PCB imitation board is PCB copy board, PCB copy board is PCB clone, is PCB design reverse engineering. Firstly, the components on the PCB board are removed and made into BOM, and the empty board is scanned into pictures and restored into PCB board drawing files by board copying software. Xa cov ntawv PCB teeb duab mus rau lub Hoobkas PCB kom ua lub rooj tsavxwm (PCBA), tom qab ntawd ntxiv cov khoom siv (yuav cov khoom sib xws raws li BOM), thiab PCB pawg thawj coj yog zoo ib yam li thawj PCB pawg thawj coj.

Los ntawm PCB kev luam cov thev naus laus zis tuaj yeem ua tiav txhua yam khoom siv hluav taws xob, cov khoom siv hluav taws xob cloning.

Luam lub rooj tsavxwm tseem hu ua hloov pawg thawj coj, yog los tsim PCB pawg thawj coj saib rov qab thev naus laus zis kev tshawb fawb. Hauv kev hais txog ntau cov ntaub ntawv, pawg thawj coj saib xyuas cov txheej txheem tau sau tseg raws li hauv qab no:

Thawj kauj ruam, tau txais PCB, ua ntej tshaj plaws ntawm daim ntawv kom sau tag nrho cov khoom siv ntawm tus qauv, ntsuas, thiab txoj haujlwm, tshwj xeeb tshaj yog cov diode, peb txoj kab yeeb nkab, IC thais taw qhia. Nws yog qhov zoo tshaj los nqa ob daim duab ntawm txoj haujlwm ntawm kev caij ski nrog lub koob yees duab digital. Tam sim no PCB lub rooj tsav xwm hauv Circuit board tau nce ntau dua li saum toj no diode triode qee qhov tsis ua tib zoo saib yooj yim tsis tuaj yeem pom.

Kauj Ruam 2: Tshem tag nrho cov khoom thiab tshem cov tin los ntawm PAD qhov. Ntxuav PCB nrog cawv thiab muab tso rau hauv lub tshuab luam ntawv uas ntsuas ntawm qhov siab me ntsis pixels kom tau txais cov duab zoo dua. Tom qab ntawd, txhuam cov txheej saum toj thiab hauv qab maj mam maj mam nrog cov ntawv xov dej kom txog thaum zaj duab xis tooj liab ci. Muab lawv tso rau hauv lub tshuab luam ntawv, pib PHOTOSHOP, thiab txhuam ob txheej sib cais ua xim. Nco ntsoov tias PCB yuav tsum tau muab tso rau hauv kab rov tav thiab ntsug nyob rau hauv lub tshuab luam ntawv, txwv tsis pub cov duab scanned siv tsis tau.

The third step, adjust the contrast and shade of the canvas, so that the part with copper film and the part without copper film contrast strongly, and then turn the subgraph to black and white, check whether the lines are clear, if not, repeat this step. Yog tias nws meej, khaws daim duab ua xim dub thiab dawb BMP hom ntawv top.bmp thiab bot.bmp. Yog tias muaj teeb meem nrog daim duab, koj tuaj yeem siv PHOTOSHOP los kho thiab kho nws.

The fourth step is to convert the two BMP files into PROTEL files respectively, and transfer two layers into PROTEL. For example, the positions of PAD and VIA that have passed the two layers basically coincide, indicating that the previous steps have been done well. If there is any deviation, repeat the third step. Yog li ntawd, PCB daim ntawv theej yog qhov ua haujlwm tau zoo heev, vim tias teeb meem me me yuav cuam tshuam rau qhov ua tau zoo thiab qib sib xws tom qab pawg thawj coj theej.

Step 5, convert TOP layer BMP to TOP.PCB, make sure to convert SILK layer, that is the yellow layer, then you trace the line on TOP layer, and place the device according to the drawing of step 2. Rho tawm SILK txheej tom qab pleev xim. Rov ua dua kom txog rau thaum txhua txheej tau kos.

Kauj Ruam 6, hauv PROTEL, hu rau saum. PCB thiab bot. PCB, thiab muab lawv tso ua ib daim duab.

Step 7, use laser printer to print the TOP LAYER and the BOTTOM LAYER to transparent film (1:1 ratio), put the film on that PCB and compare if it is wrong, if it is right, you are done.

A copy of the original board was created, but it was only half done. Muaj qhov kev sim txawm tias, kev siv tshuab thev naus laus zis uas ntsuas cov ntawv sib dhos zoo ib yam li thawj lub rooj tsavxwm. Yog nws zoo ib yam ces nws yeej ua tiav.

hais: If it is a multi-layer board but also carefully polished to the inside of the inner layer, at the same time repeat the third to the fifth step of copying board steps, of course, the graphics of the name is different, according to the number of layers to decide, the general double panel copying board is much simpler than the multi-layer board, multi-layer copying board is prone to misalignment, So the multilayer board copy board to be particularly careful and careful (the internal through hole and not through hole is prone to problems).

Ob chav vaj huam sib luag txoj kev luam:

1. Luam theej duab txheej sab saud thiab qis dua ntawm daim phiaj hluav taws xob kom txuag ob daim duab BMP.

2. Open quickPC 2005, click “File” and “Open Base” to open a scanned image. Nthuav lub vijtsam nrog PAGEUP, saib ncoo, tso ib daim ntaub raws PP, saib kab ntawv raws li kab PT …… Just like a child drawing, draw it in the software and click “Save” to generate a B2P file.

3. Nyem “Cov Ntaub Ntawv” thiab “Qhib Daim Ntawv Qhia Hauv Paus” kom qhib lub scan daim duab qhia xim ntawm lwm txheej;

4. Click “File” and “Open” to open the previously saved B2P file. We can see that the newly copied board is superposed on this picture — the same PCB board with holes in the same position, but the circuit connections are different. Yog li peb nias “Xaiv” – “Txheej Txheej” txhawm rau tua cov kab saum toj kawg nkaus thiab cov kab lo lo lo ntxhuav ntawm no, tawm tsuas yog ntau txheej ntawm qhov.

5. Cov qhov nyob rau txheej txheej saum toj kawg nkaus yog nyob hauv tib txoj haujlwm zoo li qhov nyob hauv txheej txheej hauv qab. Tam sim no peb tuaj yeem taug cov kab hauv cov txheej hauv qab ib yam li peb tau ua thaum tseem yau. Nyem “Txuag” dua – cov ntaub ntawv B2P tam sim no muaj cov ntaub ntawv nyob rau theem saum thiab hauv qab.

6. Nyem “File” “Export to PCB File”, koj tuaj yeem tau txais PCB cov ntaub ntawv nrog ob txheej txheej ntawm cov ntaub ntawv, uas tuaj yeem hloov kho lub rooj tsavxwm lossis daim duab qhia chaw lossis xa ncaj qha mus rau PCB phaj Hoobkas rau kev tsim khoom

Cov txheej txheem txheej txheem txheej txheem ntau txheej:

In fact, the four board copy board is repeated copy two double panels, six is repeated copy three double panels…… The layers are daunting because we can’t see the wiring inside. Lub rooj sib tham ntau txheej txheej, peb yuav pom nws lub ntiaj teb sab hauv li cas? – txheej.

Now there are many ways to layer, there are potion corrosion, tool stripping, but it is easy to layer too much, loss of data. Experience tells us that sandpaper is the most accurate.

Thaum peb ua tiav kev luam cov txheej saum toj thiab hauv qab ntawm PCB, peb feem ntau siv cov ntawv xuab zeb los zom cov txheej saum npoo thiab qhia cov txheej sab hauv. Sandpaper yog cov ntawv xuab zeb zoo tib yam muag hauv khw muag khoom kho vajtse, feem ntau yog muab tso rau ntawm PCB, thiab tom qab ntawd tuav cov ntawv xuab zeb, sib npaug rau ntawm PCB (yog tias lub rooj tsavxwm me me, tseem tuaj yeem tso rau ntawm cov ntawv xuab zeb, nrog ib tus ntiv tes tuav PCB) ntawm cov ntawv txhuam txhuam). Lub ntsiab lus yog kom nws du kom nws txawm tias.

Silk screen thiab roj ntsuab feem ntau tau so tawm, tooj liab hlau thiab tooj liab tawv yuav tsum tau so ntau zaus. Feem ntau hais lus, bluetooth board tuaj yeem so hauv ob peb feeb, txog kaum feeb nco; Tau kawg, nrog lub zog ntau dua, nws siv sijhawm tsawg dua; Lub paj muaj zog yuav muaj sijhawm me ntsis ntxiv.

Zeb phaj yog cov phiaj xwm feem ntau siv hauv kev faib tawm tam sim no, tab sis kuj yog kev lag luam tshaj plaws. Peb tuaj yeem nrhiav tau ib daim PCB uas tau muab pov tseg pov tseg los sim. Qhov tseeb, nws tsis yog txheej txheem nyuaj rau zom cov laug cam, tab sis nws tsuas yog me ntsis tho txawv. Nws siv qee qhov kev rau siab, thiab tsis tas yuav txhawj xeeb txog kev sib tsoo lub rooj tsavxwm hla thiab rau koj cov ntiv tes.