LED driver and lighting application for wattage control

摘要

An LED driver for powering an LED fixture is described, the LED driver comprising:
an input terminal for receiving an input power;a power converter arranged to
receive an input power at an input terminal of LED driver;convert the input power to an output power for powering the LED fixturea sensing device for sensing the input power received by the power converter;a control unit arranged to control an output characteristic of the power converter;a configuration terminal connected to the control unit;the control unit further being arranged to:
receive, from the sensing device, a signal representing the sensed input power;receive, via the configuration terminal, a configuration signal representing a maximum wattage for the LED driver; andcontrol the output characteristic of the power converter such that the input power as sensed does not exceed the maximum wattage.

主权项

1. An LED driver for powering an LED fixture, the LED driver comprising:
an input terminal for receiving an input power; a power converter arranged to
receive at least part of the input power from the input terminal of LED driver and;supply an output power for powering the LED fixture; a control unit arranged to control an output characteristic of the power converter; a configuration terminal connected to the control unit; the control unit further being arranged to:
receive, via the configuration terminal, a configuration signal representing a maximum allowable input power received via the input terminal, the configuration signal being settable prior to and after installation of said LED driver; andcontrol the output characteristic of the power converter while maintaining the input power at or below the maximum allowable input power.