Industrial electronics
Would you rather
High or Low Switching Frequency?
Would you rather switch your converter at 20 kHz or 500 kHz?
Quick check · tap an answer to continue
Lesson notes
Key points
- Higher frequency means smaller ripple per cycle, so you can use a smaller inductor and capacitor, shrinking the whole converter.
- But switching loss rises with frequency, so high-power IGBT drives stay low while compact MOSFET supplies go high; power level decides it.
Takeaway: Frequency trades component size against switching loss.
Quick check: Would you rather switch a converter at 20 kHz or 500 kHz?
- 20 kHz
- 500 kHz
- Depends on the case
Size gains versus switching loss: power level and device type decide.
Smaller magneticsPower level decides
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