PROTECTIVE CIRCUIT FOR USE IN A LIGHTING CIRCUIT

DE602022038447T2Active Publication Date: 2026-06-17SIGNIFY HOLDING BV
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Patent Information

Application Number
DE602022038447
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-05-10
Filing Date
2022-01-26
Publication Date
2026-06-17
Estimated Expiration
2042-01-26

AI Technical Summary

Technical Problem

Existing protection circuits for lighting circuits face challenges in meeting both hi-pot safety requirements and clamping voltage during surge events, leading to high residual voltages and increased material damage and service interruptions.

Method used

A protection circuit combining a gas discharge tube and a controllable voltage triggering circuit, such as a SiDAC, to manage different voltage levels during hi-pot and surge tests, ensuring low residual voltage during surges while maintaining high impedance during normal operation.

Benefits of technology

The solution effectively reduces residual voltage during surge events by up to 60%, lowering component costs and improving thermal performance, while meeting safety standards.

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