Solid-State Lighting With Multiple Controls And Tests

Abstract

A light-emitting diode (LED) luminaire control gear comprising a rechargeable battery and a control and test circuit is adopted to provide an emergency power to operate a luminaire that works only in alternate-current (AC) mains. The luminaire comprises LED arrays and a power supply. The LED luminaire control gear further comprises a current-fed converter circuit, a control and test unit, and a relay switch. When a line voltage from the AC mains is unavailable or when a battery discharging test is initiated, the LED luminaire control gear is automatically started to provide a high DC voltage within an input operating voltage range of the luminaire and a low-voltage conversion circuit to control the power supply to operate the LED arrays without strobing. The relay switch is configured to couple either the line voltage or the high DC voltage to the power supply to operate thereon.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present disclosure is part of a continuation-in-part (CIP) application of U.S. patent application Ser. No. 16 / 694,970, filed 25 Nov. 2019, which is part of CIP application of U.S. patent application Ser. No. 16 / 681,740, filed 12 Nov. 2019, which is part of CIP application of U.S. patent application Ser. No. 16 / 664,034, filed 25 Oct. 2019, which is part of CIP application of U.S. patent application Ser. No. 16 / 572,040, filed 16 Sep. 2019, which is part of CIP application of U.S. patent application Ser. No. 16 / 547,502, filed 21 Aug. 2019 and issued as U.S. Pat. No. 10,485,073 on 19 Nov. 2019, which is part of CIP application of U.S. patent application Ser. No. 16 / 530,747, filed 2 Aug. 2019 and issued as U.S. Pat. No. 10,492,265 on 26 Nov. 2019, which is part of CIP application of U.S. patent application Ser. No. 16 / 458,823, filed 1 Jul. 2019 and issued as U.S. Pat. No. 10,485,065 on 10 Nov. 2019, which is part of CIP application of U.S....

AI Technical Summary

Benefits of technology

The LED luminaire control gear described in this patent makes it possible to operate LED lights using a rechargeable battery and a low-voltage conversion circuit. This allows for dimming and strobing while maintaining stability and efficiency. The control and test unit can also be used with various LED luminaire fixtures and support both normal mode and emergency mode operations. The technical effects are improved flexibility, reliability, and efficiency of LED lighting systems.

Problems solved by technology

But the fact is that total cost of ownership for this approach is high regardless of very low initial cost.

If the existing ballast is not compatible with the ballast-compatible LED lamp, the consumer will have to replace the ballast.

Some facilities built long time ago incorporate different types of fixtures, which requires extensive labor for both identifying ballasts and replacing incompatible ones.

Maintenance will be complicated, sometimes for the lamps and sometimes for the ballasts.

The labor costs and long-term maintenance costs will be unacceptable to end users.

In this sense, any energy saved while using the ballast-compatible LED lamps becomes meaningless with the constant energy use by the ballast.

In the long run, the ballast-compatible LED lamps are more expensive and less efficient than self-sustaining AC mains-operable LED lamps.

Meeting OSHA requirements takes time and investment, but not meeting them could result in fines and even prosecution.

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