Abstract: A light emission device includes: a base part; one or more semiconductor laser devices disposed on an upper surface of the base part; a frame body having a flat region that is above the lower surface of the base part and outside a region in which the one or more semiconductor laser devices are disposed, the frame body having a throughhole that extends from an upper surface to a lower surface of the flat region; an electrical conduction member disposed on a lower surface side of the flat region, the electrical conduction member including on an upper surface thereof a first conductive region and an insulative region, such that the first conductive region and the insulative region are located in a region defined by the throughhole of the frame body in a top plan view; and wiring having an end that is bonded to the first conductive region.

Abstract: A surface emitting laser includes a substrate, a plurality of surface emitting laser elements on a first surface of the substrate, a first electrode electrically connected to a first conductive semiconductor of the surface emitting laser elements; and a second electrode electrically connected to a second conductive semiconductor of the surface emitting laser elements. Each of the surface emitting laser elements includes a first reflecting mirror on the substrate; an active layer on the first reflecting mirror; and a second reflecting mirror on the active layer. When a first contact region in which the first electrode and the first conductive semiconductor are connected to each other is on the first surface or in the first conductive semiconductor of the surface emitting laser elements. The first electrode is electrically connected to the light emitting units. The second electrode is electrically connected to each of the light emitting units.

Abstract: A method for fabricating an ellipsoidal or semi-ellipsoidal semiconductor structure includes steps of providing a semiconductor substrate and fabricating an ellipsoidal or semi-ellipsoidal cavity structure on the semiconductor substrate. The cavity structure encompasses a seed surface of the semiconductor substrate. The method includes a further step of growing the ellipsoidal or semi-ellipsoidal semiconductor structure within the ellipsoidal or semi-ellipsoidal cavity structure from the seed surface of the semiconductor substrate. Fabricating the cavity structure includes arranging a droplet comprising a sacrificial material on the semiconductor substrate, forming a layer of a coating material on the semiconductor substrate and the droplet, and selectively removing the sacrificial material of the droplet to expose the cavity structure.

Abstract: A surface-emitting semiconductor laser includes a first emission region that outputs first light, and a second emission region that is provided separately from the first emission region, includes a phase shift section, and outputs second light. A far field pattern of the first light and a far field pattern of the second light are different from each other.

Abstract: A vertical-cavity surface-emitting laser (VCSEL) includes a semiconductor substrate, a first reflector, a second reflector, a first electrical contact, a second electrical contact, and a through-hole via. The first reflector is disposed on a first side of the semiconductor substrate and the second reflector is disposed between the first reflector and an emission side of the VCSEL. The first and second electrical contacts are disposed on a second side of the semiconductor substrate, opposite the first side, for mounting the VCSEL to a transparent substrate. The through-hole via electrically connects the second electrical contact to the second reflector.

Abstract: A photonic circuit with a hybrid III-V on silicon or silicon-germanium active section, that comprises an amplifying medium with a III-V heterostructure (1, QW, 2) and an optical wave guide. The wave guide comprises a coupling section (31) facing a central portion of the amplifying medium, a propagation section (34, 35) and a modal transition section (32, 33) arranged between the coupling section and the propagation section. In the modal transition section, the optical wave guide widens progressively from the propagation section towards the coupling section.

Abstract: A multi-channel laser source, including: a bus waveguide coupled, at an output end of the bus waveguide, to an output of the multi-channel laser source; a first semiconductor optical amplifier; a first back mirror; a first wavelength-dependent coupler, having a first resonant wavelength, on the bus waveguide; a second semiconductor optical amplifier; a second back mirror; and a second wavelength-dependent coupler, on the bus waveguide, having a second resonant wavelength, different from the first resonant wavelength. In some embodiments the first semiconductor optical amplifier is coupled to the bus waveguide by the first wavelength-dependent coupler, which is nearer to the output end of the bus waveguide than the second wavelength-dependent coupler, the second semiconductor optical amplifier is coupled to the bus waveguide by the second wavelength-dependent coupler, and the first wavelength-dependent coupler is configured to transmit light, at the second resonant wavelength, along the bus waveguide.

Abstract: A semiconductor optical amplifier is configured to provide output light with reduced optical chirp when pulsed. The semiconductor optical amplifier includes a waveguide and a diffraction grating positioned between a first semiconductor layer and a second semiconductor layer. The semiconductor optical amplifier emits output light through a two-dimensional surface of the first semiconductor layer or the second semiconductor layer. The diffraction grating may be a 1D or 2D photonic crystalline structure that directs light to the waveguide to facilitate amplification through constructive interference. The semiconductor optical amplifier is configured to support narrow line widths and single mode laser operations.

Abstract: A power panel of an electrical distribution system including a bus stack with a plurality of conductive bars spaced from one another and a plurality of insulators, an electrical accessory is coupled to the plurality of bus bars, and each insulator includes a main body and a safety feature that extends from the main body. The safety features from adjacent insulators extend towards one another to define a gap sized to prevent insertion of a foreign object therein. The gap is further sized to permit insertion there through of a conductive component to establish an electrical connection between multiple bus bars and the electrical accessory.

Abstract: Disclosed are an installation device for air gap arrester and installation method thereof. The installation device includes a handheld pole, a wire clamping mechanism provided at the bottom end of the handheld pole for clamping a split wire, a tray provided on the handheld pole for lifting the arrester, an insulating rope provided on the tray, a fixing rope provided on the handheld pole for temporarily fixing the arrester, and a scale provided on the handheld pole for measuring the distance from the bottom end of the arrester to the bottom end of the handheld pole. The installation device for air gap arrester and installation method thereof have high installation efficiency.

Abstract: Apparatus and methods pertaining to moving a train rig between locations associated with corresponding different wellsites. Equipment carried by the train rig is operable in conjunction with forming wells each extending beneath a corresponding one of the wellsites. An adjustable swing arm mechanically and electrically connected to the train rig comprises a medium-voltage (MV) cable. The adjustable swing arm extends from the train rig to connect the MV cable to one of a plurality of MV electrical hubs each electrically connected to a remote MV electrical power source via, at least, MV electrical lines suspended above the wellsites. A piece of equipment carried by the train rig is energized by MV electrical power delivered via the adjustable swing arm, and then operated in conjunction with the subterranean well formation.

Abstract: An electrical user comprising: —a recessed box (7); —a frame (2) applied to the box (7); —a cover (3) for covering said frame (2). The cover (3) is removable from the frame (2) and comprises: i) a rechargeable electric battery (32); ii) an electrical device (31).

Abstract: A cover-side peripheral wall includes an inner wall, which serves as a first wall, and a bent wall. The inner wall is located between an inner wall and an outer wall of a body-side double-wall. The bent wall extends inward and downward from an inner surface of the inner wall. The bent wall has a proximal end that is located upward from an upper end of the inner wall of a body-side peripheral wall. The bent wall further includes a portion between a distal end and the proximal end that is located inward and downward from the upper end of the inner wall of the body-side peripheral wall.

Abstract: An electrical connection box includes: a frame accommodating electronic components; and a lower cover located below the frame and closing a lower opening. The frame includes double walls including a first outer wall and a first inner wall and formed along the lower opening. The lower cover includes: a second outer wall located between the first outer wall and the first inner wall in a placement state; and a second inner wall formed inside the second outer wall and along the second outer wall. The first inner wall includes: a body formed in such a manner that a lower end is located between the second outer wall and the second inner wall in the placement state; and a bulge protruding toward the first outer wall from an opposed surface, being opposite to the first outer wall, of the body.

Abstract: A bracket system for mounting an electrical box and other components to a ceiling structure can include a support bar and a mounting bracket. The mounting bracket can be configured to receive an end of the support bar and selectively secure the support bar at any of a plurality of positions relative to the mounting bracket.

Abstract: The present disclosure provides a termination band and a method of manufacturing the termination band, which includes a strap and a head. When secured, the head comprises an upper wall, lower wall and opposed side walls formed as a loop with the strap extending therefrom. The termination band is therefore formed as a two-piece component, rather than a single piece as in the prior art. Advantageously this enables the strap and the head to be formed from stainless steel strip having the same width as the head and the strap. It is therefore not necessary to trim the material of either part, hence there is significantly reduced material wastage when forming the termination band. In addition, because the strap and head are both initially in the form of straight-sided elongate strips prior to the folding or joining operations, both parts may be easily edge finished and/or surface finished.

Abstract: A semiconductor circuit has a primary circuit that causes the light emitting element to emit light in accordance with a current flowing through a control target, and that causes the light emitting element to emit light brighter when an overcurrent flows through the control target; and a secondary circuit that is electrically insulated from the primary circuit, outputs a voltage according to a light emission amount of the light emitting element, and outputs an overcurrent detection signal indicating the brighter light emission in the light emitting element.

Abstract: A detection scheme for temporary overvoltages and/or ground fault overvoltages in electric power systems is described. Current passing through a surge arrestor component of the power system is monitored. An algorithm for identifying one or more frequency components of the measured current signal is performed to screen out unwanted harmonics. In some embodiments, this is a frequency domain analysis. The frequency component(s) of the current signal is then compared to a calculated pickup current or pickup voltage of the system to determine if system protection steps should be undertaken.

Abstract: One example includes a power generator protection system. The system includes a circuit breaker configured, when triggered, to provide an open circuit in a power line configured to conduct a current between a power grid point-of-interconnect (POI) and a power generator system. The system also includes a programmable controller configured to monitor the current and to generate a dynamic current threshold based on the current. The programmable controller can further be configured to compare the current with the dynamic current threshold and to trigger the circuit breaker based on a difference of the current relative to the dynamic current threshold to set an arc flash incident energy level of the power generator system at or below a predetermined safety level.

Abstract: A mobile application including a motive power circuit including a power storage device and an electrical load; a power distribution unit (PDU) electrically interposed between the power storage device and the electrical load, wherein the PDU includes a breaker/relay positioned on one of a high side and a low side of the power storage device; wherein the breaker/relay includes: a fixed contact electrically coupled to the power bus; a movable contact selectively electrically coupled to the fixed contact; an armature operationally coupled to the movable contact; a first biasing member biasing the armature into one of the first position or the second position; and a means for selecting a down force value of the movable contact, thereby providing for a physical opening response of the breaker/relay in response to a selected current value.

Abstract: In general, according to one embodiment, a protection circuit includes first and second power lines, first and second controllers, a first transistor, and a detector. The first controller includes a first resistor element, a capacitor, first, second, and third inverters. The second controller includes third transistor. One end of the third transistor is coupled to the second power line. The other end of the third transistor is coupled to each of the output end of the first inverter and the input end of the second inverter.

Abstract: There is provided a power conditioning circuit including positive and negative power input nodes. An inductor includes a first terminal connected to a positive power input node and a second terminal connected to a positive power output node, the inductor allowing the voltage at the positive power output node to be modulated by data that is sent through a communication interface. A first node is present between the second terminal of the inductor and the positive power output node, and a clamping circuit is connected at the first node to a second node. The clamping circuit is configured to clamp a voltage increase across the inductor to less than a maximum increase. The second node is configured to be continuously held at a voltage higher than the voltage of the first terminal of the inductor.

Abstract: A power flow control device intended to be used in a mesh network. The device includes a first voltage source connected between a first terminal (B1) and a third terminal (B3). A second voltage source is connected between a second terminal (B2) and the third terminal (B3). A current source is connected alternately to the first voltage source and the second voltage source and configured to ensure a transfer of energy between the first voltage source and the second voltage source. A switching means is arranged to allow the current source to be connected alternately in parallel with the first voltage source or in parallel with the second current source.

Abstract: A method for state estimation of a distribution network comprises: (a) obtaining measurements from phasor measurement units (PMUs) placed at buses in the distribution network; (b) constructing a quotient gradient system (QGS) based on a constraint set H that relates the measurements to state variables of the distribution network; (c) integrating the QGS to reach a steady state; (d) identifying one or more of the state variables whose measurement residuals violate a measurement residual constraint in the constraint set H; (e) integrating a reconstructed QGS, which is reconstructed based on the constraint set H by setting the identified one or more state variables to values of corresponding PMU measurements; (f) iterating steps of (d) and (e) until no measurement residuals violate the measurement residual constraint, to thereby obtain the state estimation; and (g) reporting the state estimation to a control system during real-time monitoring of the distribution network.

Abstract: A system operation support device in a power system stabilizes the power system and has a predicted accident time system state calculation unit that receives measured data, a system topology, and a target accident type as inputs, and calculates a system state and a predicted accident time system state. A control menu calculation unit receives the results of the predicted accident time system state as inputs and calculates a control menu. A restoration control means calculation unit receives the result of the control menu calculation as an input and calculates a restoration control procedure. A restoration prevention control procedure calculation unit receives the result of the restoration control and a target restoration time parameter as inputs and performs a power generator output adjustment time simulation, a necessary prevention control amount calculation, and a prevention control procedure calculation. A display unit displays the restoration control procedure and the prevention control procedure.

Abstract: A method for operating a wind turbine generator connected to a power network to account for recurring voltage faults on the power network caused by automatic reclosure of at least one circuit breaker following a short-circuit. The method comprises: identifying a deviation of voltage level of the power network from a normal operational voltage level of the network; determining that the identified deviation fulfils criteria for automatic reclosure; and operating the wind turbine generator in a recurring fault mode if automatic reclosure criteria are fulfilled. When operating the wind turbine generator in recurring fault mode, the method comprises: monitoring the recovery of the voltage level from the deviation; categorising the recovery of the voltage as one of at least a strong recovery or a weak recovery; and implementing a ride-through protocol according to the category of recovery.

Abstract: A method and system for locally controlling delivery of electrical power along a distribution feeder. For a feeder segment in the distribution feeder the method includes: obtaining an actual voltage magnitude at an upstream node and at a downstream node of the feeder segment, and a real power value at the upstream node; setting a target voltage phasor at the downstream node as a value when a power flow across the feeder segment is maintained, and when equal reactive power is injected at the upstream and downstream nodes that consumes all the reactive power in the feeder segment; and adjusting operation of the at least one controllable reactive power resource so that the actual voltage magnitude at the downstream node moves towards a target voltage magnitude of the target voltage phasor.

Abstract: The present disclosure relates to controlling a capacitor bank using current measurements from different current sensors depending on the power flow direction. For example, the system may perform capacitor bank control operations using current measurements from a first current sensor coupled to the power line between an initial source and the capacitor bank when power is flowing in a first power flow direction on the power line. The system may determine that power flow on the power line has changed from flowing in the first power flow direction to flowing in a second power flow direction from an updated source, different from the initial source. The system may, upon detecting the change in the power flow direction perform control operations of the capacitor bank using current measurements from a second current sensor between an updated source and the capacitor bank.

Abstract: A method for operating a power generation system that supplies real and reactive power to a grid includes receiving a reactive power demand made on the power generation system at an operating state of the power generation system and a grid state. Further, the method includes decoupling reactive power control and voltage control between a generator and a reactive power compensation device so as to reduce an oscillatory response of a reactive power output from the reactive power compensation device and the generator. Moreover, the method includes operating, via a device controller, the reactive power compensation device in a reactive power control mode to generate at least a portion of the reactive power demand.

Abstract: A reactive power control method, a reactive power control device, and a reactive power control system are provided. The device includes: a communication interface, configured to receive a reactive power requirement command; an input interface, configured to acquire an electrical quantity parameter of a preset control point; a strategy calculation module, configured to calculate a target reactive power value meeting the reactive power requirement command based on the electrical quantity parameter, and allocate reactive power to be provided by a regulatable reactive device based on the target reactive power value; and an output interface, configured to send a command for providing the allocated reactive power to the regulatable reactive device.

Abstract: Method for regulating a bank of alternators comprising at least two alternators that deliver their output in parallel to a load (C), said alternators each being provided with a regulator (12, 13) that is configured to deliver an output signal representative of the reactive power level of the corresponding alternator divided by its nominal reactive power, and a control law allowing the reactive power level of the alternator to be modified depending on an input signal, method wherein a weighted signal employed as the input signal of these regulators is generated from the output signals representative of the reactive power level of each of the alternators, i.e. the signals delivered by the corresponding regulators, so as to make each of the alternators converge to a predefined reactive power level (Trp).

Abstract: A system includes a break-before-make automatic transfer switch (ATS) configured to selectively couple a utility grid and at least one distributed generator (e.g., a plurality of paralleled generators) to a load bus such that, in a state transition of the ATS, the utility grid and the at least one distributed generator are both disconnected from the load bus before the utility grid or the at least one distributed generator is connected to the load bus. The system further includes at least one converter configured to be coupled to the load bus and configured to provide power to the load bus during the state transition of the ATS.

Abstract: A hybrid power system, includes at least one first isolation transformer having an input configured to be connectable to an output of a power supply; an energy storage system having at least one energy storage device and a power conversion system having at least one DC-to-AC converter connected to the at least one energy storage device; and at least one second isolation transformer configured as a step-up isolation transformer having an input connected to an output of the storage system.

Abstract: The present application discloses a method, apparatus, device and medium for equalization control of battery packs. The method may include: acquiring a voltage of each of a plurality of cells of the battery pack; on the condition that one or more voltages of the voltages of the plurality of cells are within a preset voltage interval, selecting a target State of Charge (SOC)-Open Circuit Voltage (OCV) curve from a charging SOC-OCV curve and a discharging SOC-OCV curve stored for the battery pack based on the voltages within the preset voltage interval; acquiring a target SOC of each cell based on the target SOC-OCV curve and the voltage of each cell; calculating, for each cell, a SOC difference between the target SOC of the cell and a reference SOC; calculating an equalizing time for each cell based on the SOC difference of each cell.

Abstract: The present disclosure relates to an apparatus and method for equalizing the charge of a plurality of battery modules while balancing the plurality of battery modules included in a battery pack. The present disclosure has an advantage of allowing easy manufacture of the battery pack with a reduced size since of the battery pack connectors may be simplified and the volume of wire harness may be reduced.

Abstract: Methods and a system for dynamically modifying charging settings for a battery assembly are described. A first usage value and a second usage value for the battery assembly are received. A usage difference value for the battery assembly is determined by comparing the first usage value to the second usage value. The usage difference value is compared to a plurality of battery usage ranges. Each battery usage range is associated with a bin count, a different voltage offset, and a different current offset. The bin count of one of the plurality of battery usage ranges is updated based on the comparison. The bin counts of the plurality of battery usage ranges are analyzed to determine a largest bin count and a respective battery usage range. The battery assembly is charged with a voltage offset and a current offset corresponding to the respective battery usage range with the largest bin count.

Abstract: A charging/discharging apparatus according to the present embodiment comprises first and second electrode terminals inputting or outputting direct-current power. First to third switching elements are connected in series between the first electrode and the second electrode. A first electric storage is connected in parallel to the second switching element located between the first switching element and the third switching element. A second electric storage is connected in parallel to the third switching element. First to third diodes are respectively connected in antiparallel to the first to third switching elements.

Abstract: A secondary battery system of connecting secondary batteries includes first output-unit switches, second output-unit switches, series-connection switches, a positive-side discharging output unit connected to second terminals of the first output-unit switches, a negative-side discharging output unit connected to second terminals of the second output-unit switches, a positive-side charging input unit connected between a positive terminal of one of the secondary batteries at one end of the secondary batteries and a first terminal of one of the first output-unit switches associated with the one of the secondary batteries at the one end of the secondary batteries, a negative-side charging input unit connected between a negative terminal of one of the secondary batteries at the other end of the secondary batteries and a first terminal of one of the second output-unit switches associated with the one of the secondary batteries at the other end of the secondary batteries, and a control unit.

Abstract: A charging circuit provided in an embodiment of the disclosure includes: a universal serial bus USB interface, a main board, and a battery. The charging circuit also includes a first charging line for transmitting a current, a second charging line for transmitting a current, and a signal line for transmitting data signals. The USB interface is respectively connected to a first end of the first charging line, a first end of the second charging line, and a first end of the signal line; a second end of the first charging line and a second end of the second charging line are connected to the battery by means of the motherboard; and a second end of the signal line is connected to the motherboard. Also provided in the embodiments of the present application is a charging method for use in the present charging circuit.

Abstract: The present invention provides a charging coupling including a first charging assembly, the first charging assembly including a first elastic terminal and a second elastic terminal, a receiving space being formed between the first elastic terminal and the second elastic terminal, a tapered opening being provided on one side of the first charging assembly, the tapered opening communicating with the receiving space; and a second charging assembly adapted to the first charging assembly, one side of the second charging assembly being provided with a protrusion, a third elastic terminal and a fourth elastic terminal disposed on the protrusion, the third elastic terminal including a first convex portion and fourth elastic terminal including a second convex portion, and the convex portion being used for inserting into the receiving space from the tapered opening.

Abstract: A device for holding and charging an electronic cigarette element includes a housing configured for coupling to a rear of a mobile computing device, the housing including a rechargeable battery, a first power port in the housing, the first power port conductively coupled to the rechargeable battery and configured for accepting external power for recharging the rechargeable battery, a first receptacle in the housing, wherein the first receptacle is configured to accept an electronic cigarette element, a charging terminal conductively coupled to the rechargeable battery, wherein when the electronic cigarette element contacts the charging terminal, the rechargeable battery recharges a battery of the electronic cigarette element, and, a second receptacle in the housing, wherein the second receptacle is configured to accept a cartridge for the electronic cigarette element.

Abstract: An adjustable system for facilitating establishment of an operative connection between a charging station and a rechargeable power supply on an operating unit that is propelled by a drive. The adjustable system has: an arm assembly on one of the charging station and the operating unit and supporting at least one connector; and at least one connector on the other of the charging station and the operating unit. The connectors, when engaged, establish an operative charging connection. The arm assembly is configured so that the at least one connector on the arm assembly can move in at least two dimensions relative to the one of the charging station and the operating unit to align with and engage the at least one connector on the other of the arm assembly and operating unit as an incident of the operating unit moving from a position spaced fully from the charging station into the charging position.

Abstract: A system for facilitating operative connection between a charging station and a rechargeable power supply on an operating unit that is propelled by a drive, powered by the power supply, as to move over a subjacent surface. At least one connector is provided on the charging station and the operating unit. The connectors are configured to cooperate and establish an operative connection between the charging station and the operating unit. The operating unit is movable from a position spaced from the charging station into a charging position whereupon the connectors assume an engaged relationship. One of the charging station and the operating unit has a flat blade and the other of the charging station and operating unit has an elongate slot. The flat blade is movable guidingly within the elongate slot as the operating unit moves into the charging position.

Abstract: The combination of: a) a wheeled operating unit having a drive powered by a rechargeable power supply and at least one connector; and b) a charging station having at least one connector. The at least one connector on the wheeled operating unit and the at least one connector on the charging station cooperate with each other to establish an operative connection between the charging station and the wheeled operating unit, whereupon the charging station is operable to effect charging of the rechargeable power supply. The operative connection can be established with the wheeled operating unit moved selectively from first and second different starting positions, each spaced fully from the charging station, respectively in first and second different path portions up to the charging station and into at least one charging position.

Abstract: A power management system includes a battery charging system, a power supplying system, a first switching module, and a second switching module. The power management system is switched between the battery charging system and the power supplying system via the first switching module and the second switching module. With a charging electric energy generated by the waveform generating module, the battery charging system could restore the aging battery or the battery with degraded performance to a better state when the batteries are charging. By sensing a battery state of batteries, the power supplying system provides a supplementing power to the batteries, and the supplementing power and a power of the batteries could be supplied to a load together.

Abstract: A battery management system including a memory, at least one processor and a battery management controller. The battery management controller is configured to receive a battery transaction request from a home device, identify a source device and a target device for the battery transaction request, determine an amount of battery charge to receive from a source device for a receive battery transfer request and determine an amount of battery charge to send to a target device for a send battery transfer request, initiate a battery transaction consistent with the battery transaction request, determine whether the determined amount of battery charge to receive from a source device for a receive battery transfer request or whether the determined amount of battery charge to send to a target device for a send battery transfer request has occurred and terminate the battery transaction when the determined amount of battery charge for a corresponding battery transaction request has occurred.

Abstract: According to one embodiment, a battery control device includes a charge and discharge circuit and a processor. The processor determines, based on an information regarding a secondary battery electrically connected to the charge and discharge circuit, whether or not a diagnosis implementation condition is satisfied; controls the charge and discharge circuit to charge the secondary battery only after discharging or charging up to a charging-start SOC if the diagnosis implementation condition is satisfied; acquires measurement data of a voltage and a current of the secondary battery while charging; estimates an internal state parameter of the secondary battery based on the measurement data; and diagnoses a deterioration state of the secondary battery based on the internal state parameter of the secondary battery.

Abstract: Provided is an electronic device including: a battery, a display, at least one processor, and a memory, the memory storing instructions that, when executed, cause the at least one processor to: identify a charging scheme for the battery and a state of the display upon detection of a charging start event, display a graphic object on the display using a first display scheme indicating a first charging scheme based on the state of the display based on the charging scheme being the first charging scheme, and display the graphic object on the display using a second display scheme indicating a second charging scheme based on the state of the display based on the charging scheme being a second charging scheme.

Abstract: A battery-operated electronic device, such as, e.g., a continuous glucose monitoring (CGM) transmitter, has a switch disconnect circuit that reduces battery discharge while the device is stored and/or in “shelf mode.” The device has two externally-accessible activation pads each configured to contact a same electrical conductor positioned in packaging for the device that causes the switch disconnect circuit to disconnect the battery from device electronics while the device is in the packaging. Upon removal of the device from the packaging, the two activation pads no longer contact the electrical conductor, causing the switch disconnect circuit to automatically connect the battery to the device electronics. Methods of reducing battery discharge in a battery-operated electronic device and other aspects are also described.

Abstract: A charging device comprising a first power converter configured to provide a first output power, a second power converter configured to provide a second output power. A switch is coupled to the first power converter and the second power converter. A first socket is configured to deliver the first output power from the first power converter to a first powered device. A second socket is configured to deliver the second output power from the second power converter to a second powered device. A power delivery (PD) controller configured to detect a coupling of the first socket to the first powered device. In addition, the PD controller is configured to detect an absence of coupling of the second socket to the second powered device. Furthermore, the PD controller is configured to control the switch to provide the first output power and the second output power to the first powered device.