LED LUMINAIRE HAVING HIGH POWER LED DRIVE CIRCUIT

摘要

A light emitting diode (LED) luminaire including a first light emitting group and a power factor correction unit connected to the first light emitting group, the power factor correction unit comprising at least one of a boost converter circuit, a buck converter circuit, and a buck-boost converter circuit. The at least one of the boost converter circuit, the buck converter circuit, and the buck-boost converter circuit are configured to step up or step down a first rectified voltage in response to a switching control signal from a control integrated circuit (IC) to generate a drive voltage equal to or greater than a first threshold voltage sufficient to drive the first light emitting group.

主权项

1. A light emitting diode (LED) luminaire, comprising:
a first light emitting group; and a power factor correction unit connected to the first light emitting group, the power factor correction unit comprising at least one of a boost converter circuit, a buck converter circuit, and a buck-boost converter circuit, wherein the at least one of the boost converter circuit, the buck converter circuit, and the buck-boost converter circuit are configured to step up or step down a first rectified voltage in response to a switching control signal from a control integrated circuit (IC) to generate a drive voltage equal to or greater than a first threshold voltage sufficient to drive the first light emitting group.