Abstract: A system and method for secure communication for power over Ethernet (PoE) between a computing device and a switch. Various power management information can be used as inputs in a process for determining a power request/priority. This power management information can be communicated in Layer 2, Layer 3, or higher messaging during initial power allocation and ongoing power reallocation. Encryption of such messaging enables confidentiality, secure allocation processes, and prevention of denial of service attacks.

Abstract: A power control device includes: a controller configured to switch on or off a power supplied to other components; a monitoring module configured to monitor an on/off state of power that is switched by the controller; and a comparing module configured to compare a control state of power switched by the controller and a supply state monitored by the monitoring module, wherein the controller is configured to control the power so as to equalize the control state and the supply state when a comparison result of the comparing module shows that the control state and the supply state are different from each other.

Abstract: According to one disclosed embodiment, a smart power management system includes a power conversion unit having a communication module and a power management module that can convert mains power into a form that can be used to power a plurality of electronic devices. In one embodiment, the power conversion unit can selectively disconnect power availability provided for a particular electronic device and reduce phantom load waste by communicating with a connected electronic device and exchanging information. In another embodiment, the power conversion unit can selectively disconnect power availability provided for a particular electronic device by monitoring the electronic device's power usage over time and determining an appropriate power availability based on predetermined power management parameters. In another embodiment, the power conversion unit can communicate with other power conversion units to form a mesh network.

Abstract: A power saving circuit is provided for a consumer device for disconnecting a mains power supply (2) from a supply circuit (including a transformer (18)) of the device when the device goes into a standby mode. The circuit comprises a high voltage switching module (16) interposed between the mains alternating current electrical power supply (2) and such a supply circuit. The circuit is reset by an actuable initiating component (12, 28) for generating a temporary signal to the high voltage switching module (16) to change the state of the switching module (16) to a conducting state. Then a sensing component (26) operates in a first mode responsive to the supply of mains alternating current to the supply circuit for maintaining the switching module (16) in a conducting state replacing the temporary signal.

Abstract: A variable power device in a form of a power strip includes a plurality of power outlets for powering electrical devices connected thereto. A current sensing circuit is electrically coupled to each power outlet and senses current flowing through the power outlet and drawn by an electrical device connected to the outlet. A power control circuit selectively provides one of a standby mode power signal and an active mode power signal to a respective power outlet in response to the feedback signal from the current sensing circuit associated with the power outlet.

Abstract: In accordance with various aspects of the present invention, a method and circuit for reducing power consumption of a power module during idle conditions is provided. In an exemplary embodiment, a power module is configured for reducing power during idle mode by disengaging at least one power output from a power input. A power module may include one or more power outputs and one or more power module circuits, with power input connected to the power outputs through the power module circuit(s). The power module circuit may include a current measuring system, a control circuit, and a switch. The current measuring system provides an output power level signal that is proportional to the load at the power output. If current measuring system behavior indicates that a power output is drawing substantially no power from the power input, the switch disengages the power input from the power output.

Abstract: A power strip device includes a power plug, a master power outlet, multiple slave power outlets and a control circuit. The control circuit includes an inductor, a reed switch and a switching circuit. Under the control of the control circuit, the power strip device allows the slave power outlets to be automatically turned on or off simultaneous with the master power outlet being turned on or off.

Abstract: A system for controlling a heating and cooling system for use on a machine includes a condenser, an evaporator assembly, an electric motor driven compressor, and a master controller operable to determine and regulate an operational speed of the compressor. The master controller includes a plurality of control algorithms each receiving respective dynamic input information and outputting a respective controller speed request based upon the respective dynamic input information.

Abstract: In accordance with various aspects of the present invention, a method and circuit for reducing power consumption of a power strip is provided. In an exemplary embodiment, a power strip is configured for reducing or eliminating power during idle mode by disengaging an outlet from power input. A power strip may include two or more outlets and two or more outlet circuits, with AC power input connected to the outlets through the outlet circuit(s), which may include a current transformer, a control circuit, and a switch. The current transformer secondary winding provides an output power level signal proportional to the outlet load. If behavior of the current transformer secondary winding indicates that the outlet is drawing substantially no power from the AC power input, the switch facilitates disengaging of the current transformer primary from the outlet.

Abstract: In accordance with various aspects of the present invention, a method and circuit for reducing power consumption of a wall plate system during idle conditions is provided. In an exemplary embodiment, a wall plate system is configured for reducing power during idle mode by disengaging at least one outlet from a power input. A wall plate system may include one or more outlets and one or more wall plate circuits, with power input connected to the outlets through the wall plate circuit(s). The wall plate circuit may include a current measuring system, a control circuit, and a switch. The current measuring system provides, through the switch, an output power signal that is proportional to the load at the outlet. If behavior of the current measuring system indicates that an outlet is drawing substantially no power from the power input, the switch disengages the power input from the outlet.

Abstract: A protection circuit having: a connecting terminal which is connected to an external circuit and which inputs and outputs a charging/discharging current of a secondary battery to and from the external circuit; a voltage detection unit for detecting an output voltage of the secondary battery; a current detection unit for detecting a discharging current of the secondary battery; a power consumption calculation unit for calculating power consumption of the external circuit by multiplying a value of the output voltage detected by the voltage detection unit by a value of the discharging current detected by the current detection unit; and an external protection unit for executing external protection processing of protecting the external circuit when the power consumption calculated by the power consumption calculation unit exceeds a power threshold set to a value that is not less than a maximum value of power consumption of the external circuit.

Abstract: In order to mount a mobile phone in a test device, the current between the battery unit and the phone unit is fed through a switch unit. The switch unit contains at least one switch for interrupting the current, e.g. for resetting the mobile phone after malfunction.

Abstract: This device, either applied as an aftermarket part to any cellular charging device or as an internal part of a newly designed “factory offered” cellular charging device, when unplugged from the battery operated cellular device, will automatically stop pulling power from the main power source to include but not limited to a wall mount power outlet, vehicle data port or secondary computer port, thereby eliminating the waste of electricity and precious resources.

Abstract: A system is described including a master power saving device configured for connection with a master load. The master power saving device is configured to determine when the master load is in an operating condition and a non-operating condition, and the master power saving device provides non-continuous power to the master load when the master load is in a non-operating condition. A slave power saving device is configured for connection with a slave load. The slave power saving device is configured to receive a signal from the master power saving device to turn off said slave load.

Abstract: A method for operating a grinder pump station and inhibiting the likelihood of operation of a grinder pump assembly under at least one of a run dry condition and a blocked condition includes providing a wattmeter circuit operably connected to the grinder pump assembly and measuring real power using the wattmeter circuit during operation of the grinder pump assembly to process sewage received in a tank and discharge the processed sewage from the tank. The grinder pump assembly is automatically turned off based on the real power (e.g., average value of the product of instantaneous values of voltage and current over time) measured by the wattmeter circuit due to the at least one of a run dry condition and a blocked condition.

Abstract: The switch device includes a control switch that turns on/off an electrical connection between an apparatus and the power supply, a condition judging circuit that judges conditions of driving the control switch, an electric wave reception circuit that receives an electric wave, and a power supply circuit that generates power from the electric wave received by the electric wave reception circuit. An electric wave transmission device that transmits an electric wave for making the switch device operate is arranged in a space, whereby the electric wave can be received by the electric wave reception device in the specific space. The switch device controls the control switch to be turned off/on when the electric wave is received. Alternatively, when the electric wave is not received, the switch device turns on/off the control switch.

Abstract: A method and structure for preventing operation of a circuit in a high current operating region by disabling a start-up circuit until a power supply headroom is detected at a predetermined voltage level.

Abstract: An aircraft power system is provided having an aircraft power supply and a bidirectional switch. The aircraft power supply includes an alternator, a battery and a load. The bidirectional switch is coupled between one of the alternator and the battery, and the load. The switch includes a first FET, a second FET and timing circuitry. A source of the first FET is coupled with a source of the second FET. A drain of the first FET is coupled with one of the alternator and the battery. A drain of the second FET is coupled with the load. The timing circuitry is configurable to generate a control signal deliverable to a gate of the first FET and the second FET for setting the first FET in selective on and off positions and the second FET in corresponding selective off and on position.

Abstract: An electric power relaying unit of an image forming apparatus which includes an electric power blocking unit which selectively blocks the alternating current electric power output from the electric power input unit to be input to the electric power output unit, the electric power blocking unit including: a switching unit which switches an input of the alternating current electric power with respect to the electric power output unit; an electric power detecting unit which detects an electric power property; a memory unit in which a predetermined electric power property information is stored; and a control unit which controls a switching operation of the switching unit if determining that the detected electric power property corresponds to a predetermined electric power property in a failure of the image forming apparatus main body from a comparison result.

Abstract: A power adapter includes a primary side for receiving power from a mains power supply; a secondary side for providing operating and/or charging power, derived from the primary side, to an electronic device connected to the secondary side; presence logic for determining whether the electronic device is connected to the secondary side; and switching logic for turning off the primary side automatically when the presence logic determines the electronic device is not connected. The power adapter thus shuts itself down if no electronic device is attached, and automatically starts itself up when a device is connected to the power adapter and is thus needed. The power adapter may also include voltage detection logic that detects when the device is fully charged. The power adapter also shuts itself down when an attached electronic device becomes fully charged, and automatically starts itself up when the charged state of the electronic device falls below a predetermined level.

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.

Abstract: An electrical distribution system is designed to automatically connect a dedicated group of circuits, which are normally powered by a primary power source, to an auxiliary power source upon detection that there has been a disruption or failure in the primary power source. The system includes a switching arrangement that allows an operator to manually connect the auxiliary power source with other circuits that are not generally powered during disruption of the primary power source. The switching arrangement includes an interlinked switch or breaker arrangement that prevents any of the other circuits that are normally powered by the primary source from being automatically connected to the primary power source when primary power source is restored if those other circuits are connected to the auxiliary power source when the primary power source is restored.

Abstract: An integrated circuit includes a radiation-triggered shutdown circuit that disables a critical aspect of the integrated circuit rendering the integrated circuit non-functional when the integrated circuit receives a predetermined radiation dose. That ensures integrated circuits including the radiation-triggered shutdown circuit are ITAR compliant.

Abstract: A portable electronic device 1 comprising a battery 14 coupled with an electronic circuit 10-12 through a switching circuit 15 for switching on or off the supply voltage Vcc to the electronic circuit using the battery. The portable device comprises at least one electromagnetic field detection circuit 13 coupled with the switching circuit 15 to start the power supply to the electronic circuit 10-12 if an electromagnetic field is detected.

Abstract: The present invention relates generally to a load center. More particularly, the invention encompasses a generator ready load center (GRLC). The present invention is also directed to a novel generator ready load center (GRLC) that operates as a standard load center but is ready to accommodate an automatic transfer switch (ATS) for a standby generator, or a manual transfer switch (MTS) for a portable generator. Further the generator ready load center provides an automatic and manual transfer between primary and secondary power sources. The generator ready load center solves the problem of dangerous back-feeding between the primary power source and the secondary power source.

Abstract: In accordance with various aspects of the present invention, a method and circuit for reducing power consumption of a power module during idle conditions is provided. In an exemplary embodiment, a power module is configured for reducing power during idle mode by disengaging at least one power output from a power input. A power module may include one or more power outputs and one or more power module circuits, with power input connected to the power outputs through the power module circuit(s). The power module circuit may include a current measuring system, a control circuit, and a switch. The current measuring system provides an output power level signal that is proportional to the load at the power output. If current measuring system behavior indicates that a power output is drawing substantially no power from the power input, the switch disengages the power input from the power output.

Abstract: In accordance with various aspects of the present invention, a method and circuit for reducing power consumption of a wall plate system during idle conditions is provided. In an exemplary embodiment, a wall plate system is configured for reducing power during idle mode by disengaging at least one outlet from a power input. A wall plate system may include one or more outlets and one or more wall plate circuits, with power input connected to the outlets through the wall plate circuit(s). The wall plate circuit may include, a current measuring system, a control circuit, and a switch. The current measuring system provides, through the switch, an output power signal that is proportional to the load at the outlet. If behavior of the current measuring system indicates that an outlet is drawing substantially no power from the power input, the switch disengages the power input from the outlet.

Abstract: In accordance with various aspects of the present invention, a method and circuit for reducing power consumption of a power strip is provided. In an exemplary embodiment, a power strip is configured for reducing or eliminating power during idle mode by disengaging an outlet from power input. A power strip may include two or more outlets and two or more outlet circuits, with AC power input connected to the outlets through the outlet circuit(s), which may include a current transformer, a control circuit, and a switch. The current transformer secondary winding provides an output power level signal proportional to the outlet load. If behavior of the current transformer secondary winding indicates that the outlet is drawing substantially no power from the AC power input, the switch facilitates disengaging of the current transformer primary from the outlet.

Abstract: Controllable change-over apparatus for a solar module comprises an output terminal, a DC/DC converter, a controllable switching device and a control. The controllable switching device is implemented with a first switch position and a second switch position, wherein, in the first switch position, a power output of the solar module is connected to the output terminal via the DC/DC converter, and, in the second switch position, the power output of the solar module is connected to the output terminal by bypassing the DC/DC converter. The control switches the controllable switching device by using a performance characteristic for switching the same to the first or second switch position. In particular, the control is implemented to connect the solar module directly to its output terminal in the case of high power dissipation of the same, i.e. at strong solar radiation, and to connect the solar module to the output terminal via the DC/DC converter in the case of weak power dissipation of the same, i.e.

Abstract: An electrical distribution system is designed to automatically connect a dedicated group of circuits, which are normally powered by a primary power source, to an auxiliary power source upon detection that there has been a disruption or failure in the primary power source. The system includes a switching arrangement that allows an operator to manually connect the auxiliary power source with other circuits that are not generally powered during disruption of the primary power source. The switching arrangement includes an interlinked switch or breaker arrangement that prevents any of the other circuits that are normally powered by the primary source from being automatically connected to the primary power source when primary power source is restored if those other circuits are connected to the auxiliary power source when the primary power source is restored.

Abstract: Disclosed are an apparatus, a system and a method for reducing standby power of an electronic appliance, and an apparatus for reducing standby power of an electrical outlet.

Abstract: Electronic leakage reduction techniques are provided, whereby an electrical outlet with a programmable computing unit is programmed to detect the current, resistance, power or pattern of current, resistance or power of an attached appliance in the on position and/or off position. Among other aspects, the electrical outlet with a programmable computing unit delivers a selected voltage below the original operational voltage and/or delivers voltage at particular durations for particular intervals to the appliance in the off position and compares detected current, resistance, power or pattern of current, resistance or power to programmed levels associated with the appliance in the on position and/or off position. If any or some of those characteristics match those programmed associated with the appliance in the on position, or fail to match those programmed associated with the off position by a set confidence interval, original operational voltage is provided to the appliance.

Abstract: A system and method are presented to detect and account for regenerated voltage in a three phase power source failures. The method involves monitoring a power source for phase voltage unbalances to determine the presence of a single phase failure. If the voltage unbalance caused by the single phase failure is restored before a sensing timer expires, a regenerated voltage condition is detected and retransfer to the power source is inhibited. Retransfer to the power source may be delayed by a period determined by a retransfer time value, in order to prevent transfer cycling between the preferred power source and an alternate power source. In addition, retransfer inhibiting may be terminated due to user interaction, power source voltage readings indicating a repair state, or by failure of an alternate source.

Abstract: A fail-safe circuit and fail-safe methods for controlling gas valves are provided. In one illustrative embodiment, a fail-safe circuit includes at least one input that can be connected to a control device and at least one output that can be connected to a gas valve. In some cases, the fail-safe circuit may only supply an output voltage for opening the gas valve if the input signal received from the control device includes at least two different successively applied frequency signals. Other methods and embodiments are also contemplated.

Abstract: A system is described including a means for receiving a potential and selectively supplying the potential to a load. The receiving and supplying means being responsive to a load control signal to supply the potential to the load when the load control signal is present. The system also includes a means for measuring a load demand. Also included is a means for controlling the receiving and supplying means. The controlling means continuously providing the load control signal when the load demand is greater than a predetermined threshold. The controlling means temporarily providing the load control signal to determine the load demand when the load demand is less than the predetermined threshold.

Abstract: In accordance with various aspects of the present invention, a method and circuit for reducing power consumption of a wall plate system during idle conditions is provided. In an exemplary embodiment, a wall plate system is configured for reducing power during idle mode by disengaging at least one outlet from a power input. A wall plate system may include one or more outlets and one or more wall plate circuits, with power input connected to the outlets through the wall plate circuit(s). The wall plate circuit may include a current measuring system, a control circuit, and a switch. The current measuring system provides, through the switch, an output power signal that is proportional to the load at the outlet. If behavior of the current measuring system indicates that an outlet is drawing substantially no power from the power input, the switch disengages the power input from the outlet.

Abstract: When utility power has been lost at a controlled traffic intersection, an emergency interconnection circuit having no internal power of its own provides emergency electrical power to the traffic light controller by means of a portable generator. A maintenance technician can provide a portable generator and cord that plugs in to the emergency interconnection circuit. Upon throwing an internal switch, the interconnection circuit provides emergency generator power to operate the traffic light until utility power has been restored.

Abstract: In accordance with various aspects of the present invention, a method and circuit for reducing power consumption of a power module during idle conditions is provided. In an exemplary embodiment, a power module is configured for reducing power during idle mode by disengaging at least one power output from a power input. A power module may include one or more power outputs and one or more power module circuits, with power input connected to the power outputs through the power module circuit(s). The power module circuit may include a current measuring system, a control circuit, and a switch. The current measuring system provides an output power level signal that is proportional to the load at the power output. If current measuring system behavior indicates that a power output is drawing substantially no power from the power input, the switch disengages the power input from the power output.

Abstract: In accordance with various aspects of the present invention, a method and circuit for reducing power consumption of a power strip is provided. In an exemplary embodiment, a power strip is configured for reducing or eliminating power during idle mode by disengaging an outlet from power input. A power strip may include two or more outlets and two or more outlet circuits, with AC power input connected to the outlets through the outlet circuit(s), which may include a current transformer, a control circuit, and a switch. The current transformer secondary winding provides an output power level signal proportional to the outlet load. If behavior of the current transformer secondary winding indicates that the outlet is drawing substantially no power from the AC power input, the switch facilitates disengaging of the current transformer primary from the outlet.

Abstract: A multi-output power supply device includes a first power switch, a first switch controller that controls the first power switch, a transformer that transforms a power supplied from the first power switch, first through Nth output circuits connected to a secondary side of the transformer, where N is a positive integer greater than 1, a second power switch that switches the power output from one of the first through Nth output circuits, a second switch controller that controls the second power switch, a feedback circuit that feeds back output voltages of the first through Nth output circuits, and a feedback compensation circuit that performs a switching operation complementarily with the second power switch to compensate for a resistance of the feedback circuit. Accordingly, when power output to one of the output circuits is blocked, the multi-output power supply device can stably control the power output to the other output circuits.

Abstract: An exemplary electronic device includes a power module having an anode and a cathode; an audio module having an audio signal terminal and a ground terminal; an audio socket having an audio signal terminal and a ground terminal; a first relay-switch; a second relay-switch; and a power adapter having an audio plug, wherein the audio terminal of the audio socket is selectively connected to the anode of the power module and the audio signal terminal of the audio module via the first relay-switch, the ground terminal of the audio socket is selectively connected to the cathode of the power module and the ground terminal of the audio module via the second relay-switch, the audio terminal and the ground terminal of the audio socket are connected to the anode and cathode of the power module when the audio plug is plugged into the audio socket.

Abstract: A high current, light weight, thermally stable, bidirectional semiconductor switch module in an electrical system uses MOSFET technology in a back-to-back parallel architecture. The device comprises a controller which permits it to operate in high electrical noise environments. The device is further controlled to operate in either or both directions based on external events such as voltage changes associated with the electrical system and with vehicle operating conditions. The device operates at currents typically from a few amperes to 1000 amperes and may be used as a circuit breaker, over voltage switch, isolation switch, transient protection switch, and voltage converter. The device functions to replace the solenoids and relays associated with starter motors in a vehicle electrical system.

Abstract: A power reduction system includes a central server and a plurality of power reduction devices. The central server of the power reduction aggregation system includes: a network interface configured to transmit and receive information to and from a communication network; a power grid status module coupled to the network interface and configured to transmit a power status message to the network, via the network interface, toward at least two power reduction devices connected to the network; and a power savings compensation module configured to determine an aggregate compensation earned for providing an aggregate energy reduction induced by the at least two power reduction devices in response to receiving the power status message, and further configured to determine individual portions of the aggregate compensation associated with each of the at least two power reduction devices.

Abstract: The disclosed concept provides for a closed transition automatic transfer switch assembly having only two switch assemblies. This system utilizes a first switch assembly and a bypass switch assembly. The switch assemblies are each physically coupled to two power sources as well as the system load. The switch assemblies each include a power actuated contact arm. Each contact arm is coupled to, and in electrical communication with, the system load. Each contact arm may further be placed in one of the following configuration; a first configuration wherein the contact arm couples, and provides electrical communication between, the first source and the system load conductor, a second configuration wherein the contact arm couples, and provides electrical communication between, the second source and the system load conductor, and a neutral configuration wherein neither the first source nor the second source is coupled to, and in electrical communication with, the system load conductor.

Abstract: A transfer system includes an energy meter, a transfer switch, an automatic disconnect device, and a detector. The energy meter includes an input structured to receive a first power source, and a power output. The transfer switch includes a first input electrically connected to the power output of the energy meter, a second input, an output, and a mechanism structured to transfer one of the first and second inputs to the output of the transfer switch. The automatic disconnect device includes a first input structured to receive a second power source, a second input, an output, and a mechanism structured to electrically connect or disconnect the first input and the output of the automatic disconnect device responsive to the second input. The detector is structured to detect presence of the energy meter and output a corresponding signal to the second input of the automatic disconnect device.

Abstract: A power and signal distribution system for the building interior and a method for operating a power and signal distribution system for the building interior are provided. The system includes a plurality of conductors adjacent to at least one surface of a plurality of support members forming a grid. The system further includes at least one shunt switch in communication with at least two conductors, the shunt switch being configurable to selectively conduct power or signals between the at least two conductors.

Abstract: An electronic equipment includes: a data transmission unit that transmits or receives content data to or from an external equipment; a power supply turned-on information acquisition unit that acquires power supply turned-on information concerning the external equipment; an information-on-manipulation acquisition unit that acquires information on a power supply turning-on manipulation; and a power supply state control unit that controls a power supply state into any of an off state, a standby state, and an on state, wherein when the power supply turned-on information concerning the external equipment with the power supply state set to the off state is acquired, the power supply state control unit changes the power supply state to the standby state; and when the information on the power supply turning-on manipulation with the power supply state set to the standby state is acquired, the power supply state control unit changes the power supply state to the on state.

Abstract: A system and method utilizing virtual switching in an electrical panel meter or multifunction device is provided. The virtual switching enables the meter or multifunction device to be upgraded or downgraded through a switching signal, by activating or deactivating multiple operative functions that are to be performed in the meter or multifunction device, such as operative functions for substation automation. Accordingly, when the upgrade or downgrade is necessary, the meter or multifunction device does not have to be replaced.

Abstract: In accordance with various aspects of the present invention, a method and circuit for reducing power consumption of a power module during idle conditions is provided. In an exemplary embodiment, a power module is configured for reducing power during idle mode by disengaging at least one power output from a power input. A power module may include one or more power outputs and one or more power module circuits, with power input connected to the power outputs through the power module circuit(s). The power module circuit may include a current measuring system, a control circuit, and a switch. The current measuring system provides an output power level signal that is proportional to the load at the power output. If current measuring system behavior indicates that a power output is drawing substantially no power from the power input, the switch disengages the power input from the power output.

Abstract: In accordance with various aspects of the present invention, a method and circuit for reducing power consumption of a wall plate system during idle conditions is provided. In an exemplary embodiment, a wall plate system is configured for reducing power during idle mode by disengaging at least one outlet from a power input. A wall plate system may include one or more outlets and one or more wall plate circuits, with power input connected to the outlets through the wall plate circuit(s). The wall plate circuit may include a current measuring system, a control circuit, and a switch. The current measuring system provides, through the switch, an output power signal that is proportional to the load at the outlet. If behavior of the current measuring system indicates that an outlet is drawing substantially no power from the power input, the switch disengages the power input from the outlet.