【正文】 ，將高頻信號旁路到地。同樣電容CC4為濾波電容。 電源電路 系統(tǒng)軟件設(shè)計(jì)系統(tǒng)的軟件設(shè)計(jì)主要包括程序初始化、時(shí)間設(shè)定子程序、1302的讀寫程序、24C02的讀寫程序、時(shí)間比較子程序、按鍵子程序、顯示刷新子程序等共同組成。程序開始要進(jìn)行初始化，調(diào)用24c02內(nèi)部存儲的開關(guān)路燈時(shí)間點(diǎn)，程序每各一段時(shí)間調(diào)一次1302中的時(shí)間。通過程序?qū)⒃O(shè)定的時(shí)間同系統(tǒng)當(dāng)前時(shí)間進(jìn)行比較，設(shè)定的比較間隔為1秒一次，當(dāng)時(shí)間相同時(shí)，則通過程序輸出控制信號，對驅(qū)動電路進(jìn)行驅(qū)動。如果想調(diào)整開關(guān)路燈時(shí)間點(diǎn)和1302中的當(dāng)前時(shí)間可以通過設(shè)置的按鍵手動進(jìn)行時(shí)間的調(diào)節(jié)圖中開關(guān)SSS3分別為顯示1302時(shí)間鍵，功能鍵和加一鍵。 24c02開關(guān)燈時(shí)間 調(diào)1302讀時(shí)間 掃描按鍵 開 始 初始化54暗亮是否是否否是是是保護(hù)現(xiàn)場選定時(shí)器初值光線亮暗是否已開路燈是否到關(guān)燈時(shí)間是否到開路燈時(shí)間關(guān) 燈返 回是否是第一次檢測到光線暗開 燈中斷T0 系統(tǒng)總體程序流程圖中斷 T1保護(hù)現(xiàn)場選定時(shí)器初值是否到30MS功能鍵標(biāo)志位=？=?=0=1=2=3=4=5=6顯示1302時(shí)間時(shí)閃爍顯示1302時(shí)間分閃爍顯示關(guān)路燈時(shí)間點(diǎn)分閃爍顯示開路等點(diǎn)時(shí)閃爍存關(guān)路燈時(shí)間顯示1302時(shí)間存開路燈時(shí)間是返回=7顯示開路燈時(shí)間點(diǎn)分閃爍顯示1302時(shí)間顯示關(guān)路燈時(shí)間點(diǎn)時(shí)閃爍存1302時(shí)間功能鍵程序流程圖參考文獻(xiàn)[1] 張興，杜少武. 電力電子技術(shù)（第一版）[M]. 北京：科學(xué)出版社，2010.[2] 康華光，鄒壽彬. 電子技術(shù)基礎(chǔ)（第五版）[M]. 北京：高等教育出版社， 2008.[3] 黃漢云. 太陽能光伏發(fā)電應(yīng)用原理[M]. 北京：電子工業(yè)出版社，2009.[4] 曹振華，（第一版）[M].北京：國防工業(yè)出版社，2007[5] 歐陽名三，梁喆，姜媛媛，（第一版）[M].合肥：合肥工業(yè)大 學(xué)出版社，2009.[6] 沈輝，曾祖勤. 太陽能光伏發(fā)電技術(shù)[M]. 北京：化學(xué)工業(yè)出版社，2005.[7] 楊金煥，葛亮. 太陽能光伏發(fā)電應(yīng)用技術(shù)[M]. 北京：電子工業(yè)出版社，2009.[8] 魏偉，許勝輝. 光伏并網(wǎng)逆變器的研究[J] . 電力電子技術(shù) 2008：42（11）.[9] 杜飛，[M].北京：中國電力出版社：2009.[10] 王鳳巖，趙偉剛，[J].電工電能新技術(shù) 2007：26（4）[11] 艾永樂。北京：中國電力出版社，2008[12]蘇奎峰，呂強(qiáng)，[M].北京：北京航空航天大學(xué)出版社，2008.[13][D].成都：電子科技大學(xué)，2009.[14]楊金煥，于化從，.[M].北京：電子工業(yè)出版社，2009.[15]李廣海，葉勇，[J].自動化與儀器儀表，2003，（12）：4335[16] 趙爭鳴 ，劉建政． 太陽能光伏發(fā)電及其應(yīng)用．科學(xué)出版社2006[17][J].電力學(xué)報(bào)，2008，23（1）：2933.[18][J].陽光能源，2007，1：2831.[19]孫煥銘，趙會成，王金 .51單片機(jī)C程序應(yīng)用實(shí)例詳解，北京航空航天大學(xué)出版社2011年3 月[20] 陸興峰，曹志峰，許洪華等．光伏發(fā)電的最大功率跟蹤算法研究[J]．可再生能源. 2005 (1)：811[21] IES TM2111 Projecting Long Term Lumen Maintenance of LED Light Sources， 2003. 附錄Ⅰ翻譯：Overview of LED lighting technologyLED Summary LED (Light Emitting Diode), lightemitting diode, is a solid state semiconductor devices, which can be directly converted into electricity to light. LED is the heart of a semiconductor chip, the chip is attached to one end of a stent, is the negative side, the other end of the power of the cathode, the entire chip package to be epoxy resin. Semiconductor chip is posed of two parts, part of the Ptype semiconductor, it inside the holedominated, the other side is the Ntype semiconductor, here is mainly electronic. But linking the two semiconductors, among them the formation of a PN junction. When the current through the wires role in this chip, will be pushing eP, P zone in the hole with electronic posite, and then to be issued in the form of photon energy, and this is the principle of LED luminescence. The wavelength of light that is the color of light, is formed by the PN junction of the decisions of the material. With the appearance of the White LightEmitting Diodes, the LED also developed to be used for lighting. It is a new type of light source in the 21st century with advantages of high efficiency, longlife span and invulnerability which can not be pared with the traditional light sources. When being pressured with positive voltage, the LED can emit singlecolor, discontinuous light, which belongs to a kind of Organic Electroluminescent Effect. Varying the chemic ponent of the semiconductor material being used, we can make the LED emit a certain light which is very closed to ultraviolet radiation, visible light and infrared ray. LED history 50 years ago, people have to understand semiconductor materials can produce light of the basic knowledge, the first mercial diodes in 1960. English is the LED light emitting diode (LED) acronym, and its basic structure is an electroluminescent semiconductor materials, placed in a wire rack, then sealed with epoxy resin around, that is, solid package, Therefore, the protection of the internal batteries can play the role of line, so the seismic performance LED good. LED is the core of the Ptype semiconductor and ponents of the Ntype semiconductor chips, the Ptype semiconductor and Ntype semiconductor between a transition layer, called the PN junction. In some semiconductor materials in the PN junction, the injection of a small number of carriercarrier and the majority of the extra time will be in the form of light energy to release, thus the power to direct conversion of solar energy. PN junction on reverse voltage, a few hardcarrier injection, it is not luminous. This use of injection electroluminescent diodes is produced by the principle of lightemitting diodes, monly known as LED. When it in a positive state of the work (that is, at both ends with forward voltage), the current flows from the LED anode, cathode, semiconductor crystals on the issue from the ultraviolet to infrared light of different colors, light and the strength of the currents.Instruments used for the first LED light source instructions, but all kinds of light colored LED lights in traffic and large screen has been widely applied, have a very good economic and social benefits. The 12inch red traffic lights as an example, is used in the United States have long life, lowefficiency 140 watt incandescent lamp as a light source, it produced 2,000 lumens of white light. The red filter, the loss90 percent, only 200 lumens of red light In the light of the new design, Lumileds panies have 18 red LED light source, including the loss of circuit, a total power consumption of 14 watts to generate the same optical effect. Automotive LED lights is also the source of important areas. For general lighting, people need more white light sources. The 1998 white LED successful development. This is the GaN LED chip and Yttrium Aluminum Garnet (YAG) package together cause. GaN chip of the Bluray (λ p = 465nm, Wd = 30nm), made of hightemperature sintering of the Ce3 + YAG phosphors excited by this Bluray after irradiating a yellow, the peak 550 nm. Bluechip installed in the LEDbased Wanxing reflection in the cavity, covered with a resin mixed with YAG thin layer, about 200500 nm. LEDbased tablets issued