A clip-on ammeter includes a current measurement unit, an evaluation unit and a USB interface. The current measurement unit records current values and provides the current values as measurement values for transfer purposes. The evaluation unit includes an ND converter and is connected to the current measurement unit. The evaluation unit allows the measurement values to be transmitted in a processable form as USB compatible digital data to the USB interface. The USB interface is connected to the evaluation unit and the USB interface allows the USB compatible data to be made available for transfer purposes to be further processed. The evaluation unit is energized via the USB interface. The clip-on ammeter includes a voltage transformer. The voltage transformer provides a stabilized voltage as a reference voltage for the current measurement unit.

A clip-on ammeter includes a current measurement unit, an evaluation unit and a USB interface. The current measurement unit records current values and provides the current values as measurement values for transfer purposes. The evaluation unit includes an ND converter and is connected to the current measurement unit. The evaluation unit allows the measurement values to be transmitted in a processable form as USB compatible digital data to the USB interface. The USB interface is connected to the evaluation unit and the USB interface allows the USB compatible data to be made available for transfer purposes to be further processed. The evaluation unit is energized via the USB interface. The clip-on ammeter includes a voltage transformer. The voltage transformer provides a stabilized voltage as a reference voltage for the current measurement unit.

An autoranging ammeter with fast dynamic response allows improved dynamic measurement of rapidly changing direct electrical currents. The ammeter utilizes a low-cost dual threshold comparator mechanism coupled with an analog-to-digital converter and digital processing to rapidly select the appropriate current shunt resistor.

An autoranging ammeter with fast dynamic response allows improved dynamic measurement of rapidly changing direct electrical currents. The ammeter utilizes a low-cost dual threshold comparator mechanism coupled with an analog-to-digital converter and digital processing to rapidly select the appropriate current shunt resistor.

A load sensing circuit includes a load coupled to a load source having a load voltage that causes a load signal to flow through the load. A regulated sink circuit is coupled in series to a sink source and the load, and provides a sink voltage. A comparison circuit a reference signal that establishes a reference value of a second electrical characteristic at a reference input; a sense input is coupled to the load and to the regulated sink circuit. The regulated sink circuit regulates the first electrical characteristic of the load signal, based on a regulation signal, so that a sense value of the second electrical characteristic present at the sense input matches the reference value of the second electrical characteristic. A comparison signal is generated at an output of the comparison circuit, and indicates a difference between the sense value of the second electrical characteristic and the reference value of the second electrical characteristic. A feedback circuit coupled to the comparison output and to the regulated sink circuit, generates the regulation signal based on the comparison signal.

A load sensing circuit includes a load coupled to a load source having a load voltage that causes a load signal to flow through the load. A regulated sink circuit is coupled in series to a sink source and the load, and provides a sink voltage. A comparison circuit a reference signal that establishes a reference value of a second electrical characteristic at a reference input; a sense input is coupled to the load and to the regulated sink circuit. The regulated sink circuit regulates the first electrical characteristic of the load signal, based on a regulation signal, so that a sense value of the second electrical characteristic present at the sense input matches the reference value of the second electrical characteristic. A comparison signal is generated at an output of the comparison circuit, and indicates a difference between the sense value of the second electrical characteristic and the reference value of the second electrical characteristic. A feedback circuit coupled to the comparison output and to the regulated sink circuit, generates the regulation signal based on the comparison signal.

The present disclosure relates to an apparatuses and methods for memory management and more particularly to voltage or current detector for a non-volatile memory component that is coupled to a host device or to a System-on-Chip. The memory component includes a memory controller and comprises a voltage or current detector including: a comparator receiving on a voltage input a voltage value Vx; a digital to analog converter coupled to a reference voltage potential and having an output connected to other input of said comparator; a Finite State Machine receiving the output of said comparator and producing digital outputs for the inputs of said memory controller; a current to voltage converter receiving as input a current value Ix to be detected and having an output connected to said Finite State Machine.

The present disclosure relates to an apparatuses and methods for memory management and more particularly to voltage or current detector for a non-volatile memory component that is coupled to a host device or to a System-on-Chip. The memory component includes a memory controller and comprises a voltage or current detector including: a comparator receiving on a voltage input a voltage value Vx; a digital to analog converter coupled to a reference voltage potential and having an output connected to other input of said comparator; a Finite State Machine receiving the output of said comparator and producing digital outputs for the inputs of said memory controller; a current to voltage converter receiving as input a current value Ix to be detected and having an output connected to said Finite State Machine.

The present disclosure pertains to systems and methods for measuring electrical parameters in an electric power system. In one embodiment, a system may include a line-mounted wireless current sensor comprising a current monitoring subsystem to generate a current measurement of an alternating current flow through an electrical conductor. The line-mounted wireless current sensor may harvest power from the electrical conductor. A processing subsystem may generate a message comprising the current measurement, and the message may be transmitted at a synchronization point using a wireless communication subsystem. An intelligent electronic device (IED) may receive the message. The IED may further generate a voltage and generate a phasor based on the current measurement and the voltage measurement. A control action subsystem may implement a control action (e.g., selectively connecting or disconnecting a capacitor bank) based on the phasor.

An impedance sensing circuit includes first and second current sources and first and second bias current sources that are appropriately coupled to first and second resistors. The impedance sensing circuit also includes a comparator that compares a first voltage based on the first terminal of the first resistor to a second voltage based on the first terminal of the second resistor to generate a comparator output signal. Either the comparator output signal or a digital signal based on the comparator output signal operates to regulate the current signals output from the first and second current sources so that the first voltage is same as the second voltage. The comparator output signal and the digital signal is representative of a difference between the first voltage and the second voltage that is based on an impedance difference between the first resistor and the second resistor.