Comment on [discussion] DC (direct current) power network

<- View Parent
lemming741@lemmy.world ⁨2⁩ ⁨months⁩ ago

Is a square wave not AC? Current is flowing in and out of an inductor 100k times a second.

Could that 100khz square wave excite a transformer and produce usable current on the secondary? Absolutely it could, and that’s how a bigger SMPS works.

If you’re looking for a “pure DC to pure DC” converter, that’s called a linear regulator and it’s wildly inefficient. They work by varying the conductance of a transistor but are useful for low currents. The extra voltage is converted to heat.

source
Sort:hotnewtop