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Capacitive Transformerless Power Supply Calculator
Size the dropper capacitor for capacitor-fed mains supplies
📖 Capacitive Transformerless Power Supply Calculator
Capacitive dropper supplies use a series capacitor whose reactance limits current: Xc = 1 / (2Ï€fC). Required capacitance C = I / (2Ï€fVrms). Always include bleed resistors and surge protection.
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💡 Tips & Information
- Capacitive Transformerless Power Supply Calculator uses standard engineering formulas; always verify with project requirements.
- Keep units consistent across all inputs to avoid conversion errors.
- Field conditions, tolerances, and safety factors may require additional adjustments.