An energy detection warning device includes a housing. An electronic indication component is disposed within the housing. One or more sensors are disposed within the housing and are configured to detect an energized conductor present within a particular proximity of a location of the energy detection warning device, and detect a direction in which the energized conductor is located with respect to the location of the energy detection warning device. The direction is an approximate direction. The device also includes a microcontroller configured to: receive input from the one or more sensors, and actuate the electronic indication component, in response to receipt of the input, to indicate the direction in which the energized conductor is located with respect to the location of the energy detection warning device.

An energy detection warning device includes a housing. An electronic indication component is disposed within the housing. One or more sensors are disposed within the housing and are configured to detect an energized conductor present within a particular proximity of a location of the energy detection warning device, and detect a direction in which the energized conductor is located with respect to the location of the energy detection warning device. The direction is an approximate direction. The device also includes a microcontroller configured to: receive input from the one or more sensors, and actuate the electronic indication component, in response to receipt of the input, to indicate the direction in which the energized conductor is located with respect to the location of the energy detection warning device.

An absence of voltage detection system has an isolation module connected to a voltage source to be detected an I/O accessory module connected to the isolation module wherein the I/O accessory module is configured to allow remote activation of the isolation module.

An absence of voltage detection system has an isolation module connected to a voltage source to be detected an I/O accessory module connected to the isolation module wherein the I/O accessory module is configured to allow remote activation of the isolation module.

Some aspects of this disclosure are directed to an automated method to check electrostatic discharge (ESD) effect on a victim device. For example, some aspects of this disclosure relate to a method, including determining a probe point, in a circuit design, for determining effective resistance between the probe point and ground, where the probe point is on an ESD path of in the circuit design. The method includes determining voltage between the probe point and the ground. The method further includes comparing, by a processing device, a resistance value of the ESD path determined based a predefined electric current value at a source point and the measured voltage with a target resistance value range. The method further includes reporting a violation upon determining that the determined resistance value of the ESD path is outside the target resistance value range.

Some aspects of this disclosure are directed to an automated method to check electrostatic discharge (ESD) effect on a victim device. For example, some aspects of this disclosure relate to a method, including determining a probe point, in a circuit design, for determining effective resistance between the probe point and ground, where the probe point is on an ESD path of in the circuit design. The method includes determining voltage between the probe point and the ground. The method further includes comparing, by a processing device, a resistance value of the ESD path determined based a predefined electric current value at a source point and the measured voltage with a target resistance value range. The method further includes reporting a violation upon determining that the determined resistance value of the ESD path is outside the target resistance value range.

The inventive glove provides a work glove that detects the presence of AC voltage without compromising its usability as a work glove. Embodiments of the inventive glove include monopole aerials extending into the fingers of the glove. A thin flexible dielectric layer sits between the aerials and inside of the glove, acting as an electrical barrier between the aerials and the user's hand. The aerials are connected to conventional voltage detector circuitry on a circuit board located on the back of the glove. The circuit board is grounded to the user's wrist, which enhances the circuitry's ability to detect the presence of nearby AC voltage at a safe distance.

The inventive glove provides a work glove that detects the presence of AC voltage without compromising its usability as a work glove. Embodiments of the inventive glove include monopole aerials extending into the fingers of the glove. A thin flexible dielectric layer sits between the aerials and inside of the glove, acting as an electrical barrier between the aerials and the user's hand. The aerials are connected to conventional voltage detector circuitry on a circuit board located on the back of the glove. The circuit board is grounded to the user's wrist, which enhances the circuitry's ability to detect the presence of nearby AC voltage at a safe distance.

Disclosed is a power failure detection device and method capable of issuing a power failure alert early. The device includes a voltage reduction circuit, a detection voltage generating circuit, a detection circuit, and a transmitting circuit. The voltage reduction circuit is or includes at least one active electronic component, and generates an output voltage according to an input voltage higher than the output voltage. The detection voltage generating circuit is coupled between the voltage reduction circuit and a low voltage terminal, and generates a detection voltage according to the output voltage that is between the output voltage and the voltage of the low voltage terminal. The detection circuit generates a detection result according to the detection voltage and a trigger voltage. The transmitting circuit sends a power failure alert to a far-end device on condition that the detection result indicates that the detection voltage is lower than the trigger voltage.

A True Wireless System (TWS)headphone is provided, which comprises a charging case and one or two earbuds. The earbuds may be attached into the charging case by a two pogo pin connector. The earbuds can detect the different status of the battery in the charging case via the two pogo pin connector and can auto power on or off accordingly when taken out or put into the charging case.