3results about How to "Reduce the current value" patented technology

A circuit supporting multiple groups of fast charging protocols and having a data communication function is characterized by comprising an interface circuit unit, a voltage induction and identification circuit unit, a charging / communication switching circuit unit, a charging state management circuit unit and a data communication control circuit unit, the input end of the interface circuit unit is electrically connected with a plug of a USB-TYPE-C cable, the output end of the interface circuit unit is connected with the input end of the voltage induction and identification circuit unit, the interface circuit unit is connected with the input end of the charging / communication switching circuit unit, the charging / communication switching circuit unit is connected with the data communication control circuit unit, and the data communication control circuit unit is connected with the USB-TYPE-C cable. The output end of the data communication control circuit unit is electrically connected with a serial port of the single-chip microcomputer, the input end of the charging state management circuit unit is connected with the output end of the voltage induction and identification circuit unit, and the output end of the charging state management circuit unit is connected with the battery. And adaptive selection of a quick charging function and a data communication function is realized.

The application provides a flexible fusion arc-extinguishing device with phase power series voltage division. The topological structure is a structure in which a phase power and a single-phase converter are connected in series through an isolation transformer, wherein the phase power is obtained through switching and voltage boosting of a secondary winding of a grounding transformer and voltage boosting of a voltage transformer, the single-phase converter is connected in series with the phase power through the isolation transformer, and a DC side power supply of the single-phase converter is provided through rectification of the secondary winding of the grounding transformer by a rectifier. The control algorithm of the flexible fusion arc-extinguishing device is that the phase power is controlled as a voltage source, and the single-phase converter is controlled as a current source. The technical scheme makes up for the deficiency of the voltage arc-extinguishing method that the fault current compensation effect is not obvious in low-resistance grounding fault, and has good engineering application value.

This invention discloses a tumor electric field therapy device and system. The tumor electric field therapy device consists of a frame and electrode modules. The frame forms the skeleton structure of the therapy device, and the electrode modules are attached to the frame. Each electrode module has several electrode contacts, and each electrode contact can be either an active or passive contact. The active contacts can form a circuit with a radio frequency generation module. When the therapy device is implanted into the tumor resection site, all electrode contacts become active contacts, and each electrode contact forms a circuit with the radio frequency generation module, distinguishing between normal tissue and diseased tissue. After distinguishing between normal tissue and diseased tissue, the electrode contacts in the normal tissue area become passive contacts, and the electrode contacts in the diseased tissue area become active contacts, enabling targeted treatment of the diseased tissue and thus reducing the side effects of electric field therapy.