DEVICE FOR PROVIDING ELECTRIC CURRENCY AT LEAST ONE LED (LIGHT) THROUGH A POWER CONVERTER IN THE MODE OF SWITCHING AND METHOD FOR PROVIDING ELECTRIC CURRENCY AT LEAST ONE THROUGH THERE ONLY Switching Mode

摘要

A device for supplying electric current to at least one light-emitting diode (LED) via a power converter in switching mode and method for providing electric current to at least one light-emitting diode (led) via a power converter in the switching mode. Switching Mode A device and method for providing electrical current to at least one light-emitting diode (LED) via a switching mode power converter is disclosed. particularly, the device comprises at least one integrated circuit (ci), the ci programmable using a hardware description language; an electronic switch configurable to have a switching time period; an analog to digital converter (cad), the cad configured to obtain a digitized voltage input; a voltage comparator, the voltage comparator, the voltage comparator configured to obtain a clearing time of an inductive element of the power converter in switching mode in each period; wherein in operation at least one ci is configured to obtain the digitized voltage input, the inductive element discharge time, the desired electrical current, a reference constant, and an electronic switch switching time as inputs and then calculate the electronic switch on time for each switching time period, so that the electronic switch on time regulates the electric current flowing to at least one led.