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High-Voltage LED-Dimmable Circuits

Photonics Spectra
Oct 2017
LSI Computer Systems Inc.Request Info
 
LED-Dimmable Driver Integrated CircuitsThe LS9100 Archimedes Series of high-voltage, LED-dimmable driver integrated circuits from LSI Computer Systems Inc. has a rugged design optimized for driving LED banks directly from the main utility line.

The devices eliminate the previously required, expensive and bulky alternating current-direct current power supplies formerly used to drive LEDs. The LS9100 has integrated a full bridge rectifier, a current limiter source protection circuit and built-in thermal protection feature centrally located in the device that protects the integrated circuit from operating in atypical conditions.

A voltage shutdown circuit safeguards the circuit and the system’s LEDs from line voltage surges that can overstress the system, all on a single circuit. By merging these features into an integrated circuit, the LS9100 enables luminary designers to make LED luminaries with designs that are unconstrained by the size and bulk of the previously required power supply.


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