Chodetsa resistors - kodi njira zitatu

Aliyense nawo yokonza zipangizo zamagetsi, kudziwa kuti nthawi zina zofunikira kudziwa akunja view wa resistor wa chipembedzo chake. Chophweka njira kuyeza kukana ndi ohmmeter, koma vuto Sizotheka kuti unsolder popanda kuwononga gulu dera, makamaka Mipikisano magawo koma zimachitika kuti pali kukayikira umphumphu wa kulankhula za mkati. Ngati muli dera, ndi zophweka - inu mukhoza kuyang'ana pa izo ndi kuwona kuti R18 Mwachitsanzo, 47 ohms. Ndipo ngati icho sichiri, ndipo muyenera kudziwa, ndi chiwembu adzayenera kuchita chiyani?

Mwamwayi, opanga zigawo pakompyuta kugwirizana ndi mzake, ndipo pali muyezo chodetsa resistors. N'zoona kuti lasintha masiku ano.

Ambiri mu nthawi yathu ndi resistors mitundu yosiyanasiyana. N'zosavuta, ndi kuwerenga chipembedzo, atagwira losavuta makatoni decoder akanthawi chinthu. chipangizo Izi m'zinenero, pali pa wailesi iliyonse, ndipo ndi wotsika mtengo, kotero kumbukirani mtengo mtundu Sikuti. Chodetsa resistors ndi kulimbikira ntchito mphete utoto wa mitundu yosiyanasiyana, omwe akusonyeza nambala, ndi multiplier zinthu molondola.

N'kupanga kupezeka kwa atatu kapena asanu. Werengani iwo kukhala woyamba, pafupi mmodzi wa mosiyana. Mwachitsanzo, n'kupanga anayi. Choyamba - bulauni, ndi zina - wakuda, wachitatu - wofiira, wachinayi - imvi. M'pofunika imbani decoder mitundu awa, kusowa wachitatu (payenera kusankha malo a "ayi"). Kumaliza ndi lolondola 1 kW 0, 05%. Ngati magulu atatu, lolondola ndi 20%.

Nthawi zina pali kufunika kuthana ndi luso lakale Soviet, amene adakali mu ntchito. Tsiku lina uja, anali zosamveka ndi yonyansa, koma nthawi wasonyeza sichisinthasinthanso zodabwitsa zitsanzo zina zida izi, ndipo tsopano ngakhale nthawi zina amatchedwa "mpesa." Chodetsa Soviet zopangidwa resistors sizivuta mtundu, iwo ali chabe olembedwa chipembedzo Mwachitsanzo, 4K7 zikutanthauza 4700 ohms. Ndizo zonse. Mwachidule ndi bwino. Mmodzi drawback - analembapo kuti akhale pansi, Union RADIOZAVOD kawirikawiri ntchito "kuima mmwamba" khamu la kukana, iwo amakondedwa ndi Japanese kupulumutsa gulu danga.

The miniaturization zida opanga pakompyuta kuika patsogolo kufunika kuyambitsa njira zatsopano za unsembe. resistors chakale soldering kudzera maenje pa bolodi mu "ubwenzi" kapena "chigonere" malo amatenga malo kwambiri, ndipo ili ndi njira yatsopano ya kusonkhana ndi microplate - smd. Mu acronym izi English - encrypted mawu atatu: «pamwamba» - pamwamba, «phiri» - unsembe ndi «luso» - zikuonekeratu kuti njira. mbali zazing'onozing'ono soldered mwachindunji padziko njanji, popanda mabowo ndi miyendo. Iwo anatenga resistors latsopano olemba, ndi mbali zina, monga diodes ndi capacitors komanso.

Chodetsa smd resistors penapake amatikumbutsa abwino akale Soviet. Iwo kusindikizidwa manambala ndi makalata. kusiyana akadali apo. kalata si nthawi zonse zilipo, ngati n'koyenera, «R» ntchito monga mfundo kugawaniza.

Mwachitsanzo, 2183 zikutanthauza kuti 218 ayenera kuchulukitsa ndi 1000, akutembenukira 218 ohms. Kukana, ndi kulolerana wa 10% amalembedwa ndi manambala anayi, yotsirizira amatanthauza mmene kumanga khumi ndi kuchulukitsa ndi zotsatira za zitatu manambala chiwerengero anapanga ndi manambala awiri oyamba.

resistors pang'ono kovuta smd ndi kalasi apamwamba quality, ndi kulolerana wa 1%. Apa mlingo wa makumi kukukhala kalata Mwachitsanzo, D - 10 cubed. Ngati resistor ndi linalembedwa 10D, ndi 10 ohms.

Komanso misonkhano matebulo, ndi katswiri kukhala ndi galasi lokulitsira, monga zilembo ang'ono kwambiri!