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Principle circuit diagrams of switch mode power suppliesThis page in German

Datasheet as PDF

Principle circuit diagram

Advantages

Disadvantages

Prinzipschaltungen von Schaltnetzteilen als PDF

a)

  • Simple structure and low cost
  • Only one inductive component
  • Several secondary voltages
  • Easy to adjust

a)

  • Larget transformer with air gap necessary
  • High eddy current losses at the area of the air gap
  • High efforts for interference suppression

b)

  • Simple trigger electronics

b)

  • Two inductive components necessary
  • Large choke at secondary
  • Several secondary voltages only with a lot of effort to adjust
  • Medium effort for interference suppression

c)

  • Only a small choke necessary
  • Just a bit of effort for interference suppression

c)

  • Two inductive components needed
  • Complex windings

 

 

Source: Prof. Kilgenstein

Circuits