外文翻譯---光伏系統(tǒng)中蓄電池的充電保護(hù)ic電路設(shè)計(jì)-預(yù)覽頁(yè)
【正文】 e undervoltage signal。 at 45 176。 C means that the battery float voltage. Ordinary charger for the best working condition at 25 176。電子與信息工程學(xué)院 本科畢業(yè)論文(設(shè)計(jì))外 文 文 獻(xiàn) 翻 譯譯文題目： Design of a LeadAcid Battery Charging and Protecting IC in Photovoltaic System 學(xué)生姓名： 黃祖勛 專 業(yè)： 電氣工程及其自動(dòng)化 指導(dǎo)教師： 鄧方雄 2012年12月 湖北科技學(xué)院本科畢業(yè)論文（設(shè)計(jì)）：外文翻譯Design of a LeadAcid Battery Charging and Protecting IC in Photovoltaic SystemZENG Deyou,LING Chaodong,LI Guogang(Yuanshun IC Design Ramp。C, single cell battery voltage drops 4 mV, negative temperature coefficient of 4 mV / 176。C。s operating point, the M0, M1, M2 form a current mirror。 undervoltage occurs, the voltage divider of R1, R2, R3, reaction is more sensitive, lost to the inverting input voltage is less than V when the resistor divider, the parator the output voltage is high, this signal will be M14 open, the voltage across R into M at both ends of the saturation voltage close to 0V, thereby further driving down the R1 R2, the partial pressure of the output voltage, the formation of the undervoltage positive feedback. Output, undervoltage lockout, and plays a protective role.5. Simulation results and analysisThe design of the circuit in CSMC μm in digital CMOS process simulation and analysis of the circuit. In the overall simulation of the circuit, the main observation is that the protection module on the battery charge and discharge process by monitoring Vdd potential and Vm potential leaving chip CO side and DOside changes accordingly. The simulation waveform diagram shown in Figure 7, the overall protection module with the battery voltage changes from the usual mode conversion into overcharge mode, and then return to normal working mode, and then into the discharge mode, and finally back to normal working mode. As the design in the early stages of the various parameters to be optimized, but to provide a preliminary simulation results.Figure7 Overvoltage and undervoltage protection circuit simulation waveform Designed a set of battery charging and protection functions in one IC. This design not only can reduce the product, they can reduce the peripheral circuit ponents. The circuit uses the lowpower design. This project is underway to design optimization stage, a plete simulation can not meet the requirements, but also need to optimize the design of each module circuit. 光伏系統(tǒng)中蓄電池的充電保護(hù)IC電路設(shè)計(jì)曾德友，凌朝東，李國(guó)剛（華僑大學(xué) 元順集成電路研發(fā)中心，福建 泉州 362021）來(lái)源：微電子器件與技術(shù) 2007年第6期 太陽(yáng)能作為一種取之不盡、用之不竭的能源越來(lái)越受到重視。采用適當(dāng)?shù)母〕潆妷海谡Ｊ褂?防止過(guò)放、過(guò)充、過(guò)流)時(shí)，免維護(hù)鉛酸蓄電池的浮充壽命可達(dá)12~16年，如果浮充電壓偏差5%則使用壽命縮短1/2。目前，市場(chǎng)上還沒(méi)有真正的將充電與保護(hù)功能集成于單一芯片。圖1是此Ic在光伏發(fā)電系統(tǒng)中的具體應(yīng)用，也是此設(shè)計(jì)的來(lái)源。普通充電器在25℃處為最佳工作狀態(tài)；在環(huán)境溫度為0℃時(shí)充電不足；在45℃時(shí)可能因嚴(yán)重過(guò)充電縮短電池的使用壽命。當(dāng)電池處于過(guò)充電狀態(tài)的時(shí)間較長(zhǎng)，則會(huì)嚴(yán)重降低電池的容量，縮短電池的壽命。該電路包括限流比較器、電流取樣比較器、基準(zhǔn)電壓源、欠壓檢測(cè)電路、電壓取樣電路和邏輯控制電路。電器進(jìn)入涓流充電狀態(tài)，當(dāng)驅(qū)動(dòng)器截止時(shí)，該比較器還能輸出20 mA左右，進(jìn)入涓流充電電流。同時(shí)充電器連續(xù)監(jiān)控電池組的兩端電壓，當(dāng)電池電壓達(dá)到轉(zhuǎn)換電壓過(guò)充轉(zhuǎn)換電壓Vsam時(shí)，電池的電量己恢復(fù)到放出容量的70%~90%，充電器轉(zhuǎn)入過(guò)充電狀態(tài)。該電路包括控制邏輯電路、取樣電路、過(guò)充電檢測(cè)電路、過(guò)放電檢測(cè)比較器、過(guò)電流檢測(cè)比較器、負(fù)載短路檢測(cè)電路、電平轉(zhuǎn)換電路和基準(zhǔn)電路(BGR)。一般規(guī)律是過(guò)放電電流越大，則過(guò)放電電流延時(shí)時(shí)間越短。文中主要介紹欠壓檢測(cè)電路設(shè)計(jì)(圖5) ，并給出帶隙基準(zhǔn)電路(圖6) 。本電路的電源電壓是10V；M0，M1，M2，R0是電路的偏置部分，給后級(jí)電路提供偏置，電阻Ro決定了電路的工作點(diǎn)，M0，M1，M2組成電流鏡；R1，M14是欠壓信號(hào)的反饋回路；其余M3，M4，M5，M6，M7，M8，M9，M10，M11，M12，M13，M14組成四級(jí)放大比較器；M15，DO產(chǎn)生基準(zhǔn)電壓，輸入比較器的同相端，固定不變（V＋），分壓電阻R1，R2，R3輸入到比較器的反相端，當(dāng)電源電壓正常工作時(shí)，反相端的欠壓檢測(cè)輸給比較器的反相端的電壓大于V+。本設(shè)計(jì)電路采用CSMC μm數(shù)字CMOS工藝對(duì)電路進(jìn)行仿真分析。圖7 過(guò)壓與欠壓保護(hù)電路仿真波形 設(shè)計(jì)了一種集蓄電池充電與保護(hù)功能于一身的IC。13
環(huán)評(píng)公示相關(guān)推薦
鄂ICP備17016276號(hào)-1