Abstract: A power distribution apparatus to control the supply of electrical power to a suite of master and peripheral devices, the apparatus comprising a master electrical outlet and at least one slave electrical outlet, both connectable to a common power supply. The apparatus including a sampling means adapted to sample power drawn from the master electrical outlet, and a controller adapted to calculate an updating average of a plurality of sampled power levels and operable to isolate the slave electrical outlet from the power supply in response to a prescribed change in the calculated average power drawn from the master electrical outlet relative to an automatically calculated switching threshold.

Abstract: A power distribution apparatus for use with a suite of master and peripheral devices, comprising a master electrical outlet and at least one slave electrical outlet, both connectable to a common electrical power supply. The apparatus further comprising a monitoring means for monitoring data traffic, e.g. USB bus signals, associated with a master device such as a personal computer, and a controller for interrupting power to the at least one slave electrical outlet in response to the monitoring means detecting a prescribed change in the data traffic of the master device.

Abstract: A power distribution apparatus for use with a master device and suite of peripheral devices, comprising a master electrical outlet and at least one standby electrical outlet, both connectable to a common electrical power supply. The apparatus further comprising sensing means for detecting changes in the operating state of master device and a controller operable to interrupt power to the at least one standby electrical outlet when the sensing means detects a prescribed change in operating state of the master device. In which, following an interruption of power, the controller automatically restores power to the at least one standby electrical outlet after a predetermined interval of time, thereby providing at least a standby power to any peripheral device connected to the standby outlet when the master device is off or on standby. In this way, peripheral devices may then enter standby states of operation, if equipped to do so.