Comment on Why are laptop adapters so much larger than phone adapters of same power rating?
disguy_ovahea@lemmy.world 2 weeks agoThis is the main factor.
The second factor is manufacturer/model specific. Cleaning up the wave after conversion to DC is handled by the power adapter down to +/-5% tolerance for PD, for example. Manufacturers with lower tolerance designs will sometimes move the hardware for any additional refinement of the wave to the power adapter in order to reduce the size of the device.