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Home/Electricity & Magnetism/DC–DC Buck / Boost

DC–DC Buck / Boost

This interactive simulator explores DC–DC Buck / Boost in Electricity & Magnetism. Ideal CCM averages: buck V_out ≈ D·V_in, boost V_out ≈ V_in/(1−D); schematic + ripple cartoon. Use the controls to change the scenario; watch the visualization and any graphs or readouts to connect the model with lectures, labs, and homework.

Who it's for: Best once you already know the basic definitions and want to build intuition. Typical context: Electricity & Magnetism.

Key terms

  • buck
  • boost
  • dcdc buck boost
  • electricity
  • magnetism

Topology

12 V
0.42

Measured values

Vₒᵤₜ (ideal CCM)5.04V
Vₒᵤₜ/Vᵢₙ0.420

How it works

Ideal continuous-conduction average models: buck Vₒᵤₜ ≈ D·Vᵢₙ, boost Vₒᵤₜ ≈ Vᵢₙ/(1−D). Real converters add switch drops, inductor resistance, and discontinuous conduction at light load.

Key equations

Buck: Vₒᵤₜ/Vᵢₙ = D

Boost: Vₒᵤₜ/Vᵢₙ = 1/(1−D)