鋰電池組全電壓檢查方法研究
作者:梁奇 上傳時間:2015/6/17 17:40:43
摘要:針對鋰電池組應(yīng)用中的安全性問題,探究鋰電池組整體電壓測量方法。該方法采用高共模電壓差分放大器INA117AM與超低噪聲精密儀器放大器OPA27AJ相結(jié)合,對鋰電池組的全電壓進行實時檢測保護。實驗結(jié)果表明,該方法能夠精確測量微弱差分電壓,測量誤差小,精度高,實現(xiàn)對鋰電池組電壓實時檢測。該方法操作簡單、直觀,使用方便,具有結(jié)構(gòu)簡單,測量精度高,且能消除紋波、噪聲和靜電電流影響等優(yōu)點,能夠有效保證鋰電池組應(yīng)用中的可靠性,能夠?qū)︿囯姵亟M的安全使用提供技術(shù)和方法參考。
敘詞:鋰電池組 電壓檢測 差分放大器
Abstract:Aiming at the security problems in application of lithium-ion battery pack, explore the full voltage measurement of lithium battery.The method using the combination of high common-mode voltage difference amplifier INA117AM and ultra low noise precision instrument amplifierOPA27AJ, implementation for real-time detection of lithium battery voltage. The experimental results show that this method can accurately measure the weak difference voltage, measurement error is small, high precision, realize real-time detection for lithium battery pack full voltage protection.The method is simple, intuitive and easy to use, it has a simple structure, high measurement precision and can eliminate the ripple, noise and static current influence etc. , and can effectively guarantee the lithium-ion batteries used in reliability, can use the safety of the lithium battery provides technology and methods for reference.
Keyword:Lithium battery pack, Voltage detection, Difference amplifier
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