In this paper, the boost integrated flyback converter derived AC-DC converter for the indoor Light Emitting Diode (LED) lamp application is proposed. The valley fill circuit is employed in the boost ...

Systemic failures led to a door plug flying off a Boeing 737 Max, NTSB says The National Transportation Safety Board chairwoman says heroic actions by the crew aboard an Alaska Airlines flight ...

Arrest made in connection with De Kalb double homicide Jun 23, 2025 Updated Jun 23, 2025 ...

Challenge-led learning helps them apply their knowledge to make a real difference. It shows the usefulness of the concepts learnt over the course of their studies, and gives them with skills that are ...

This paper proposes two methods of reducing the storage capacitance in the ac/dc power supplies for light emitting diode (LED) lighting. In doing so, film capacitors can be adopted instead of ...

Avoid that the computer is turning off, going to sleep mode or hibernate during the charging process. If using a laptop computer, connect the computer's AC adapter. Troubleshooting: If the computer is ...