Aj almost har company apne phones mein wireless charging ka option de rahi hai. Wireless chargers phone ko charge krne ke liye teen type ki technologies ka use krta hai, electromagnetic inductive charging, resonant inductive charging, aur radio frequency charging. Wireless charging technology ko hum Qi technology bhi kehte hai. Sabse phele electromagnetic inductive charging ke baare mein samjh lete hai. Aj kl, electromagnetic inductive charging sabse zada use hone wali wireless charging technology hai. Humare smartphones, smartwatches, wireless earbuds, aur market mein available wireless chargers mein yahi technology kaam krti hai.
Wireless chargers ek electromagnetic induction ke priciple pe kaam krti hai. Jab wireless charger mein ek electric current transmitter coil se guzarta hai, toh ye ek electromagnetic field create karta hai. Iss field ko device mein laga receiver coil receive krke current induce karta hai. Jisse power wirelessly transfer hoti hai.
Electromagnetic inductive charging tabhi kaam krti hai, jab device charger ke bhot kareeb ho, ya phir direct contact mein ho. Tabhi hume devices ko wireless chargers ke upar rakh ke charge krna padta hai.
Ab baat krte hai, resonant inductive charging ki. Resonant inductive charging 2 coils ki madad se chalti hai. Ek coil apke device mein hoti hai aur dusri charger ke adar hoti hai. Inn dono hi coils ke same frequency pe kaam krne ke liye tune kara hota hai. Charger mein jese hi current flow hota hai vo, usko seedha coils mein bhej ke frequency mein covert kr deta hai, aur apke phone mein laga receiver usse receive krke phone ko charge krta hai.
Ye wireless chargers devices mein kam hi use hote hai kyuki inka price baaki charger se zada hota hai.
Last mein ata hai, radio frequency charger
Radio frequency charging ka istemal radio waves ke zariye electric energy ko device tak pohochane ke liye hota hai. Jab charger ko kisi power source se connect krte hai, toh ye electric current ko radio waves mein convert kr deta hai.
Phir inn waves ko device mein laga antenna receive krke wapis electric current mein convert kr deta hai, aur device ko charge krta hai. Radio frequency charging zada duri se bhi kaam kr leti hai. Aur ye wali charging kam powered devices jese wireless keyboards.
History of chargers
Mobile chargers pehle mostly simple regulated power supplies hote the jo mains voltage (110 ya 230 V AC, aapke location ke hisaab se) ko DC supply mein convert karte the, jo low voltage pe hoti thi; aaj kal mostly 5 volts hoti hai, taaki phones USB port se bhi charge ho sakein aur charger se bhi.
Pehle mobile phone chargers kaafi heavy aur bulky hote the, jo transformer use karte the, aur uske baad regulation linear circuit ke zariye hoti thi, jismein excess power heat ke roop mein dissipate hoti thi. Aaj kal switch-mode circuits use kiye jaate hain, jo heavy transformer ko khatam kar dete hain aur high frequency switching se voltage regulate karte hain, jiski wajah se chargers light aur zyada efficient ho gaye hain. Switch-mode power supplies ab itne common hain ki ye bahut saste bhi ho gaye hain (jo ki 90s ke dauran nahi tha).
Charging ki clever circuitry actually phone ke andar hoti hai (ya PC, tablet, etc ke andar). Phone ko internal battery ko safely charge karna hota hai, isliye current, voltage aur temperature ko monitor karna padta hai charging ke dauran. Modern rechargeable batteries ko constant current pe charge karna padta hai, isliye current control phone ke andar hota hai, aur wahan sensors bhi hote hain current, voltage aur temperature ke liye. Agar aap mobile charger ko directly phone battery se connect karenge, to battery overheat ho sakti hai aur damage ho sakti hai, aur shayad fire ya explosion bhi ho sakta hai.
Simple si baat yeh hai ki mobile phone charger ka invention ek single entity ka nahi hai, kyunki regulated power supplies ka concept purana hai, aur rechargeable batteries ko charge karne ke liye jo circuitry hoti hai, wo kaafi established hai aur sirf mobile phones hi nahi, har tarah ke equipment mein apply hoti hai.
Aaj kal naye smart chargers aa rahe hain jo phone (ya kisi aur equipment) se communicate karte hain aur voltage switch kar sakte hain, jo equipment ke requirements ke hisaab se adapt hota hai. Isse charging process zyada fast ho jati hai. In technologies ke inventions ka list kaafi lamba hai, aur kai companies apne patents aur licenses se paise kamane ki koshish kar rahi hain.
Also read: