Switch mode transformers

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  • Created by: Lina
  • Created on: 09-04-14 06:43
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  • Switch Mode Transformers
    • Reduce the p.d. of the a.c. mains supply+ convert it to direct current
      • Have a step-down transformer
    • Operate at high frequencies
      • 50kHz- 200kHz
    • Need a supply with much lower than the 230V of the mains el. supply
    • Smaller+ lighter
    • Efficient
    • Use very little power when switched on, but no load is applied
    • Can be used with different main supplies and still produce the same output

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