Abstract: The present disclosure provides a three dimensional integrated circuit having a plurality of dies. Each die includes a trigger line common to the other dies, and an ESD detection circuit coupled to the common trigger line and to a first power line common to the other dies, wherein when the ESD detection circuit of one of the plural dies detects an ESD event, the ESD detection circuit is configured to generate a control signal to the common trigger line to control a power clamp in each of the plural dies to clamp an ESD event to the common first power line or a second power line.

Abstract: A protection circuit of a semiconductor device includes a high electron mobility transistor and a protection element. Between the drain and the gate of the high electron mobility transistor, the protection element includes: a thyristor; and a first resistor connected in series to the thyristor. Between the source and the gate of the high electron mobility transistor, the protection element includes: a second resistor and an interrupter that is connected in series to the second resistor. The interrupter interrupts a flow of a current between the drain and the gate when the thyristor is turned off, and the interrupter permits the current to flow between the drain and the gate when the thyristor is turned on.

Abstract: A cascode switch device includes a cascode circuit, which includes a first switch and a second switch, and a protection circuit. The protection circuit is coupled between the first switch and the second switch. A first leakage current passing through the protection circuit is greater than or equal to a difference between a second leakage current and a third leakage current, and is smaller than an upper limit value of a leakage current of the cascode circuit. An upper limit value of a withstanding voltage is present between the first terminal and the control terminal of the first switch. When the first switch operates at the upper limit value of the withstanding voltage, the second leakage current is an upper limit value of a leakage current passing through the first switch, and the third leakage current is a lower limit value of a leakage current passing through the second switch.

Abstract: A conventional power supply device has a problem in miniaturization. A power supply device generates a prediction value of an error signal from first and second error signals, and controls an output voltage so that the prediction value lies between first and second threshold values. The first error signal is obtained by converting an error voltage based on the difference between the output voltage and a reference voltage at a first timing. The second error signal is obtained by converting an error voltage based on the difference between the output voltage and the reference voltage at a second timing.

Abstract: Method and system for Single Event Latchup (SEL) current surge mitigation involves monitoring data signals for a protected device and deriving from them a detected signature comprised of one or more detected signature vector components. The detected signature vector components are compared to previously stored signature vector components. Based on the comparing, the system selectively differentiates between the occurrence of standard power surges associated with normal operation of the protected device, and a non-standard current surge which requires cycling power of the protected device for continued proper functioning of the protected device.

Abstract: In a multilayer printed circuit board (circuit board 20) having an inverter (switching elements 22) mounted thereto, only a second wiring pattern P2 arranged downstream of a semiconductor relays 24 and able to shut off an electric power supply and a third wiring pattern P3 arranged upstream of a shunt resistor 27 and able to detect an overcurrent are placed in adjacent layers in a manner to face each other, and thus, even if the mutually facing portions (laminated portion) of the these two wiring patterns P2 and P3 are subjected to short circuit, an overcurrent caused by the short circuit can be detected by the shunt resistor 27 and the electric power supply to the switching elements 22 can be shut off by the switching elements 22, so that overheating at the second and third wiring patterns P2 and P3 can be avoided.

Abstract: The control circuit includes first and second primary terminals for connection to a DC network, a secondary terminal connected in series between the first and second primary terminals and at least one auxiliary energy conversion element and an auxiliary terminal. The first and second primary terminals have a plurality of modules and a plurality of primary energy conversion elements connected in series therebetween to define a current transmission path, each module including at least one energy storage device, each energy storage device being selectively removable from the current transmission path.

Abstract: A device for protecting a circuit of a battery for a vehicle having an operating current direction, having a control device for providing a control signal, which represents a direction of the current flow through the circuit and a switching element that is designed to interrupt the circuit depending on the control signal in order to protect the circuit.

Abstract: A method of fabricating an overvoltage protection device and an over-voltage circuit protection device are provided. The over-voltage circuit protection device includes a plurality of transient voltage suppression (TVS) devices coupled in electrical parallel.

Abstract: An electro-static discharge (ESD) protection circuit is configured to protect circuitry during an ESD event. The ESD protection circuit includes an ESD detection circuit and an ESD clamp circuit. The ESD clamp circuit includes a stack of transistors that is controlled by the ESD detection circuit. A first stack transistor of the stack of transistors includes a deep n-well. The stack of transistors is configured to be activated responsive to detecting the ESD event. The stack of transistors is configured to be deactivated responsive to detecting at least one of normal current conditions or normal voltage conditions. The ESD detection circuit includes a string of diodes. The string of diodes is configured to be activated responsive to detecting the ESD event. The stack of transistors is configured to be a voltage divider responsive to normal voltage conditions.

Abstract: An exemplary transformer protection system including a protective housing having a transformer which is arranged in the protective housing, a transformer core, and at least one primary-side electrical winding and a secondary-side electrical winding which is magnetically coupled to the primary-side electrical winding. The protection system also includes at least one detection apparatus for a measurement variable from which the occurrence of an interference arc within the protective housing can be derived, and an evaluation unit for generating a fault signal from the measurement variable of the at least one detection apparatus in the case of an interference arc. Further, the protection system includes at least one rapid-earthing apparatus for at least one of the electrical windings which is intended to be activated by the fault signal, wherein the rapid-earthing apparatus is designed in such a way that effective electrical earthing immediately after activation of the fault signal is ensured.

Abstract: In an embodiment, an integrated circuit (IC) may include a circuit block that couples to one or more pins of the IC to communicate and/or receive power on the pins. The circuit block may include a ground connection, which may be electrically insulated/electrically separate from the ground connection of other components of the integrated circuit. In an embodiment, the circuit block may include an ESD protection circuit for the pad coupled to the pin. The IC may include another ESD protection circuit for the pad. The circuit block's ESD protection circuit may be sized for the current that may produced within the circuit block for an ESD event, and the IC's ESD protection circuit may be sized for the current that may be produced from the other components of the IC.

Abstract: An audio signal that is output from a sound source circuit (14) is caused to flow through a coil (16) in a transducer for vibrating a soundboard, and the vibration of the soundboard generates an acoustic signal. A microcomputer (30) calculates a temperature of the coil (16) with high accuracy by inputting an ambient temperature (Ta) detected by an ambient temperature sensor (21) and a voltage (V) applied to the coil (16) and executing computation based on a thermal equivalent circuit of an acoustic signal converter using the ambient temperature and the voltage that are input thereto, the computation including calculation of an amount of electric power consumed in the coil (16) using the input voltage.

Abstract: An ESD protection circuit for an RF circuit includes first and second power supply voltage terminals for first and second power supply voltages and a power clamp coupled between the terminals. An RF input pad is configured to receive an input signal having an RF operating frequency. A resonance circuit is coupled to the RF input pad. A first ESD current path from the RF input pad to the first power supply voltage terminal includes the resonance circuit and a first ESD block configured to direct an ESD pulse of a first polarity toward the first terminal. A second ESD current path from the RF input pad to the second power supply voltage terminal includes the resonance circuit and a second ESD block configured to direct an ESD pulse of a second polarity toward the second terminal.

Abstract: An electrical power-supplying device for supplying electrical power to a group of electrical appliances located in an environment. The electrical power supplying device includes a power supply cord for plugging into a standard power receptacle by way of a power supply plug, and supplying AC electrical power to the device. The device includes a housing base portion having a central aperture providing access to a 3D interior volume bounded by a side wall extending circumferentially about the 3D interior volume and having a capacity for holding a plurality of power adapter modules and/or power adapter blocks associated with said group of electrical appliances located in the environment.

Abstract: A short-circuit protection method for a boost converter is disclosed. In this method, a switch of a switching circuit of the boost converter is turned on and a control voltage with a gradually increasing magnitude is supplied to control a short-circuit protection switch coupled between an input voltage and the switching circuit when the boost converter starts up. Then, a current flowing through the switch is detected and compared with a predetermined value. The switch is turned off and a preset time period is initiated if the current is higher than the predetermined value. It is detected whether a short-circuit event occurs at an output terminal of the boost converter at the end of the preset time period. If the short-circuit event occurs, the short-circuit protection switch is then turned off.

Abstract: One embodiment of a disclosed cable protection device connected between the positive and negative wires of the cable that provides an efficient method of protection from overheating of the device due to changes in temperatures with minimal power dissipation. The cable protection device includes a temperature monitoring device that continuously senses the temperature of the cable and device to check for overheating. A controller connected to the temperature monitor sends out an alarm message and a control signal to either an actuator circuit or a crowbar function circuit. The actuator circuit can send out current pulses to the adapter indicating the adapter to lower its current limit, so that the device can still keep charging and is not over heated. The crowbar function circuit causes the adapter to turn off power to the cable in order to provide burning of the device or connector due to overheating.

Abstract: A modular overvoltage protection unit for electrically connecting a first power line and/or a second power line to a protected earth (PE) line in the case of an overvoltage event on the first or second power line includes a unit enclosure defining an enclosure cavity, and first and second surge protection devices (SPDs) each disposed in the enclosure cavity. Each of the first and second SPDs includes: a first electrode in the form of a metal housing defining a housing cavity; a second electrode disposed within the housing cavity; and a varistor member captured between and electrically connected with each of the first and second electrodes, wherein the varistor member is formed of a varistor material.

Abstract: An over-current protection circuit includes a first connector, a first current measuring unit, a first switch unit, a first resistor unit, and a second connector. The first connector is electrically coupled to a power supply unit (PSU). When a current of the first resistor unit measured by the first current measuring unit is less than a first reference value, the first switch unit is turned on, and the second connector receives a first power supply from the PSU. When the current of the first resistor unit measured by the first current measuring unit is greater than or equal to the first reference value, the first switch unit is turned off, and the second connector does not receive the first power supply from the PSU.

Abstract: A programmable battery protection system. Implementations may include: a battery and a battery protection integrated circuit (IC) coupled with the battery that includes a reference voltage circuit, a variable resistor circuit coupled with the reference voltage circuit, and only two field effect transistors (FETs) coupled with the overcurrent detection circuit and with the battery. The reference voltage circuit and the variable resistor circuit may be configured to cause a current sense signal of the system to vary substantially linearly with changes in a supply voltage of the system.