US 2011/0080046 A1Published application

Master and slave power outlet system

AssigneePowertech Industrial Co., Ltd.

InventorsYu-Lung LEE, Chun Chuan CHEN, Tsung-Chih LIN

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Abstract

This invention provides a master and slave power outlet system with a master outlet and a slave outlet, wherein the master outlet includes a current detecting unit and a first wireless module, and the slave outlet includes a second wireless module. When an operating state of a master device connected to the master outlet changes, an output current may change accordingly. The current detecting unit of the master outlet detects the change in the output current and generates a detecting signal, and the master outlet emits a wireless signal through the wireless module according to the detecting signal. The slave outlet receives the wireless signal and provides a power supply or stops providing the power supply to the slave device connected to the slave outlet.

Claims14

Dependent claims

A master and slave power outlet system, comprising:

a master outlet including:
a first power output interface for outputting a first power supply to a first master device connected to the first power output interface;
a current detecting unit connected to the first power output interface for generating a detecting signal according to whether an output current associated with the first power supply is detected;
a first processing unit connected to the current detecting unit for receiving the detecting signal in order to generate a first control signal;
a first wireless module connected to the first processing unit for receiving the first control signal before generating a wireless signal;
a slave outlet including:
a second processing unit;
a second power output interface for outputting a second power supply to a slave device connected to the second power output interface;
a second wireless module connected to the second processing unit for receiving the wireless signal and transmitting the wireless signal to the second processing unit so that the second processing unit generates a second control signal;
and
a second switch, connected to the second processing unit and the second power output interface, for controlling the second power output interface according to the second control signal to determine whether to provide the second power supply to the slave device.

8 more elements

A method for controlling an operation of a slave device coupled to a slave outlet in a master and slave power outlet system having a master outlet, comprising:

providing a master outlet, electrically connected to a master device, for generating an output current or stopping the output current from being generated according to an operating state of the master device, and generating a wireless signal according to the output current;
and
providing the slave outlet, electrically connected to the slave device, for receiving the wireless signal.

Dependencies are inferred from the claim text.