The LM3445 is a AC-DC buck(step-down) constant current LED controller designed to be compatible with standard TRIAC dimmer.

The Design and Realization of the Airfield Light Dimmer Control System;

This paper mainly introduces the main part of theater network control system: FK180 cinema network controller, CAN bus adapter and dimmers design ideas, give a detailed diagram of the hardware

Analysis and simulation for mechanical characteristics of grating movable light modulator;

A light modulator of thermo-optical effect basedon semiconductor-metal phase transition;

Numerical simulation of Otto structure in surface plasma wave light modulator;

Double barrier system,the core structure of RTD(resonant tunneling diode)combined with photo detector and optical modulator to form the resonant tunneling photodetector and resonant tunneling optical modulator.

Based on the Pockels effect, improvement on optical modulator with quarter wave plate is introduced theoretically by analyzing the principles of optical modulator.

The optical modulator includes high frequency DFB laser diode modules,APC circuits and ATC circuits.

The optical demodulator consists of PD modules of high speed trans-impedance amplifier and broad-band low noise amplifier.

This paper mainly introduces the operation principle、the choose for FSR(Free spectrum Range) of DI\'s key parameter、transmission curve、control principle and control methods of high capacity、long distance and span optical transmission system DPSK(Difference Phase-Shift-Keyed) optical demodulator delay line interferometer(DI).