Optocoupler Isolation Voltage Calculator

Audit actual optocoupler working voltage separately from supplied isolation-test voltage/duration and caller condition evidence; passing hypot data does not authorize continuous test-level operation, certify insulation, creepage or electrical safety.

Description

Optocoupler working voltage and isolation-test voltage describe different conditions.

Optocoupler working voltage and isolation-test voltage describe different conditions. Test voltage is not a continuous working rating.1

Enter positive working/test ratings and test duration, nonnegative intended/observed voltage and observed duration, plus condition-match boolean. Return signed working margin, inclusive working gate and exact test-evidence match.

When to use Optocoupler Isolation Voltage Calculator

Use Optocoupler Isolation Voltage Calculator when you need to evaluate the supplied records under the calculation and evidence rules below. No insulation, creepage or electrical-safety certification is supplied.

Prepare measured device or circuit evidence with matched frequency, temperature, waveform and calibration conditions. Supply explicit caller ratings and limits.

How to use Optocoupler Isolation Voltage Calculator and understand its results

  1. Prepare measured device or circuit evidence with matched frequency, temperature, waveform and calibration conditions. Supply explicit caller ratings and limits.
  2. Enter callerRatedWorkingVoltageVrms, callerRatedTestVoltageVrms, callerRatedTestDurationSeconds, intendedWorkingVoltageVrms, observedTestVoltageVrms, observedTestDurationSeconds, testWaveformAndConditionsMatched using the field table and calculation rules, then run the tool.
  3. Read signedWorkingVoltageMarginVrms, workingVoltageWithinCallerRating, observedTestMatchesSuppliedVoltageDuration. The explanation below defines the units, signs, ordering and any flags or placeholder values.
  4. If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
Input fieldMeaningValue type; see rules belowRequirement
callerRatedWorkingVoltageVrmsCaller rated working voltage vrmsnumberRequired
callerRatedTestVoltageVrmsCaller rated test voltage vrmsnumberRequired
callerRatedTestDurationSecondsCaller rated test duration secondsnumberRequired
intendedWorkingVoltageVrmsIntended working voltage vrmsnumberRequired
observedTestVoltageVrmsObserved test voltage vrmsnumberRequired
observedTestDurationSecondsObserved test duration secondsnumberRequired
testWaveformAndConditionsMatchedTest waveform and conditions matchedbooleanRequired

Enter positive working/test ratings and test duration, nonnegative intended/observed voltage and observed duration, plus condition-match boolean. Return signed working margin, inclusive working gate and exact test-evidence match.

workingMargin=ratedWorking−intended; testMatches=conditionFlag and exact voltage/duration equality

Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.

Output fieldMeaningValue type
signedWorkingVoltageMarginVrmsSigned working voltage margin vrmsnumber
workingVoltageWithinCallerRatingWorking voltage within caller ratingboolean
observedTestMatchesSuppliedVoltageDurationObserved test matches supplied voltage durationboolean
json
{
  "input": {
    "callerRatedWorkingVoltageVrms": 250,
    "callerRatedTestVoltageVrms": 2500,
    "callerRatedTestDurationSeconds": 60,
    "intendedWorkingVoltageVrms": 300,
    "observedTestVoltageVrms": 2500,
    "observedTestDurationSeconds": 60,
    "testWaveformAndConditionsMatched": true
  },
  "output": {
    "signedWorkingVoltageMarginVrms": -50,
    "workingVoltageWithinCallerRating": false,
    "observedTestMatchesSuppliedVoltageDuration": true
  }
}

Limitations and assumptions

No insulation, creepage or electrical-safety certification is supplied.

Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors. A successfully returned false flag is an evaluated outcome; its meaning is explained above.

Alternative or Complementary methods

Use Gas Discharge Tube Holdover Voltage Calculator: GDT holdover evidence depends on recovery voltage, follow current and waveform applicability. Margin alone is insufficient. For a complementary task, use Circuit Breaker Trip Time Calculator: A breaker time-current envelope contains lower and upper trip-time evidence. Log-log interpolation is confined to supplied coverage.

References

  1. Optocoupler Isolation Voltage Calculator — tool.io

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