12v to 4.7v //

Описание: Jab hum do resistors ka istemal karke voltage ko kam karte hain, toh ise Voltage Divider Circuit kaha jata hai. Ye tarika tab sabse accha hota hai jab aapko sirf ek signal voltage chahiye ho (jaise kisi sensor ya microcontroller ke liye), lekin ye heavy load (jaise motor ya LED) chalane ke liye sahi nahi hai.
Niche iska pura description diya gaya hai:
1. Voltage Divider Kaise Kaam Karta Hai?
Is circuit mein do resistors (R_1 aur R_2) ko series mein lagaya jata hai. 12V input ko in dono ke series connection par diya jata hai, aur 4.7V ka output dono resistors ke beech ke point se liya jata hai.
Formula (Sutra):
Output voltage nikalne ke liye ye formula use hota hai:

Yahan:
V_{in} = 12V
V_{out} = 4.7V
R_1 = Pehla resistor (Positive side)
R_2 = Dusra resistor (Ground side)
2. 4.7V Ke Liye Resistors Ki Value
Agar humein 12V se 4.7V chahiye, toh humein resistors ka ratio sahi rakhna hoga.
Ek Example Calculation:
Agar aap R_1 = 1.5k\Omega aur R_2 = 1k\Omega ka istemal karte hain:


Ye 4.7V ke bahut kareeb hai aur kaam kar jayega.
3. Resistor Method Ke Fayde aur Nuksan
| Feature | Description |
|---|---|
| Sasta (Low Cost) | Ye sabse sasta tarika hai, sirf do resistors chahiye. |
| Size | Bahut kam jagah gherta hai. |
| Voltage Drop | Jaise hi aap isse koi device connect karenge (Load), output voltage 4.7V se niche gir jayega. |
| Efficiency | Bahut kharab. Resistors garmi (heat) paida karte hain aur power waste karte hain. |
4. Sabse Zaroori Warning!
Resistor divider ka istemal kabhi bhi Power Supply ki tarah na karein.
Kahan Use Karein: Sirf signal dene ke liye (jaise 12V ki battery ka level Arduino se check karna ho).
Kahan Use Na Karein: Kisi bhi aisi cheez ko chalane ke liye jo current khichti hai (jaise Fan, Bulb, ya Charging circuit). Iske liye aapko pichle bataye gaye Buck Converter ka hi istemal karna chahiye.
Aapka Agla Kadam:
Kya aap ye bata sakte hain ki aap is 4.7V se kya chalana chahte hain? Main aapko bata paunga ki resistor divider wahan kaam karega ya aapko kisi aur circuit ki zaroorat hai.