A trailer mounted mobile power generation system provides electrical power at locations where it is needed, either separate from or as a supplement to power from an electrical power distribution grid. ; and sliding members produced by forming a hard film on the surface of the alloy. The invention further provides a dual latch mechanism for a sterilization container comprising the improved support assembly. , balloon, coupled to a reservoir via a conduit. The multilayer film can take the form of a a biaxially-oriented film. The method includes sampling the output signal to provide a sampled output signal, and generating a pulsewidth modulated drive signal having a duty cycle that is dependent on the sampled output signal, wherein the output voltage is sampled at sampling times that are dependent on the duty cycle.