摘要:本文基于DSP控制的UPS系統(tǒng)的性能要求,研究了兩種具有電氣隔離性能的蓄電池電壓檢測(cè)方法:一種方法是串行A/D檢測(cè)電壓、其轉(zhuǎn)換結(jié)果通過普通光耦由DSP的SPI口讀入;另一種方法是被測(cè)電壓先由線性光耦隔離、再由DSP內(nèi)部A/D轉(zhuǎn)換。給出了實(shí)驗(yàn)結(jié)果,并比較分析了它們的優(yōu)缺點(diǎn)。
敘詞:不間斷電源,控制,數(shù)字信號(hào)處器,測(cè)量
Abstract:Two isolated measuring methods for voltage of the battery are presented in this paper to satisfy the property of a DSP-controlled UPS, The voltage can be converted into a digital result by a serial ADC firstly and the DSP read the data through SPI with general opto-couples. Or the voltage can be transferred by a linear opto-couple and then converted by an inner ADC in the DSP. The methods are analyzed and valued with experimental results given.
Keyword:Uninterruptible Power Supply, Control, Digital Signal Processor, Measuring