A
power control system comprises at least one POL
regulator, at least one auxiliary device, a serial data
bus operatively connecting the POL
regulator and the auxiliary device, and a
system controller adapted to exchange
digital data with the POL
regulator and auxiliary device via the serial data
bus. The auxiliary device may include a
power regulation device, a switching device, a
motor control device, a
temperature control device, and / or a
peripheral device. At least one auxiliary device controller may be operatively coupled between the auxiliary device and the serial data
bus. The auxiliary device controller may be integrated with the
system controller, or may be external to the
system controller. The auxiliary device controller may further comprise at least one register adapted to store the
programming data, with the
programming data including at least one of turn-on
delay, turn-off
delay, polarity of input / output signals, fault configuration, and group membership. The auxiliary device controller may be further adapted to receive
monitoring data from the auxiliary device, with the auxiliary device controller communicating the
monitoring data to the
system controller via the serial data bus.