub nrog lub zog loj transistor rau qhov muaj peev xwm loj tam sim no kom txog thaum 3A zoo ib yam.

Thiab kom thim 1.25V LM317T qhov tsawg kawg tso zis qhov hluav taws xob, Kuv ntxiv D8 diode rau Vf rau Q2 Vbe.

Kuv twv Vf ntawm D8 yog kwv yees. 0.6V thiab Q2 Vbe kuj kwv yees. 0.65V ces tag nrho yog 1.25V.

(Tab sis qhov hluav taws xob no nyob ntawm Yog thiab Ibe, yog li kev saib xyuas xav tau los siv txoj hauv kev no)

Ib feem nyob ib ncig ntawm Q3 puag ncig los ntawm kab kab tsis tau teeb tsa. (rau kev xaiv rau yav tom ntej thermal kaw feature.)

Cov khoom siv yog raws li hauv qab no, 0．1Ω 2W Akizuki Densho

tshav kub kub 【34H115L70 Parts Multsu Parts

Rectifier Diode (100V 1A) IN4001 ebay

LM317T Voltage Control IC Akizuki Denshi

General Purose NPN Tr 2SC1815 Akizuki Denshi

U2 LT6106 Sense Tam Sim No IC Akizuki Denshi

Suab hloov PCB rau LT6106 (SOT23) Akizuki Denshi

U3 Comparator IC NJM2903 Akizuki Denshi

POT 10kΩ 、 500Ω ５KΩ Akizuki Denshi

Kauj Ruam 5: Section Tshooj Lus Tawm

Qhov kawg yog Tshooj Tawm.

Kuv nyiam retro analog ntsuas, tom qab ntawd kuv tau siv lub ntsuas ntsuas analog.

Thiab kuv tau txais Poly Hloov (rov ua dua fuse) rau kev tiv thaiv tawm.

Cov khoom siv yog raws li hauv qab no, Resetable fuse 2.5Ａ REUF25 Akizuki Denshi

2.2KΩ 2W tus neeg tso ntshav tso npe Akizuki Denshi

32V Analog volt meter (Meter Panel) Akizuki Denshi

3A Analog volt meter (Meter Panel) Akizuki Denshi

Output Terminal MB-126G Liab thiab Dub Akizuki Denshi

Universal Bread Board 210 x 155mm Akizuki Denshi

Terminal rau qhob cij board (raws li koj nyiam) Akizuki

Kauj Ruam 6: Ua Kom Zoo Dua thiab Xeem

Txog tam sim no, kuv xav tias koj lub rooj tsavxwm tseem ua tiav.

Thov ua txuas nrog txuas mus rau cov khoom txuas rau hauv rooj plaub zoo li lub plhaub taum, lub ntsuas, lub dav hlau.

Yog tias koj ua tiav txoj haujlwm.

Kauj ruam kawg yog ntsuas qhov project.

Cov khoom siv hluav taws xob analog yooj yim tshwj xeeb no yog

1, 0 ～ 30V tso zis hluav taws xob ntxhib hloov thiab kho kom raug.

2, 0 ～ 2.0A tso zis tam sim no nrog tus txwv (Kuv pom zoo kom siv hauv kev hloov pauv tshwj xeeb.)

3, Cov zis hluav taws xob hloov pauv ntawm lub vaj huam sib luag rov qab rau txo qhov ib puag ncig poob

(0 ～ 12V, 12 ～ 30V)

Kev Xeem Pib

Xeem kev ua haujlwm hauv Circuit Court.

Kuv siv 5W 10Ω resister ua lub dummy load raws li qhia hauv daim duab.

Thaum koj teeb 5V, nws muab 0.5A. 10V 1A, 20V 2.0A.

Thiab thaum koj hloov kho qhov txwv tam sim no rau qib uas koj nyiam, qhov txwv tam sim no ua haujlwm.

Hauv qhov no, cov zis hluav taws xob tau qis dua raws li koj qhov kev hloov kho tam sim no.

Kev Ntsuas Oscilloscope waveform

Kuv xav qhia koj oscilloscope waveforms thiab.

Thawj qhov kev yoj yog qhov ntsuas hluav taws xob nce ntxiv thaum koj qhib lub zog ntawm chav tsev.

CH1 (Xiav) tsuas yog tom qab rectifier thiab 2200uF capacitor kwv yees. 35V 5V/faib).

CH2 (Ntuj xiav) yog qhov hluav taws xob tso tawm ntawm chav tsev (2V/div). Nws tau hloov pauv mus rau 12V thiab txo cov lus tawm suab.

Qhov thib ob nthwv dej loj dua nthwv dej.

CH1 thiab CH2 tam sim no yog 100mV/div. CH2 ripple tsis pom vim LM317 IC cov lus tawm tswv yim yog ua haujlwm raug.

Cov kauj ruam tom ntej, Kuv xav sim ntawm 11V nrog 500mA thauj khoom tam sim no (22Ω 5W). Koj puas nco qab Ohm qhov qis I = R / E?

Tom qab ntawd CH1 cov tswv yim hluav taws xob ripple loj dua rau 350mVp-p, tab sis tsis muaj ripple pom ntawm CH2 tso zis hluav taws xob kuj.

Kuv xav piv rau qee qhov DC-DC rov qab hom tswj nrog tib 500mA thauj khoom.

Loj 200mA hloov suab nrov tau pom ntawm CH2 cov zis.

Raws li koj pom, Kev hais lus dav dav, Cov khoom siv hluav taws xob sib xws yog kom haum rau daim ntawv thov lub suab qis.

Yuav ua li cas txog qhov ntawd?

Yog tias koj muaj lus nug ntxiv, thov koj xav nug kuv.

Kauj Ruam 7: Cov Ntawv Ntxiv 1: Cov Lus Qhia Ua Haujlwm hauv Circuit Court thiab Cov txiaj ntsig simulation

Wow, ntau tus neeg nyeem ntau dua 1k tau mus ntsib kuv thawj zaug.

Kuv tsuas yog kawm kom pom ntau lub txee saib.

Zoo, kuv xav rov qab mus rau kuv qhov kev kawm.

Tawm tswv yim Tshooj Simulation cov txiaj ntsig

Kuv tau siv LT Spice simulator los txheeb xyuas qhov tsim ntawm Circuit.

Hais txog yuav txhim kho lossis yuav siv LT Spice li cas, thov google nws.

Nws yog qhov pub dawb thiab zoo analog sim kawm.

Thawj qhov schematic yog qhov yooj yim rau LT Spice simulation thiab kuv xav xa.asc cov ntaub ntawv ib yam.

Qhov thib ob schematic yog rau kev sim tawm tswv yim.

Kuv tau piav qhia qhov hluav taws xob qhov hluav taws xob DC offset 0, qhov dav 36V, zaus 60Hz, thiab cov tswv yim tawm tsam 5ohm raws li kev sib piv tshwj xeeb rau cov hloov pauv. Raws li koj paub, kev hloov pauv hluav taws xob tso tawm tau tshwm sim hauv rms, tom qab ntawd 24Vrms cov zis yuav tsum yog 36Vpeak.

Thawj qhov kev hloov pauv yog qhov hluav taws xob qhov hluav taws xob + (ntsuab) thiab txuas tus choj + w/ 2200uF (xiav). Nws yuav mus rau ib puag ncig 36V.

LT Spice siv tsis tau qhov sib txawv potentiometer, Kuv xav teeb tsa tus nqi ruaj khov rau hauv Circuit Court no.

Cov zis hluav taws xob 12V tam sim no txwv 1A zoo li ntawd. Kuv xav mus rau kauj ruam tom ntej.

Tshooj Tswj Hluav Taws Xob siv LT317T

Daim duab tom ntej no qhia LT317 kev ua haujlwm, qhov tseem ceeb LT317 ua haujlwm li hu ua shunt regulator nws txhais tau tias Cov zis hluav taws xob tus pin rau Adj. tus pin yog ib txwm 1.25V siv qhov hluav taws xob tsis hais txog qhov input voltage.

Nws kuj tseem txhais tau tias qee qhov ntshav tam sim no hauv R1 thiab R2. Tam sim no LM317 adj. tus pin rau R2 kuj tseem muaj, tab sis me me li 100uA ces peb tuaj yeem tsis quav ntsej nws.

Txog tam sim no, koj tuaj yeem nkag siab meej tam sim no I1 uas ntshav hauv R1 ib txwm tas li.

Tom qab ntawd peb tuaj yeem ua tus lej R1: R2 = Vref (1.25V): V2. Kuv xaiv 220Ω rau R1, thiab 2.2K rau R2, Tom qab ntawd cov mis hloov pauv V2 = 1.25V x 2.2k / 220 = 12.5V. Paub txog qhov hluav taws xob tso tawm tiag yog V1 thiab V2.

Tom qab ntawd 13.75V tau tshwm ntawm LM317 tus pin tso tawm thiab GND. Thiab tseem paub txog thaum R2 yog xoom, 1.25V tso tawm

nyob twj ywm.

Tom qab ntawd kuv siv cov tshuaj yooj yim, Kuv tsuas yog siv cov khoom xa tawm Vbe thiab diode Vf kom tso tseg 1.25V.

Kev hais lus dav Vbe thiab Vf nyob ib puag ncig 0.6 txog 0.7V. Tab sis koj kuj yuav tsum paub txog Ic - Vbe thiab Yog - Vf tus yam ntxwv zoo.

Nws qhia tau hais tias yuav tsum tau siv cov dej ntws tawm tam sim no thaum koj siv txoj hauv kev no kom tshem tawm 1.25V.

Yog li kuv ntxiv cov ntawv tso npe ntshav R13 2.2K 2W. Nws los ntshav approx. 5mA thaum 12V tso zis.

Txog tam sim no, Kuv nkees me ntsis los piav. Kuv xav tau pluas su thiab noj su npias. (Lol)

Tom qab ntawd, Kuv xav txuas ntxiv mus rau lub lim tiam tom ntej no maj. Yog li thov txim rau koj qhov tsis yooj yim.

Cov kauj ruam tom ntej no kuv xav piav qhia txog qhov txwv tam sim no ua haujlwm tau zoo li cas, siv LT Spice thauj khoom ntsuas ntsuas ntsuas qib simulation.

Tshooj Limit Tam sim no siv LT6106

Thov mus saib Linear Technology Site thiab saib cov ntawv rau LT6106 daim ntawv thov.

www.linear.com/product/LT6106

Kuv xav qhia cov duab kos los piav qhia rau daim ntawv thov uas piav qhia AV = 10 rau 5A piv txwv.

Muaj 0.02 ohm qhov kev nkag siab tam sim no sau npe thiab hnov cov zis los ntawm tus pin tam sim no 200mV/A tom qab ntawd

tus pin tawm yuav nce mus txog 1V ntawm 5A, txoj cai?

Cia peb xav txog kuv daim ntawv thov nrog qhov piv txwv no hauv siab.

Lub sijhawm no peb xav siv qhov txwv tam sim no hauv qab 2A, tom qab ntawd 0.1 ohm yog qhov tsim nyog.

Hauv qhov no tawm tus pin nce 2V ntawm 2A? Nws txhais tau tias kev nkag siab tam sim no yog 1000mV/A.

Tom qab ntawd peb yuav tsum ua, tsuas yog Qhib / OFF LM317 ADJ tus pin nrog cov piv txwv sib piv

zoo li NJM2903 LM393, lossis LT1017 thiab generic NPN transistor zoo li 2SC1815 lossis BC337?

uas txiav tawm nrog qhov ntsuas hluav taws xob pom raws li qhov pib.

Txog rau tam sim no, cov lus piav qhia hauv Circuit Court tau dhau mus, thiab cia pib ua tiav kev sim ua Circuit!

Kauj Ruam 8: Cov Ntawv Ntxiv 2: Circuit Simulation Simulation thiab Simulation Results

Kuv xav piav qhia qhov hu ua simulation theem.

Ib qho yooj yim simulation simulates tsuas yog ib qho xwm txheej, tab sis nrog cov kauj ruam simulation, peb tuaj yeem hloov cov xwm txheej tsis tu ncua.

Piv txwv li, qib kev sim ua lub ntsiab lus rau kev tso npe R13 tau qhia hauv daim duab tom ntej thiab hauv qab no.

.step param Rf npe 1k 100 24 12 6 3

Nws txhais tau tias R13 tus nqi pom zoo li {Rf} txawv ntawm 1K ohm, (100, 24, 12, 6) txog 3 ohm.

Raws li pom tseeb nkag siab, thaum 1K ohm tam sim no kos rau thauj R yog ①12mA

(vim tias qhov hluav taws xob tso tawm tam sim no tau teeb tsa rau 12V).

thiab ②120mA ntawm 100 ohm, ③1A ntawm 12 ohm, ④2A ntawm 6 ohm, ⑤4A ntawm 3 ohm.

Tab sis koj tuaj yeem pom qhov pib qhov hluav taws xob tau teeb tsa rau 1V los ntawm R3 8k thiab R7 2k (thiab qhov ntsuas hluav taws xob rau kev sib piv yog 5V).

Tom qab ntawd los ntawm qhov xwm txheej ③, qhov kev txwv tam sim no yuav tsum ua haujlwm. Cov duab tom ntej yog simulation tshwm sim.

Yuav ua li cas txog qhov ntawd txog tam sim no?

Tej zaum nws yuav nkag siab me ntsis. vim qhov kev sim sim yuav nyuaj rau nyeem.

Cov kab ntsuab qhia cov zis hluav taws xob thiab cov kab xiav qhia tawm tam sim no.

Koj tuaj yeem pom qhov hluav taws xob tseem nyob ruaj khov mus txog 12 ohm 1A, tab sis los ntawm 6 ohm 2A qhov hluav taws xob txo mus rau 6V kom txwv tam sim no rau 1A.

Koj tseem tuaj yeem pom DC qhov hluav taws xob tso tawm los ntawm 12mA txog 1A yog me ntsis poob.

Nws yuav luag tshwm sim los ntawm Vbe thiab Vf qhov tsis sib xws raws li kuv tau piav qhia hauv ntu yav dhau los.

Kuv xav ntxiv qhov simulation tom ntej.

Yog tias koj tso tseg D7 ntawm kev sim sim ua raws li txuas nrog, cov txiaj ntsig hluav taws xob tso tawm yuav zoo dua qub.

(tab sis qhov hluav taws xob tso tawm tau nce siab dua li yav dhau los, tawm ntawm chav kawm.)

Tab sis nws yog hom kev lag luam tawm yam, vim tias kuv xav tswj qhov haujlwm no los ntawm 0V txawm tias kev ruaj ntseg ploj me ntsis.

Yog tias koj pib siv kev sib piv zoo ib yam li LT Spice, nws yooj yim los tshuaj xyuas thiab sim koj li kev xav hauv Circuit Circuit.

Ummm, thaum kawg nws zoo li kuv tau ua tiav cov lus piav qhia thaum kawg.

Kuv xav tau ob peb npias rau hnub so (lol)

Yog tias koj muaj lus nug txog qhov haujlwm no, thov koj xav nug kuv.

Thiab kuv vam tias koj txhua tus yuav txaus siab rau lub neej DIY zoo nrog kuv tsab xov xwm!

Hais txog,