顏昊昀彩燈循環(huán)電路設(shè)計(jì)

1、目錄摘要.......................................................................Ⅰ1理論知識(shí)準(zhǔn)備..............................................................12方案論證..................................................................22.

2、1備選方案............................................................22.2方案選擇............................................................53電路設(shè)計(jì)..................................................................73.1選擇器件.......

3、.....................................................73.1.1555定時(shí)器......................................................73.1.274LS194移位寄存器..............................................93.2功能模塊.............................

4、..............................103.2.1時(shí)鐘脈沖產(chǎn)生電路..............................................103.2.2彩燈維持電路..................................................123.2.3顯示電路......................................................1

5、44電路調(diào)試.................................................................154.1總體電路仿真.......................................................154.2電路布線...........................................................164.3電路調(diào)試結(jié)果....

6、...................................................17心得體會(huì)...................................................................18參考文獻(xiàn)...................................................................19武漢理工大學(xué)課程設(shè)計(jì)說明書22方案論證2.

7、1備選方案方案一：圖21方案一電路圖由HFC3040模塊構(gòu)成的六路循環(huán)彩燈控制電路可驅(qū)動(dòng)六路彩燈循環(huán)閃亮，并有2種不同的循環(huán)速度，如圖所示。由于電路中巧妙地利用了閃光集成模塊HFC3040，不但使電路結(jié)構(gòu)十分簡單，而且成本低廉。ICl是閃光專用集成電路HFC3040，其工作電壓范圍為1.5～5V。因此，220V交流電經(jīng)Rl降壓限流、V1半波整流后，使LED發(fā)光。同時(shí)，LED兩端約1.6V穩(wěn)定直流電壓經(jīng)C1濾波后供集成電路IC1用電。由于