Resistor Symbols: Gwaro Rakazara reDhizaini Yedunhu

1. Nhanganyaya: Sei Symbols Resistor Akakosha Mudhizaini Yedunhu

MaResistors ndiwo anonyanya kushandiswa mukugadzira ma "electronic circuit". Kunzwisisa zviratidzo zve resistor nemazvo kunoderedza kusanzwisisika kwezvirongwa uye kunovandudza kushanda zvakanaka kwekutaurirana pakati pema "design" mumapoka einjiniya.

Gwaro iri rinotsanangura mwero wepasi rose wezviratidzo zve resistor (IEC vs ANSI), mhando dzakasiyana dze resistor dzinosanganisira magadzirirwo akagadzika, anoshanduka, uye anogadziriswa, uye maitiro akajairika ekunyora munzvimbo dzePCB. Kuziva zviratidzo izvi zve resistor zvakakosha kunoumba hwaro hwekunzwisisa zvirevo zvine chekuita nazvo zvakaita se tolerance ratings, temperature coefficient of resistance (TCR), uye zvinodiwa zve power dissipation.

2. Global Standards yeResistor Symbols: IEC vs ANSI

Yakasiyana resistor chiratidzo zviyero zviripo pasi rose, zvichigadzira nyonganiso kana zvikwata zveinjiniya zvabatana mumatunhu. Kuziva magungano ese ari maviri kunodzivirira kududzira zvisizvo mumagwaro edunhu uye zvirevo zvekugadzira.

2.1 IEC 60617 Resistor Symbol (International Standard)

Iyo IEC yakajairwa inoratidzira resistor zviratidzo semabhokisi ane rectangular ane maviri terminal anotungamira anokwira kubva kune akapesana. Uku kumiririrwa kwakachena, kwazvino kwave kugamuchirwa kwakapararira muEuropean Union, Asia kusanganisira China, uye makambani mazhinji epasi rose.

Chiratidzo cherectangular resistor chinopa mutsauko wakajeka wekuona kubva kune zvimwe zvinhu zvisingaite uye inorerutsa dhizaini yekudhirowa mune komputa-inobatsira dhizaini software.

2.2 ANSI Resistor Symbol (US Standard)

Kokorodzano yeANSI inomiririra zviratidzo zvinopikisa zvine yakasarudzika zigzag waveform pateni. Ichi chiratidzo chechinyakare chinoramba chiripo muUnited States zvinyorwa zveinjiniya uye zvenhaka tekinoroji zvinhu.

Mazhinji mainjiniya eAmerica akadzidziswa makore ekuma1990 asati aramba achifarira iyi dhizaini, zvichiita kuti ive ruzivo rwakakosha pakuongorora magadzirirwo edunhu redunhu kana kushandira pamwe nezvikwata zveUS.

2.3 Kuenderana pakati peResistor Symbol Standards

Yemazuva ano yemagetsi dhizaini otomatiki (EDA) software inotsigira ese ari maviri resistor chiratidzo magungano. Nekudaro, IEC rectangular zviratidzo zvave sarudzo ine simba kune itsva PCB dhizaini uye zvinyorwa zvekugadzira.

Misiyano yakakosha inosanganisira:

• Kujeka kwekuona -IEC rectangular fomati inoderedza kuomarara kudhirowa mune dense schematics
• Zvido zvedunhu - ANSI zigzag inoramba yakajairwa muUS legacy zvinyorwa
• Kugamuchirwa kwekugadzira -Dzimba zhinji dzePCB dzekugadzira ikozvino dzakamira paIEC notation
• Software kugarisana -Ese makuru EDA mapuratifomu anotsigira shanduko isina musono pakati pemafomati

3. Kukamurwa kweResistor Symbols neRudzi

Resistor zviratidzo zvinosiyana zvakanyanya zvichienderana nebasa ravo remagetsi mukati memasekete. Kunzwisisa misiyano iyi kunogonesa kusarudzwa kwechikamu uye kududzira kwakaringana kwehurongwa.

3.1 Yakagadziriswa Resistor Symbols

Fixed resistors anoshandisa iyo basic rectangular (IEC) kana zigzag (ANSI) resistor chiratidzo isina mamwe mamark. Vagadziri vedunhu vanonyora zvinhu izvi nemareferenzi edhizaini seR1, R5, kana R23, inoperekedzwa nemaitiro ekupikisa akadai se10k kana 4.7Ω.

Iyo resistor chiratidzo pachayo haina ruzivo nezve yemuviri pasuru zviyero. Mamiriro chaiwo etsoka se0402 kana 0603 anongoonekwa chete muPCB dhizaini uye nechikamu mafaera eraibhurari.

3.2 Variable Resistor Symbols

Variable resistors zvinosanganisira imwe chiratidzo chemuseve kuratidza yavo inogadziriswa terminal, ichivasiyanisa kubva kune yakatarwa-yakakosha zvikamu.

3.2.1 Rheostat Symbol

Chiratidzo che rheostat chinoratidza museve we diagonal unongedza kumuviri unopikisa, unomiririra inotsvedza yekubata terminal. Rheostats inoshanda semaviri-terminal variable resistors anowanzo shandiswa mumagetsi regulation application, mota kumhanya kudzora, uye dimming maseketi.

3.2.2 Potentiometer Symbol

Potentiometer zviratidzo zvinoratidza materminal matatu ane diagonal museve unonongedza pakati pekubatanidza. Iyi gadziriso inobvumira potentiometers kushanda semagetsi divider mumaseketi amplifier, magetsi ekugadzirisa magetsi, uye odhiyo vhoriyamu kudzora.

3.3 Trimmer Resistor Symbols (Trimpot)

Trimmer resistors inoratidzika seyakajairwa rectangular resistor zviratidzo ine yakawedzera diagonal slash kana muchinjiko mucherechedzo unoratidza hunhu hwavo hunogadziriswa. Aya madiki anosiyana anopikisa anogonesa kurongeka kwakaringana munzvimbo dzekugadzira.

Vagadziri vedunhu vanotsanangura ma trimmers kana masekete achida kugadziridzwa kwekutanga panguva yekugadzira asi anoramba akatsiga panguva yekushanda kwakajairika, sekuwana calibration mune instrumentation amplifiers.

4. SMD Resistor Symbols muPCB Dhizaini

Surface-Mount mudziyo (SMD) resistors anoshandisa zvakafanana resistor zviratidzo kune kuburikidza-gomba zvikamu, nemusiyano unoitika chete muPCB dhizaini mafaera uye zvinyorwa zvekugadzira.

4.1 Schematic Representation yeSMD Resistors

Standard resistor zviratidzo zvinoshanda zvakaenzana kune SMD uye kuburikidza-gomba zvikamu mumatunhu schematics. Musiyano unobuda mubhiri rezvinhu zvakatemwa uye PCB tsoka yekumisikidzwa, uko vagadziri vanotsanangura mapakeji makodhi seR_0402 kana R_0805.

Iyi kupatsanurwa inobvumira mainjiniya kuchinjana pakati pekukwira matekinoroji pasina kushandura dhizaini yedunhu, kuchengetedza dhizaini inoshanduka panguva yese yekusimudzira.

4.2 PCB Silkscreen Markings yeResistor Symbols

PCB silkscreen masikirini anoratidza mareferenzi madhizaini akadai seR1, R5, kana R23 padyo nenzvimbo dzechikamu, kubatanidza nhengo dzemuviri kune schematic resistor zviratidzo. Madhizaini ane nzvimbo anowanzosiya mavara esirikirini kune madiki resistor package.

Nyanzvi dzePCB vagadziri vanokurudzira kuchengetedza zvakaenderana dhizaini kuiswa uye kutarisisa kufambisa kuonesa gungano uye kuitazve mashandiro.

4.3 Package Size Correlation

Resistor zviratidzo zvinopa hapana chiratidzo chehukuru hwemuviri kana chimiro chekukwira. Vagadziri vanofanirwa kubvunza BOM rondedzero uye PCB tsoka inotsikirira maraibhurari kuti vaone chaiwo epakeji zvirevo.

Saizi dzeSMD resistor dzakajairika dzinosanganisira 0402, 0603, uye 0805 mapakeji ane zviratidzo zvakafanana zve resistor, zvinoda maitiro ekunyatso nyora kuti zvive nechokwadi chekuti zvikamu zvinotengwa nemazvo.

5. Special Resistor Symbols uye Mashandisirwo Avo

Specialized resistor mhando dzinoshandisa zviratidzo zvakagadziridzwa kuratidza iwo akasiyana emagetsi maitiro uye maitiro ekushanda.

5.1 Fuse Resistor Symbols

Mafuse resistors anosanganisa mwero wepikisi chiratidzo nemavara madiki "f" kana bhokisi rakavharirwa chiratidzo. Izvi zvikamu zvinopa overcurrent dziviriro nekushanda seyakajairwa resistors pasi pezvakajairwa mamiriro asi kuvhura dunhu kana ikozvino yadarika miganhu yakachengeteka.

5.2 Thermistor Symbols (NTC nePTC)

Thermistor zviratidzo zvinowedzera tembiricha coefficient zviratidzo kune yakajairwa resistor inomiririra:

• NTC thermistors - Diagonal line ine negative slope annotation inoratidza kuramba kunodzikira netembiricha
• PTC thermistors -Positive slope marking inoratidza kuramba kunowedzera nekupisa
• Applications -Kunzwa tembiricha, inrush ikozvino kudzikisira, uye kupisa kwemuripo maseketi
• Musiyano wechiratidzo - Museve kana kona yemutsara inosiyanisa zvakajeka NTC kubva kumhando dzePTC

5.3 Mifananidzo ye Photoresistor (LDR)

Chiedza chinodzikisira chinoshandisa chiratidzo chinopikisa chine miseve miviri yediagonal inonongedza mukati kune chikamu chemuviri. Iyi miseve inomiririra simba rechiedza rinouya rinogadzirisa kukosha kwekupikisa.

5.4 Precision Resistor Symbols

Precision resistors inowanzoita seyakajairwa resistor zviratidzo inoperekedzwa neyakaomesesa kushivirira maratidziro senge 0.1% kana 0.01% mune iyo kukosha chirevo. Nepo chiratidzo chekupikisa pachacho chinoramba chisina kuchinjika, chiratidzo chekushivirira chinozivisa izvi zvikamu sekuda kwakakosha kubata.

5.5 High-Simba Resistor Symbols

High-simba resistors inogona kusanganisira mamwe rectangular rondedzero mabhokisi kana simba reti zvirevo. Aya anopikisa zviratidzo anozivisa vanogadzira ayo akakosha ekutonga kwemafuta ekufunga anoshanda, kusanganisira heatsinking zvinodiwa uye yakakwana PCB nzvimbo yemhangura yekupisa kupisa.

6. Kuverenga uye Kududzira Resistor Symbols muCircuit Diagrams

Kududzira zviratidzo zve resistor kunoda kunzwisisa maitiro akawanda ekunyora ma resistance values ​​uye ma component specifications.

6.1 Resistance Value Notation

Circuit schematics inoratidza hunhu hwekuramba uchishandisa metric prefixes apo 10k inomiririra gumi, 10,000 ohms, 100R inoratidza 100 ohms, uye 1M inotsanangura 1,000,000 ohms. European notation dzimwe nguva inoshandisa R sechibatiso chenzvimbo, apo 4R7 inokwana 4.7 ohms.

6.2 Kushivirira uye Simba Rondedzero

Mayero ekushivirira anoonekwa mushure mekushomeka kwemaitiro uchishandisa muzana notation, senge 10k ± 5% kana 470Ω ±1%. Masimba ekuparadza masimba haawanzo kuoneka zvakananga pane schematic resistor zviratidzo, panzvimbo pacho anogara muchikamu hunhu kana BOM yakatarwa.

6.3 Resistor Network Symbols

Multiple resistors kugovera materminals akajairwa anoshandisa akasanganiswa zviratidzo zvinomiririra zvinoratidzira akati wandei zvinhu zvinopikisa mukati mechikamu chimwe chete. Aya maresistor arrays anoderedza bhodhi nzvimbo uye chikamu chekuverenga mumashandisirwo anoda anofananidzwa kupikisa kukosha.

7. Kazhinji Zvikanganiso Paunenge Uchishandisa Resistor Symbols

Zvikanganiso zvinoverengeka zvinodzokororwa mukushandiswa kwechiratidzo chekudzivirira zvinogadzira matambudziko panguva yekuongorora dunhu, kugadzira, uye magungano maitiro.

7.1 Kusanganisa IEC uye ANSI Symbol Standards

Kubatanidza IEC rectangular zviratidzo ne ANSI zigzag notation mukati meimwe schematic inokonzeresa nyonganiso panguva yekuongorora dhizaini. Kuchengetedza zvibvumirano zvechiratidzo zvinoramba zviripo mukati mezvinyorwa zvepurojekiti zvinodzivirira kududzira zvisizvo uye kunoderedza nguva yekudzokorora.

7.2 Kusarurama Variable Resistor Symbol Sarudzo

Kutsiva potentiometer zviratidzo zve rheostat maapplication kana zvinopesana kunovharidzira dhizaini chinangwa uye zvinogona kutungamira kune zvisiri izvo chikamu chekutenga. Iyo mitatu-terminal potentiometer configuration inosiyana kushanda kubva maviri-terminal rheostats.

7.3 Zvisina Kukwana Resistor Value Zvinotaurwa

Kusiya mayunitsi ekupikisa kana kushandisa zvinyorwa zvisina kujeka zvinogadzira kukanganisa kwegungano. Zvinodiwa zvakakosha zvinosanganisira:

• Kusarudzwa kweyuniti -Gara uchisanganisira R, k, kana M suffix kudzivirira zvikanganiso zvehukuru
• kubvumidza kumaka - Rondedzera muzana kana kushivirira zvachose kune chaiyo maapplication
• Kuyera kwesimba -Chinyorwa chinodiwa chemvura muBOM pane kupikisa zviratidzo
• Kupisa kwekushisa -Cherechedza TCR zvirevo zvetembiricha-sensitive maseketi

7.4 BOM uye Silkscreen Mismatches

Zvisingawirirani mareferenzi madhizaini pakati pedunhu schematics, PCB marongero, uye bhiri rezvinyorwa zvinyorwa zvinoomesa maitiro ekuona kwegungano. Nyanzvi PCB vagadziri vanosimbisa kuchengetedza yakawiriraniswa nhamba dzechikamu uye madhizaini etsoka pane ese einjiniya zvinyorwa.

8. Mhedziso

8.1 Kunzwisisa Basa reResistor Symbols

• Mutauro wekutanga - Zviratidzo zveResistor zvinoumba sisitimu huru yekutaurirana kwezvirongwa zvemagetsi, asi nyore kwazvo kunovanza hunhu hwakakosha hweinjiniya.

• IEC vs. ANSI - Kuvapo pamwe chete kwezviratidzo zviviri kunoratidza mafungiro akasiyana mukupa ruzivo rwekuona, kwete kungofarira nzvimbo chete.

8.2 Sei Kuturikira Kwemavara kuchikosha

• Chigadziko cheAbstraction - Zigzag imwe chete kana rectangle inogona kumiririra ma resistors ane simba guru, mana, uye tembiricha yakakwira.

• Kushanda zvakanaka uye njodzi - Kupfupisa uku kunokurumidza magwaro asi kunowedzera mukana wekutsanangurwa zvisizvo kana zvirevo zvisina kuongororwa.

8.3 Specialized Resistor Symbols

• Variable resistors - Arrow annotations inoratidza maitiro ekushanda anokanganisa circuit topology, zvichisiyanisa two-terminal rheostats kubva kune three-terminal potentiometers.

• Zvikamu zvinoshanda - Zviratidzo zve thermistors, photoresistor, uye precision resistors zvinonyora hunhu hwemagetsi nekupisa hunotungamira sarudzo yezvikamu uye maitiro ekuronga.

8.4 Kuona Kuvimbika Kwekugadzira

• Kurongeka kweSchematic-BOM-footprint - Kuvimbika kunoenderana nekuenderana kwakasimba pakati pezviratidzo zveschematic, zvinyorwa zveBOM, uye footprint dzePCB mumatanho ese ekudzokorora.

• Rutsigiro rweDFM - Pamagadzirirwo anoda kusimbiswa kwekugadzirwa, Highleap Electronics inopa nhungamiro yeinjiniya mukati memaitiro ekugadzira PCB.