以儲能電池結合微控制器達到可調光LED之電路設計與製作

A design and implement of microcontrollers combined with storage batteries to adjust LED light

王偉至(Wei-Chih Wang)

指導教授 ： 王欽戊

國立中正大學/工學院/機電光工程研究所/碩士(2015年)

摘要

本研究之主要目的為完成『以儲能電池結合微控制器達到可調光LED』的研製，此系統是包含 Boston 電池、升壓轉換器、脈衝寬度調變電路與 LED 燈；其主要目的是讓儲能電池在進行放電時，讓使用者自行調整需要的 LED 燈的照度。本系統採用升壓型直流對直流轉換器並使用 ATMega328 微控制器所產生之 PWM 訊號並由光耦合 TLP250 IC 來增強脈衝電壓，再搭配誤差放大器 INA145 IC 來達到系統對 LED 燈之放電控制。最後，本研究藉由修改微控制器之程式碼可調整 PWM 訊號週期來對 LED 燈進行調光控制。

關鍵字

放電 ； 儲能電池 ； 脈衝寬度調變 ； 電池管理系統

並列摘要

The main purpose of this study is to develop a “combination of storage batteries and microcontrollers to achieve dimmable LED.” This system includes a Boston-Power battery, boost converter, pulse width modulation (PWM) signal generation circuit, and LED light. The proposed system will allow users to adjust the luminance of LED light when the storage battery is discharging. The system uses the boost converter and the PWM signal generated by an ATMega328 microcontroller; the pulse voltage of the PWM signal is then increased through a TLP250 photocoupler. Next, with a differential amplifier INA145, the control of the LED light is achieved. Finally, this study demonstrates variation of the PWM signal cycle to control the luminance of the LED light by modifying the program code of the microcontroller.

並列關鍵字

discharging ； Energy storage battery ； Pulse Width Modulation ； Battery Management System (BMS)

參考文獻

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