太阳能光伏电池外文翻译(编辑修改稿)

太阳能光伏电池外文翻译(编辑修改稿)内容摘要：

manufacturers remend charging rate of C/20 ~ C/3. Battery voltage and temperature, the temperature is increased by 1 176。 C, single cell battery voltage drops 4 mV, negative temperature coefficient of 4 mV / 176。 C means that the battery float voltage. Ordinary charger for the best working condition at 25 176。 C。 charge less than the ambient temperature of 0 176。 C。 at 45 176。 C may shorten the battery life due to severe overcharge. To make the battery to extend the working life, have a certain understanding and analysis of the working status of the battery, in order to achieve the purpose of protection of the battery. Battery, there are four states: normal state, overcurrent state over the state of charge, over discharge state. However, due to the impact of the different discharge current overcapacity and lifetime of the battery is not the same, so the battery over discharge current detection should be treated separately. When the battery is charging the state a long time, would severely reduce the capacity of the battery and shorten battery life. When the battery is the time of discharge status exceeds the allotted time, the battery, the battery voltage is too low may not be able to recharge, making the battery life is lower. Based on the above, the charge on the life of maintenancefree leadacid batteries have a significant impact, while the battery is always in good working condition, battery protection circuit must be able to detect the normal working condition of the battery and make the action the battery can never normal working state back to normal operation, in order to achieve the protection of the battery. modular design charging module Chip, charging module block diagram shown in Figure 2. The circuitry includes current limiting, current sensing parator, reference voltage source, undervoltage 内蒙古工业大学毕业论文外文翻译 detection circuit, voltage sampling circuit and logic control circuit. The module contains a standalone limiting amplifier and voltage control circuit, it can control offchip drive, 20 ~30 mA, provided by the drive output current can directly drive an external series of adjustment tube, so as to adjust the charger output voltage and current . Voltage and current detection parator detects the battery charge status, and control the state of the input signal of the logic circuit. When the battery voltage or current is too low, the charge to start the parator control the charging. Appliances into the trickle charge state when the cutoff of the drive, the parator can output about 20 mA into the trickle charge current. Thus, when the battery shortcircuit or reverse, the charger can only charge a small current, to avoid damage to the battery charging current is too large. This module constitutes a charging circuit charging process is divided into two charging status: highcurrent constantcurrent charge state, highvoltage charge status and lowvoltage constant voltage floating state. The charging process from the constant current charging status, the constant charging current of the charger output in this state. And the charger continuously monitors the voltage across the battery pack, the battery power has been restored to 70% to 9。