Power management and distribution device

A power management and distribution device for powering a personal electronic device via a direct current outlet unit at a passenger seat in an airplane cabin, the power management and distribution device comprising:

• a first interface for receiving an electrical supply power from a master control unit connected to a primary power source;
• a second interface for supplying the electrical supply power received at said first interface to another power management and distribution device;
• a third interface for supplying the electrical supply power received at said first interface to the direct current outlet unit for the personal electronic device;
• a further interface for supplying the electrical supply power received at said first interface to either an inflight entertainment screen or an alternating current outlet at the passenger seat;
• a power measurement device configured to measure an electrical outlet power drawn via the third interface and the further interface;
• and
• a control unit configured to compare the electrical outlet power measured by the power measurement device with a personal electronic device power limit and to control the electrical outlet power drawn by the direct current outlet unit via the third interface based on said comparison;
• wherein the control unit is configured to switch the alternating current outlet on or off based on said comparison;
• and/or
• wherein the control unit is configured to subtract the power drawn from the inflight entertainment screen via the interface from a predefined power limit of the power management and distribution device to obtain the PED power limit.