A camera module includes a lens part, an auto focusing module, an optical image stabilizer module, a case and a flexible circuit board. A feedback element coupled with the power converter comprises a first feedback loop that compensates for error on the output voltage. In accordance with another aspect of this invention, there are provided novel intermediates, inter alia the novel compounds 6a and 12a. There are means to inject liquid into the gas turbine engine. The predetermined elapsed time is based on the activated software application.