Interface circuit for a lighting device

摘要

An interface circuit for a lighting device is described, the interface circuit comprising
a single input terminal for receiving a input signal from a user interface;an output terminal for providing a control signal for controlling the lighting device,a detection circuit for receiving the input signal and identifying whether the input signal is either an analog 0-10V signal, a DALI protocol signal or a mains signal anda converter circuit for converting the input signal to the control signal based on the identification, and provide the control signal to the output terminal.

The interface as described facilitates retrofitting existing lighting applications.

主权项

1. An interface circuit for a lighting device, the interface circuit comprising:
a single input terminal connectable to one of a plurality of signal sources, each source providing a respective one of an analogue 0-10V signal, a DALI protocol signal, and a mains signal, to receive an input signal; an output terminal; a detection circuit to
receive the input signal or a signal representative thereof andidentify whether the input signal is either an analogue 0-10V signal, a DALI protocol signal or a mains signal, and a converter circuit to convert the input signal to a control signal based on the identification, and to provide the control signal to the output terminal to control the lighting device.