中文在线中文资源,色鲁97精品国产亚洲AV高,亚洲欧美日韩在线一区,国产精品福利午夜在线观看

你的位置:首頁 > 測試測量 > 正文

飛兆—用FL7732實現高功率因子的LED驅動電源

發布時間:2012-09-27 來源:電子元件技術網 責任編輯:echotang

 

導讀:這種高度集成PWM控制器,FL7732,有一些特征可以提高低功率反激轉換器的性能。專有拓撲設計簡化了LED照明應用的電路設計,采用了單級拓撲和主面監控。這樣少數的外部組件和最小化成本就可以實現照明板。不在需要輸入bulk電容和反饋電路。


Precise constant-current control regulates accurate output current across changes in input voltage and output voltage. The operating frequency is proportionally changed by the output voltage to guarantee DCM operation with higher efficiency and simple design. FL7732 provides protection functions such as open-LED, short-LED and overtemperature protection. The current-limit level is automatically reduced to minimize the output current and protect external components in short-LED condition.

This application note presents practical design consideration for an LED driver employing Fairchild Semiconductor PWM PSR controller FL7732. It includes designing the transformer, selecting the components, and implementing constant current regulation. The step-by-step design procedure helps engineers design a power supply. The design procedure is verified through an experimental prototype converter. Figure 1 shows the typical application circuit of primary-side controlled flyback converter using FL7732 created in the design example.

詳細設計指南請點擊下載

要采購轉換器么,點這里了解一下價格!
特別推薦
技術文章更多>>
技術白皮書下載更多>>
熱門搜索
?

關閉

?

關閉

  • <center id="09kry"></center>

  • 主站蜘蛛池模板: 蒙自县| 禹城市| 巴彦县| 财经| 杨浦区| 滁州市| 普陀区| 南宫市| 石河子市| 镇安县| 嘉定区| 泽库县| 同德县| 县级市| 游戏| 宝清县| 高青县| 郁南县| 阿坝县| 达州市| 鲁甸县| 靖西县| 东安县| 南城县| 扶余县| 洛浦县| 老河口市| 抚松县| 马公市| 鹤峰县| 望都县| 北碚区| 普洱| 瑞昌市| 富宁县| 曲水县| 阳原县| 大化| 乌拉特后旗| 北碚区| 兴国县|