The present disclosure provides a display panel static electricity protection device (400), a display panel static electricity protection method, and a display device (100), including a detection circuit (401), a discharge circuit (409), and a discharge terminal (411). The detection circuit (401) is connected with a driving chip (301) of a display panel. The discharge circuit (409) is connected with the detection circuit (401) and the driving chip (301). The discharge terminal (411) is connected with the discharge circuit (409) and the detection circuit (401).

A system-in-package includes a function circuit and a protection circuit that protects the function circuit by preventing an instantaneous transient voltage from being applied to the function circuit. Here, the protection circuit includes a TVS diode and a capacitor. The TVS diode includes an anode that receives a ground voltage and a cathode that is connected to a first external connection terminal. The capacitor includes a first terminal that is connected to a second external connection terminal electrically separated from the first external connection terminal and a second terminal that receives the ground voltage.

The invention relates to an arrangement for overload protection of overvoltage protection devices, consisting of at least one type II surge arrester with or without a thermal disconnecting device that responds in the event of an of overload. According to the invention, a switching unit free of movable contacts is connected in series with the at least one surge arrester and structurally combined therewith, which switching unit has at least two fixed narrow spaced switching contacts, wherein the spacing of the switching contacts is specified in such a way that in the event of every surge current or discharge process, the switching device changes into a quasi-closed state because of the arc formed; whereas in the idle state, the voltage of the connected mains drops at the switching device, with the surge arrester arranged in series remaining free of leakage current.

Reduced flyback electrostatic discharge (ESD) surge protection is disclosed. An ESD protection circuit differentiates ESD events from normal power on based on supply rise time. During an ESD protection cycle, the ESD protection circuit briefly clamps a supply on an identified ESD edge to limit and protect an electronic device from high voltage and/or current. In some cases, a surge condition may occur as the ESD protection circuit becomes disabled, such as in the presence of a fast rise time power supply. When the power supply is also inductive, a flyback voltage overshoot at the sudden release of the ESD clamp can result in permanent over voltage-related device damage. An exemplary ESD protection circuit includes a controlled disable state which reduces or eliminates flyback during such a surge by gradually ramping down current from the ESD protection cycle.

Techniques are described to slow the turn off of a pass transistor coupled to an inductive load and being controlled by a hot swap or switch controller in the event of a fault on the load side. Active circuitry can control the gate of the pass transistor, e.g., field-effect transistor (FET), as the inductive load de-energizes and a feedback loop can servo the gate voltage of the pass transistor in order to ensure that its source does not go below a reference voltage.

A bidirectional flat clamp device includes a first device node and a second device node. The bidirectional flat clamp device also includes a first switch and a second switch coupled in series between the first and second device nodes. The bidirectional flat clamp device also includes at least one switch driver coupled to the first and second switches. The bidirectional flat clamp device also includes a first current path between the first and second device nodes, the first current path having a first diode, a voltage sensor circuit, and a second diode. The bidirectional flat clamp device also includes a second current path between the first and second device nodes, the second current path having a third diode, the voltage sensor circuit, and a fourth diode.

A circuit for preventing sparks. The circuit having a power storage component having a first power storage end and a second power storage end; a power source electrically connected to the power storage component, the power source having a first power source end and a second power source end; a first current directional component electrically connected to the power storage component and having a first current direction; a first power absorption component electrically connected to the power storage component and having a current direction, the first current directional component and the first power absorption component being electrically connected to the power storage component in parallel; and at least one switch electrically connected to the power storage component.

Provided is an inrush current limiter and a system including the same, the inrush current limiter including first and second input nodes for receiving an input voltage from a power source, a first output node and a second output node for being connected with a load, an inrush-current-limiting portion including a transistor connected between the first input node and the first output node, and for turning on the transistor when a voltage level of the input voltage is higher than a first level, and for limiting an inrush current by controlling time until the transistor is turned on after application of the input voltage, a switch connected between a control terminal of the transistor and the second input node, and a mode controller for turning on the switch when the voltage level of the input voltage is lower than a second level that is lower than the first level.

An in-vehicle power supply system includes first to sixth power supply hubs connected to a main feed line, electronic devices connected to the first to sixth power supply hubs via a sub feed line, and a control device configured to control power feeding to the electronic devices. The control device is configured to control, based on a condition regarding a current consumption of the electronic devices, power feeding to the electronic devices such that the current consumption of the electronic devices is lower than an allowable current consumption that is predetermined in accordance with a scene of using a vehicle.

Embodiments of an ESD protection device are described. In an embodiment, an ESD protection device includes a first voltage rail electrically connected to a first node, a second voltage rail electrically connected to a second node, and ESD cells connected between the first and second voltage rails and configured to shunt current in response to an ESD pulse received between the first and second nodes. Each of the ESD cells includes clamp circuits electrically connected to the second voltage rail, ballast resistors connected between the first voltage rail and the clamp circuits, where at least some of the ballast resistors are electrically connected to a third voltage rail, a driver circuit connected between the second and third voltage rails and configured to generate a driver signal, and an output stage configured to generate an output signal in response to the driver signal.