A smart powerline event and health monitoring device (SEHM) structured to be disposed in a power distribution system for a building structure located in a utility system is provided. The SEHM includes: a voltage measurement device connected to line conductors and structured to measure changes in line voltages and frequencies; a surge protection device (SPD) connected to the line conductors and the neutral conductor and structured to shunt electrical energy from a voltage surge to the neutral conductor; a controller connected to the voltage measurement device and the SPD and structured to receive the measured changes from the voltage measurement device; and a communication module connected to the controller, the communication module communicatively coupled to a cloud and a mobile user device having an energy monitoring application installed therein, the communication module structured to transmit the data to the cloud in a wireless connection.

In an identification information receiving device connected to an identification information transmitting device by a power line, a measurement value obtainment unit obtains a measurement value of an electric current or a voltage in the power line. An identification information reading unit reads, as binary data, identification information defined by a plurality of bits and superimposed on the electric current or the voltage in the power line by the identification information transmitting device, by determining whether the measurement value corresponding to each bit of the identification information is greater or less than a determination threshold value (other than 0). A threshold value setting unit sets the determination threshold value on the basis of an initial threshold value (other than 0) and the measurement value corresponding to each bit of threshold value verification information defined by a plurality of bits and superimposed on the electric current or the voltage in the power line by the identification information transmitting device before the identification information.

A voltage detection circuit includes a modulation signal generator, an AD converter, a current source, a differentiator, a multiplier, and an integrator. The modulation signal generator generates a modulation signal. The AD converter converts a voltage applied between a first input wiring and a second input wiring into a digital value. The current source supplies a first current to the first input wiring and supplies a second current to the second input wiring. The first current changes based on the modulation signal, and the second current changes based on the modulation signal. The differentiator outputs a value acquired by differentiating an output value of the AD converter. The multiplier multiplies an output value of the differentiator by a value that varies positively and negatively according to the modulation signal. The integrator integrates an output value of the multiplier.

An operating device has a first microcontroller, having at least one first measurement input, is adapted to detect a measurement potential at the first measurement input and to output an associated detection result that depends on the respective measurement potential; a voltage source having a supply voltage; a resistor network to apply the supply voltage, wherein the first measurement input is connected to a first tap; at least one switching element integrated in the resistor network, the switching state of the switching element is changed by operation by an operator; wherein the resistor network is adapted such that a different switching potential at the first measurement input is assigned to the respective switching state; a second microcontroller, superordinate to the first microcontroller is adapted to receive the respective detection result from the first microcontroller and to output said detection result to a superordinate control unit.

A device for testing a voltage level in an electrical terminal cavity including a testing body and a probe for contacting the electrical terminal cavity. The probe includes a tip portion having a first cross-sectional area, a base portion having a second cross-sectional area, and an intermediate portion extending from the tip portion to the base portion having a third cross-sectional area. The first cross-sectional area is smaller than the third cross-sectional area, the third cross-sectional area is smaller than the second cross-sectional area, and the intermediate portion is concentric with the tip portion and the base portion. An axis extends between a center of the tip portion, a center of the intermediate portion, a center of the base portion, and a center of the testing body. The device also includes a circuit operatively coupled with the probe to sense the voltage level in the electrical terminal cavity.

Solutions for capacitive height sensing (CHS) can include a multi-phase charge-to-voltage (C2V) converter. In some examples, a measurement cycle may begin with a coarse phase using a first voltage step and transition to a fine phase using a second, smaller voltage step. Control logic can be configured to manage the voltage steps and integrate charge from a variable capacitor associated with a head gimbal assembly (HGA). In some embodiments, an offset circuit may be used to increase measurement sensitivity. An output signal based on the integrated voltage may be indicative of the HGA's height.

A voltage monitoring system and a method for harvesting energy is disclosed. A system includes a ring oscillator circuit, which incorporates delay line circuit composed of series of inverting logic gates. The final inverting logic gate forms self-oscillating feedback loop by connecting its output to the input of the first logic gate. To interface with ring oscillator circuit, transistor-based voltage divider circuit is implemented. The transistor-based voltage divider circuit utilizes multiple diode-connected transistor devices, with bulk terminals interconnected to the respective source terminals. Enable signal controls final diode-connected transistor device at its gate terminal. Furthermore, a voltage-level shifter circuit is connected to output of inverting logic gates, enabling seamless integration with ring oscillator circuit. Finally, a counter circuit is linked to voltage-level shifter circuit, utilizing its output terminal. The counter circuit is connected to external system responsible for harvesting energy, which powers the computational task performed by the system.

The embodiment the disclosure provides a monitoring circuit and a storage system. The monitoring circuit includes a voltage detection module and a logic circuit module. The voltage detection module is configured to output a first detection signal, a second detection signal and a third detection signal through a first node, a second node and a third node, respectively. The logic circuit module is configured to output a monitoring signal through a fourth node; determine whether the first detection signal has a first preset level, whether the second detection signal has a second preset level, and whether the third detection signal has a third preset level, respectively; determine the monitoring signal to be in a valid state in response to the first detection signal having the first preset level, the second detection signal having the second preset level and the third detection signal having the third preset level.

A method can include receiving, in a socket, a semiconductor device package, wherein the socket includes two or more second electrical contacts positioned to connect two or more first electrical contacts of the semiconductor device package to a second voltage source. The method can also include connecting, by two or more resistors, the two or more first electrical contacts of the semiconductor device package to a first voltage source. The method can additionally include indicating, by a logic circuit, a status of a first connection of the two or more first electrical contacts to the second voltage source based on a voltage of a second connection of the two or more resistors to the first voltage source. Various other methods and systems are also disclosed.

A voltage detection method includes: outputting a corresponding one of voltages to be an input voltage according to a clock signal, a first detection signal, a reset signal and multiple first bits; generating the reset signal according to the clock signal and multiple currents, wherein the voltages and the currents are generated based on a power supply voltage; comparing the input voltage with a reference voltage to generate a second detection signal, and generating the first detection signal according to the second detection signal and an enable signal; and adjusting the first bits by a digital circuit according to the second detection signal during a trimming phase to determine the first bits, and outputting the first bits by the digital circuit and resetting the digital circuit according to the first detection signal during a voltage detection phase.