That wiki example is a low-current one. For high current applications (like ours), typically the input DC is pulsed. The pulsed DC goes into an inductor. When the pulse is turned off, the BEMF of the inductor causes a higher voltage (lower current) to come out.
Alternatively (pun), the pulsed DC can go into a transformer just like AC.
The actual topology chosen depends on the requirements of the application. Basically they all use a pulsed DC, magnetics, and output conditioning circuitry.
Andy
Spektrum Development Team
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