An electronic device includes a circuit board having a signal detection terminal disposed on a first surface thereof and a ground terminal disposed on a second surface thereof and extending vertically so that the first surface and the second surface face each other in a horizontal direction, a monitoring terminal connected with the signal detection terminal, and a microcontroller unit (MCU) determining whether there is submersion by monitoring a voltage at the monitoring terminal. According to the present embodiments, it is possible to prevent hypersensitivity-induced misdetection due to condensation and dew. It is also possible to stepwise respond to submersion and determine whether the monitoring circuit normally operates to precisely detect submersion.

Provided is a controller, an air conditioner, and a high-pressure protection circuit. The controller includes a first rectifier unit, a power conversion unit, a high pressure switch (HPS) wiring terminal, a low-voltage control unit, and a high-voltage operating unit. An input end of the first rectifier unit is capable of being electrically connected to an input power supply. An output end of the first rectifier unit is electrically connected to an input end of the power conversion unit. An output end of the power conversion unit is electrically connected to a power supply end of the low-voltage control unit. The HPS wiring terminal is connected to the front end of the power supply end of the low-voltage control. The controller has a function of high-pressure protection.

An electronic device according to various embodiments of the present invention may comprise: a housing; an interface connected to the housing or exposed through the housing and comprising at least one configuration channel (CC) pin; a circuit disposed inside the housing, comprising a current generator and a comparator, and electrically connected to the interface; a processor disposed inside the housing and operatively connected to the interface and the circuit; and a memory operatively connected to the processor. The memory cause the processor, when executed, to detect moisture corresponding to the at least one CC pin on the basis of the comparator while the at least one CC pin is connected to the current generator and to control at least one switch disposed between the current generator and the at least one CC pin, in response to detection of the moisture, thereby conducting switching such that the at least one CC pin is not connected to the current generator. Other embodiments are also possible.

A telecommunications cabinet (100) for enclosing telecommunications equipment (110) of a telecommunications network, the telecommunications cabinet comprising: an electric water pump (140); a water detector (160), wherein the water detector is configured to cause activation of the electric water pump upon detecting water; a power supply (150) for powering the electric water pump; and a fluid conduit (170), coupled to the electric water pump, extending from within the cabinet to an outside of the cabinet via an aperture (180) in the cabinet so as to convey water out of the cabinet.

A method for protecting a server from damage by a liquid leak from a liquid-cooling unit of the server is provided. The server further includes a liquid leak sensor unit, a programmable logic circuit, and a power supply unit that supplies main power and standby power for the server. When a liquid leak is detected, the liquid leak sensor unit generates a main-power-off signal to the programmable logic circuit that causes the power supply unit to stop outputting the main power accordingly. The liquid leak sensor unit sends a total-power-off signal to the power supply unit to stop supply of the standby power after the power supply unit has stopped outputting the main power.

A rapid pressure rise detection and management system that detects internal pressure changes in a transformer. The rapid pressure rise detection and management system communicates with one or more pressure sensors attached to a tank of the transformer and measures the rate of pressure change versus time. The rapid pressure rise detection and management system then compares this rate of pressure change against a set of parameters to determine if this pressure change is an internal fault requiring the transformer to be taken offline or external fault to be ignored. This rapid pressure rise detection and management system may be a standalone device or work with other monitoring/controlling equipment to expand its sensing and management capabilities.

An electronic device comprising a Printed Circuit Board (PCB), a battery for supplying power to the PCB and at least one moisture detection sheet mounted on the PCB and the PCB shuts off power from the battery in response to detected electrical current conduction via the at least one moisture detection sheet.

Methods and apparatuses for detecting when an electronic device, preferably a portable electronic device (PED) in some embodiments, has been exposed to moisture, and inhibiting the flow of electrical power to the electronic device when the moisture is too high or increasing too fast are disclosed. Embodiments sample air within the device, measure the moisture in the sampled air, inhibit the connection of electrical power to the device if the moisture exceeds a threshold, and permit the connection of electrical power to the device if the moisture is below a threshold. Some embodiments measure the moisture in the ambient air to improve effectiveness. Other embodiments allow resetting of a tripped condition. Other embodiments include constant sampling of air from within the device to assist drying, and inhibiting application of power to the device until the device is sufficiently dry. Still other embodiments interrupt power from the battery within the device.

An apparatus for controlling the electrical connection of an electrical load (2), which is arranged at a distance from the apparatus, to a control voltage source (4) which is associated with said electrical load, wherein control is performed by means of two control lines (6, 8) which bridge the physical distance between the apparatus and the load plus the control voltage source and which are connected to a control output (10, 12) of the apparatus, wherein the apparatus has a transducer (14) which detects the value of a state variable (16) of a fluid, and wherein control of the connection is performed depending on the respectively detected value of the state variable (16) exceeding and/or falling below a selectable threshold value, is characterized in that the transducer is formed by a measurement transducer (14) which converts the value of the respectively detected state variable (16) into an electrical signal (18), in that the apparatus has an electronics device (20) for evaluating said electrical signal (18) and for controlling the connection depending on the evaluation, in that the connection is made by means of a controllable electronic switching device (26), which is connected to the control output (10, 12), of the apparatus at least over a first predefinable time period, and in that the power supply device of the apparatus is fed from the voltage of the control voltage source (4) which is applied to the control output (10, 12) of the apparatus via the control lines (6, 8), depending on the switching state of the electronic switching device (26), at least over a further second time period which lies outside the first time period.

Embodiments are directed to apparatuses used with a computer-implemented method for controlling power flow to an electronic device, including: receiving a transmission from a service processing device, the transmission to trigger an open switch between the electronic device and a power supply; and causing an open switch to occur through use of an interlock mechanism. Embodiments provide a temperature-driven interlock mechanism and moisture-driven interlock mechanism.