Electronics Handbook/Components/Transformers

Transformer

Transformer is an electromagnetic component consists of two coils wrap around a square magnetic material that has the capability of Step up, Step down and Buffer the voltage

Characteristic

V_{S}=V_{P}{\frac {N_{S}}{N_{P}}}

Step Up Voltage when ${\frac {N_{S}}{N_{P}}}>1$
Step Down Voltage when ${\frac {N_{S}}{N_{P}}}<1$
Buffer Voltage when ${\frac {N_{S}}{N_{P}}}=1$

Summary

Component	Transformer
Symbol
Construction
${\frac {V_{o}}{V_{i}}}$	${\frac {V_{o}}{V_{i}}}={\frac {N_{2}}{N_{1}}}$
Function	Step Up $V_{o}>V_{i},N_{2}>N_{1}$ Step Down $V_{o}<V_{i},N_{2}<N_{1}$ Buffer $V_{o}=V_{i},N_{2}=N_{1}$

Reference

Transformer

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