In phase-cut dimming systems, a key technical issue has been mostly TRIAC holding current maintenance with low power LED lamps. In order to continue TRIAC conduction until the line voltage zero crossing, there have been several trials to flatten the driver input current higher than the holding current. In the previous compensation methods to provide constant input current, the input current is not precisely constant with a compensation error.

Texas Instruments (TI), the worldwide leader in power management integrated circuits, will demonstrate how its analog technologies and embedded processing are driving innovation in energy management for next-generation power designs at the Applied Power Electronics Conference (APEC), March 16-18, in Charlotte, North Carolina.