A sensor/transducer for use in reducing leakage current from a patient fluidly connected to a medical device by tubing filled with a conductive fluid (e.g., blood or dialysate (a “fluid line”)) includes a magnetically conductive core with 1) a centrally located support for a coil of fluid line, and 2) coiled electrical conductors located at positions that are spaced from the centrally located support, on opposite sides of the centrally located support. The sensor/transducer can be used to measure leakage current carried by the conductive fluid in the fluid line, or it can be used to induce current in the fluid line in a manner that reduces the leakage current.

A sensor/transducer for use in reducing leakage current from a patient fluidly connected to a medical device by tubing filled with a conductive fluid (e.g., blood or dialysate (a “fluid line”)) includes a magnetically conductive core with 1) a centrally located support for a coil of fluid line, and 2) coiled electrical conductors located at positions that are spaced from the centrally located support, on opposite sides of the centrally located support. The sensor/transducer can be used to measure leakage current carried by the conductive fluid in the fluid line, or it can be used to induce current in the fluid line in a manner that reduces the leakage current.

The present disclosure relates to a detection circuit, an appliance, and a control method. The detection circuit includes at least a first capacitive component, a second capacitive component, a load to be detected and a detection component, where the first capacitive component is connected in series with the load to be detected to form a first branch, and the first branch is connected in parallel with a second branch including the second capacitive component. The detection component is configured to detect a first alternating current (AC) signal of the first branch and a second AC signal of the second branch, determine a first direction of the first AC signal and a second direction of the second AC signal, and determine a type of the load to be detected based on the first direction and the second direction.

A system may include a device that controls power to an electrical component of an electrical power distribution system. The system may also include a voltage detection device that may detect a presence of a voltage within a distance. The system may further include a control system that may receive location information via a receiver communicatively coupled to the control system, and adjust more operations of the device based on at least in part of the location information. The location information may be transmitted by the voltage detection device in response to detecting that the presence of the voltage is within the distance. The location information may correspond to the electrical component.

A system may include a device that controls power to an electrical component of an electrical power distribution system. The system may also include a voltage detection device that may detect a presence of a voltage within a distance. The system may further include a control system that may receive location information via a receiver communicatively coupled to the control system, and adjust more operations of the device based on at least in part of the location information. The location information may be transmitted by the voltage detection device in response to detecting that the presence of the voltage is within the distance. The location information may correspond to the electrical component.

A gate driver circuit includes at least one driver configured to generate a first gate control signal for a first power disconnect switch and a second gate control signal for a second power disconnect switch in parallel with the first power disconnect switch, and logic configured to implement a delayed turn on time for the second gate control signal compared to the first gate control signal such that the first power disconnect switch turns on before the second power disconnect switch when powering up a load coupled to the first and the second power disconnect switches. The gate driver circuit logic may also be configured to implement a delayed turn off time such that the first power disconnect switch turns off before the second power disconnect switch when powering down the load. Corresponding power conversion circuits, electronic systems, and methods of power disconnect switch control are also described.

A gate driver circuit includes at least one driver configured to generate a first gate control signal for a first power disconnect switch and a second gate control signal for a second power disconnect switch in parallel with the first power disconnect switch, and logic configured to implement a delayed turn on time for the second gate control signal compared to the first gate control signal such that the first power disconnect switch turns on before the second power disconnect switch when powering up a load coupled to the first and the second power disconnect switches. The gate driver circuit logic may also be configured to implement a delayed turn off time such that the first power disconnect switch turns off before the second power disconnect switch when powering down the load. Corresponding power conversion circuits, electronic systems, and methods of power disconnect switch control are also described.

A fault current sensor for a fault current protection device for monitoring an electrical consumer for a vehicle is provided. The fault current sensor has a measuring device for measuring a differential current between a first electrical current in an electrical forward conductor, which conducts from a control device for controlling the electrical consumer to the electrical consumer, and a second electrical current in an electrical return conductor, which conducts away from the electrical consumer. The fault current sensor also has a reporting device for reporting a fault current at the control device via the forward conductor depending on a comparison of the measured differential current with a threshold value.

A fault current sensor for a fault current protection device for monitoring an electrical consumer for a vehicle is provided. The fault current sensor has a measuring device for measuring a differential current between a first electrical current in an electrical forward conductor, which conducts from a control device for controlling the electrical consumer to the electrical consumer, and a second electrical current in an electrical return conductor, which conducts away from the electrical consumer. The fault current sensor also has a reporting device for reporting a fault current at the control device via the forward conductor depending on a comparison of the measured differential current with a threshold value.

The present application discloses a method and device suitable to perform the method for operating Voltage Indication system (VIS) and partial discharge module (PD) for medium-voltage or high voltage apparatuses, comprising: monitoring, with the partial discharge-module (PD), provided in low-voltage section, whether partial discharge occurs within a dielectric of the high-voltage or medium-voltage apparatus or system, the partial discharge-module or VIS being electrically connected to a coupler provided in the medium-voltage or high-voltage apparatus; indicating with the Voltage Indication System (VIS), provided in a low-voltage portion, the presence of operating voltages in high-voltage or medium-voltage apparatus or system, Voltage Indication System (VIS) being electrically connected with partial discharge-module (PD) and deactivating by deactivation module connected to Voltage Indication System and partial discharge-module (PD) an optical display in the Voltage Indication System (VIS) during partial discharge measurements.