太陽能光伏電池外文翻譯-資料下載頁
2025-05-12 04:18本頁面
【導(dǎo)讀】太陽能作為一種取之不盡、用之不竭的能源越來越受到重視。作為太陽能照明的一個關(guān)鍵部分，蓄電池的充電以及保護顯得尤為重要。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，充電方式對這。類電池的使用壽命有著重大的影響。由于在光伏發(fā)電中，蓄電池無需經(jīng)常維護，場上還沒有真正的將充電與保護功能集成于單一芯片。針對這個問題，設(shè)計一種。集蓄電池充電和保護功能于一身的IC是十分必要的。電和保護功能集于一身使得電路簡化，并且減少寶貴的而積資源浪費。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。要使得蓄電池延長工作壽命，對蓄電池的工作狀態(tài)要有一定的了。解和分析，從而實現(xiàn)對蓄電池進行保護的目的。當電池處于過放電狀態(tài)的時間超過規(guī)定時間，則電池由于電池電壓過。低可能無法再充電使用，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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