Abstract: A hybrid solar load controller. The controller determines values to carry out what is referred to herein as “best effort” pumping during sun hours, understand its progress, and then “finish the job” with AC power after sun hours have concluded, while taking fullest advantage of pump affinity when on paid-power pump. In embodiments, the pump can be a water pump for a pool, and a goal can be set as a total volumetric goal. The goal can also be a fill level for a container.

Abstract: Some variations provide an atomic vapor-cell system comprising: a vapor-cell region configured with vapor-cell walls for containing an atomic vapor; and a coating disposed on at least some interior surfaces of the walls, wherein the coating comprises magnesium oxide, a rare earth metal oxide, or a combination thereof. The atomic vapor-cell system may be configured to allow at least one optical path through the vapor-cell region. In some embodiments, the coating comprises or consists essentially of magnesium oxide and/or a rare earth metal oxide. When the coating contains a rare earth metal oxide, it may be a lanthanoid oxide, such as lanthanum oxide. The atomic vapor-cell system preferably further comprises a device to adjust vapor pressure of the atomic vapor within the vapor-cell region. Preferably, the device is a solid-state electrochemical device configured to convey the atomic vapor into or out of the vapor-cell region.

Abstract: An electronic device and a method for management of power supply in enclosed space is provided. The electronic device determines first information indicating a disruption in a main power supply of a first enclosed space. The electronic device determines second information which indicates a power consumption of one or more electrical appliances in the first enclosed space based on the determined first information. The electronic device further determines third information associated with one or more secondary power supplies in the first enclosed space. The electronic device further applies a trained ML model on the determined first information, the second information, and the third information and determines scheduling information based on the application of the ML model. The electronic device further controls the one or more secondary power supplies to power the one or more electrical appliances, based on the determined scheduling information.

Abstract: A manufacturing method for an electronic component that includes a providing a base member on a first main surface of a first board, sandwiching the base member and a joining member paste between the first main surface of the first board and a transfer main surface of a transfer board, forming a joining member joined with the base member while the joining member paste is sandwiched by the first board and the transfer board, and peeling off the transfer board from the joining member joined with the base member.

Abstract: Disclosed is a direct current power supply. The direct current power supply includes a voltage output defining a voltage rail and a ground. The direct current power supply includes a holdup capacitor operable to conduct with the voltage output. The direct current power supply includes a redundant power supply connected in series with the holdup capacitor between the voltage rail and the ground of the voltage output to provide the voltage output. The direct current power supply includes a first switch disposed between the holdup capacitor and the redundant power supply operable to create a conductive path between the holdup capacitor and the redundant power supply.

Abstract: Systems and apparatuses include a non-transitory computer readable media having computer-executable instructions embodied therein that, when executed by a circuit of a power system, causes the power system to perform functions to activate and deactivate routes.

Abstract: A server that manages energy of a power grid by using a plurality of energy storage resources includes a loss obtaining unit and a selector. The loss obtaining unit obtains for each of the plurality of energy storage resources, energy loss including retention loss and input and output loss, the energy loss being caused in storing energy in each energy storage resource. When surplus electric power occurs in the power grid, the selector selects at least one energy storage resource for storing surplus electric power from among the plurality of energy storage resources based on the energy loss caused in storing surplus electric power.

Abstract: Techniques for managing an off-grid power system include executing update requests for an off-grid power system that is communicably coupled to an energy management system by determining an amount of stored energy in energy storage devices in response to at least one update request, determining an amount of electrical power generatable by renewable energy power systems in response to another update request, determining a predicted reliability of at least a portion of the energy storage devices and the renewable energy power systems in response to another update request, and determining an amount of electrical power for a remote facility that is electrically coupled to the off-grid power system in response to another update request.

Abstract: A method using a phase locked loop (PLL) includes receiving a reference frequency. The method further includes generating a control signal based on the reference frequency. The method further includes adjusting an output signal based on the control signal. Adjusting the output signal includes operating a plurality of switches in response to the control signal, wherein operating the plurality of switches comprises selectively electrically connecting a first ground plane to a first floating plane, wherein the first floating plane is between the first ground plane and the signal line, and the first floating plane is a same distance from a substrate as the first ground plane.

Abstract: A power conditioning system (PCS) includes: a grid blackout determiner, a voltage controller, and a processor electrically connected to the grid blackout determiner and the voltage controller. The processor is configured to identify a state of a grid as a blackout state or an unstable state based on at least one of an amplitude or a frequency of a voltage of the grid that is detected by the grid blackout determiner, control the voltage controller to adjust, based on the identified state of the grid being the blackout state or the unstable state, load voltage input to the voltage controller to be equal to a command voltage, and adjust, based on the identified state of the grid being the blackout state or the unstable state, a first frequency of the detected voltage of the grid to a second frequency that is different from the first frequency.

Abstract: A method for feeding electrical power into an electrical supply network using an inverter-controlled infeed unit is provided. The infeed unit has an inverter arrangement with a plurality of inverters to generate an output power and feed same into the network. Each inverter has an associated isolating switch to galvanically isolate the respective inverter from the network. Each inverter has a circuit composed of switches to generate an output current using pulsed actuation. Each inverter generates a variable partial power, and the output power is a sum of all partial powers. Depending on the output power, one or more of the inverters are operated as active inverters that respectively generates a partial power. The other inverters are operated as passive inverters that do not generate a partial power. One or more of the passive inverters are operated as blocked inverters and remain galvanically connected to the network.

Abstract: A micro-electrical-mechanical system (MEMS) resonator device includes at least one functionalization material arranged over at least a central portion, but less than an entirety, of a top side electrode. For an active region exhibiting greatest sensitivity at a center point and reduced sensitivity along its periphery, omitting functionalization material over at least one peripheral portion of a resonator active region prevents analyte binding in regions of lowest sensitivity. The at least one functionalization material extends a maximum length in a range of from about 20% to about 95% of an active area length and extends a maximum width in a range of from about 50% to 100% of an active area width. Methods for fabricating MEMS resonator devices are also provided.

Abstract: A low power relaxation oscillator circuit includes, in one embodiment, a first comparator for comparing voltages at first and second inputs, respectively, a first capacitor coupled to the first input of the first comparator, and a first circuit configured for charging the first capacitor to a first voltage. The first voltage is related to a propagation delay of the first comparator.

Abstract: Various embodiments include a method for controlling an exchange of energy in an energy system having multiple energy subsystems each connected to one another for the purpose of exchanging energy, the method comprising: receiving respective supply data at a control center from the energy subsystems, wherein the supply data comprise respective remuneration conditions of the applicable energy subsystem for receiving and/or providing energy; determining optimum conditions on the basis of the supply data of the energy subsystems; and controlling the exchange of energy between the energy subsystems on the basis of the optimum conditions with the control center.

Abstract: A photovoltaic power system includes a DC/AC inverter circuit, N DC/DC converter circuits that are located at a previous stage of the DC/AC inverter circuit and that are respectively connected to photovoltaic strings, and a controller connected to the DC/AC inverter circuit and the N DC/DC converter circuits. The controller is configured to: perform MPPT control on n DC/DC converter circuits, and perform CPG control on (N?n) DC/DC converter circuits. In the two control manners, a fast and accurate power reserve or limit of a photovoltaic string inverter with any illumination intensity and ambient temperature can be implemented, and fluctuation of a DC bus voltage and AC output power of the photovoltaic string inverter can be eliminated. Control on a virtual synchronous generator of the photovoltaic string inverter is implemented, and a lifespan of the photovoltaic string inverter is prolonged, without a need to add an energy storage element.

Abstract: A system and method for providing a backup power supply.

Abstract: Embodiments of the present disclosure provide an electrical apparatus, a power supply system having the same and a method of manufacturing the electrical apparatus. The electrical apparatus includes a detecting circuit coupled to a generator and configured to detect a frequency of the generator. The electrical apparatus also includes a controller coupled to the detecting circuit and configured to receive a first signal indicating the detected frequency and adjust the frequency of the generator in response to determining that the detected frequency is out of a predetermined frequency range. In this way, an actively controlling of the changing rate of the power to and from generator may be achieved, if the generator frequency exceeds the configured limits.

Abstract: A system and a method of powering an external device with a vehicular battery system allow a user to charge electrically-powered devices with the electrical power source of his or her vehicle. The system includes an electrically-driven vehicle which includes a high-voltage battery. The system further includes a power modifier, an auxiliary battery, at least one external device, at least one on/off relay, and a user controller. The power modifier modifies the high-voltage DC drawn from the high-voltage battery to safely charge the auxiliary battery. The auxiliary battery stores electrical power. The external device may be any electrically-powered device. The on/off relay allows a user to turn the system on or off when desired. The user controller is communicably coupled to the on/off relay through a relay wireless communication module. The user controller allows a user to remotely operate the on/off relay and, thus, remotely turn the system on or off.

Abstract: A phased-array MASER detector for synthetic aperture interferometric three-dimensional imaging. The detector elements, for example 102-106 zero bias Schottky detector diodes with sufficient sensitivity to reliably detect various values of MASER radiation, are arranged in layers offset in three dimensions. The phased-array MASER detector is particularly useful for detecting characteristics in a biological object using low energy (2-10 Watts), coherent MASER radiation. MASER intensity data of an interferometric pattern is collected by the detector array, is deconvolved, and is used to generate three-dimensional energy activity maps for a given time slice or on a time-shifting basis.

Abstract: The present technology includes a replica circuit and an oscillator including the same. The replica circuit includes a first terminal to which a replica voltage having a positive voltage is supplied, a second terminal to which a ground voltage is supplied, a replica main circuit connected between the first terminal and the second terminal and configured to form a first current path in response to the replica voltage, and a replica sub circuit connected in parallel with the replica main circuit between the first terminal and the second terminal and configured to form a second current path in response to the replica voltage. A current flowing through the second current path having a replica sub current amount is less than a current flowing through the first current path having a replica main current amount.