5 results about "External resistance" patented technology

This utility model discloses an extrusion die with external resistance and internal increase to prevent tail shrinkage. It includes an upper die and a lower die that are fitted together. The lower die has a through-hole, and the discharge side of the die hole has a hollow section with an internal cross-section larger than that of the die hole. The upper die has a through-hole stepped inlet. From the inlet to the outlet, the stepped inlet forms multiple sequentially connected cross-sectional dimension changing segments. The internal cross-section of each segment decreases progressively, and resistance-increasing steps are formed between adjacent segments. The internal cross-section of the output side of the stepped inlet is larger than that of the die hole. This design features multiple steps inside the inlet. As the material is extruded through these steps, the resistance gradually increases, pushing the material towards the center and ensuring more complete material intake and a denser structure. This prevents the produced profile from developing tail shrinkage or black core issues.

The utility model relates to the technical field of capacitor external resistance, solved the technical problem of too many conductors when capacitor external resistance, especially to a kind of explosion-proof plate with resistance positioning, including as the support base's explosion-proof plate top cover, the explosion-proof plate top cover outside one end is fixedly connected with two symmetrical resistance lead fixed card seat, two the resistance lead fixed card seat one side is at the explosion-proof plate top cover outside surface and is provided with resistance card slot. The utility model is through the setting of resistance lead fixed card seat and resistance card slot, avoid the technical problem that capacitor external resistance needs to consume a large amount of wire, reduce the use of wire, reduce production cost. Meanwhile, through the design of external wire through joint, can be carried out to the external resistance wire and is limited to fixed, guarantees the stability of resistance connection, avoids the problem of unstable resistance connection to occur, improves the service life of capacitor.

In a transistor structure, a 2D channel material is formed after fabrication of a gate insulator and gate (electrode). In accordance with some exemplary “channel-material last” embodiments, a contact area between the 2D channel material and a source terminal and / or drain terminal is much larger than an edge or layer thickness of the 2D channel material, which may only be a few nanometers, for example. This larger contact area may significantly reduce external resistance of a transistor structure. Doping and strain engineering may also be more successfully applied to the “channel-material last” transistor structures disclosed herein, further boosting transistor performance.

The utility model provides a novel battery power management device relates to the technical field of battery power management. Relate to a kind of novel battery power management device, comprising: pressure sensing module: connecting liquid level pressure sensor, for real-time acquisition and processing the liquid pressure signal of the depth where solenoid valve is located;Microprocessor: receive the analog signal of pressure sensing module, after ADC conversion, the maximum drive current required by solenoid valve is calculated;Adjustable external resistance: controlled by microprocessor, receive the control signal of microprocessor to adjust resistance value;Solenoid valve driver: connecting adjustable external resistance output end, by changing the ground resistance value dynamic adjustment output current upper limit. The utility model solves the technical problem of how to save the energy consumption of solenoid valve, prolong the service life of power supply battery.