2results about How to "Improve charging stability" patented technology

This disclosure provides a charger circuit and charger, comprising: an input module adapted to rectify and filter a supply voltage to generate a transformer voltage; the transformer comprising: a primary coil, a secondary coil, and an auxiliary coil, wherein a first end of the primary coil is coupled to the input module, and a third end of the primary coil is coupled to an adjustment module; the secondary coil is coupled to an output module; the first end of the auxiliary coil is coupled to the adjustment module; the adjustment module is adapted to generate a drive signal with an initial duty cycle when receiving the transformer voltage to select a path between the third end of the primary coil and a first ground, and to detect the feedback current on the first end of the auxiliary coil when the path is selected by means of resistor voltage division, and to adjust the duty cycle of the drive signal according to the magnitude between the feedback current and a preset current to change the current at the first end of the auxiliary coil; and an output module. Using the above technical solution, a constant current value can be provided, improving the charging stability of electronic devices.

The utility model belongs to the field of conversion socket, concretely relates to a multi -national general -purpose conversion socket of wide adaptation high stability capacity -increasing structure, including converter shell, the inside slide coupling of converter shell has the plug, the top of converter shell places the expansion shell, the plug penetrates expansion shell and is connected with expansion shell slidingly, the expansion shell and converter shell between jointly are provided with quick -release mechanism, the inboard of expansion shell is equipped with the fixed plate through bolt mounting. The utility model adds an expansion shell on the converter shell, sets up the locking pin that expands and contracts through the spring in the expansion shell, locking pin has the slider on it, and the slider has the shift block on it, in this way, the European standard plug can be locked and prevented from loosening when being inserted into the German standard or French standard socket, ensuring the close connection of the plug and the socket, and significantly improving the charging stability.