METHOD AND APPARATUS FOR DIMMABLE LED DRIVER

摘要

Aspects of the disclosure provide a method for driving dimmable load. The method includes detecting a dimming characteristic in an energy source from which a load draws a first energy according to the dimming characteristic. The dimming characteristic requires a second energy in addition to the first energy to be drawn from the energy source to sustain an operation of the energy source. The method further includes biasing a switch to consume the second energy. The second energy and the first energy are drawn from the energy source to sustain the operation of the energy source.

主权项

1. An apparatus, comprising:
an energy transfer circuitry configured to transfer energy from an energy source to a load; control circuitry configured to detect a dimming characteristic in the energy source; a first switch configured to be biased by the control circuitry to consume an energy from the energy source based on the dimming characteristic; and a second switch coupled with the first switch in series together forming a current path to bleed the enemy.