Electrical current and/or voltage monitoring powered by induction and/or conductive spike, and related devices, apparatuses, systems, and methods are disclosed. An electricity monitoring device can include a measuring conductor electrically coupled to a monitored energy source to detect/read voltage of the monitored energy source. The electricity monitoring device can include an electrical component in which a fluctuating magnetic field is induced from a fluctuating flow of electrical current in the monitored energy source, the fluctuating magnetic field to produce an electromotive force to provide electrical energy. The electricity monitoring device can include a controller that can further include processing circuitry to be powered by the provided electrical energy, the controller coupled to the measuring conductor to determine a present run-time electrical voltage of the monitored energy source based on a reading of the measuring conductor. In some embodiments, the electrical component can be a Rogowski coil.

System and method for detecting a power. For example, a system for detecting a power includes: a first signal converter configured to receive a first signal and generate a pulse-width-modulation signal based at least in part on the first signal; a second signal converter configured to receive a second signal and generate a voltage signal based at least in part on the second signal; and a low-pass filter configured to receive the pulse-width-modulation signal and the voltage signal and generate a power detection signal based at least in part on the pulse-width-modulation signal and the voltage signal; wherein: the first signal is either an input current or an input voltage; the second signal is either the input current or the input voltage; and the first signal and the second signal are different.

The present invention discloses an asymmetrical PN junction thermoelectric couple structure and its parameter determination method. By changing the structural parameters of p-type semiconductor or n-type semiconductor, the current generated by p-type semiconductor is equal to the current generated by the n-type semiconductor, so that the high-efficiency output of PN junction thermoelectric couple can be realized. Meanwhile, the present invention provides a method for determining the parameters of PN junction based on the numerical solution method. Finally, the optimal size parameters of PN junction are obtained.

The present invention discloses an asymmetrical PN junction thermoelectric couple structure and its parameter determination method. By changing the structural parameters of p-type semiconductor or n-type semiconductor, the current generated by p-type semiconductor is equal to the current generated by the n-type semiconductor, so that the high-efficiency output of PN junction thermoelectric couple can be realized. Meanwhile, the present invention provides a method for determining the parameters of PN junction based on the numerical solution method. Finally, the optimal size parameters of PN junction are obtained.

A measuring device for measuring current effective power in a circuit of a transmission system, including an evaluation device and a calibration device, the evaluation device having a connection for measuring current, voltage, and phase shift between the current and the voltage in the circuit, wherein the evaluation device and the calibration device are connected to one another, the evaluation device configured to measure power by evaluating measured current and measured voltage, the calibration device configured to correct the measured current and/or the measured voltage via a cos ( ) value of a measured phase shift between the measured current and the measured voltage and/or via a holding time, the evaluation device configured to calculate a power value with a corrected value of the measured current and/or a corrected value of the measured voltage, and the calibration device configured to make available the calculated power as the current effective power.

Measuring arrangement for determining the bridge currents of a switched electrical converter unit (2), in which, in a modulation process, at least two electronic half bridges (3, 3′) are switched with temporally offset actuation signals by a control unit (4), comprising a measuring unit (1) that is connected to current sensors (6, 6′), wherein the current sensors (6, 6′) are arranged in the output or input lines of the half bridges (3, 3′) in order to measure the bridge currents, and the measuring unit (1) is connected to the control unit (4) for temporal synchronisation, wherein the measuring unit (1) is designed to define measurement times (8, 8′) of the current sensors (6, 6′) which are temporally synchronised with the actuation signals of the half bridges (3, 3′), as well as an inverter arrangement having such a measuring arrangement.

The invention relates to means for a calibration standards-compliant determination of the electrical energy transferred from a charging station, which make a measurement at the transfer point, that is to say at the vehicle-side end of the charging cable, unnecessary. Here, the electrical energy transferred from a charging station is determined by a measurement of the energy before the transfer point, wherein the reactive power component from the termination point as far as the transfer point is compensated. The reactive power component is determined from at least one second electrical variable, for example a resistance of a conductor or a conductor shield, which is in a fixed relationship with an analog electrical variable that is relevant to the transferred electrical energy, for example an ohmic total resistance of at least two conductors involved in a charging circuit.

The invention relates to means for a calibration standards-compliant determination of the electrical energy transferred from a charging station, which make a measurement at the transfer point, that is to say at the vehicle-side end of the charging cable, unnecessary. Here, the electrical energy transferred from a charging station is determined by a measurement of the energy before the transfer point, wherein the reactive power component from the termination point as far as the transfer point is compensated. The reactive power component is determined from at least one second electrical variable, for example a resistance of a conductor or a conductor shield, which is in a fixed relationship with an analog electrical variable that is relevant to the transferred electrical energy, for example an ohmic total resistance of at least two conductors involved in a charging circuit.

An electronic power connector including a contact configured to electrically connect a power supply to a load. The electronic power connector further including a contact core configured to receive the contact, the contact core including a transformer winding wrapped around the contact core, the transformer winding configured to sense a current.

An electronic power connector including a contact configured to electrically connect a power supply to a load. The electronic power connector further including a contact core configured to receive the contact, the contact core including a transformer winding wrapped around the contact core, the transformer winding configured to sense a current.