智能型充電器設計
Design of Smart Charger
摘要:本設計以德州儀器公司的MSP430F149單片機來設計一種智能充電器。該智能充電器通過采樣電路把相關電池充電狀態的充電電流、電池電壓和溫度信號送入單片機的A/D轉換口進行轉換,然后單片機根據模糊控制充電算法來改變降壓斬波控制器BUCK電路的PWM脈沖輸入波的占空比,從而達到來實現對充電過程的智能控制,此外該系統還包括有相應的顯示電路、鍵盤電路以及報警電路,用來輸入一些充電參數且通過LCD顯示器和聲光報警來做出系統的相關提示。本智能充電器設計的模糊控制充電策略,進行智能控制,從而實現數字化、智能化、通用化和低功耗的特點。
Abstract: this design is to build a smart charger using Texas Instruments’ MSP430F149 microcontroller. The smart charger send charging current, battery voltage and temperature signal at certain charging state to the microcontroller’s A/D interface for conversion via sampling circuit. The microcontroller then change the duty cycle of the PWM pulse input wave of chopper controller’s buck circuit based on fuzzy control charging algorithm, realizing smart control of charging process. The system also includes display circuit, keyboard circuit and alarm circuit for the input of charging parameters, and prompts charging state via LCD display and sound/light alarm. This smart charger utilizes fuzzy algorithm for smart control, showing digitalization, intelligence, universalization, and low-power features.
關鍵字:MSP430F149單片機;智能充電器;A/D 轉換;模糊控制;PWM
Keywords: MSP430F149 microcontroller, smart charger, A/D conversion, fuzzy control, PWM |