Astronics Advanced Electronic Systems Corp.

Crane Electronics, Inc.

Anton Zlatev

Ernest Clyde Parker

Jon M Fifield

Daniel P Jackson

Dongmin Liu

Brien G McCrea

A self-dimming light-emitting diode (LED) system is disclosed. The LED system may include a voltage regulation circuit, an ambient light sensor, and an LED. The LED system provides for a reduction in illumination intensity of an LED, proportional to a reduction in surrounding ambient light intensity. Surrounding ambient light intensity is detected by the ambient light sensor. The LED system provides an autonomous, reduced-power system for low ambient lighting environments.

Self dimming LED apparatus

This disclosure describes systems, methods and articles of a passive EMI filter integrated with an active boost converter for low-side line transients and/or an active clipper for high-side line transients. During steady-state operation, the active circuitry is disabled so the circuit functions as a passive EMI filter. Inductive and capacitive components used in the passive EMI filter during steady-state operation may serve a dual role and become part of a boost converter when input voltage is below a low-line steady-state and, in some variations, the inductive and capacitive components may become part of a transient clipper when the input voltage is above a high-line steady-state level. The transient clipper may be implemented as a linear pass element or as a switch-mode converter (e.g., buck converter).

Integrated tri-state electromagnetic interference filter and line conditioning module

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Edmonds, WA, United States of America

Anton Zlatev