Semiconductor Triac Holding Current Calculator

Extract all actual piecewise-linear measuredTriacHoldingCurrentCrossingsAmps test crossings at explicitly supplied callerHoldingConductionCriterion, retain absent/multiple crossings; caller verifies test branch and evidence, no assumed device universal or operating/measurement procedure.

Description

A TRIAC holding-current observation depends on a defined conduction criterion and test branch.

A TRIAC holding-current observation depends on a defined conduction criterion and test branch.1

This reader returns all measured-curve crossings rather than assuming one universal holding value.

When to use Semiconductor Triac Holding Current Calculator

Use this tool when you need to locate all observed threshold crossings on a selected branch. Prepare measured device or specimen records under independently matched branch, temperature, frame, and unit conventions.

How to use Semiconductor Triac Holding Current Calculator and understand its results

  1. Prepare measured device or specimen records under independently matched branch, temperature, frame, and unit conventions.
  2. Enter observedTriacOnStateAmps, observedTriacConductionMetric, callerHoldingConductionCriterion, following the field table and rules below, then run the tool.
  3. Read measuredTriacHoldingCurrentCrossingsAmps. Use the output meanings below to interpret units, signs, flags, and any nested result fields.
  4. Correct reported input issues and run again. For a successful result, check the stated evidence coverage and assumptions before using it in your review.
Input fieldMeaningValue typeRequirement
observedTriacOnStateAmpsObserved triac on state ampslist of numberRequired
observedTriacConductionMetricObserved triac conduction metriclist of numberRequired
callerHoldingConductionCriterionCaller holding conduction criterionnumberRequired

Use at least two aligned coordinate and response samples with coordinates strictly increasing, plus the declared threshold. Record exact sample hits and interpolate each adjacent strict sign change relative to the threshold. Return all crossing coordinates in sample order, with duplicate adjacent coordinates removed. No crossing returns an empty list. A plateau exactly at the threshold returns its sampled positions rather than one unique crossing.

crossing=x_i+(x_(i+1)−x_i)×(level−y_i)/(y_(i+1)−y_i) for a strict sign change

Symbols follow the input and output meanings and the calculation rules above.

Coordinates, responses, and the criterion must be nonnegative.

Output fieldMeaningValue type
measuredTriacHoldingCurrentCrossingsAmpsMeasured triac holding current crossings ampslist of number
json
{
  "input": {
    "observedTriacOnStateAmps": [
      0,
      1,
      2
    ],
    "observedTriacConductionMetric": [
      0,
      2,
      4
    ],
    "callerHoldingConductionCriterion": 3
  },
  "output": {
    "measuredTriacHoldingCurrentCrossingsAmps": [
      1.5
    ]
  }
}

Limitations and assumptions

A supplied criterion defines these observed crossings. Multiple crossings, plateaus, and missing crossings are retained; the tool does not establish a unique device rating or recommend operating or test conditions.

Missing required fields, unknown fields, wrong types, and violated calculation rules are input issues. Numeric values must be finite; nonfinite results are rejected. Evidence arrays must be dense, with no missing cells. Numeric observation lists allow at most 10,000 entries, subject to any smaller bounds stated above.

Alternative or Complementary methods

For a related review, use Semiconductor Thyristor Holding Voltage Calculator: A thyristor holding-voltage observation can be located where a measured branch reaches an independently established holding current. The curve may contain no crossing or multiple crossings. For a complementary step, use Semiconductor Thyristor Gate Trigger Current Calculator: A gate-trigger-current observation needs a declared anode turn-on criterion. This tool locates the criterion on supplied branch measurements without prescribing a trigger operation.

References

  1. Semiconductor Triac Holding Current Calculator — tool.io

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