On 5/5/2019 11:49 AM, wrote:
Since no reasonable series voltage combination satisfies
Nv=3,7; Mv=4,2
how are these strange voltages achieved, and why?

What semiconductor technology do modern mobiles use:
bipolar, CMOS ... or what?

Where are these topics documented?

TIA.

You'll have to define Mv more precisely as it has numerous meanings. As for
3.7v (assuming that is what you are referring to) that is the operating
voltage of your typical lithium secondary cell and is defined by the
chemistry and physics involved. It is the voltage of a single cell so no
series combination is needed to satisfy it. It gets more peculiar when you
start looking at the advertised voltages in various battery-powered tools
where ad-speak and reality become inextricably woven together and confused
in the process: there is no combination of cell voltages that will satisfy
the 18V or 24V numbers that are bandied about when adverts brag of
lithium-powered equipment.