減少全數位式控制相移全橋轉換器之待機功率的偵測方法

Sensing Methods for Reducing Standby Power for Fully Digital-Controlled Full-Bridge Converter with Phase-Shift Control

蘇子杰(Tzu-Chieh Su)

指導教授 ： 賴炎生

國立臺北科技大學/電資學院/電機工程系所/碩士(2010年)

https://doi.org/10.6841/NTUT.2010.00143

摘要

本文主要目的是探討減少全數位式控制相移全橋轉換器之待機功率的偵測方法，其偵測方法包含利用相移全橋轉換器的變壓器、輸出電感以及輸出端的ORing FET作為偵測的主要元件，並探討其偵測方法的可行性。
本文利用德州儀器公司所產的數位信號處理器TMS320F2812為控制平台；本文所研製的詳細規格包含輸入直流電壓為400 V、輸出電壓為12 V、輸出電流為30 A、最大功率為360W及切換頻率100 kHz。
由實驗結果顯示所提之偵測法中，ORing FET偵測法可使數位訊號處理器較易辨別相移全橋轉換器是否處於待機狀態。

關鍵字

相移全橋轉換器 ； 電流感測 ； 待機控制 ； ORing FET(場效應電晶體)

並列摘要

The main objective of this paper is to investigate the prons and cons of sensing methods for fully digital-controlled phase-shift full-bridge converter to reduce standby power. The current sensing methods for standby power reduction are developed using transformer, output inductor and output ORing FET.
In this paper, a Texas Instruments digital signal processor (DSP) TMS320F2812 is used to control the power converter. The details of specifications are as follows: input DC voltage 400 V, output voltage 12 V, maximum output current 30 A, maximum power 360W and switching frequency 100 kHz.
The Experimental results show that using ORing FET for current sensing method can clearly identify whether the phase-shift full-bridge converter is under standby mode.

並列關鍵字

Phase Shift Full Bridge Converter ； Current sensing ； Standby control ； Output ORing FET

參考文獻

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