Abstract: A circuit includes input terminals adapted to be coupled to a battery; a ground terminal; and an electrostatic discharge (ESD) protection circuit coupled to the input terminals. The ESD protection circuit includes: a switch coupled between the ground terminal and the input terminals; and a control circuit coupled to the input terminals and to the switch. The control circuit is configured to: detect an ESD event at one of the input terminals; detect a transient voltage at one of the input terminals, in which the transient voltage is caused by an initial coupling of that input terminal to the battery; detect a condition in which the switch has been closed for longer than a threshold amount of time; close the switch responsive to the detected ESD event; and open the switch responsive to the detected transient voltage or the detected condition.

Abstract: The present disclosure relates to a body fluid collection device (1), the body fluid collection device (1) comprises a tube body (10), wherein the tube body (10) is used to contain the collected body fluid and is provided with an opened end (12); a tube plug (20), wherein the tube plug (20) is configured to be able to hermetically close the opened end (12) of the tube body (10); and a filter (30), wherein the filter (30) is arranged in the tube body (10) for filtering out specific components from a body fluid to be collected, wherein the filter (30) is configured to be capable of being attached to the tube plug (20) at the open end, and the tube plug (20) is hermetically connected to the filter (30).

Abstract: The present disclosure relates to the field of oilfield plugging agents, and in particular to a plugging agent for oil extraction in an oilfield and a preparation method therefor and an application thereof.

Abstract: A circuit includes input terminals adapted to be coupled to a battery; a ground terminal; and an electrostatic discharge (ESD) protection circuit coupled to the input terminals. The ESD protection circuit includes: a switch coupled between the ground terminal and the input terminals; and a control circuit coupled to the input terminals and to the switch. The control circuit is configured to: detect an ESD event at one of the input terminals; detect a transient voltage at one of the input terminals, in which the transient voltage is caused by an initial coupling of that input terminal to the battery; detect a condition in which the switch has been closed for longer than a threshold amount of time; close the switch responsive to the detected ESD event; and open the switch responsive to the detected transient voltage or the detected condition.

Abstract: A low dropout regulator includes a first transistor having a first drain/source terminal coupled to an input terminal of a regulator, and a second drain/source terminal coupled to an output terminal of the regulator, a second transistor having a first drain/source terminal coupled to the input terminal of the regulator, and a second drain/source terminal coupled to the output terminal of the regulator through a resistor, and an error amplifier having an inverting input configured to receive a reference, a non-inverting input configured to detect an output voltage of the regulator, and an output coupled to gates of the first transistor and the second transistor.

Abstract: An ESD protection apparatus includes a discharge resistor and a transistor connected in series between a first voltage rail and a second voltage rail, a first coupling capacitor, a diode and a first bias resistor connected in series between the first voltage rail and the second voltage rail, wherein a common node of the diode and the first bias resistor is connected to a gate of the transistor, and an ESD protection device connected between the first voltage rail and the second voltage rail.

Abstract: A signal processing apparatus includes a signal processing circuit configured to process a signal obtained from a voltage bus, a high voltage circuit configured to withstand a voltage stress when a high voltage is applied to the voltage bus, and a bypass circuit configured to bypass the high voltage circuit when a low voltage is applied to the voltage bus.

Abstract: A lighting or signaling device comprises a first light source and a housing, the housing defining at least a first light exit region and a second light exit region independent of each other, part of light from the first light source exiting as a first light beam from the first light exit region; the lighting or signaling device further comprises a light guide member, which is assigned to the first light source and is positioned and configured to guide a part of the light from the first light source to exit through at least the second light exit region. A motor vehicle is also disclosed.

Abstract: A light-emitting assembly, a method for adjusting the light-emitting assembly, and a vehicle. The light-emitting assembly is used for a vehicle and includes a seat and a support, a light-emitting module being held on the support. A first adjustment mechanism is provided for performing a first adjustment on the light-emitting module, and a second adjustment mechanism is provided for performing a second adjustment on the light-emitting module. The support and the seat are pivotally connected together, so that the support can pivot around a horizontal axis under the action of the first adjustment mechanism.

Abstract: An apparatus includes a first diode and a second diode connected in series between a first voltage terminal and a second voltage terminal, a switch connected between the first voltage terminal and the second voltage terminal, and a clamping threshold circuit connected between a common node of the first diode and the second diode, and a gate of the switch, wherein the clamping threshold circuit is configured such that in response to a voltage surge applied to the common node of the first diode and the second diode, the switch is turned on once the voltage surge is greater than a predetermined threshold.

Abstract: An apparatus includes a first diode and a second diode connected in series between a first voltage terminal and a second voltage terminal, a switch connected between the first voltage terminal and the second voltage terminal, and a clamping threshold circuit connected between a common node of the first diode and the second diode, and a gate of the switch, wherein the clamping threshold circuit is configured such that in response to a voltage surge applied to the common node of the first diode and the second diode, the switch is turned on once the voltage surge is greater than a predetermined threshold.

Abstract: An apparatus includes a first drain/source region and a second drain/source region surrounded by an isolation ring formed over a substrate, the isolation ring formed being configured to be floating, and a first diode connected between the substrate and the isolation ring, wherein the first diode is a Schottky diode.

Abstract: A surge protection device for providing bidirectional detections of one or more surge events. The device has low dynamic resistance during a surge protection mode, and it conducts ultra-low leakage current outside of the surge protection mode. In one implementation, the device includes first and second power transistors, a sensing circuit, and a driver circuit. The first power transistor includes a first source terminal that is coupled to the substrate, and the second power transistor includes a second source terminal that is coupled to the substrate. The sensing circuit is configured to detect a voltage of the first pin relative to the second pin and generate a sense signal when the voltage exceeds a threshold. The driver circuit is configured to generate a driver signal based on the sense signal and output the driver signal to at least one of the first or second gate terminal.

Abstract: 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.

Abstract: A lighting or signaling device (100) comprises a first light source (101) and a housing (110), the housing (110) defining at least a first light exit region (120) and a second light exit region (130) independent of each other, part of light from the first light source (101) exiting as a first light beam from the first light exit region (120); the lighting or signaling device further comprises a light guide member (140), which is assigned to the first light source (101) and is positioned and configured to guide a part of the light from the first light source (101) to exit through at least the second light exit region (130). A motor vehicle is also disclosed.

Abstract: A circuit includes input terminals adapted to be coupled to a battery; a ground terminal; and an electrostatic discharge (ESD) protection circuit coupled to the input terminals. The ESD protection circuit includes: a switch coupled between the ground terminal and the input terminals; and a control circuit coupled to the input terminals and to the switch. The control circuit is configured to: detect an ESD event at one of the input terminals; detect a transient voltage at one of the input terminals, in which the transient voltage is caused by an initial coupling of that input terminal to the battery; detect a condition in which the switch has been closed for longer than a threshold amount of time; close the switch responsive to the detected ESD event; and open the switch responsive to the detected transient voltage or the detected condition.

Abstract: A lighting module used in a motor vehicle. The lighting module includes a housing and a light source assembly provided in the housing, wherein at least one thermal baffle is provided beside the light source assembly, and a thermal resistant layer is provided on at least one portion of the thermal baffle. The present utility model also provides a motor vehicle including the lighting module. The lighting module and the motor vehicle of the present utility model can reduce high temperature damage, and can have a low cost and a compact structure.

Abstract: 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.

Abstract: The present utility model discloses a light guiding device and a vehicle lamp. The light guiding device includes a light guide medium component configured to allow light to be transmitted through it from one end thereof to another end thereof. A light guide fixing component is arranged on the light guide medium component and configured to fix the light guide medium component, wherein the light guide medium component and the light guide fixing component are both at least partly made of a transparent material. The light guide fixing component has a light directing portion configured to direct the light leaked from the light guide medium component into the light guide fixing component to exit the light guide fixing component away from a predetermined direction. Using the light guiding device and the vehicle lamp according to the present utility model can prevent light exiting the light guide fixing component from forming undesirable light spots in an undesirable direction.