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LED电子镇流器

Power Integrations推出了一系列针对LED照明应用的高度集成的高压IC,使设计师以宽电压输入(85 VAC至265 VAC)设计离线式电源。

LED灯与其它照明方式相比具有超凡的优势:

  • 能耗低
  • 使用寿命长
  • 维护少
  • 抗振防震
  • 能够生成纯净的彩色光
  • 体积小

随着能源成本的攀升、更为严格的全球能源法规出台和实施以及高亮度LED发光效能(流明/瓦)的提高,LED照明日益成为白炽灯和荧光灯的理想替代产品。

典型应用
应用指南
设计参考
设计范例报告
工程原型报告
参考设计包
4.2 W(12 V, 350 mA)通用输入CV/CC LED驱动器 - 抽头电感非隔离降压结构 Design Ideas are concise two-page documents describing a design for a specific application. Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
4.2 W(12 V, 350 mA)通用输入CV/CC LED驱动器 - 反激式结构 Design Ideas are concise two-page documents describing a design for a specific application. Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
5.32 W(7.6 V, 700 mA)通用输入CV/CC LED驱动器 Design Ideas are concise two-page documents describing a design for a specific application. Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
集成于灯炮内部的紧凑型LED驱动器(14 W, 700 mA)    Design Ideas are concise two-page documents describing a design for a specific application. Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    

高能效(>90%)、高压恒流LED驱动器

Design Ideas are concise two-page documents describing a design for a specific application.      
使用填谷式电流修整电路的低成本可调光LED镇流器(9 W, 7 V) Design Ideas are concise two-page documents describing a design for a specific application.      
用于LED镇流器的20 W带PFC电路的单级反激式电源 Design Ideas are concise two-page documents describing a design for a specific application.      
单级PFC恒流LED驱动器(75 W, PF >0.9) Design Ideas are concise two-page documents describing a design for a specific application. Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
可替换卤素灯应用的LED驱动器(3 W - 12 V, 300 mA) Design Ideas are concise two-page documents describing a design for a specific application.   Engineering Prototype Reports contain a power supply reference design specification, schematic, bill of materials, transformer documentation, and pcb layout. Performance data and typical operating characteristics are included. The design has been put into production for use in our Reference Design Kits. DAK-131
无源PFC LED照明供电 Design Ideas are concise two-page documents describing a design for a specific application.      
0.5 W通用型降压-升压式LED驱动器 Design Ideas are concise two-page documents describing a design for a specific application.      
1.25 W非隔离LED驱动器 Design Ideas are concise two-page documents describing a design for a specific application. Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
通用输入、24 WLED镇流器   Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
Universal 12 V 1.67 A PF>0.9   Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
Universal 12 V 1.67 A PF>0.9 Phase Dimming   Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    

适合上述应用的产品系列

PI的IC产品系列拥有较大的功率范围,用户在选择符合电源要求的IC方面具有极大的灵活性。此外,用户可对特定设计进行重新配置以获得更高或更低的功率,而无需对设计做较大改动。

IC 产品系列
典型的电路结构
额定功率/额定电流*
描述
LinkSwitch®-II
反激式
最高达5.5 W
LinkSwitch®-II通过省去光耦器和次级控制电路,可以大大简化低功率CV/CC充电器的设计。
LinkSwitch®-TN 降压式 最高 360 mA
电容降压方式的高效率替换方案,所需外围元件极少。
TinySwitch®-III 反激式
最高达28.5 W
导通时间延长特性及严格的I2f参数降低了输入电容的大小;同时降低了输入电容、变压器及过压保护电路的成本。
TOPSwitch®-GX 反激式 最高 290 W
扩大了功率范围,并具备UV检测、OV关断保护、外部可编程电流限流和远程开/关功能。

  * 通用输入,开放式

相关设计支持资料

设计资料 设计指南
产品数据手册 AN-44 LinkSwitch®-II 设计指南
AC-DC 产品选择指南 AN-15 使用TOPSwitch®设计电源在EMI和安全性的考量
封装信息 LinkSwitch®-TN降压-升压式设计指南(请参阅第11页的图6了解LED驱动器应用)
  采用TOP246F的14 W PFC隔离LED驱动器电路

相关链接

参考:

期刊杂志:

市场调查机构:

论坛:

各国政府能源法规计划:

Power Integrations支持:

如需帮助,请联系PI当地的销售代表处或代理商

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