One of the boards of the power supply module rectifies the incoming line voltage to a high DC voltage (about 400 volts). The second board then does DC to DC conversion to the desired output.

The power module packaging materials market will reach almost $6.1 billion by 2030 with  a CAGR of almost 11% between 2024 ...

With the resistor in place, the module started working as expected ... some of the parts used in the Raspberry Pi 4’s power supply helped reduce low-voltage warnings.

The global solar photovoltaic (PV) module market has been growing at pace and is projected to rise to $133.12bn in market ...