Scalable electronic modules having a common form factor

An electronic system for a vehicle, comprising:

• a first module including:
• a first circuit board having a predetermined form factor;
• a second module on the first circuit board and including a plurality of pins;
• a first electrical connector disposed on a first surface of the first circuit board and including a plurality of pins;
• and
• a first plurality of electrical conductors connecting the pins of the first electrical connector with the pins of the second module, respectively
• wherein the second module is configured to:
• receive an input voltage;
• convert the input voltage to a plurality of different voltages;
• and
• output the different voltages via ones of the first plurality of electrical conductors, respectively;
• and
• a third module including:
• a second circuit board having the predetermined form factor;
• a fourth module on the second circuit board and including a plurality of pins;
• a second electrical connector disposed on a first surface of the second circuit board and including a plurality of pins, the second electrical connector coupled to the first electrical connector such that the pins of the first electrical connector are electrically connected to the plurality of pins of the second electrical connector, respectively;
• a third electrical connector disposed on a second surface of the second circuit board that is opposite the first surface of the second circuit board, the third electrical connector including a plurality of pins that are electrically connected to the plurality of pins of the second electrical connector, respectively;
• and
• a second plurality of electrical conductors connecting ones of the pins of the fourth module with one of:
• (a) ones of the pins of the second electrical connector, respectively;
• and (b) ones of the pins of the third electrical connector, respectively.