簡易調(diào)光燈數(shù)電課程設(shè)計報告(完整版)
【正文】 。當(dāng)人手觸摸電極M時，人體感應(yīng)的交流雜波信號經(jīng)CR6送至IC的4腳，經(jīng)TT6061集成電路內(nèi)部電路處理后，8腳輸出觸發(fā)信號經(jīng)C4加至晶閘管VS的門極，使VS導(dǎo)通，電燈EL點(diǎn)亮；第二次觸摸M時，可改變8腳輸出脈沖前沿到達(dá)時間，因而可使電燈亮度發(fā)生改變。白熾燈和金鹵燈在調(diào)光領(lǐng)域應(yīng)用得比較廣泛，但隨著節(jié)能減排的不斷推廣，LED可調(diào)光在攻克了調(diào)光技術(shù)障礙后，開始呈現(xiàn)發(fā)展趨勢。關(guān)鍵詞：調(diào)光；LED；計數(shù)ABSTRACTUsing 4017 decimal counting chip, 9013 triode, and create a simple callback ponents such as resistors, light emitting diode light products, realize to adjust the brightness of the light emitting diode. After testing, the system achieved the gear has three adjustable brightness. Can be targeted to meet customer demand, which can be adjusted to the brightness of the lamp, so as to realize save electricity, low carbon life. Incandescent lamp and metal halide lamp is more widely applied in the field of that move light, but with the further promotion of energy conservation and emissions reduction, adjustable LED light after conquering the dimming technical barriers, started to present development trend.Key Words: light。反復(fù)觸摸電極片M，燈泡E亮度按“微亮～較亮～最亮～熄滅～微亮……”順序循環(huán)變化。同時進(jìn)位端C0就輸出1個進(jìn)位脈沖，作為下一級計數(shù)器的時鐘信號。由于R3的阻值較大，注入VT的基流較小，所以驅(qū)動燈H的集電極電流也較小，故H發(fā)弱光。此高電平經(jīng)VD1和R3向三極管VT提供基極電流，經(jīng)VT放大后使燈H點(diǎn)亮發(fā)光。計數(shù)器的輸出Q0～Q4=1時進(jìn)位Co=1，Q5～Q9=1時Co=0。在調(diào)試過程中，先測試各單元電路，保證各部分電路能夠正常工作，檢查問題時采取逐步縮小故障的范圍，最后定位，再對相應(yīng)的位置做檢查，解決問題。比如一些芯片的功時看課本，這次看了，下次就忘了，主要是因?yàn)闆]有動手實(shí)踐過
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