Electronics Handbook/Components/Transformers

From Wikibooks, open books for an open world
Jump to: navigation, search

Transformer[edit]

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

Transformers.jpg
Single-phase transformer.svg

Characteristic[edit]

Transformer under load.svg
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[edit]

Component Transformer
Symbol
Construction Single-phase transformer.svg
\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 DownV_o < V_i , N_2 < N_1
Buffer V_o = V_i , N_2 = N_1

Reference[edit]