Rectifier Smoothing Capacitor Calculator
Estimate capacitance for a specified load current and allowable peak-to-peak ripple.
A QUICK WALKTHROUGH
How to use this tool
- Enter values in the displayed SI units.
- Review the assumptions and formula.
- Calculate locally; verify all design values independently.
Formula and limits
C≈Iload/(fripple·ΔV). The rectifier pulse frequency is supplied directly; ESR and conduction effects are excluded. This is a simplified estimate and does not validate component ratings, safety, or process quality.
Privacy
Inputs are calculated locally and are not uploaded.
GOOD TO KNOW
Common questions
Does this validate a design or casting process?
No. It evaluates the stated model only.