| http://www.w3.org/ns/prov#value | - A control circuit as in claim 4 wherein the voltage downconverter comprises:(a) N equal-valued capacitors, where N is an integer greater than or equal to 2; (b) means for selectively connecting the N capacitors in series between the battery terminal voltage and ground in a sequence of series-connected configurations to generate N intermediate voltages, each intermediate voltage comprising an integ
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