As solar lights have their own unique advantages, in recent years has been rapid development. Lawn lamp power is small, mainly for the purpose of decoration, high mobility requirements, in addition, the circuit laying difficult, high water requirements, the requirements made by the solar cell power supply lawn lamp shows a lot of unprecedented advantages. The following are the same as the "Especially in foreign markets on the solar lawn light than other products demand is very large. In 2002, only Guangdong and Shenzhen for the manufacture of export solar lawn lamp consumption of solar cells to reach 2MW, equivalent to the year of domestic solar cell production 1/3, this year still maintain a strong momentum of development, which is not expected. Solar garden lights in the park, living area and non-major traffic roads are widely used. At the same time, due to the development of too fast, some products are not technically mature enough, in the light source selection and circuit design there are many shortcomings, reducing the product economy and *, wasting a lot of resources. In this paper, the above problems, put forward their own views, for the production of solar lighting factory reference. The following are the same as the "1 external characteristics of solar cellsFrom the application point of view, we are mainly concerned about the external characteristics of solar cells. First of all, for monolithic solar cells, it is a PN junction, in addition to when the sun is lit above, it can produce electricity, it also has all the characteristics of PN junction. Under standard lighting conditions, its rated output voltage is 0.48V. Solar cell modules used in solar lighting are made up of multiple solar cells. It has a negative temperature coefficient, the temperature of each rise once, Miao melon land mV, for many solar cells composed of solar modules, this is a problem can not be ignored. Its output characteristic curve is shown in Fig. In Figure 1, Isc is the short-circuit current, Im is the peak current, Voc is the open circuit voltage. Vm is the peak voltage, and Pm is the peak power. The following are the same as the "In use, the solar cell open or short circuit will not cause damage, in fact, we also use it to this feature of the system battery charge and discharge control. The following are the same as the "2 solar cells in use must pay attention to the problem2.1 solar cell power selectionWe are talking about the solar cell output power Wp is the standard solar lighting conditions, namely
0 likes
China [CN] 
Click enlarge Image