A switched mode amplifier system may include a switched mode amplifier having an amplifier input coupled to an output of an analog integrator and an amplifier output, include a feedback network coupled between the amplifier output and an input of the analog integrator, and a calibration system. The calibration system may be configured to force the input of the analog integrator to a fixed known input value, force the amplifier output to a fixed known duty cycle, measure an analog signal generated at the output of the analog integrator in response to forcing the input of the analog integrator to the fixed value, determine an offset of the switched mode amplifier system based on the analog signal, and correct for the offset.

An object is to provide a sensor system comprising a sensor operating on a self-sustaining power source.

A sensor system comprising a plurality of sensors installed at different positions, each of the sensors including a first conductive part and a second conductive part, a medium, and a functional part, the first conductive part and the functional part being connected to each other, the second conductive part and the functional part being connected to each other, at least a part of the first conductive part and the second conductive part being in contact with the medium, the first conductive part and the second conductive part being not in contact with each other, and the sensor system being configured to detect that an internal impedance of one sensor and an internal impedance of another sensor satisfy a predetermined condition.

An object is to provide a sensor system comprising a sensor operating on a self-sustaining power source.

A sensor system comprising a plurality of sensors installed at different positions, each of the sensors including a first conductive part and a second conductive part, a medium, and a functional part, the first conductive part and the functional part being connected to each other, the second conductive part and the functional part being connected to each other, at least a part of the first conductive part and the second conductive part being in contact with the medium, the first conductive part and the second conductive part being not in contact with each other, and the sensor system being configured to detect that an internal impedance of one sensor and an internal impedance of another sensor satisfy a predetermined condition.

Provided are a load detection system and a load detection method thereof. The load detection system includes an adjustable power supply (110) and a detection module (12). The adjustable power supply (110) and a to-be-detected load 120 together form a set load detection circuit (11), and the adjustable power supply (110) is configured to output a changing power supply signal to the to-be-detected load (120) through the set load detection circuit (11). The detection module (12) is configured to detect at least two changing electrical parameters in the set load detection circuit (11), acquire an equivalent resistance value of the to-be-detected load (120) according to the at least two changing electrical parameters, and detect whether the to-be-detected load (120) includes a charging device according to a non-linear change curve or a linear change curve formed by the equivalent resistance value and the power supply signal.

Provided are a load detection system and a load detection method thereof. The load detection system includes an adjustable power supply (110) and a detection module (12). The adjustable power supply (110) and a to-be-detected load 120 together form a set load detection circuit (11), and the adjustable power supply (110) is configured to output a changing power supply signal to the to-be-detected load (120) through the set load detection circuit (11). The detection module (12) is configured to detect at least two changing electrical parameters in the set load detection circuit (11), acquire an equivalent resistance value of the to-be-detected load (120) according to the at least two changing electrical parameters, and detect whether the to-be-detected load (120) includes a charging device according to a non-linear change curve or a linear change curve formed by the equivalent resistance value and the power supply signal.

A modular power tile and method of operating a power distribution system includes generating a predetermined identifying pattern, by a reflectometry module of a power distribution node, injecting, by the reflectometry module, the predetermined identifying pattern, receiving, at the reflectometry module, a reflected incident signal of the predetermined identifying pattern, and scheduling a maintenance task.

A modular power tile and method of operating a power distribution system includes generating a predetermined identifying pattern, by a reflectometry module of a power distribution node, injecting, by the reflectometry module, the predetermined identifying pattern, receiving, at the reflectometry module, a reflected incident signal of the predetermined identifying pattern, and scheduling a maintenance task.

An insulation monitoring device, according to various embodiment of the present application, comprising an impedance formed between a power line and a ground of a system comprises, a signal generation circuit for applying a triangular wave signal to the power line through a signal measurement circuit, the signal measurement circuit for measuring a voltage difference across the detection resistor of the signal measurement circuit or a current flowing through the detection resistor when the triangular wave signal is applied to the impedance, a control circuit for obtaining an impedance value of the impedance based on at least one of the voltage difference and the current, and monitoring the impedance value.

An insulation monitoring device, according to various embodiment of the present application, comprising an impedance formed between a power line and a ground of a system comprises, a signal generation circuit for applying a triangular wave signal to the power line through a signal measurement circuit, the signal measurement circuit for measuring a voltage difference across the detection resistor of the signal measurement circuit or a current flowing through the detection resistor when the triangular wave signal is applied to the impedance, a control circuit for obtaining an impedance value of the impedance based on at least one of the voltage difference and the current, and monitoring the impedance value.

A series tee splitter comprises a primary electromagnetic transmission line and a secondary electromagnetic transmission line that is placed in a series path with the primary electromagnetic transmission line, wherein a load is attached to the end of the secondary electromagnetic transmission line and a network analyzer is connected to opposite ends of the primary electromagnetic transmission line to measure a load impedance. This configuration increases the high impedance measurement limit of the network analyzer normally seen for reflection measurements. The series tee splitter can be electrically small to provide broadband impedance information.