Systems, methods, and devices for fire control system power switching are described herein. One embodiment includes an alternating current (AC) power source, a battery, a notification component, and a control circuit, comprising an LLC circuit comprising an LLC controller component, a transformer component, a rectifier and feedback component, and an opto-coupler component. The LLC circuit can be configured to reduce an LLC output voltage from a first LLC voltage to a second LLC voltage while the notification component is using power supplied by the battery. The control circuit can include a battery-plane voltage transfer component configured to disconnect the battery from a plane voltage of the control circuit and an AC/DC-plane transfer component configured to connect the second LLC output voltage to the plane voltage to supply power from the AC power source.

A neck pillow includes: a cushion portion worn on a user's neck and an electro-liquid driving unit mounted into the cushion portion, being bent in a shape of an arc, and including ferroelectric particles, each having an electrorheological property, and nonconductive liquid. The electro-liquid driving unit generates vibration by contraction and expansion that are repeated when an arrangement of the ferroelectric particles and the nonconductive liquid is changed according to whether drive current is applied. A low voltage power supply unit supplies low voltage electricity necessary to drive the electro-liquid driving unit and a high voltage control circuit unit converts low voltage direct current into high voltage direct current and supplies the drive current to the electro-liquid driving unit and adjusting micro-current to generate target vibration in the electro-liquid driving unit.

This disclosure is directed to, among other things, techniques to quickly replenish a capacitance of a laser diode driver circuit after an optical pulse, which can enable a burst of pulses (more than one pulse), such as to enable pulse coding. An energy reservoir circuit can be coupled to a laser diode driver circuit and to a power supply circuit and configured to store enough energy to fire the RD laser diode driver more than once. The energy reservoir circuit can act as an intermediate interface between the RD laser diode driver and the power supply circuit to better optimize the current requirements of each block.

This disclosure is directed to, among other things, techniques to quickly replenish a capacitance of a laser diode driver circuit after an optical pulse, which can enable a burst of pulses (more than one pulse), such as to enable pulse coding. An energy reservoir circuit can be coupled to a laser diode driver circuit and to a power supply circuit and configured to store enough energy to fire the RD laser diode driver more than once. The energy reservoir circuit can act as an intermediate interface between the RD laser diode driver and the power supply circuit to better optimize the current requirements of each block.

A charging circuit and a charging cable. The charging circuit includes a first interface, a second interface, a detection control module, and a switch module. The first interface outputs a high-level signal through a first signal pin in a case of detecting that the first interface is plugged with a charger compatible with a fast charging protocol; and the detection control module controls the switch module to perform a preset operation in a case of detecting the high-level signal, so that the first signal pin and a second signal pin are connected, and ground and a bus are disconnected.

The disclosure provides a power switch that can be switched by a logic source in an ON or an OFF state. The switch comprises a component to output an optical signal responsive to the control signal and an optical sensitive device to react to the optical signal and self-conducting JFET in cascode configuration with the optical sensitive device.

A vehicle emergency start device and a wire clip device are provided. The vehicle emergency start device includes a switch module, a reverse connection protection module, an emergency start switch and an output module; the switch module is respectively connected to the emergency start power supply of the vehicle and the output module, and the reverse connection protection module is used for reverse connection detection and/or load detection; and the emergency start switch is connected to the switch module.

A vehicle emergency start device and a wire clip device are provided. The vehicle emergency start device includes a switch module, a reverse connection protection module, an emergency start switch and an output module; the switch module is respectively connected to the emergency start power supply of the vehicle and the output module, and the reverse connection protection module is used for reverse connection detection and/or load detection; and the emergency start switch is connected to the switch module.

A system and method for protecting an electronics module on a spacecraft in space are described. The system includes a non-radiation hardened electronics module electrically connected to a power supply, with a switch connected between the power supply and the electronics module. The switch can disconnect the electronics module from the power supply in response to an event signal. A sensor which is capable of detecting a solar proton event is connected to the switch. The sensor emits the event signal upon detection of the solar proton event.

A system and method for protecting an electronics module on a spacecraft in space are described. The system includes a non-radiation hardened electronics module electrically connected to a power supply, with a switch connected between the power supply and the electronics module. The switch can disconnect the electronics module from the power supply in response to an event signal. A sensor which is capable of detecting a solar proton event is connected to the switch. The sensor emits the event signal upon detection of the solar proton event.