A voltage divider inokubatsira kutyora voltage imwe kuita zvidimbu zvidiki zvine resistors. Iwe unogona kushandisa voltage divider maseketi kuti uwane akasiyana voltages kubva kune imwe simba sosi. Funga nezvezvipikisi zviviri zvakabatanidzwa mumutsara. Kana iwe ukatarisa voltage pane imwe resistor, iwe unongowana chikamu cheiyo voltage yese. Uku kuseta kuri nyore kunoita kuti iwe upe simba kune masensa kana mamwe magetsi anoda yakaderera voltage.
Voltage Divider Circuits
tsananguro
Macircuit ekuparadzanisa magetsi anobatsira kupatsanura magetsi kuita zvidimbu zvidiki. Macircuit aya anoshandisa ma resistors kugadzira ma voltage akasiyana kubva kusimba rimwe chete. Unobatanidza ma resistors mumutsara kuti ugadzire circuit. Voltage inodonha pa resistor yega yega. Unogona kutarisa voltage panzvimbo dzakasiyana mu circuit. Nenzira iyi, unowana voltage inodiwa kuma sensors kana mamwe magetsi.
Basa Rokutanga
Macircuit ekuparadzanisa magetsi anogovana voltage yese pakati pema resistors. Unoisa ma resistors mumutsetse, kana series. Voltage inopatsanurwa zvichienderana nekukosha kwe resistor yega yega. Kuti uwane voltage yakaderera, yera resistor imwe chete. Unogona kushandura voltage inobuda nekusarudza ma resistor akasiyana. Izvi zvinoita kuti macircuit ekuparadzanisa magetsi abatsire kumapurojekiti mazhinji emagetsi.
Zano: Voltage divider maseketi anogona kugonesa zvinhu zvinoda shoma voltage pane yako huru simba.
Muenzaniso Wakareruka
Heino muenzaniso uri nyore. Iwe une bhatiri rinopa 9 volts. Iwe unongoda 3 volts ye sensor. Iwe unogona kushandisa maviri resistors kugadzira voltage divider circuit. Kana zvese zvinopikisa zvakafanana, voltage inotsemuka zvakaenzana. Imwe neimwe resistor inowana 4.5 volts. Kana imwe resistor yakakura, inowana yakawanda voltage.
Heino dhayagiramu iri nyore:
[Battery]---[R1]---[R2]---[Ground]
| |
Vout 0V
R1 neR2 ese ari maviri anopikisa.
Vout ndiyo voltage yaunotarisa paR2.
Magetsi ebhatiri anotsemuka pakati peR1 neR2.
Unogona kushandisa dunhu iri kuti uwane voltage yaunoda. Edza kushandisa akasiyana resistor values kuti uone kuti voltage inoshanduka sei. Voltage divider maseketi anokuita kuti udzore voltage mumapurojekiti ako.
Voltage Drop uye Calculation
Mutemo waOmm
Iwe unogona kushandisa mutemo we ohm kuti unzwisise kuti kudonha kwevoltage kunoitika sei mune voltage divider circuit. Mutemo waOhm unoti voltage yakaenzana neazvino nguva kuramba. Kana iwe uine resistor mudunhu, iyo voltage inodonha pairi inoenderana neyazvino uye inopikisa kukosha. Iwe unogona kunyora equation seizvi:
V = I × R
Kana uchiziva voltage yekupinda uye resistor values , unogona kuwana current. Current inoramba yakafanana kuburikidza ne resistor yega yega mu series circuit. Unogona kushandisa ohm's law kuti uwane voltage drop ratios ye resistor yega yega.
Ongorora: Mutemo waOhm unokubatsira kufanotaura kuti ingani voltage yega yega resistor ichawana mune yako voltage divider.
Mutemo waKirchoff
Kirchoff's voltage mutemo unokubatsira kuona kuti voltage inotsemuka sei mudunhu. Mutemo uyu unoti iyo voltage yakazara yakatenderedza loop yakavharwa yakaenzana ne zero. Kana iwe ukawedzera madonhwe ese emagetsi munhevedzano wedunhu, anoenzana nevoltage yekupinza. Iwe unogona kushandisa kirchoff's voltage mutemo kutarisa basa rako kana iwe uchivaka voltage divider.
Semuyenzaniso, kana uine maviri anopikisa museketi uye nevoltage yekupinza, huwandu hwevoltage inodonha pane imwe neimwe resistor inoenzana nevoltage yekupinza. Izvi zvinokubatsira kuti uve nechokwadi chekuti voltage divider equations yako ndeyechokwadi.
Key Equations
Iwe unofanirwa kushandisa iyo equation chaiyo kuti uwane inobuda voltage mune voltage divider. Iyo yakakosha equation yeiyo yakapfava maviri-resistor voltage divider inoita seizvi:
Vout = Vin × (R2 / (R1 + R2))
Vin ndiyo voltage yekupinda.
Vout ndiyo inobuda voltage.
R1 ndiyo yekutanga resistor.
R2 ndiyo yechipiri resistor.
Iyi equation inoratidza kuti voltage drop ratios inotsamira sei pa resistor values. Unogona kushandura output nekusarudza resistor dzakasiyana. Kana uchida kuwana current mucircuit, shandisa iyi equation:
I = Vin / (R1 + R2)
Iwe unogona kushandisa aya equation kugadzira yako wega voltage divider circuit.
chiratidzo | zvichireva |
|---|---|
waini | chiyamuro voltage |
Mhere | Output voltage |
R1 | First resistor |
R2 | Rechipiri resistor |
I | zvemazuvano |
Sample Calculation
Ngatiedzei dambudziko remuenzaniso. Iwe unoda kuwana inobuda voltage ye 3 volts kubva pakupinza voltage ye5 volts. Iwe unoshandisa maviri resistors mudunhu rako. R1 i2 kΩ. R2 i3 kΩ.
Nyora voltage divider equation:
Vout = Vin × (R2 / (R1 + R2))Batanidza ma values:
Vout = 5 × (3 / (2 + 3)) Vout = 5 × (3 / 5) Vout = 5 × 0.6 Vout = 3 volts
Iwe unowana inobuda voltage ye3 volts. Voltage drop reshiyo dzeR1 neR2 i2:3. Iyo voltage inodonha paR1 ndeye 2 volts. Iyo voltage inodonha paR2 ndeye 3 volts. Kudonha kwevoltage yese kwakaenzana nevoltage yekupinza.
Iwe unogona zvakare kuwana ikozvino mudunhu:
I = Vin / (R1 + R2)
I = 5 / (2 + 3)
I = 5 / 5
I = 1 mA
Zano: Gara uchitarisa kuti huwandu hwevoltage inodonha pane imwe neimwe resistor yakaenzana nemagetsi ekuisa. Izvi zvinoita kuti dunhu rako rive rakachengeteka uye richishanda.
Iwe unogona kushandisa aya equation kugadzira voltage divider maseketi emasensa, maLED, kana zvimwe zvemagetsi. Edza kuchinja resistor values kuti uone kuti inobuda voltage inochinja sei. Iwe uchaona kuti voltage kudonha ratios inokanganisa sei kubuda.
Kushanda Kushandiswa Kwemagetsi Divider
10% Rule
Paunoshanda nemasekete evoltage divider, unofanirwa kufunga nezvemutemo we10%. Mutemo uyu unokubatsira kuona kuti dhizaini yedunhu rako inokupa voltage yaunoda. Mutemo we10% unoti mutoro wakabatana nevoltage divider yako unofanirwa kudhonza pasi pe10% yemagetsi anoyerera nemudivider. Kana ukatevera mutemo uyu, unochengetedza voltage inobuda yakadzikama. Unodzivisa shanduko huru muvoltage paunobatanidza mudziyo.
Zano: Gara uchitarisa chiyero chazvino pakati pemutoro wako nemuparadzi. Izvi zvinoita kuti voltage yako irambe iri chokwadi.
Load Effects
Kuisa zvinhu pamotokari kunoitika kana ukabatanidza mudziyo kune voltage divider yako. Mudziyo uyu unoshanda seimwe resistor mucircuit. Iyi resistor yekuwedzera inochinja total resistance uye voltage ratio. Kana mutoro ukatora current yakawandisa, output voltage inodzikira. Unoona dambudziko iri mumapurojekiti mazhinji ekugadzira circuit. Kuti udzivise kuisa zvinhu pamotokari, unofanirwa kusarudza resistor values dzinochengetedza voltage iri pedyo nechinangwa chako.
Heino tafura yekukurumidza kuratidza kuti kurodha mhedzisiro inoshandura sei zvinobuda:
Mutoro Kuramba | Output Voltage | Ratio Shanduko |
|---|---|---|
High | Anoramba akatsiga | diki |
Low | madonhwe | guru |
Design Muenzaniso
Ngatitarisei muenzaniso wekugadzira unoshandisa mutemo we10%. Iwe unoda kuwana 5 volts kubva kune gumi nemaviri-volt sosi ye sensor. Sensor yako inoda 12 mA. Iwe unotanga dhizaini yako yedunhu nekutora ikozvino kune divider. Kana iwe uchida kuti kupatsanura ikozvino kuve inosvika gumi mA, chiyero chemutoro wezvino kune divider ikozvino 1:10. Iwe unoshandisa voltage divider equation kuwana resistor values. Iwe unotarisa voltage ne sensor yako yakabatana. Kana iyo voltage ikaramba iri pedyo ne1 volts, dhizaini yako inoshanda. Kana zvisiri, iwe unogadzirisa maitiro ekupikisa uye dzokorora maitiro.
Rangarira: Yakanaka dhizaini dhizaini inogara ichitarisa kurodha mhedzisiro uye inoshandisa iyo chaiyo reshiyo kune yakagadzikana voltage.
Unoona mashandisirwo anoshanda emagetsi anoparadzanisa magetsi mumaseru emagetsi, maaudio controls, uye microcontroller inputs. Kana ukatevedzera mutemo we10%, unoita kuti magetsi ako anoparadzanisa magetsi ave akavimbika. Unoshandisa chiyero chakakodzera uye matanho ekugadzira kuti magetsi ako arambe akadzikama mumapurojekiti chaiwo.
Intricacies yeVoltage Divider Circuits
Voltage Ladder
Iwe unogona kuvaka manera emagetsi nekubatanidza maresitorendi akati wandei mumutsara. Chimiro ichi chinotaridzika semitsara yemanera. Imwe neimwe resistor inoshanda senhanho. Iwe unobatanidza imwe mugumo wemanera kune voltage sosi uye imwe mugumo pasi. Iyo voltage inodonha zvishoma pane imwe neimwe nhanho. Iyi setup inokubatsira kuti uwane akawanda akasiyana voltage mazinga kubva kune imwe sosi.
Manera emagetsi anokupa mavoltage anopfuura maviri chete. Unogona kubata circuit pane imwe neimwe node iri pakati pema resistors. Tap yega yega inokupa voltage yakasiyana. Izvi zvinoita kuti mavoltage ladder ashande mumapurojekiti akawanda. Unowanzoona izvi muma converters e analog-to-digital kana masensa . Kugadzikana kwedanho rega rega remagetsi kunoenderana ne resistor values dzaunosarudza.
Zano: Shandisa zvakaenzana-value resistors kune kunyange voltage nhanho mumanera ako.
Node Calculation
Iwe unogona kuwana iyo voltage pane imwe neimwe node mune voltage ladder uchishandisa nyore math. Tanga nekuverenga huwandu hwese hwevanopikisa. Kana iwe ukashandisa yakaenzana-value resistors, iyo voltage inodonha zvakaenzana pane imwe neimwe node. Semuenzaniso, kana uine mana resistors uye 12-volt sosi, nhanho imwe neimwe inodonha 3 volts.
Heino nzira yekukurumidza kuverenga node voltages:
Verenga huwandu hwese hwezvipikisi (N).
Govanisa huwandu hwemagetsi neN kuti uwane kudonha kwevoltage pane resistor.
Wedzera kudonha nenhamba yematanho kubva pasi kuenda kune yako node.
Heino tafura yematanho mana ane 12-volt sosi:
Node | Voltage (V) |
|---|---|
0 | 0 |
1 | 3 |
2 | 6 |
3 | 9 |
4 | 12 |
Unogona kushandisa nzira iyi kune chero ma voltage ladder. Izvi zvinokubatsira kugadzira ma circuits ane voltage levels dzakagadzikana pa node yega yega. Kuomarara kwema voltage divider circuits kunoonekwa kana ukaona kuti danho rega rega rinokanganisa sei kugadzikana uye kubuda kwe circuit yako.
Iwe wakadzidza kuti voltage divider maseketi anoita sei akasiyana voltages. Iwe zvakare wakadzidza kushandisa masvomhu kuwana voltage uye ikozvino. Kutora iyo chaiyo resistor kukosha kunobatsira kuchengetedza voltage. Izvi zvinoita kuti dunhu rako rishande zvakanaka. Edza kugadzira yako wega voltage divider kana voltage ladder.
Shandisa akasiyana resistor values kuti uone zvinoitika.
Tarisa voltage panzvimbo yega yega yedunhu rako.
Kana iwe uchida kudzidza zvakawanda, edza online dunhu simulators kana maoko-pane kits.
FAQ
Chii chinonzi voltage divider uye nei uchiishandisa?
Chinoparadzanisa magetsi chinopatsanura magetsi kuita zvikamu zvidiki. Unochishandisa kupa simba zvinhu zvinoda magetsi mashoma . Chinokubatsira kugadzira magetsi akasiyana-siyana emasensa kana ma microcontroller.
Iwe unosarudza sei resistor kukosha kune voltage divider?
Sarudza resistor values kuti uwane voltage yaunoda. Shandisa voltage divider equation kuti ikubatsire. Edza akasiyana resistor pairs kusvika wawana voltage chaiyo. Nenzira iyi, unogona kuseta voltage yeprojekiti yako.
Ko voltage divider simba rinorema mitoro?
Usashandise voltage divider pamitoro inorema. Iyo inobuda voltage inodonha kana mutoro ukashandisa yakawandisa ikozvino. Nguva dzose chengetedza mutoro uye tevera mutemo we10%. Izvi zvinoita kuti voltage divider yako irambe ichishanda nemazvo.
Sei chinobuda chichichinja kana ukabatanidza mudziyo kune voltage divider?
Kubatanidza mudziyo kunowedzera imwe resistor kudunhu. Izvi zvinoshandura kupikisa kwese uye kubuda kwemagetsi. Voltage inodonha ratios inokubatsira kufungidzira zvichaitika nemitoro yakasiyana.
Unoonepi voltage divider maseketi muhupenyu chaihwo?
Unoona ma voltage divider circuits muma sensor circuits uye audio controls. Anowanikwawo muma microcontroller inputs. Ma circuits aya anokubatsira kuwana voltage yakakodzera chikamu chimwe nechimwe. Unoshandisa voltage dividers mumapurojekiti akawanda emagetsi.
