Mawdaw relay gaw mawdaw circuit ni hta n mai malap ai ahkyak ai daw langai mi rai nga ai. Shi a madung bungli gaw, n-gun kaba hpe n-gun kaji hte hkang lu ai, automatic circuit galai shai ai lam hte makawp maga lam hpe lu la na matu re. Grau nna, shang wa ai n-gun (voltage, current, nbung katsi ai zawn re ai ni) gaw, tau hkrau masat da ai threshold de du wa ai shaloi, relay a kata na electromagnetic system gaw, contact ni hpe hpaw na matu (sh) hpaw na matu shadut ya nna, dai hku nna, main circuit a on/off masa hpe hkang lu ai. Ndai arawn alai gaw mawdaw electronic system ni hta bungli law law hpe galaw lu shangun ai:
Circuit Control hte Switching: Mawdaw relay ni hpe engine hpe hkang ai (ECU), nhtoi htoi ai jak ni, nbung laru hpe kashin ai jak ni, nbung hpe katsi shangun ai jak ni hte kaga mabyin masa ni hta grai lang ma ai. Ga shadawn, mawdaw gau ai wa gaw high beam ni hpe hpaw dat ai shaloi, relay gaw switch kaw na n-gun kya ai wan signal hpe hkam la nna, kata na wan n-gun coil hpe n-gun jaw ai majaw, contact ni hpe pat kau ya ai majaw, headlight circuit hpe matut nna wan n-gun hpe hpaw dat ai. Ndai "kaji-scale hpe kaba -scale hpe hkang lu ai" hkrang gaw, switch hku nna direct hku lai wa ai current kaba hpe koi ya ai majaw, jak a asak hpe galu shangun ai.
Overload hpe makawp maga ai hte shim lum ai hku garan ginhka ai: Motor hpe hpaw hpang ai (sh) short circuit hkrat sum ai shaloi, relay gaw circuit hpe lawan ladan dawm kau ai hku nna, jak ni hpe hkra machyi hkra makawp maga ya lu ai. Ga shadawn, starter relay gaw engine hpaw ngut ai hpang shi hkum shi daw mat ai majaw, aten galu bungli galaw ai majaw starter motor grai n katsi mat ai. Dai aten hta, relay ni gaw, n-gun n law ai -voltage hkang ai circuit ni kaw na, n-gun kaba ai -voltage hpe garan tawn da nna, bungli galaw ai wa a shim lum lam hpe hkam la lu ai.
Logic bungli galaw ai lam hte signal hpe jat ya ai: Ya aten na mawdaw ni hta Electronic Control Unit (ECU) law law lang nna, relay ni gaw masa law law hpe hkang lu ai. Ga shadawn, airbag system ni hta, mawdaw gap hkat ai lam hpe chye ai signal hte mawdaw a lawan ai signal ni hpe kalang ta mu lu ra ai; relays ni gaw, airbag hpe hpaw na kun ngu ai hpe dawdan na matu, combinational logic hpe lang nna, makawp maga ai jak gaw masa langai ngai hta sha bungli galaw lu hkra galaw ai.
Multi-Signal garan gachyan ai lam: Hkum hkrang hpe hkang ai Module (BCM) hta, relay langai sha gaw, n-gun law law hpe hkang lu ai. Ga shadawn, relay langai sha gaw, kata na laika hti ai pyengdin ni, chyinghka pyengdin ni, mawdaw kata na pyengdin ni hpe kalang ta hkang lu ai majaw, wiring layout hpe asan sha galaw lu nna, hkrat sum ai lam ni hpe mung shayawm ya lu ai.
