Abstract: A battery includes an elongated container including at least one elongated wall extending in a longitudinal direction between a first end wall and a second end wall; and a plurality of battery units stacked inside of the container along a stacking direction that intersects the at least one elongated wall. Each battery unit includes an anode, a cathode and a solid electrolyte between the anode and the cathode. Each battery unit has a length in the longitudinal direction, a thickness in the stacking direction and a width in a lateral direction. The longitudinal direction and the lateral direction are perpendicular to the stacking direction.
Abstract: A wearable electronic device may include: a housing including a first surface, a second surface opposite to the first surface, and a side surface surrounding the first surface and the second surface; a first electrode and a second electrode arranged on the second surface; a third electrode and a fourth electrode arranged on the side surface; and a processor, including processing circuitry, operatively connected to the first electrode, the second electrode, the third electrode, and the fourth electrode.
Type:
Application
Filed:
March 31, 2025
Publication date:
August 14, 2025
Inventors:
Jaehyuck PARK, Daeung JEONG, Namseok CHANG
Abstract: Disclosed herein is a switching power supply circuit that includes a switching circuit having an input node connected to an input power supply terminal and an output node connected to an output power supply terminal through an output switch, a feedback circuit configured to feed back information based on a voltage appearing at a control node to the switching circuit, and an activation circuit configured to turn ON the output switch after an elapse of a predetermined time after a voltage appearing at the control node exceeds a predetermined value. The switching circuit is configured to adjust a level of a voltage appearing at each of the output node and the control node based on the information to a predetermined level. The feedback circuit includes an adjustment mechanism configured to adjust a relation between a voltage appearing at the control node and the information.
Abstract: Systems and methods involving a cloud distributed integrated node (DIN) composed of one or more servers; and a plurality of edge DINs configured to manage a corresponding region of heterogenous energy sources; which includes intaking data across the heterogenous energy sources of the corresponding region for one or more of the plurality of edge DINs; executing processing on the intaken data to produce a unified output for processing by the cloud DIN; transmitting the unified output to the cloud DIN from the one or more of the plurality of edge DINs; in response to receipt of the unified output from one or more of the plurality of edge DINs, issuing, a command to regulate the heterogenous energy sources of the corresponding region; and controlling the heterogenous energy sources of the corresponding region in response to the command with the one or more of the plurality of edge DINs.
Type:
Application
Filed:
February 9, 2024
Publication date:
August 14, 2025
Inventors:
Yanzhu YE, Natsuhiko FUTAMURA, Panitarn CHONGFUANGPRINYA, Bo YANG
Abstract: A power supply device includes a first power source, a second power source, a switch circuit including a first switch to a third switch, a first reactor, a second reactor, and a control device configured to control the switch circuit and to alternately switch between a first state in which the first power source is connected between the first node and the fourth node via the first reactor and the second power source is connected to both ends of the second reactor and a second state in which the second power source is connected between the first node and the fourth node via the second reactor and the first power source is connected to both ends of the first reactor.
Abstract: A control unit for controlling the power of a battery including at first and second incoming connections carrying a DC voltage and first and second outgoing connections delivering a DC voltage. The first incoming connection is connected to a first current sensor and to a high-voltage busbar via a protection member. The high-voltage busbar is connected to the first outgoing connection via a first controlled fuse and a second current sensor, and to a second outgoing connection via a second controlled fuse and a third current sensor. A control means is configured to switch the protection member, the first controlled fuse or the second controlled fuse based on received measurements so as to isolate an electrical fault.
Abstract: System and method of environmental monitoring. In an embodiment, a remote monitoring device comprises power-consuming components comprising at least one sensor and a radio interface component, and a power source comprising a battery and a solar panel. The device stores mode information on operating modes defining differing levels of sensing capabilities and have different power consumption profiles.
Type:
Application
Filed:
February 10, 2025
Publication date:
August 14, 2025
Inventors:
Jari Pekka KONTIO, Antero TAIVALSAARI, Antti AALTO, Tomi VIITALA
Abstract: The present invention relates to a water purification robot capable of easily controlling a direction during autonomous driving in reservoirs, dams, etc. and removing algae by measuring water quality in real time, collecting water at a specific water collection point and water collection depth to improve accuracy of water quality measurement, and purifying water quality by circulating water while charging a water purification robot and managing the water purification robot in an unmanned way to help to improve the water quality, a station for a water purification robot, and a smart water quality management system using the same.
Abstract: Some wireless communications systems may support deployment of ambient internet of things (IoT) devices, which include relatively low power and low complexity devices that are capable of harvesting energy from different sources, including radio frequency (RF) waves, solar energy, heat, or other ambient sources. Energy harvesting (EH)-capable devices such as ambient IoT devices may be used for applications such as inventory tracking, sensing, positioning, or command systems. Ambient IoT devices may be deployed for inventory reading or tracking. In some of the approaches described herein, unsynchronized duty cycle-based operations at EH-capable devices (e.g., ambient IoT devices) and multiple queries in a round from a reader may be utilized. For example, some of the techniques described herein may provide approaches for efficiently multiplexing multiple queries from different inventory rounds. For example, an inventory round may include multiple signaling instances to query one or more ambient IoT devices.
Abstract: A rotor of a synchronous motor includes a rotor core connected to a shaft, a set of magnets configured to be operably magnetizable and de-magnetizable, and one or more pairs of wedges extending from the rotor core. Each wedge of the one or more pairs of wedges has a proximal end thereof connected to a subset of magnets from the set of magnets. Each wedge of the one or more pairs of wedges is connected by a corresponding rib.
Type:
Application
Filed:
February 8, 2024
Publication date:
August 14, 2025
Applicant:
Jacobi Motors, LLC
Inventors:
Ahmed Salah Morsy, Chaitanya Kumar Ravipalli, Pierre-Olivier Gourmelon, Nathan Rukavina, Faustino Villarreal-Blozis
Abstract: A motor coil substrate includes a flexible substrate, and coils including wirings such that the wirings are formed on a first surface of the flexible substrate and a second surface on the opposite side with respect to the first surface. The flexible substrate is wound circumferentially from one end of a longitudinal direction of a flexible substrate around an axis extending in a direction perpendicular to the longitudinal direction of the flexible substrate such that the flexible substrate is formed into a cylindrical shape, and the coils are formed such that a space factor of the coils in a cross section of the motor coil substrate is in a range of 50% to 99%.
Abstract: A bearing assembly for a linear electromagnetic machine includes a sleeve having a surface configured to provide a bearing between the surface and a translator, a front plate coupled to the sleeve, a support block, and a plurality of flexures coupled to the support block. Each flexure is coupled between the support block and one of the front plate or a stator. For example, a load path extends from a stator to the support block via a first set of flexures of the plurality of flexures, from the support block to the front plate via a second set of flexures of the plurality of flexures, and from the front plate to the sleeve. In the example of four flexures, two flexures are affixed to the support block and front plate, while two other flexures are affixed to the support block and the stator.
Type:
Application
Filed:
February 20, 2025
Publication date:
August 14, 2025
Inventors:
John Lawler, Neil Watters, Samuel Sherman, Matthew Svrcek, David DeGraaff
Abstract: An electric motor includes a stator having a stator core constructed from a ferromagnetic material and having an external stator surface. The stator core includes a stator core body and a plurality of stator teeth extending therefrom. The plurality of stator teeth define conductor slots therebetween. The stator also includes a plurality of stator conductors arranged within the conductor slots. The stator additionally includes a slot liner arranged within each conductor slot and surrounding the corresponding stator conductors. A first gap is established between each stator conductor and the corresponding slot liner, and a second gap is established between each slot liner and the neighboring stator teeth. A predetermined amount of varnish arranged within the first and second gaps to limit an amount of open space within the first and second gaps that is free from the varnish and regulate viscous damping of the electric motor.
Type:
Application
Filed:
February 9, 2024
Publication date:
August 14, 2025
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Song He, John M. Lorentz, Edward L. Kaiser, Ronald Buchholz, Valerie Wu
Abstract: A motor includes a stator core, a case, a guide ring, and a seal member. The guide ring has a ring shape, and is sandwiched between the end surface of the stator core and a facing portion. The seal member is provided at a target interface that is at least one of an interface between the guide ring and the end surface and an interface between the guide ring and the facing portion. A space surrounded by an inner surface of the case, an outer peripheral surface of the guide ring, and the end surface configures a circular-ring coolant flow path. The seal member is configured of a linear member. The linear member is sandwiched at the target interface in a state of being annularly bent along the guide ring such that both end portions of the linear member are in contact with each other.
Abstract: A method of operating a PFC circuit. The method includes receiving an input voltage at an input terminal, controlling a current in an inductor via a first switch having a drain terminal, a source terminal and a gate terminal, where the inductor is coupled between the input terminal and the drain terminal and where during an on-time of the first switch the current in the inductor increases from substantially zero to a peak, during a first off-time of the first switch the current in the inductor decreases from the peak to substantially zero, and during a second off-time of the first switch the current in the inductor is substantially zero, generating a first reference voltage that is inversely proportional to a sum of the on-time and the first off-time of the first switch, and controlling the on-time of the first switch in response to the first reference voltage.
Abstract: A system and method for converting an input AC voltage of a voltage source into an output DC voltage is proposed. The proposed system and method include at least two MEMS switches coupled in parallel with a corresponding voltage clamp switch within a MEMS rectifier. The MEMS switches achieve Zero-Voltage-Zero-Current (ZVZC) Turn on and Zero-Current-Zero-Voltage (ZCZV) Turn off through the inclusion of at least one high frequency switch and a current diverting circuit which ensure that when the at least two MEMS switches transition between an on-state and off-state there is no voltage or current present in the at least two MEMS switches.
Abstract: A power converter includes a switch circuit having an input voltage terminal, an output voltage terminal, and a plurality of control inputs. The switch circuit includes a plurality of transistors. First and second capacitors have terminals coupled to the switch circuit. A control signal generator is coupled to the plurality of control inputs and is configured to sequence the plurality of transistors through first, second, third, fourth, fifth, and sixth control phases. In the first control phase, the first capacitor charges and the second capacitor discharges. In the second control phase, the first and second capacitors partially charge. In the third control phase, the second capacitor charges. In the fourth control phase, the first capacitor discharges and the second capacitor charges. In the fifth control phase, the first and second capacitors partially charge. In the sixth control phase, the first capacitor charges.
Type:
Application
Filed:
August 22, 2024
Publication date:
August 14, 2025
Inventors:
Douglas Bouler, Ryan Lind, Eric Southard
Abstract: This application relates to methods and apparatus for driving a transducer. A transducer driver has a switch network that is operable to selectively connect a driver output to any of a first set of at least three different switching voltages which are, in use, maintained throughout a switching cycle of the driver apparatus. The switch network is also operable to selectively connect the driver output to flying capacitor driver. A controller is configured to control the switch network and flying capacitor driver to generate a drive signal at the driver output based on an input signal, wherein in one mode of operation the driver output is switched between two of the first set of switching voltages with a controlled duty cycle and in another mode of operation the driver output is connected to the flying capacitor driver which is switched between first and second states with a controlled duty cycle.
Type:
Application
Filed:
April 30, 2025
Publication date:
August 14, 2025
Applicant:
Cirrus Logic International Semiconductor Ltd.
Inventors:
Yongjie CHENG, Lingli ZHANG, John L. MELANSON, Thomas H. HOFF, Eric J. KING, Zhaohui HE
Abstract: Systems and methods for diplexer circuits with leakage cancellation are provided. In one aspect, a diplexer circuit including first and second radio frequency transceiver terminals and a first antenna terminal, and first and second parallel communication paths extending between the first radio frequency transceiver terminal and the first antenna terminal, and third and fourth parallel communication paths extending between the second radio frequency transceiver terminal and the first antenna terminal. The circuit also includes a first phase shifter configured to apply a first phase shift to a first radio frequency transmit signal on the first communication path, a second phase shifter configured to apply a second phase shift to a second radio frequency on the second communication path, and a third phase shifter configured to apply a third phase shift to the first radio frequency transmit signal on the third communication path.
Abstract: Systems and methods are disclosed for hybrid analog wideband beam steering and digital narrowband beam steering. In one embodiment, a receiving node for a wireless system comprises antenna elements or antenna sub-arrays and receive branches each comprising a radio front-end (RFE), a phase-locked loop (PLL), down-conversion circuitry, filtering circuitry, and analog-to-digital conversion (ADC) circuitry. The RFE has an input coupled to a respective one of the plurality of antennas and outputs a wideband radio frequency (RF) signal. The down-conversion circuitry down-converts the wideband RF signal to baseband based on a PLL output of the PLL. The filtering circuitry filters the wideband baseband signal, wherein the filtered wideband baseband signal comprises a narrowband signal. The ADC circuitry converts the narrowband signal or a modified version thereof to digital. The PLLs of the plurality of receive branches are configured to apply respective phase rotations for wideband analog beam steering.
Type:
Application
Filed:
April 26, 2022
Publication date:
August 14, 2025
Inventors:
Lars Sundström, Fredrik Tillman, Staffan Ek