S1E2 Chatshaala with electronics gadgets | Exploring mobile charger - II

E2: Notes 05 June 2020 (Charger)

Basics of transistor

  • Emitter
  • Base
  • collector
  • functioning
  • Amplication

Charger

  • Input block
  • processing block
  • output block
  • feedback loop/control unit

Transformer

  • Fe powder core

  • inductance principle

  • magnetic flux

  • design to avoid leakage

  • pot core

  • primary/secondary coils

  • Transformer core

  • Safety aspect of Optocoupler

Np/Ns=Vp/Vs
step up / step down / isolation transformer types
P=I2R=V2/R

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