Modularized LED lamp

摘要

A modularized LED lamp is disclosed. Embodiments of the present invention provide an LED lamp in which digital and/or analog communication takes place between the LED module and the power supply unit (PSU) of the lamp. A controller in the LED module sends signals to the PSU, allowing separation of the two parts so that each part can be manufactured independently as opposed to being manufactured as a calibrated, matched pair. The LED module, by way of its controller, provides information to the PSU that allows the power supply to adjust its drive current appropriately. The PSU controller can also respond to operating temperature variations of the LEDs in order to provide thermal shutdown, brightness compensation, and other control if needed. In some embodiments, a controller in the PSU also responds to an external dimming input.

主权项

1. A modular LED lamp comprising:
an interchangeable LED module including an LED controller operable to independently determine at least one operating parameter for LEDs in the interchangeable LED module; and an interchangeable power supply unit (PSU) including a PSU controller to independently control current supplied to the interchangeable LED module by the interchangeable PSU in response to signaling from the LED controller, the interchangeable PSU further being interconnectable with the interchangeable LED module.