Abstract: A resonance-based DC-DC converter for converting a DC input voltage to a first DC output voltage (VOUT1) on a output conductor (9) includes an inductor (L) having a first terminal connected to a source (2) of a DC input voltage (VIN) and a second terminal coupled to a first conductor (4) and a capacitor (CRES) having a first terminal coupled to the first conductor. A first switch (SW1) is coupled between the resonance conductor and the output conductor to conduct inductor current (IL) into the output conductor during a first phase (Phase1). A second switch (SW2) is coupled between a second terminal of the capacitor and the output conductor to conduct inductor current through the capacitor into the output conductor (9) during a second phase (Phase2).

Abstract: A drive circuit may be configured to switch on an MOS transistor by precharging an input capacitance of the MOS transistor with a substantially constant amount of charge in a precharging phase, and charging the input capacitance with a controlled charging current after the precharging phase.

Abstract: A circuit is provided that includes a parasitic power circuit that powers a parasitic circuit. The parasitic power circuit derives a supply voltage from an external AC or other signal suitable for use as a communications signal. A PMOS transistor or transistors is utilized to enable a supply voltage capacitor to charge substantially to the same voltage as the channel voltage of the communications signal.

Abstract: A relay telemetry system enables an ion propulsion system to self-test the critical relay configuration prior to supplying high-voltage power to any thruster. This test detects whether any critical relay has failed to switch properly or is in the wrong configuration. In the test mode, an onboard computer initiates the application of a low-voltage test voltage (nominally 15 V) to the high-voltage circuits (when the high voltage is off) by a stimulus circuit. Sensing circuits detect the inputs and outputs of the system connections in response to this stimulus. If the test voltage appears on an input or output where it is not expected, then a relay fault has occurred and will be detectable in telemetry sent back to the onboard computer.

Abstract: A method and system are implemented to instantaneously detect a hot plugging of a video connector in a computer device by detecting a change in the electrical state of one ground pin of the video connector. The computer device comprises a video connector having at least two ground pins, a processing unit, and a hot-plugging detection circuit coupled between the processing unit and one of the ground pins of the video connector, wherein the hot-plugging detection circuit is configured to detect a hot plugging of the video connector based on a change in voltage potential of the ground pin.

Abstract: A portable electronic device is formed of a system circuit, a battery, a normally open switch, and a reset unit. The system circuit includes a processor. The normally open switch is electrically connected with the battery. The reset unit is electrically connected with the system circuit, the battery, and the normally open switch and includes a reset switch and a control circuit. The control circuit is electrically connected with the reset switch. When the normally open switch is continuously conducted, electric energy accumulated in the control circuit reaches a predetermined threshold potential to cut of the reset switch to further stop the battery from supplying electric energy for the system circuit.

Abstract: An apparatus for selectively switching a mode of operation of a detector, the apparatus comprising a detector configured for connection to a signalling terminal, switching means for configuring the detector to operate in one of sink mode or source mode and a voltage comparator, wherein the apparatus is configured to selectively switch to operate in sink mode or source mode based on a comparison of a voltage from the signalling terminal received at the voltage comparator with a threshold voltage.

Abstract: A transfer switch (104) transfers electric power provided to an electrical load (106) from a first power source to a second power source. The transfer switch (104) includes a coil arrangement that controls movement of a member to open or close a contactor of the first or second power source. The coil arrangement may be used with two voltage levels.

Abstract: By voltage sensors (CT1, CT2, and CT3), a voltage is detected in a primary side electric path (22) of a protective instrument (16) of a distribution board (11) into which commercial AC electric power is input, and secondary side electric paths (23 and 24) of the protective instrument (16) to which a branch breaker (21) is connected, respectively. Electric power is able to be supplied to the distribution board (11) side from a storage battery (13). By a control unit (33), the electric power is supplied to the distribution board (11) side from the storage battery (13) on the basis of a voltage detection by the voltage sensors (CT1, CT2, and CT3) only when the voltage is not detected in the primary side electric path (22) of the protective instrument (16).

Abstract: An electric power generation control system for a vehicle, which enables generation of electric power by a generator as much as possible while preventing an electrical component from being overheated by power generation by the generator. The electric power generation control system selectively switches a mode of the generator between first and second modes in which an instruction voltage is higher and not higher than an allowable voltage of a wire harness, respectively. A counter value is counted up in the first mode and down in the second mode. When the counter value has reached a higher limit value, the first mode is inhibited and the power generation mode is set to the second mode. This increase the proportion of an execution time period of the first, and accordingly, when a possibility of overheating the wire harness becomes high, the instruction voltage is lowered.

Abstract: In a method performed by a PoE system, a PSE provides data and operating voltage over Ethernet wires to a PD. Before the full PoE voltage is supplied, the PSE generates a low current signal received by the PD. A circuit in the PD, connected across its input terminals, has a characteristic analog response to the PSE signal corresponding to the PD's PoE requirements, such as whether the PD is a Type 1 or Type 2 PD. The circuit may be a certain value capacitor, zener diode, resistor, or other circuit. The PSE may generate a fixed current, fixed voltage, or time varying signal. Upon the PSE sensing the magnitude of the analog signal response at a particular time, the PSE associates the response with the PoE requirements of the PD. The PSE then applies the full PoE voltage in accordance with the PD's PoE requirements.

Abstract: A semiconductor device includes a semiconductor element including a first element portion having a first gate and a second element portion having a second gate, wherein the turning on and off of the first and second element portions are controlled by a signal from the first and second gates respectively. The semiconductor device further includes signal transmission means connected to the first gate and the second gate and transmitting a signal to the first gate and the second gate so that when the semiconductor element is to be turned on, the first element portion and the second element portion are simultaneously turned on, and so that when the semiconductor element is to be turned off, the second element portion is turned off a delay time after the first element portion is turned off.

Abstract: A power supply assembly which can drive a number of different devices at different voltages. A rack holds a number of breaker modules, and each breaker module can connect to one or many breakout boxes. The breakout boxes are keyed to the breaker modules, so that the breaker boxes will not be energized with power unless they are the proper voltage and/or configuration to receive that power. The coil of a contactor in the breaker module is powered by a key wire that is connected through specified pins in the breakout box. Therefore, no power is ever provided to the breakout box unless it is of the proper voltage configuration. In addition, feeder power to the power supply assembly is provided over bolted connections, without any wire connections between the power feed and the circuit breaker.

Abstract: A lavatory is provided. The lavatory includes at least one wash station, at least one electrically operated fixture associated with the wash station, a control system configured to control a flow of a fluid through the at least one electrically operated fixture, a power source selectively coupled to the control system, and a power management system coupled to the power source to control the power provided to the control system. The power management system includes a detector configured to monitor the output voltage of the power source, and a switch configured to electrically disconnect the power source from the control system when the output voltage of the power source drops below a predetermined level.

Abstract: A power source generation circuit includes a regulator circuit which receives an external power source voltage VDDA from an external power source, and generates a predetermined internal power source voltage on a given terminal VDD; and a charging circuit which connects the external power source and the given terminal when the external power source voltage VDDA supplied from the external power source is equal to or lower than a predetermined threshold voltage.

Abstract: A transceiver for use in an ultrasound system is provided. The transceiver is configured to operate in a transmit mode and a receive mode. The transceiver comprises a high voltage switch, a low voltage switch and a resistor coupled to the high voltage switch and the low voltage switch.

Abstract: Devices and methods for electrically decoupling a solar module from a solar system are described. In one embodiment, a solar system includes a string of a plurality of solar modules coupled with an inverter through a DC power line. An AC input is coupled with the DC power line. A device is also included and is configured to provide a closed circuit for one of the plurality of solar modules if an AC signal voltage from the AC input is present on the DC power line, and is configured to provide an open circuit for the one of the plurality of solar modules if no AC signal voltage from the AC input is present on the DC power line.

Abstract: Disclosed is an inverter having improved power conversion efficiency. The inverter (200) converts direct current power supplied from a plurality of direct current power supplies (V1, V2) having different voltages into alternating current power. The inverter (200) is provided with a control unit (20). The control unit (20) generates modified sine waves using a power supply voltage (E1) of the power supplied from the first direct current power supply (V1), a power supply voltage (E2) of the power supplied from the second direct current power supply (V2), and a potential difference (E1?E2) between the two power supply voltages. The control unit (20) generates the modified sine waves by controlling H bridge circuits provided for the direct current power supplies (V1, V2), respectively.

Abstract: There is described a method for establishing an NFC connection between a subscriber identity module (SIM) and an NFC device (RDR). The subscriber identity module (SIM) is connected to a telecommunications system (CELL_P) through contacts (VCC, RST, CLK, D+, GND, SWP, IO, D?) of the telecommunications system (CELL_P). The telecommunications system (CELL_P) comprises a chipset (CHP) and an NFC circuit (NFCC). The method comprises measuring the level of charge of a battery (BATT) powering the telecommunications system (CELL_P) with a battery gauge. Based on the measurement, the method selects the source for supplying power to the subscriber identity module (SIM) and configures the wiring of the subscriber identity module (SIM). The disclosure also relates, in particular, to a telecommunications system, to a computer program, and to a storage medium.

Abstract: This invention relates to a method, an apparatus, a computer program product and a system for a first serial and a second serial interface for connecting or disconnecting a power terminal of a first serial interface to a power terminal of a second serial interface based on a voltage level at an identification terminal of the second serial interface, wherein each interface comprising at least one data line and power supply line.

Abstract: A rotary support apparatus is provided that includes a rotation mechanism, a support mechanism, an object detector and a controller. The rotation mechanism is configured to rotatably support a supported body between a first position and a second position. The support mechanism is configured to support the supported body with at least a two stage support force at the first position. The object detector is configured to detect a person or an object. The controller is configured to control the support mechanism so as to switch the support force based on the results detected by the object detector.

Abstract: A sample cooling device for histological samples is connectable to a power network for supplying electrical voltage to the device. The sample cooling device comprises a measuring apparatus for measuring a magnitude of an input line voltage present at the sample cooling device, and a transformer having a primary coil that comprises at least three coil pickoffs, and a secondary coil. The sample cooling device further comprises a switching means that connects two of the coil pickoffs to the power network as a function of the magnitude of the input line voltage, so that a magnitude of an output voltage present at the secondary coil has a predefined or predefinable voltage value irrespective of the magnitude of the input voltage. A corresponding method for supplying electrical power to a sample cooling device for histological samples is also disclosed.

Abstract: A circuit includes a comparator unit and a switching network. The comparator unit is configured to receive a first voltage value, a second voltage value and a third voltage value of a voltage node, and to provide a control signal. The switching network includes the voltage node and is configured to operate in a first condition or in a second condition based on the control signal. Based on the first condition, the voltage node is configured to have a voltage value increase to the first voltage value.

Abstract: An electronic switch control system, including an alternating voltage source, an electronic switch, a load, a control circuit, an alternating voltage source being electrically associated to a first conduction terminal of the electronic switch, a second conduction terminal of the electronic switch being associable to a load, the load being associated to a second power terminal. The control circuit includes first, second and third electric potential terminals, and is arranged to command the electronic switch by way of a trigger terminal. The control circuit is electrically associated to a voltage regulator block that is electrically associable to the electronic switch by way of first and third electric contact terminals and first and second conduction terminals respectively, the voltage regulator block being arranged to provide a minimum electrical voltage (Vmin) to run the control circuit in at least a conduction instant of the electronic switch.

Abstract: A system and method are provided for managing energy usage that includes obtaining an allocated power value associated with a predetermined time period, metering at least one of consumed power and corresponding consumed energy to determine a consumed power value and a consumed energy value and prompting for a reduced load condition when the consumed power value exceeds the allocated power value. The system and method may further include obtaining a line voltage value, comparing the line voltage value to a threshold voltage value, and obtaining energy saving parameters that define a reduced voltage value. A reduced power value that corresponds to the reduced voltage value may be supplied, the reduced power value being supplied when the line voltage value exceeds the threshold voltage value.

Abstract: A router module is arranged in a housing of a smart television. The router module is externally connected to a modem for surfing the Internet. The router module is electrically connected to a micro processing unit of the smart television. Therefore, the smart television is connected to the Internet through the router module. A wireless transmission chip of the router module is configured to process Internet signals. An antenna module is configured to wirelessly transmit the Internet signals, so that wireless network is shared to outside.

Abstract: A method of transmitting signals applied for a loading control system, which includes a phase angle control module and a driving module, wherein the phase angle control module is electrically connected to an input interface. The method includes the following steps: A. switch the input interface from a first status to a second status; B. modify a voltage waveform of an AC power to make the voltage waveform have a delayed conduction angle in half of its wave period; C. check the delayed conduction angle of the voltage waveform; D. transmitting an electric signal to a loading according to the delayed conduction angle.

Abstract: A module for connecting (or coupling) and disconnecting (or decoupling) a photovoltaic panel (PV) to and from other PV panels in a string of PV panels. The module may include first circuitry for detecting when a voltage output by the PV panel (Vpanel) collapses, and second circuitry for disconnecting the PV panel from the panel string while preventing a transistor switching device (e.g. a power MOSFET) performing the disconnecting (decoupling) operation from entering the linear operating region. The combination of low-voltage detection in the first circuitry, and latching-switching in the second circuitry ensures that the power MOSFET is either fully turned on, coupling the PV panel to the panel string, or fully turned off, decoupling the PV panel from the panel string. The PV panel may be recoupled to the PV string through a connection-check mechanism that reengages the PV panel once Vpanel has returned to normal operating levels.

Abstract: The present invention relates to a system for controlling, measuring and monitoring the secondary electric power distribution grid with remote fraud and power theft detection, readings, power cuts-off, reconnection and client load control, besides continuous monitoring of the electric grid parameters, providing diagnostics on the status of the grid and public lighting from an assigned Command Central, located at the secondary bulbar of the distribution transformer, and Measuring Modules at clients installations.

Abstract: Systems and methods (“utility”) are provided for reducing the no-load (standby) power of power devices such as chargers for electronic devices and power converters for electronic devices. The utility may include a controllable switch that is operative to decouple circuitry of the power device from a power source under certain no-load conditions. In one embodiment, the utility provides a switch control module that is operative to sense when an electronic device is coupled to the power device, and in response, to control the switch to couple the power device to the power source. The switch control module may also be operative to detect a condition when the electronic device is no longer drawing power from the power device, and in response, to control the switch to decouple the power device from the power source.

Abstract: Some embodiments of an infusion pump system can include a controller in electrical communication with a pump device so as to provide selected dosages of a medicine to a user over a period of time. The infusion pump system can employ a number of power management techniques to reduce the likelihood current drain of a rechargeable battery of the infusion pump system.

Abstract: An apparatus and method for load sharing among N current supplies, where N>1. N current supply paths are coupled to corresponding N independent power sources, respectively. A system load is coupled to the outputs of the N current supply paths to receive N current supplies. There is a common current share bus configured to connect to the N current supply paths to provide a common current share signal, used to indicate the current contribution needed from each of the N current supply paths. In this configuration, each of the N current supply paths adjusts an adjustable voltage drop between its power source and the current supply it provides to the system load in accordance with the common current share signal so that the current supplied from each current supply path is consistent with the common current share signal.

Abstract: The invention is related to an apparatus comprising a switch configured to variably connect a device circuit of an electronic device to a battery, a cutout control circuit connected to the switch and comprising a supply power input and a cutout activation input, wherein the cutout control circuit is configured to turn the switch on when a supply voltage is connected to the supply power input. The invention is further related to a drug delivery device for delivering at least one drug agent comprising an apparatus of the aforementioned kind, a charging connector for a drug delivery device of the aforementioned kind and a method for manufacturing a drug delivery device of the aforementioned kind.

Abstract: An apparatus and method for electrical transport refrigeration, including generating a direct current (DC) voltage; storing the DC voltage in a high voltage DC storage; sensing a current requirement from an electrical load (e.g., a refrigeration unit), wherein the current requirement is proportional to a power requirement of the electrical load; transporting the DC voltage from the high voltage DC storage to an inverter, wherein the DC voltage is in an amount consistent with the power requirement; converting the DC voltage to an inverted AC voltage: determining a voltage in a voltage path; and triggering a switch to connect the electrical load to the voltage path it the voltage is the inverted AC voltage. And, the apparatus and method may include connecting a battery to an operating control unit of the refrigeration unit to enable a soft start of a compressor. In one example, the apparatus is a tractor-trailer system.

Abstract: An integrated circuit arrangement (100, 200, 600) has a first circuit part (102, 202, 602) which can be supplied with a first supply voltage (106, 206, 606), and a second circuit part (104, 204, 604) which can be supplied with a second supply voltage (108, 208, 608). The first circuit part and the second circuit part are arranged in a manner spatially separate from one another. The first circuit part has a first conduction element (110, 210, 310, 410, 610), and the second circuit part has a second conduction element (112, 212, 312, 412, 612). The integrated circuit arrangement also has a third conduction element (114, 214, 314, 414, 614), the third conduction element being arranged between the first conduction element and the second conduction element in such a manner that the third conduction element is arranged adjacent to the first conduction element and the third conduction element is also arranged adjacent to the second conduction element.

Abstract: Power systems, electronic impedance controlled switches and controls, and methods of supplying power to a load include features to maximize safe operating area (SOA) of an electronic impedance switch without exceeding its SOA. The power system may be a vehicle electrical power system including a DC power supply battery and a boost converter.

Abstract: A PhotoVoltaic (PV) panel bypass switching arrangement includes first and second switches. The first switch is to be coupled between a power system and a first end of a circuit path of the PV panel in which a PV cells are connected, and is controllable to connect the first end of the circuit path to a power system and to disconnect the first end of the circuit path from the power system. The second switch is to be coupled between (i) a point between the first switch and the power system and (ii) a point between a second end of the circuit path and the power system, and is controllable to open and close a bypass circuit path that bypasses the circuit path. The first and second switches are controlled based on a determination as to whether the circuit path of the PV panel is to be bypassed.

Abstract: A state change device may be electrically connected to a switched receptacle, or to both the switched and unswitched receptacles, of an outlet. The state change device may generate a change of state signal when power is applied to, or removed from, the switched receptacle. The state change device may wirelessly communicate the signal. The state change device may include a load control circuit that may be configured to control the amount of power delivered to an electrical load that is electrically connected to the state change device. The state change device may receive commands directed to the load control circuit. The state change device may be deployed in a load control system and may operate as a control entity, such that the state change device may issue commands to one or more load control devices, responsive to the application or removal of power at the switched receptacle.

Abstract: A method and apparatus for multiplexing an electrical contact interface between two electrical devices uses a time differentiated enablement of two or more different circuit elements in a first electrical device that are accessed via the multiplexed contact by a second electrical device. A timing control circuit in the first electrical device enables and disables circuit elements in the first electrical device coupled to a shared information contact over time. The second electrical device interacts with a first circuit element during an initial period upon connection to the first electrical device, and then interacts with a second circuit element after the initial period.

Abstract: Processes, machines, and articles of manufacture that may serve to enable the detection or determination of alternating line voltages from an alternating power source, such as the power grid, are provided. This automatic sensing may be useful when connections are made to the power grid, such that when connections are made, the connections may be configured to be compatible with the available power source. This automatic sensing may also be useful if power sources change characteristics over time or if devices may be connected to different power sources over time.

Abstract: An apparatus and method for connecting electrical units including determining that a first electrical connection is mated with a first electrical receptacle at a first point of connection; determining that a second electrical connection is mated with a second electrical receptacle at a second point of connection, wherein the first second point of connection and the second point of connection are at opposite ends of an electrical cable; initiating delivery of voltage through the electrical cable; monitoring the voltage level of a source that outputs the delivery of the voltage; and comparing the voltage level of the source with a predetermined value to generate a comparison value.

Abstract: A switch controller is provided that uses one or more capacitors to generate a slow turn on/slow turn off switch control signals to suppress audible switching noise in an audio switch. In some embodiments, an analog inverter and a capacitor are used to generate the switch control signals, while in other embodiments two capacitors are used to generate the switch control signals. To conserve power between switching states, routing logic is provided that ties the switch control signals to respective voltage rails and disables selected portions of the switch controller.

Abstract: Aspects of a method and system for a connection system operable to sink and source supply power are provided. In this regard, one or more circuits within a connector that resides in a networking enabled device may be operable to determine whether the networking enabled device is to operate as a powered device or as a power supplying device. Based on a result of the determination, the one or more circuits may be operable to couple power pins of the connector to either a first power rail of the networking enabled device or a second power rail of the networking enabled device. The determination of whether the networking enabled device is to operate as a powered device or as a power supplying device may be based on a voltage on a sense pin of the connector and/or based on mechanical characteristics of the connector.

Abstract: A method an apparatus for a power switch acceleration scheme during wakeup is disclosed. In one embodiment, an integrated circuit includes at least one power gated circuit block. The power gated circuit block includes a virtual voltage node from which a voltage is provided to the circuitry of the block when active. Power switches are coupled between the virtual voltage node and a corresponding global voltage node. When the power gated circuit block is powered on, power switches are activated sequentially. The rate at which power switches are activated is increased as the voltage on the virtual voltage node increases. Sequentially activating the power switches may prevent an excess of current inrush into the power gated circuit block. The increase in the rate at which power switches are activated when the voltage on the virtual voltage node is at least at a certain level may allow for a faster wakeup.

Abstract: A device includes a load sensor configured to measure a load demand that indicates that a load is operating in an active state or an inactive state. A load switch is configure to selectively supply electric energy to the a load in accordance with a load control signal. A controller in communication with the load switch and the load sensor is configured to compare the load demand to a load threshold, generate the load control signal based at least in part on the load demand relative to the load threshold, and transmit the load control signal to the load switch when the load demand is substantially equal to or greater than the load threshold. The controller is further configured to determine the load threshold based at least in part on the load demand when the load is operating in either the active state or the inactive state.

Abstract: An electrical apparatus is provided which can reduce, when it is shipped in a state in which a secondary battery is built therein, power consumption before a user starts to use the electrical apparatus first. The electrical apparatus includes a secondary battery, a load which operates by power supplied from the secondary battery, and a switch element disposed between the secondary battery and the load. The switch element remains in an off state until a user starts use of the electrical apparatus.

Abstract: The disclosure relates to a safety device for a photovoltaic system for feeding into a power supply system, that includes at least one input for connection to a PV generator, at least one output for connection to an inverter, and a switching element for de-energizing the at least one output. The safety device includes an evaluating unit configured to switch the switching element based on a low-frequency signal at the at least one output. The disclosure also relates to a method for operating such a safety device.

Abstract: In one embodiment, a brownout recovery circuit configured for a switch power supply circuit with a first switch, can include: (i) an under-voltage detection circuit that activates a detection signal when a bootstrap capacitor is not in an under-voltage state, and deactivates the detection signal when the bootstrap capacitor is in the under-voltage state; (ii) a logic circuit that generates a first control signal according to a main control signal from the switch power supply circuit and a second switch state; (iii) a first control circuit that generates a first switch signal according to the detection signal, and controls the first switch thereby; and (iv) a second control circuit that receives the first control signal, and generates a second switch signal to control the second switch thereby.

Abstract: An electronic device is provided that may include an input port to couple to an external device, and a universal power interface to determine a type of the external device connected to the input port based at least on a voltage of a voltage supply line. The universal power interface may provide a power delivery path based on the determined type of the external device.

Abstract: Aspects of a method and system for a connection system operable to sink and source supply power are provided. In this regard, one or more circuits within a connector that resides in a networking enabled device may be operable to determine whether the networking enabled device is to operate as a powered device or as a power supplying device. Based on a result of the determination, the one or more circuits may be operable to couple power pins of the connector to either a first power rail of the networking enabled device or a second power rail of the networking enabled device. The determination of whether the networking enabled device is to operate as a powered device or as a power supplying device may be based on a voltage on a sense pin of the connector and/or based on mechanical characteristics of the connector.