Kev Siv Cov Hluav Taws Xob Hluav Taws Xob Chaw Sib Pauv - Tshooj 1 Kev cuam tshuam rau cov tsheb nrog sib tshooj hluav taws xob tsis haum
North American cov tsheb lag luam muaj cov tshuab hluav taws xob tsis zoo li cov teb chaws Europe thiab NATO cov tub rog. Tshwj xeeb, lawv ua haujlwm ntawm qhov sib txawv voltages thiab siv cov khoom sib txawv. Raws li cov piv txwv ntawm kev sib txuas lus, North American cov tsheb lag luam siv 7 tus pin SAE 560 system thiab NATO tsheb siv 12 tus pin system ua raws li tus qauv STANAG 4007. European configuration zoo ib yam li North American 12V raws li SAE 560 system tshwj tsis yog tias lawv yog 24V raws thiab siv ib leeg ISO 1185 connector los yog ib tug ua ke nrog ib tug ISO 3731 connector. Ntxiv rau cov tsheb sib txuas los ntawm peb txoj cai lij choj, thaum lub tsheb xaim mus rau RV cov qauv ua tau, mating thiab interfacing possibilities yog ntxiv multiplied. Tsuas yog hluav taws xob trailer cuam tshuam ua rau muaj hluav taws xob sib txuas ntawm ob lub tsheb xaim nrog cov qauv tsis sib xws.
Txog niaj hnub no, tsheb-trailer interfacing tau ua tiav nrog ib qho ntawm peb feem ntau siv hluav taws xob circuits. Cov no yog: hluav taws xob resistor voltage dividers, centralized fais fab hloov regulators thiab faib switching regulators. Qhov peb-ntu blog series no yuav piav qhia txog cov kev teeb tsa hauv Circuit Court, hais txog qhov zoo thiab qhov tsis zoo ntawm txhua txoj hauv kev hauv cov ntsiab lus ntawm daim ntawv thov hluav taws xob trailer interface.
Muaj nuj nqi ntawm Trailer Hluav Taws Xob Interfaces
Hluav taws xob trailer interfaces muaj ob txoj haujlwm. Thawj yog los xyuas kom meej tias lub teeb liab ntawm txhua tus pin sib xyaw ua ke ntawm lub tsheb laij teb raug muab txhais ua qhov sib npaug ntawm cov teeb liab ua haujlwm ntawm tus pins ntawm lub trailer txuas. Qhov thib ob yog los hloov cov theem voltage ntawm lub hwj chim teeb liab los yog kev sib txuas ntawm cov teeb liab ntawm lub tsheb laij teb tso zis connector mus rau lub zog hluav taws xob teeb liab ntawm qhov tau txais qhov hluav taws xob ntawm tus pin npaj ntawm trailer connector.
Fais fab Resistor Voltage Dividers: Lawv ua haujlwm li cas
Fais fab resistor voltage dividers ua hauj lwm los ntawm kev xa hluav taws xob los ntawm cov hluav taws xob ruaj khov. Txoj kev no muaj peb qhov zoo tshaj plaws piv rau lwm qhov hluav taws xob trailer interfaces. Tshwj xeeb, nws yog qhov tsawg tshaj plaws, nws muaj ib qho yooj yim Circuit Court nrog cov khoom siv qis, thiab yog tias cov zis ntawm ib tus pin yuav tsum tsis ua haujlwm, lwm tus yuav tsis cuam tshuam.
Ntawm qhov tod tes, lub zog hluav taws xob faib hluav taws xob muaj rau qhov tsis zoo: Ua ntej, txoj hauv kev no yog 50% ua haujlwm zoo tshaj plaws: Rau txhua watt ntawm lub zog hloov pauv, tsawg kawg ib watt yog dissipated li cua sov. Raws li lub hauv paus rau lub zog dissipated, lub tsheb laij teb lub tshuab hluav taws xob yuav tsum muaj peev xwm muab lub zog no. Qhov thib ob, lub tsev kom muaj lub zog resistors yuav tsum muaj qhov ntim loj txaus los ua kom cov khoom siv sab hauv kom nyob twj ywm hauv lawv cov kev txwv kub. Thib peb, lub zog resistors ntawm lub siab dissipation muaj peev xwm kuj loj thiab tsis tiv thaiv kev poob siab thiab kev co, nrog rau cov khoom me me. Vim lawv qhov kub-spot kub, lawv yog inherently unreliable. Thib plaub, vim hais tias qhov hluav taws xob poob thoob plaws lub resistor nyob ntawm qhov load tam sim no, txoj kev no muaj kev tswj tsis zoo thiab tuaj yeem ua rau cov khoom ua tsis tiav. Thib tsib, kev tswj tsis zoo ntawm cov hluav taws xob tsis zoo txwv cov naj npawb thiab cov yam ntxwv ntawm cov khoom siv uas tuaj yeem thauj khoom ntawm tus pin auxiliary. Thib rau, txoj kev no tsis tuaj yeem siv rau kev nce qib voltage, xws li nyob rau hauv rooj plaub ntawm 12V towing tsheb thiab 24V trailer.