LED照明驅(qū)動開關(guān)電源設(shè)計
5400字    14頁

摘要
LED照明驅(qū)動設(shè)計了恒流輸出、空載保護、隔離輸出及EMC等功能。系應(yīng)用于LED照明驅(qū)動的開關(guān)電源電路。采用PWM自動調(diào)節(jié)實現(xiàn)恒流輸出，穩(wěn)壓管過壓鎖定實現(xiàn)空載保護，電磁隔離和光隔離實現(xiàn)隔離輸出。經(jīng)過多次的運行與檢測，實踐證明該電路恒流輸出穩(wěn)定，發(fā)熱量低。本設(shè)計體積小,微調(diào)反饋電路可設(shè)置作為為LED驅(qū)動常用的350mA或700mA恒流輸出。可廣泛適用于生活照明，商用照明。

關(guān)鍵詞：LED驅(qū)動電源；發(fā)熱低；恒流；隔離；低成本
 
 Driving switch power LED lighting design
LED lighting design drive the constant-current output, the output and protection, isolation no-load EMC etc. Function. Is applied to the switch power LED lighting driving circuit. Using PWM automatic adjustment output voltage, the constant-current over-voltage protection tube, electromagnetic no-load realize locking and isolation realize isolation output isolation. After many operation and test, the practice has proved that the constant-current circuits, low heat stable output. This design, small size, fine-tuning feedback circuit can be set as the common 350mA LED drive or 700mA constant-current output. Life can be widely used in commercial lighting, lighting.
Key words：Leds driving power；Fever is low； Constant flow；Isolation； Low cost
 
目 錄
1概述 1
1.1選題的目的與意義 1
1.2研究現(xiàn)狀 1
1.3系統(tǒng)性能指標 1
1.4系統(tǒng)組成及設(shè)計思路 2
1.5總體功能描述 3
2硬件電路的設(shè)計 4
2.1電路設(shè)計 4
2.2磁路設(shè)計 8
參考文獻 10
致謝 10
附錄 10