Isingeniso kumakhodi ombala we-Resistor
I-Pendahuluan
Ama-resistors angenye yezingxenye eziyisisekelo nezibalulekile kakhulu kuma-elekthronikhi. Umsebenzi wawo ukuvimbela ukuhamba kwamandla kagesi kusekethe. Ukuze sinqume inani lokumelana kwe-resistor, sivame ukusebenzisa ikhodi yombala etholakala emzimbeni we-resistor. Le khodi yombala ibalulekile ngoba ukumelana ngokuvamile akuvezwa ngezinombolo noma umbhalo kulezi zingxenye ezincane. Lesi sihloko sizoxoxa ngencazelo, umlando, indlela yokufunda , kanye nokubaluleka kwamakhodi ombala kuma-resistors.
Umlando wamakhodi ombala we-Resistor
Ngaphambi kokuba siqonde ukuthi singawafunda kanjani amakhodi ombala we-resistor, kuyasiza ukuqonda umlando wawo kuqala. Uhlelo lokubhala ikhodi yombala we-resistor lwaqala ukwenziwa ngokusemthethweni yi-Radio Manufacturers Association (RMA) ngawo-1920. Kusukela ngaleso sikhathi, ukusetshenziswa kwamakhodi ombala ukukhombisa amanani okumelana sekusabalele futhi kwamiswa ngendlela ejwayelekile. Ama-elekthronikhi anamuhla asasebenzisa kakhulu lolu hlelo ngenxa yokusebenza kwalo.
Ukuqonda Amakhodi Ombala Wokumelana
Ukubhala ikhodi yombala we-Resistor kuyindlela yokubhala amanani okumelana kanye nokubekezelelana kusetshenziswa amabhande anemibala azungeze umzimba we-resistor. Umbala ngamunye umelela inombolo ethile futhi unencazelo ethile esiza ekunqumeni ukumelana kwe-resistor. Ama-Resistor ngokuvamile anemigqa enemibala emine kuya kwemihlanu.
Indlela Yokufunda Amakhodi Ombala Wokumelana
Ku-resistor enemibala emine, ibhendi ngayinye inencazelo ethile. Uchungechunge lokufunda luqala kusukela ebhendini lokuqala bese luphela ngokulandelana okuthile. Nakhu okushiwo yibhendi ngayinye:
1. Ibhendi yokuqala: Inombolo yokuqala yenani lokumelana.
2. Ibhendi yesibili: Inombolo yesibili yenani lokumelana.
3. Ibhendi yesithathu: Isici sokuphindaphinda (siphinda kabili inani lokumelana).
4. Ibhendi yesine: Ukubekezelelana kwe-resistor.
Kuma-resistor anemibhendi yemibala emihlanu, i-oda licishe lifane, kodwa ngokufakwa kwesibalo sesithathu esibalulekile:
1. Ibhendi yokuqala: Inombolo yokuqala yenani lokumelana.
2. Ibhendi yesibili: Inombolo yesibili yenani lokumelana.
3. Ibhendi yesithathu: Inombolo yesithathu yenani lokumelana.
4. Ibhendi yesine: Isici sokuphindaphinda.
5. Ibhendi yesihlanu: Ukubekezelelana kwe-resistor.
Nasi ithebula elibonisa amanani amelwe umbala ngamunye:
| Umbala | Inombolo | Isiphindaphindi | Ukubekezelelana |
|————|——-|———————-|———|
| Okumnyama | 0 | 1 | – |
| Ushokoledi | 1 | 10 | ±1% |
| Okubomvu | 2 | 100 | ±2% |
| Orenji | 3 | 1,000 | – |
| Ophuzi | 4 | 10,000 | – |
| Okuluhlaza | 5 | 100,000 | ±0.5% |
| Okuluhlaza okwesibhakabhaka | 6 | 1,000,000 | ±0.25% |
| Okunsomi/Okuluhlaza okwesibhakabhaka| 7 | 10,000,000 | ±0.1% |
| Okumpunga | 8 | 100,000,000 | ±0.05% |
| Omhlophe | 9 | 1,000,000,000 | – |
| Igolide | – | 0.1 | ±5% |
| Isiliva | – | 0.01 | ±10% |
| Akukho | – | – | ±20% |
Isibonelo Sokufunda Ikhodi Yombala
Ake sibheke isibonelo sendlela yokufunda inani lokumelana ngokusekelwe kukhodi yombala ekhona:
Isithambisi esinezintambo ezine
Isibonelo, ake sithi kukhona i-resistor enekhodi yombala obomvu, obomvu, obomvu, nogolide. Nansi indlela yokuyifunda:
1. Iribhoni yokuqala (ebomvu) = 2
2. Iribhoni yesibili (ebomvu) = 2
3. Ibhendi yesithathu (ebomvu) = isici sokuphindaphinda 100
4. Ibhendi yesine (igolide) = ukubekezelelana ±5%
Ngakho-ke, inani lokumelana yileli:
\[ 22 \izikhathi eziyi-100 = 2200 \, \Omega \umbhalo{ noma } 2.2 \, k\Omega \]
Ngokubekezelela okungu-±5%.
Isivikelo Samabhendi Amahlanu
Isibonelo, ake sithi kukhona i-resistor enombala ophuzi, onsomi, obomvu, onsundu, noluhlaza okotshani. Nansi indlela yokuyifunda:
1. Ibhendi yokuqala (ephuzi) = 4
2. Ibhendi yesibili (onsomi) = 7
3. Iribhoni yesithathu (ebomvu) = 2
4. Ibhendi yesine (onsundu) = isici sokuphindaphinda 10
5. Ibhendi yesihlanu (eluhlaza okotshani) = ukubekezelelana ±0.5%
Ngakho-ke, inani lokumelana yileli:
\[ 472 \izikhathi eziyi-10 = 4720 \, \Omega \umbhalo{ noma } 4.72 \, k\Omega \]
Ngokubekezelela okungu-±0.5%.
Ukubaluleka Kokuqonda Amakhodi Ombala Wokumelana
Ukuqonda amakhodi ombala we-resistor kuyikhono elibalulekile kunoma ubani osebenza nge-elekthronikhi. Leli khono likuvumela ukuthi:
1. Thola Amanani Okumelana Ngokushesha: Awudingi amathuluzi engeziwe ukuthola inani lokumelana.
2. Ukugwema Amaphutha Esekethe: Ukukhetha inani elingalungile le-resistor kungabangela ukuthi isethethe ingasebenzi kahle noma ezinye izingxenye zonakale.
3. Khulisa Ukukhiqiza: Ngaleli khono, ungasebenza kahle futhi ngokushesha lapho uhlanganisa noma ulungisa amasekethe kagesi.
Isiphetho
Amakhodi ombala we-resistor ayindlela ephumelela kakhulu yokurekhoda amanani okumelana alezi zingxenye ezincane. Ngokuqonda izisekelo zokufunda amakhodi ombala we-resistor, ungabona ngokushesha nangokunembile amanani okumelana nokubekezelelana, okukusiza ukuthi uhlanganise futhi ulondoloze kangcono amasekethe kagesi . Ukuqonda okuqinile kwamakhodi ombala we-resistor kuzokwenza ube uchwepheshe onekhono kakhulu emhlabeni we-elekthronikhi.
Ngalesi sihloko, kunethemba lokuthi uzoyiqonda kangcono le ndlela futhi ungayisebenzisa empilweni yakho yansuku zonke , ikakhulukazi uma uvame ukusebenza ngamadivayisi kagesi noma amasekethe.
