Design and Implementation of Intelligent Charger Based on PWM Soft Switching Technology
Aiming at the defects such as large volume,inconvenient transportation and poor reliability of the traditional charger composed of frequency transformer and rectifier circuit,it adopts the switching power supply technology without frequency transformer,adopts the constant current-constant voltage(CC-CV)charging method according to the characteristics of the battery charging characteristic curve,carries out the system scheme and the main circuit design and uses the rectifier—Buck step-down chopping mode and PWM soft switching technology to control the charger circuit.Experiments show that this method can significantly extend the service life of the battery compared with the industrial frequency type charger.
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