6results about How to "Avoid charging" patented technology

This application discloses an auxiliary power supply module and a power distribution terminal, belonging to the field of power supply. The auxiliary power supply module includes a charging circuit, an energy storage unit, a power failure detection delay circuit, a boost circuit, and a power output terminal. The charging circuit is connected to the energy storage unit and is used to charge the energy storage unit using the main power supply voltage when the main power supply voltage is normal. The power failure detection delay circuit is connected to both the charging circuit and the boost circuit and is used to output a working voltage to the boost circuit when the main power supply voltage is less than a first target voltage for a target duration. The energy storage unit is connected to the boost circuit and is used to output a stored energy voltage to the boost circuit. The boost circuit is connected to the power output terminal and is used to supply power at the working voltage, converting the stored energy voltage into a supply voltage and providing it to the power output terminal. The supply voltage is used to power the power distribution terminal. This application can improve the service life of the auxiliary power supply module and improve the stability of power supply.

Disclosed is a display device including: a display panel including a display area provided with pixels and a non-display area provided around the display area; and at least one gate driver configured to apply a scan signal and a light emission signal to the pixels. The compensation capacitor is short-circuited during the light emission period, but is applied with a DC voltage during at least one other driving period.

The invention relates to a printing machine (01) designed as a sheet-fed printing press (01), having at least one printing head (09) and a roll unwinding device (24), wherein the printing machine (01) is provided with a transport path for transporting a printing substrate (02), and wherein the printing machine (01) has a central cylinder (07) as a printing substrate guide element (07), the printing head (09) being arranged pointing towards the central cylinder, and wherein the printing machine (01) has a charging device (03) having at least one charging electrode (04) designed as a DC voltage electrode (04), and wherein the region of the transport path for transporting the printing substrate (02) which is adjacent to the charging electrode (04) is arranged before the printing point (11) defined by the printing head (09), and wherein the central cylinder (07) is earthed, and wherein the printing head (09) is earthed, and wherein the minimum distance (c) between at least one spray opening (12) of the printing head (09) and at least one charging electrode (04) is at least 20 mm.

This invention relates to a mining positioning card and its charging protection method, belonging to the field of mining positioning card charging safety technology. The positioning card includes a charging detection module, a power management module, a battery pack unit, a main controller unit, and other functional units. The charging detection module receives power input from the charger, supplies power to the power management module, and detects the charging current and voltage. Based on the charging status, it outputs a first logic level signal to the power management module. The main controller unit performs protocol matching with the charger and outputs a second logic level signal to the power management module based on the protocol matching result. The power management module combines the first and second logic level signals to determine whether the battery pack unit is charging. This invention can protect the positioning card's mainboard components from damage caused by high voltage and high current, avoid affecting battery performance and lifespan, and ensure the positioning card operates normally, stably, and reliably underground.

The utility model discloses a novel sealing rubber ring for heat exchanger pipeline belongs to heat exchanger technical field, including clamping flange no.

This invention discloses a portable power unit and its crane. The battery is equipped with a temperature alarm module and is connected to a motor and a charging device via a circuit for storing and outputting electrical energy. The battery is also connected to a radiator via a circuit. The hydraulic pump includes at least one electronically controlled variable pump and at least one gear pump, and is connected to the crane's hydraulic system via hydraulic lines. The motor includes a drive motor that converts the electrical energy output from the battery into mechanical energy used by the hydraulic pump. The charging device includes a charging cable and a charger. This invention can be used in traditional fuel-powered cranes, overcoming the problems of expensive batteries and high costs associated with pure electric cranes. It also eliminates the need for complex chassis driving and onboard operation control systems. It can operate in pure electric or plug-in mode. In plug-in mode, it can effectively increase the continuous working time compared to pure electric cranes. Using plug-in mode avoids the need for the vehicle to be parked, turned off, and stopped for charging.