Abstract: A low drop-out voltage regulator (LDO) circuit structure includes a drive transistor with first connected to an input voltage node, a second terminal connected to an output voltage node and a voltage divider, and a third terminal (i.e., a control terminal). The structure employs a pair of concurrently operating feedback control loops between a feedback voltage node of the voltage divider and the control terminal to continuously adjust a control voltage applied to the control terminal and thereby reduce ripple of an output voltage (Vout) at the output voltage node. A first feedback control loop includes comparator and a push capacitor connected between the feedback voltage node and the control terminal. The second feedback control loop includes an operational amplifier connected between the feedback voltage node and the control terminal. The first feedback control loop operates a faster speed than the second to quickly initiate the necessary control voltage adjustments.

Abstract: An inductive wireless power transfer and communication system includes an electrostatic shield for one of the coils. The electrostatic shield is inductively coupled with the coil and is configured as an open circuit. A signal processing element or elements, especially a modulator or a demodulator, are connected across the electrical discontinuity in the electrostatic shield. Because the electrostatic shield is inductively coupled to the coil, the modulator or demodulator can operate on the signal on the coil. An electronically controlled variable inductor is connected across the electrical discontinuity in the electrostatic shield. Because the electrostatic shield is inductively coupled to the coil, the variable inductor can tune the impedance of the system.

Abstract: A circuit apparatus includes: a first oscillation circuit configured to generate a first clock signal; a PLL circuit including a second oscillation circuit configured to generate a second clock signal and a frequency control voltage generation circuit configured to generate a frequency control voltage for controlling a frequency of the second clock signal, the PLL circuit being configured to synchronize a phase of the second clock signal with a phase of the first clock signal; and a failure detection circuit configured to monitor the frequency control voltage and detect whether there is a possibility that the frequency control voltage deviates from a predetermined voltage range in which the second oscillation circuit is capable of operating normally.

Abstract: An anti-theft immobilizer system for vehicles is disclosed, comprising a module installed on the vehicle's onboard battery terminals to act as an intermediary between the battery and the ignition system. This design allows rapid, user-friendly installation without requiring professional expertise. The system includes a programmable circuit board, an ultrasonic sensor, a digitally activated relay, and an independent power source. Key functionalities include measuring instantaneous current demand in the ignition circuit and disrupting the circuit to prevent engine startup. The module integrates wireless communication features, such as Bluetooth and LTE, enabling remote arming and disarming via a mobile application. Additionally, the system detects tampering or unauthorized access by measuring the distance between the module and the vehicle hood, notifying authorized users of any irregularities. This innovative solution enhances vehicle security through advanced monitoring and remote-control capabilities.

Abstract: An antenna device includes circuitry configured to determine a first distance between a marker center and a fisheye lens, based on a first elevation angle and a coordinate of a marker along a third axis, determine second distances between the fisheye lens, and first endpoints and second endpoints, and control phase adjustment amounts by which phase shifters adjust phases of power transmission signals in a first axis direction and a second axis direction. The circuitry is configured to set phase adjustment amounts for three antenna elements including antenna elements at both ends in the first axis direction and for three antenna elements including antenna elements at both ends in the second axis direction, based on path differences between the first distance and the second distances, and set phase adjustment amounts for a plurality of antenna elements arranged two-dimensionally by parabolic interpolation of a quadratic function.

Abstract: A system of providing power to a chip on a mainboard includes a first power supply that is located on the mainboard and configured to receive a first voltage and to provide a second voltage; a second power supply and a third power supply that are located on the mainboard and disposed at different sides of the chip, where each of the second power supply and the third power supply is electrically connected to the first power supply to receive the second voltage, the second power supply provides a third voltage to the chip, the third power supply provides a fourth voltage to the chip; and at least one power supply controller that is located on the mainboard and configured to control operation of the second power supply and the third power supply.

Abstract: A vehicle control system includes: in-vehicle ECUs provided according to positions within a vehicle or functions of the vehicle; and an integrated ECU configured to control the in-vehicle ECUs, the in-vehicle ECUs include an ECU capable of communicating with an auxiliary battery sensor configured to detect a state of an auxiliary battery, the auxiliary battery sensor is configured to transmit the state of the auxiliary battery to the integrated ECU via the ECU capable of communicating with the auxiliary battery sensor, and when starting the vehicle, the integrated ECU secures communication in the vehicle, and activates the ECU capable of communicating with the auxiliary battery sensor, and starts communication of the auxiliary battery sensor in parallel.

Abstract: A method of manufacturing a vapor cell includes forming a body of the vapor cell having walls defining a cavity thereinbetween, the cavity having an amount of a subject material contained therein. The method also includes forming a pore structure having a substrate material with pores of a substantially uniform dimension formed therein, the pore structure disposed along a portion of one or more of the walls of the vapor cell. The method further includes forming a liner material of a uniform thickness over one or more internal surfaces of the pores, wherein the subject material exhibits a reduced wetting angle on the liner material which is less than a wetting angle of the subject material on the substrate material.

Abstract: A converter converts a DC input voltage into a DC output voltage. The converter includes: a regulator unit coupled to a power unit. The power unit has: a first converter stage, with two input connections; a second converter stage, which is connected to the first converter stage; and a third converter stage, which is connected to the second converter stages and has two output connections. The first, second, and third converter stages are adapted so that, when the DC input voltage is applied, the DC output voltage is supplied during operation of the converter. An actual transformation ratio of the power unit is defined: by a ratio between the DC input voltage and the DC output voltage, or by a ratio between an input current and an output current. The regulator unit acts on the power unit such that the actual transformation ratio is matched to a predetermined transformation ratio.

Abstract: The present technology is directed to a method, circuit and system for improved power management, and in an aspect there is provided control circuitry for controlling operation of an associated power multiplexer circuit, the control circuitry including: a first input to receive a first voltage; a second input to receive a second voltage; comparator circuitry to determine the level of the first voltage relative to the second voltage and to generate a first control signal when the second voltage reaches a first threshold level relative to the first voltage, where the first control signal is to indicate a desired output of the associated power multiplexer circuit.

Abstract: Power supplies and methods of use thereof are provided, where a power supply includes an input configured to receive input AC power an output configured to provide output AC power to a load, at least one power converter coupled to the input and configured to convert the input AC power into the output AC power, a controller coupled the at least one power converter. The controller is configured to adjust at least one parameter of the output AC power provided by the at least one power converter, detect, in response to adjusting the at least one parameter of the output AC power, at least one of an adjusted input AC power or an adjusted output AC power, and determine that a fault has occurred based on the at least one of the adjusted input AC power or the adjusted output AC power.

Abstract: In some examples, this disclosure describes a method of operating a plurality of battery management circuits of a battery management system associated with an electric device. The method may comprise adjusting a first trim value associated with a first battery management circuit during operation of the electric device, and adjusting a second trim value associated with a second battery management circuit during operation of the electric device. The method may also comprise sinking a first amount of current in the first battery management circuit based on the first trim value; and sinking a second amount of current in the second battery management circuit based on the second trim value, wherein sinking the first amount of current and sinking the second amount of current causes the first battery management circuit and the second battery management circuit to consume substantially similar amounts of current.

Abstract: Aspect of the invention relate to apparatuses and methods for backup power systems. The apparatus comprises a communications enclosure. The communications enclosure comprises a generator module. The generator module comprises a generator and a rack mount.

Abstract: A parasitic capacitance mitigation circuit for a relaxation oscillator. The parasitic capacitance mitigation circuit includes a first switch coupled across a parasitic capacitance of a resistive sensing element and a second switch coupled between the parasitic capacitance and a reference voltage node. The parasitic capacitance mitigation circuit includes a pulse generator configured to: monitor a voltage across the parasitic capacitance; detect a voltage transient across the parasitic capacitance; and generate a pulse control signal in response to detecting the voltage transient. In response to the pulse control signal, the first switch opens and the second switch closes to discharge the parasitic capacitance through the second switch.

Abstract: An asymmetric RF switch for micro or millimeter waves, with each shunt or passthrough stack having two or more series FETs of approximately same channel width. A first lowest loss path, having only transmission line, passing through a second node, between common and first selectable ports. A second path, between the common and second selectable ports, passing through the second node, a passthrough stack, and a first node. Isolating the second selectable port from the first path by an on state of a second shunt stack connected to the first node, and an off state of the passthrough stack. Isolating the first selectable port from the second path by having an on state of the first shunt stack, or a path length, between the second node and the ground of a first shunt stack coupled to the second node, one quarter the wavelength of signals over the second path.

Abstract: Systems and methods for managing the distribution of electrical power are disclosed. The system can maintain a status of each account of a plurality of accounts. Each account can correspond to an electrical power generation device, an electrical power consumption device, and an electrical power transmission device. The system can generate a first record object in response to the generation of a unit of power. The system can identify a first path identifying a source device and a destination device to transmit the unit of power. The system can generate a control signal to route the unit of power from the source device to the destination device. The system can update an event tracker to indicate the routing of the unit of power. The system can generate a second record object corresponding to the destination device. The system can update a second account to include the second record object.

Abstract: A method for performing supplementary charging on a low-voltage battery based on redundancy power conversion, includes: determining whether supplementary charging is required for a first low-voltage battery or a second low-voltage battery in a parked state; determining whether supplementary charging mode entering using a voltage of a high-voltage battery is possible when it is determined that the supplementary charging is required; and converting and supplying a charging voltage of another low-voltage battery to a low-voltage battery that requires supplementary charging among the first low-voltage battery or the second low-voltage battery when a condition that does not allow the supplementary charging mode entering is determined.

Abstract: A microwave synchronisation system comprising an oscillator configured to provide a microwave signal, and an RF cavity configured to resonantly enhance the microwave signal to form a resonantly enhanced electromagnetic field, an electro-optic modulator connected to the RF cavity and configured to receive a microwave signal from the RF cavity, and an optical interferometer which includes the electro-optic modulator and is configured to provide an output indicative of a phase difference between a pulsed laser beam and the microwave signal received from the RF cavity, wherein the output from the interferometer is connected to an input of the oscillator to provide feedback through which electromagnetic fields in the RF cavity can be synchronised with the pulsed laser beam.

Abstract: The present disclosure relates to an oscillator, such as a Digitally Controlled Oscillator (DCO), having first capacitor banks coupled to a first path and a second path, the first path connecting a first node to a first output node, and the second path connecting a second node to a second output node, and second capacitor banks coupled to a third path and a fourth path, the third path being connected to the first node, the fourth path being connected to the second node, the first and second paths being separate from the third and fourth paths, and the second capacitor banks including at least one modulation capacitor bank.

Abstract: A voltage controller detects a voltage spike in an electrical signal received from an electrical power source. The voltage controller is implemented using a single-loop control system in a stationary reference frame. The electrical signal includes voltage harmonics caused by a non-linear or unbalanced load. The voltage controller includes a phase-compensated harmonic regulator that regulates the voltage harmonics present in the electrical signal and receives a feedback voltage of the single-loop control system. The feedback voltage is a delayed version of an instantaneous voltage of the electrical signal. The instantaneous voltage is sub-transiently stabilized into a steady-state voltage based on the feedback voltage. Sub-transiently stabilizing the instantaneous voltage is performed within a single cycle after the voltage spike is detected. The steady-state voltage has a total harmonic distortion less than a threshold total harmonic distortion and the steady-state voltage has a balanced sinusoidal waveform.