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 ...

A family of dimmable ac light-emitting-diode (LED) drivers fed from dc voltages, is presented in this paper based on zero-current-switching quasi-resonant converters. The proposed family of drivers is ...

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 ...