Light devices having controllable light emitting elements

摘要

In some embodiments, a light device for generating light includes light emitting diodes (LEDs), and power supply circuitry including at least one switching regulator including switching elements to provide power to the LEDs. The light device includes a device support structure including a device connector and an LED support to support the LEDs, wherein the device connector is one end of the device support structure, and the power supply circuitry is supported by the device support structure. Other embodiments are described.

主权项

1. A light device for generating light, comprising:
light emitting diodes (LEDs); power supply circuitry including alternating current (AC)-to-direct current (DC) conversion circuitry and at least one switching regulator including switching elements to provide power to the LEDs, wherein the switching regulator includes switching control circuitry to control switching of the switching elements to control intensity of the LEDs, the switching control circuitry to control switching pulse width and frequency to control LED intensity in response to at least one external intensity control signal; and a wireless receiver coupled to the power supply circuitry, the wireless receiver to receive the at least one external intensity control signal from an external intensity control circuitry.