3results about How to "Increase the supply voltage" patented technology

An electronic device can include a battery system that can be used to power the electronic device, the battery system including a battery management circuit and a battery cell, the battery management circuit can be integrated on a mainboard of the electronic device, the battery cell can be buckled with the mainboard through a connector, and the battery cell is electrically connected with the battery management circuit through the connector. In the battery system, a secondary recoverable protection device is arranged at the positive and negative terminals of the battery management circuit, so that when the battery management circuit is placed on a mainboard with a small interlayer thickness, various short circuit problems including interlayer short circuit of the mainboard can be avoided. Moreover, the layout and placement position of the battery cell and the mainboard can be diversified, and can be widely applied to new product architecture forms.

This invention proposes a brushless excitation load-reducing vertical synchronous motor with a disc spring floating exciter stator, belonging to the technical field of vertical synchronous motors. It solves problems such as high thrust bearing load, unreliable excitation system, disconnect between excitation and load reduction functions, exciter only having power generation function, and complex active control in existing vertical motors. It includes a thrust bearing assembly, a bearing housing, a thrust head, an exciter rotor, an exciter stator, a flexible assembly, a top cover, and a rectifier disk. The thrust bearing assembly is installed at the bottom of the bearing housing, the main motor shaft is installed in the middle of the bearing housing, the thrust head is installed on the outside of the main motor shaft, the exciter rotor is installed on the outside of the thrust head, the exciter stator is installed above the exciter rotor, the upper end of the exciter stator is connected to the flexible assembly, and the rectifier disk is installed on top of the thrust head. It is mainly used as a drive motor for heavy-load, high-axial-force, and continuous operation conditions such as vertical water pumps, vertical water turbines, and vertical axial-flow pumps.

The invention discloses a protection circuit and a band-gap reference circuit, the protection circuit is used for a to-be-protected circuit, the to-be-protected circuit comprises an input stage unit and an output stage unit, the output stage unit comprises a weak driving module, an auxiliary module and an output module, and the protection circuit comprises a first protection unit and a second protection unit. According to the protection circuit and the band-gap reference circuit, when the power supply generates negative noise interference, the first protection unit cuts off the path between the input stage unit and the power supply voltage, so that the power supply voltage of the input stage unit is maintained to be higher than the lowest working voltage required by the input stage unit in a short time; the input stage unit is ensured to be in a normal working state; for an output stage unit with an intermediate filtering node, the weak driving node is helped to be established to a correct level more quickly in the recovery process of the power supply voltage in a mode of locking the weak driving node charge by using a second protection unit.