A smart charger system and circuit

Abstract

The invention discloses an intelligent charger system. The intelligent charger system comprises a reference voltage adjusting module, a comparing module, an amplifying module and a feedback acquisition module. The intelligent charger system takes an Infineon 8-bit singlechip XC866 as a PWM (pulse-width modulation) control unit; software controls the XC866 to output PWM with a fixed frequency of 50 K; the duty ratio of the PWM is from 0 to 100% and is adjusted by the software; the PWM output by the XC866 is rectified by a filter circuit into variable 0-5 V direct current as reference voltage; the reference voltage controls output voltage and output current of a transformer of the charger by controlling the duty ratio of the 50 K PWM to control the method and the circuit of the output voltage and current. Hardware is not required to be modified, and the software modifies a charging curve of the charger, so that charging equipment enters a brand-new adaptive and intelligent stage.

Description

technical field [0001] The invention belongs to the field of electric vehicle chargers, in particular to an intelligent charger system and circuit. Background technique [0002] A charger usually refers to a device that converts alternating current into direct current. The charger is widely used in various fields, especially in the field of life, it is widely used in electric vehicles and other common electrical appliances. The charger uses power electronic semiconductor devices, which will A static converter device that converts alternating current with constant voltage and frequency into direct current. In the occasions where batteries are used as working power or backup power, the charger has a wide range of application prospects. The choice of charging method directly affects the performance of the battery. In terms of efficiency and service life, charging technology has developed very rapidly in recent years; the development of chargers has gone through three stages: 1....

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to use a kind of intelligent charger system and circuit, aiming at solving the problem of slow charging speed, long charging time, low charging effective capacity, short cycle, easy damage to the battery, and fast charging technology. The traditional battery chargers are mostly analog circuit chargers, which have the problems of complex circuit, high cost, difficult design, difficult maintenance, poor maintenance and expansion performance, low reliability, backward charging method, and often long charging time

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