太陽(yáng)能光伏電池外文翻譯-資料下載頁(yè)
2025-05-12 04:18本頁(yè)面
【導(dǎo)讀】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。作為太陽(yáng)能照明的一個(gè)關(guān)鍵部分，蓄電池的充電以及保護(hù)顯得尤為重要。不間斷供電的電子設(shè)備和便攜式儀器儀表中有著廣泛的應(yīng)用。12~16年，如果浮充電壓偏差5%則使用壽命縮短1/2。由此可見(jiàn)，充電方式對(duì)這。類(lèi)電池的使用壽命有著重大的影響。由于在光伏發(fā)電中，蓄電池?zé)o需經(jīng)常維護(hù)，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。針對(duì)這個(gè)問(wèn)題，設(shè)計(jì)一種。集蓄電池充電和保護(hù)功能于一身的IC是十分必要的。電和保護(hù)功能集于一身使得電路簡(jiǎn)化，并且減少寶貴的而積資源浪費(fèi)。電池的電壓與溫度有關(guān)，溫度每升高1℃，單格電池電壓下降4mV，普通充電器在25℃處為最。要使得蓄電池延長(zhǎng)工作壽命，對(duì)蓄電池的工作狀態(tài)要有一定的了。解和分析，從而實(shí)現(xiàn)對(duì)蓄電池進(jìn)行保護(hù)的目的。當(dāng)電池處于過(guò)放電狀態(tài)的時(shí)間超過(guò)規(guī)定時(shí)間，則電池由于電池電壓過(guò)。低可能無(wú)法再充電使用，從而使得電池壽命降低。
【正文】 cularly important, undervoltage, 內(nèi)蒙古工業(yè)大學(xué)畢業(yè)論文外文翻譯 overvoltage protection is essential, therefore integrated overvoltage, undervoltage protection circuit inside the chip, to improve power supply reliability and security. And protection circuit design should be simple, practical, here designed a CMOS process, the undervoltage protection circuit, this simple circuit structure, process and easy to implement and can be used as highvoltage power integrated circuits and other power protection circuit. Undervoltage protection circuit schematic shown in Figure 5, a total of five ponents: the bias circuit, reference voltage, the voltage divider circuit, differential amplifier, the output circuit. The circuit supply voltage is 10V。 the M0, M1, M2, R0 is the offset portion of the circuit to provide bias to the poststage circuit, the resistance, Ro, determine the circuit39。s operating point, the M0, M1, M2 form a current mirror。 R1 M14 is the feedback loop of the undervoltage signal。 the rest of the M3, M4 and M5, M6, M7, M8, M9, M10, M11, M12, M13, M14, posed of four amplification parator。 M15, DO, a reference voltage, the parator input with the inverting input is fixed (V+), partial pressure of the resistance R1, R2, R3, the input to the inverting input of the parator, when the normal working of the power supply voltage, the inverting terminal of the voltage detection is lost to the inverting terminal voltage of the parator is greater than V+. Comparator output is low, M14 cutoff, feedback circuit does not work。 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 analysis The 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 內(nèi)蒙古工業(yè)大學(xué)畢業(yè)論文外文翻譯 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. 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.
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