47results about "Automatic balancing arrangements" patented technology

In one embodiment, a method includes accessing a first series of first magnetic values that represents a first magnetic recording that includes a first set of first magnetic measurements. Each of the first magnetic values represents one of the first magnetic measurements. The method includes accessing a second series of second magnetic values that represents a second magnetic recording that includes a second set of second magnetic measurements. Each of the second magnetic values represents one of the second magnetic measurements. The method includes approximately aligning the first and second series with each other; calculating a difference between the first and second series as aligned with each other; and determining a similarity between the first and second series based on the difference.

Vehicle electrical system (VES) with an insulation monitor (IM), two supply potentials (V+, V-) and a ground potential (PE), wherein the supply potentials (V+, V-) are DC voltage potentials and wherein a filter capacitor (C1', C2') is connected between each of the two supply potentials (V+, V-) and the ground potential (PE), wherein the insulation monitor (IM) is connected to the ground potential (PE) and the supply potentials (V+, V-) and is equipped with an evaluation device (A) which is configured to output an error signal (S) when the actual voltage change rate of at least one voltage between the supply potentials on the one hand and the ground potential is greater than a predetermined maximum voltage change rate, wherein the evaluation device (A) is configured to output an error signal when the actual voltage change rate of a first voltage between a first of the supply potentials (V+) and the ground potential (PE) is substantially the inverse of the actual voltage change rate of a second voltage between a second of the supply potentials (V-) and the ground potential (PE).

A safety valve, a well system and a method is disclosed. The safety valve, in one aspect, includes a tubular housing, a flow tube positioned within the tubular housing, a valve closure mechanism positioned within the tubular housing, the flow tube configured to move between a closed position and an open position and thereby move the valve closure mechanism between a closed state and an open state, an electromagnet coupled to one of the tubular housing or the flow tube, and one or more permanent magnets coupled to an other of the flow tube or the tubular housing. The safety valve according to this one aspect, may further include an electrical sensor coupled to the electromagnet, the electrical sensor configured to sense for a change in an electrical parameter associated with the electromagnet to determine a health of the safety valve.

A circuit device and an electronic apparatus. The circuit device includes: a voltage division circuit that divides a voltage to be measured and outputs the divided voltage to a voltage division node; a comparison circuit that compares the voltage of the voltage division node with a reference voltage; and a control circuit. The voltage division circuit includes first to n-th resistors provided in series between a voltage node to be measured and a voltage division node, and first to n-th transistors in which an i-th transistor and an i-th resistor are connected in parallel. The control circuit sets the j-th transistor to one of ON and OFF, sets the first to (j-1)-th transistors to the other of ON and OFF, and outputs measurement data by determining the ON or OFF of the j-th transistor on the basis of the comparison result of the comparison circuit.

In an example, a device includes a controller and a direct current (DC)-to-DC converter coupled to the controller and configured to provide a load current to a load. The device also includes a low-dropout (LDO) regulator coupled to the DC-to-DC converter. The controller includes digital logic, and the digital logic is configured to determine the load current. The digital logic is configured to turn on the LDO regulator if the load current is above a predetermined threshold. The digital logic is also configured to turn off the LDO regulator if the load current is below the predetermined threshold.

The method can include receiving a baseline signal curve, operating a thermal reactor, measuring a signal, optionally determining a state (e.g., state of health) of the thermal reactor, and controlling the thermal reactor based on the signal. The method can include receiving (e.g., determining, measuring, etc.) a resistance-temperature and / or resistance-time curve; operating a thermal reactor comprising resistively heating a porous catalytic element; measuring an electrical signal (e.g., resistance, current, voltage, etc.) of the thermal reactor; optionally inferring a temperature of the thermal reactor based on the electrical signal and the resistance-temperature; and controlling the thermal reactor based on the electrical signal. The system can include one or more of a reaction module (e.g., an electrical coupler or electrode and catalytic element, etc.), inlet and outlet valves, power source, electrical feedthroughs (e.g., leads, supports, etc.), sensors, and computing system (e.g. controller).

Electrical circuit (10, 40) comprising: a DC power supply (12); an electrical load (14); and an insulation fault detection device (15, 41), arranged in parallel with the load (14), comprising: a voltage divider; a diode bridge (23); and a comparator (34) comparing a voltage at the output of the diode bridge and a setpoint voltage (Vcons). Figure 1

A battery parameter estimating apparatus according to an embodiment of the present disclosure includes an impedance measuring unit configured to output a plurality of AC currents to a battery and measure a plurality of impedance values for the battery to correspond to the plurality of AC currents; and a control unit configured to generate a first profile by fitting the plurality of impedance values, correct the plurality of impedance values based on the first profile, determine a plurality of criterion values based on the plurality of impedance correction values, generate a second profile by fitting the determined plurality of criterion values, compare the plurality of impedance correction values with the second profile, and determine whether or not to set a battery parameter according to the comparison result.

A circuit device includes a voltage divider circuit that divides and outputs a measurement target voltage to a voltage division node, a comparison circuit that compares a voltage of the voltage division node with a reference voltage, and a control circuit. The voltage divider circuit includes a first resistor to an n-th resistor provided in series between a measurement target voltage node and the voltage division node, and a first transistor to an n-th transistor with an i-th transistor coupled in parallel to an i-th resistor. The control circuit outputs measurement data by setting a j-th transistor to one of on and off, setting the first transistor to the (j−1)-th transistor to the other of on and off, and determining the j-th transistor is on or off based on a comparison result of the comparison circuit.

Method for reducing noise in a vehicle traction circuit power supply system, and associated vehicle traction circuit power supply system. The invention relates to a method and a power supply system for a vehicle traction circuit, the traction circuit comprising a traction motor (4) and a main inverter (18) adapted to deliver an alternating voltage to supply the traction motor (4), the power supply system (2) comprising a self-contained electrical power source (6) providing a first direct current electrical voltage (V1), connected to a voltage boost converter (8) adapted to deliver a second direct current electrical voltage (V2) to the main inverter.The system includes a control block (24) configured to determine a value for the second DC electrical voltage based on a vehicle operating parameter, either vehicle speed (Vveh) or electrical power (Pcons) consumed or delivered by said traction motor, and to control said voltage boost converter (8) to deliver the determined second DC electrical voltage (V2). Figure 1 for abbreviations.

A voltage calibration circuit arranged in a chip and comprising a voltage monitor circuit, a calibration circuit and a storage circuit is provided. The voltage monitor circuit is coupled to at least one power management unit of the chip and configured to: calculate a voltage-code graph based on a received reference voltage and a received divided voltage; and output at least one output code based on the voltage-code graph and at least one output voltage received from the power management unit(s). The calibration circuit is coupled to the voltage monitor circuit and the power management unit(s), and configured to receive the output code(s) and adjust an output level of the power management unit(s) based on the output code(s) and a target code. The storage circuit is coupled to the calibration circuit, and configured to store the voltage-code graph and the output level of the power management unit(s).

A pre-driving stage drives one or more Field Effect Transistors in a power stage driving a load. A method for measuring current flowing in the Field Effect Transistors includes: measuring drain to source voltages of the one or more Field Effect Transistor; and measuring an operating temperature of the one or more Field Effect Transistor. The current flowing in the Field Effect Transistors is measured by: calculating the respective on drain to source resistance at the operating temperature as a function of the measured operating temperature and obtaining the current value as a ratio of the respective measured drain to source voltage over the calculated drain to source resistance at the operating temperature.

A system for generating and measuring electrical signals is disclosed. The system includes a digital-to-analog converter module configured to generate one or more analog signals based on a control signal and one or more channels. Each channel includes an output terminal configured to be electrically connected to an electrical device and a buffer circuit. The buffer circuit is configured to receive one of the one or more analog signals and provide a voltage at the output terminal based on a voltage of the received analog signal. The buffer circuit is further configured to be electrically connected to a current source and to allow a current to flow between the current source and the output terminal. The system further includes a voltage measurement system and a current measurement system. The voltage measurement system is configured to measure, for each channel, a voltage indicative of a voltage at the output terminal of the channel. The current measurement system is configured to measure, for each channel, a current flowing through the output terminal of the channel. A method for generating and measuring electrical signals is also disclosed.

A voltage regulator feedback circuit includes a first comparator, a second comparator and a logic circuit. The first comparator is configured to generate an overshoot signal based on a comparison of a voltage regulation target signal to a feedback voltage signal. The second comparator is configured to generate a forward current signal based on a comparison of the current sense amplifier voltage to a reference voltage. The logic circuit is configured to generate a breaking signal based on the overshoot signal and the forward current signal. A gate signal of a transistor connected between a second end of the inductor and a reference ground is generated based at least in part on the breaking signal and is configured to cause the transistor to open based at least in part on the breaking signal having a true value.

The invention relates to a device and a method for evaluating signals from one or more Wheatstone bridges. Here, the requirements of ISO 26262 are taken into account by mixing a test signal with the measurement signal before amplification and before analog-digital conversion. After amplification and analog-digital conversion, the measurement signal is again unmixed from the test signal. If the test signal does not correspond to the expected value, the amplifier and / or the analog-digital converter is faulty. The process has the advantage that it can be used during regular operation without being disturbed.

A monitoring signal generation circuit of a SPS and method thereof is disclosed. The SPS provides an output current. The monitoring signal generation circuit provides a current monitoring signal related to the output current. The monitoring signal generation circuit includes a simulation current circuit and a control circuit. The simulation current circuit receives a reference voltage and provides a simulation current signal or the reference voltage as the current monitoring signal. The control circuit is coupled to the simulation current circuit and configured to receive the reference signal, the current monitoring signal and an indication signal. During a period when the indication signal indicates that power switches of the SPS are turned off, the control circuit controls the simulation current generation circuit to provide the simulation current signal or the reference voltage as the current monitoring signal according to the current monitoring signal and the reference voltage.

In one embodiment, a method includes, by an electronic device, accessing a first series of first magnetic values that represents a first magnetic recording that comprises a first set of first magnetic measurements that are each represented by one of the first magnetic values. The method includes, by the electronic device, accessing a second series of second magnetic values that represents a second magnetic recording that comprises a second set of second magnetic measurements that are each represented by one of the second magnetic values. The method includes, by the electronic device, approximately aligning the first and second series with each other; calculating a difference between the first and second series as aligned with each other; determining a similarity between the first and second series based on the difference; and performing navigation or localization based on the determined similarity.

Provided is a method for detecting a neutral relay, belonging to the field of inverters. The method for detecting the neutral relay includes: applying a voltage disturbance to the bus neutral point when other neutral relays except a target neutral relay among the at least one series-connected neutral relay are closed; acquiring potential change information of the bus neutral point relative to the grid neutral point within a period during which the voltage disturbance is applied; and determining a sticking state of the target neutral relay based on the potential change information and a target threshold.

In one embodiment, a method includes accessing a first series of first magnetic values that represents a first magnetic recording that includes a first set of first magnetic measurements. Each of the first magnetic values represents one of the first magnetic measurements. The method includes accessing a second series of second magnetic values that represents a second magnetic recording that includes a second set of second magnetic measurements. Each of the second magnetic values represents one of the second magnetic measurements. The method includes approximately aligning the first and second series with each other; calculating a difference between the first and second series as aligned with each other; and determining a similarity between the first and second series based on the difference.

An apparatus for diagnosing a battery according to one aspect of the present disclosure may include a measuring unit configured to measure a voltage value of the battery at each predetermined cycle during a battery charging process; and a processor configured to calculate a resistance value of the battery based on the measured voltage value of the battery, determine a resistance change pattern by comparing the calculated plurality of resistance values with a preset criterion profile, and determine the state of the battery based on the determined resistance change pattern.

A sensing electronic device includes a substrate, and a reference voltage control unit. The sensing array is arranged on the substrate, and includes a first sensing electrode and a second sensing electrode. The reference voltage control unit is electrically connected to the sensing array. In an operation period, the reference voltage control unit has a first voltage, the first sensing electrode has a second voltage, and the second sensing electrode has a third voltage, wherein a difference between the first voltage and the second voltage is different from a difference between the first voltage and the third voltage.

A monitoring system monitors a presence or condition of a particular fluid in a device for storing or conducting the fluid using permittivity properties of the fluid. The system includes: the device for storing or conducting the fluid; a detector component being an integral part of the device and having a component body and a passive antenna deposited on a surface of the component body; and a reader device having a reader antenna. The reader device emits an electromagnetic output signal with a predefined output power and over a predefined frequency range via the reader antenna to the passive antenna and measures a reflected signal over the predefined frequency range, which is reflected from the passive antenna. The reader device also compares the reflected signal with at least one reference signal of at least one reference fluid to determine the presence or the condition of the particular fluid.

To provide a hardware scheme for dynamic adjustment of a DCDC converter peak current and safe LDO disable.SOLUTION: A system 100 includes a controller, a DC (direct current) DC converter coupled to the controller to supply a load current to the load, and an LDO (low dropout) regulator coupled to the DCDC converter. The controller includes digital logic that determines a load current, turns on the LDO regulator when the load current is above a predetermined threshold, and turns off the LDO regulator when the load current is below the predetermined threshold.SELECTED DRAWING: Figure 1

A capacitor device (1) for an aircraft electrical generation system (S), the electrical generation system (1) comprising at least one electrical machine (M) configured to generate alternating current, at least one converter (C) for converting the alternating current from the electrical machine (M) and supplying a distribution current (Idc) to a continuously powered electrical distribution unit (EDU) of the aircraft, the capacitor device (1) being configured to be mounted in parallel with the converter (C) and to smooth the distribution current (Idc), the capacitor device (1) comprising two terminals and a plurality of capacitor elements mounted in parallel, the capacitor device (1) comprising at least one current sensor (2) configured to measure an elementary distribution current (Idce) flowing through a capacitor element. Abstract figure: Figure 5

Provided is a method for detecting a neutral relay, belonging to the field of inverters. The method for detecting the neutral relay includes: applying a voltage disturbance to the bus neutral point when other neutral relays except a target neutral relay among the at least one series-connected neutral relay are closed; acquiring potential change information of the bus neutral point relative to the grid neutral point within a period during which the voltage disturbance is applied; and determining a sticking state of the target neutral relay based on the potential change information and a target threshold.

According to an embodiment of the present invention, a battery parameter estimation device includes an impedance measurement unit configured to output a plurality of AC currents to a battery and measure a plurality of impedance values ​​for the battery corresponding to the plurality of AC currents; and a control unit configured to generate a first profile by fitting the plurality of impedance values, correct the plurality of impedance values ​​based on the first profile, determine a plurality of reference values ​​based on the plurality of impedance correction values, generate a second profile by fitting the determined plurality of reference values, compare the plurality of impedance correction values ​​with the second profile, and determine whether to set battery parameters according to a comparison result.

A battery parameter estimating apparatus according to an embodiment of the present disclosure includes an impedance measuring unit configured to output a plurality of AC currents to a battery and measure a plurality of impedance values for the battery to correspond to the plurality of AC currents; and a control unit configured to generate a first profile by fitting the plurality of impedance values, correct the plurality of impedance values based on the first profile, determine a plurality of criterion values based on the plurality of impedance correction values, generate a second profile by fitting the determined plurality of criterion values, compare the plurality of impedance correction values with the second profile, and determine whether or not to set a battery parameter according to the comparison result.