Description
power = rippleRms²*esr.
Electrical dissipation and temperature coefficients depend on operating conditions and component reference values. A calculated loss, local temperature factor or supplied-rating margin is only part of a thermal and reliability assessment.
power = rippleRms²*esr.
When to use this tool
Use Capacitor Ripple Current Heating Term when checking one supplied loss, temperature or power-margin term.
How to use the tool and how it works
- Enter rippleRms, esr. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read power. Use the output convention below.
Require nonnegative rippleRms and esr. power = rippleRms²*esr.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| rippleRms | Ripple Rms | Required. Finite number; minimum 0. |
| esr | Esr | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| power | Power | Required. Finite number. |
{
"input": {
"rippleRms": 2,
"esr": 0.05
},
"output": {
"power": 0.2
}
}Limitations and assumptions
- Use RMS amperes and ohms for watts. ESR must be appropriate to the ripple conditions; frequency dependence, temperature rise and safe ripple-current limits are not determined.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use manufacturer ratings, thermal paths, derating and transient conditions for a complete practical design.
References
Similar or alternative tools
- Resistor Self Heating Power Coefficient
fractionalResistancePerPower = thermalResistance*temperatureCoefficient; resistancePerPower additionally multiplies reference resistance.
- Conductance Temperature Relative Change
Return new conductance = original/factor and relativeChange = new/original-1.