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Use when working with voltage regulator similarity calculations - comparing 78xx/79xx fixed regulators, LM317/LM337 adjustable regulators, or voltage regulator-specific similarity logic.
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
Use when refactoring, cleaning up, or enhancing the lib-electronic-components codebase. Provides guidance on architecture patterns, known issues, duplication hotspots, and recommended improvements.
Base skill for working with electronic components in this library. Use when adding new component types, manufacturer handlers, or working with MPN (Manufacturer Part Number) operations, BOM entries, or component classification.
Use this skill BEFORE creating a PR to ensure all documentation, skills, and learnings are updated. Critical for preserving institutional knowledge and preventing documentation drift.
Use when working with component similarity calculations - comparing MPNs, finding equivalent parts, implementing new similarity calculators, or understanding how component matching works.
Use when working with capacitor similarity calculations - comparing ceramic/electrolytic/film capacitor MPNs, understanding value/voltage/dielectric matching, or capacitor-specific similarity logic.
Use when working with connector similarity calculations - comparing connector MPNs, understanding pin count/pitch/family matching, or connector-specific similarity logic.
| name | similarity-regulator |
| description | Use when working with voltage regulator similarity calculations - comparing 78xx/79xx fixed regulators, LM317/LM337 adjustable regulators, or voltage regulator-specific similarity logic. |
Guidance for working with VoltageRegulatorSimilarityCalculator in the lib-electronic-components library.
For metadata-driven similarity architecture, see /similarity-metadata:
The VoltageRegulatorSimilarityCalculator compares voltage regulators based on:
ComponentType.VOLTAGE_REGULATOR
// Any type starting with "VOLTAGE_REGULATOR"
Returns false for null type.
HIGH_SIMILARITY = 0.9; // Same voltage/compatible adjustable
MEDIUM_SIMILARITY = 0.7; // Related but different specs
LOW_SIMILARITY = 0.3; // Different voltage or polarity
| Part | Output Voltage |
|---|---|
| 7805 | +5V |
| 7809 | +9V |
| 7812 | +12V |
| 7815 | +15V |
| 7824 | +24V |
| Part | Output Voltage |
|---|---|
| 7905 | -5V |
| 7912 | -12V |
| 7915 | -15V |
| 7924 | -24V |
// Same voltage, different manufacturer = HIGH
calculator.calculateSimilarity("LM7805", "MC7805", registry);
// Returns 0.9
// Different voltage = LOW
calculator.calculateSimilarity("LM7805", "LM7812", registry);
// Returns 0.3
// Positive vs Negative = LOW
calculator.calculateSimilarity("LM7805", "LM7905", registry);
// Returns 0.3
| Part | Current | Equivalent |
|---|---|---|
| LM317 | 1.5A | LM317T, LM317K, LM317H |
| LM338 | 5A | Compatible with LM317 |
| LM350 | 3A | Compatible with LM317 |
| Part | Current | Note |
|---|---|---|
| LM337 | 1.5A | Negative equivalent of LM317 |
// Same adjustable regulator, different package = HIGH
calculator.calculateSimilarity("LM317T", "LM317K", registry);
// Returns 0.9
// Compatible positive adjustable regulators = HIGH
calculator.calculateSimilarity("LM317", "LM350", registry);
// Returns 0.9
// Positive vs Negative adjustable = LOW
calculator.calculateSimilarity("LM317", "LM337", registry);
// Returns 0.3
Common package suffixes:
| Code | Package |
|---|---|
| T | TO-220 |
| CT | TO-220 (different pinout) |
| K | TO-3 |
| KC | TO-3 |
| KV | TO-3 |
| H | TO-39 |
| S | SOT-223 |
| MP | SOT-223 |
| DT | TO-252 |
// Same regulator, different packages = HIGH
calculator.calculateSimilarity("LM7805CT", "LM7805T", registry);
// Returns 0.9
| Prefix | Manufacturer |
|---|---|
| LM | National/TI |
| MC | Motorola/ON Semi |
| UA | Fairchild |
| L78 | ST |
| KA78 | Fairchild |
// Same voltage, different manufacturer
calculator.calculateSimilarity("LM7805", "MC7805", registry);
// Returns 0.9
// Same adjustable, different package
calculator.calculateSimilarity("LM317T", "LM317K", registry);
// Returns 0.9
// Compatible adjustable family
calculator.calculateSimilarity("LM317", "LM338", registry);
// Returns 0.9
// Different voltage
calculator.calculateSimilarity("LM7805", "LM7812", registry);
// Returns 0.3
// Positive vs negative
calculator.calculateSimilarity("LM317", "LM337", registry);
// Returns 0.3
// Non-regulator parts
calculator.calculateSimilarity("LM358", "LM324", registry);
// Returns 0.0
xx in 78xx/79xx indicates voltage (05=5V, 12=12V)7[89](\d{2}) extracts the voltage code