Powerint LNK458KG 4.3W PFC LED驱动参考设计
关键词：
led驱动 , lnk458kg , pfc , powerint
powerint公司的4.3w pfc led驱动器采用linkswitchtm-pl系列lnk458kg,主要用于b10替代灯. 115 vac输入48v输出时的效率大于86%,115 vac输入96v输出时的效率大于87%,功率因素大于0.95,thd小于15%,起动时间小于300ms.本文介绍了led驱动参考设计主要优势以及输出48 v/90 ma, 48 v/ 60 ma和96 v/ 45 ma参考设计主要指标,电路图和相应的材料清单.
4.3 w power factor corrected led driver (non-isolated buck boost) using linkswitchtm-pl lnk458kg
this document is an engineering report describing a non-isolated led driver (power supply) utilizing a lnk458kg from the linkswitch-pl family of devices.
the der-297 provides a single constant current output with an output power of 4.5 w.
the board can be easily configured for output voltages from 35 v to 100 v as shown in the example table below.
the key design goals were high efficiency and small size, enabling the driver to fit into candelabra and b10 sized lamps and maximize efficacy.
the board was optimized to operate over the low ac input voltage range (85 vac to 132 vac, 47 hz to 63 hz). linkswitch-pl based designs provide a high power factor (>0.95) meeting current international requirements.
the form factor of the board was chosen to meet the requirements for standard b10 led replacement lamps. the output is non-isolated and requires the mechanical design of the enclosure to isolate the output of the supply and the led load from the user.
the design was not optimized for operation with phase controlled (triac) dimmers but this is possible with some modification will reduce efficiency.
the document contains the power supply specification, schematic, bill of materials, transformer documentation, printed circuit layout, design spreadsheet and performance data.
led驱动参考设计主要特性:
single-stage power factor corrected and accurate constant current (cc) output
low cost, low component count and small pcb footprint solution
highly energy efficient, >86 % at 115 vac input for 48 v and >87 % for 96 v output
superior performance and end user experience
fast start-up time (0.95 at 115 vac
%a thd <15% at 115 vac
meets iec ring wave, differential line surge and en55015 conducted e
2012-1-11 11:45:19 上传
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图1. led驱动参考设计外形图
48 v, 90 ma参考设计指标:
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48 v, 60 ma参考设计指标:
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96 v, 45 ma参考设计指标:
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图2.48 v, 90 ma参考设计电路图
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图3.48 v, 60 ma参考设计电路图
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图4.96 v, 45ma参考设计电路图
48 v, 90 ma参考设计材料清单:
2012-1-11 11:45:19 上传
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48 v, 60 ma参考设计材料清单:
make the following changes to modify the design from 48 v, 90 ma to 48 v, 60 ma.
2012-1-11 11:45:19 上传
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96 v, 45 ma参考设计材料清单:
make the following changes to modify design from 48 v, 90 ma to 96 v, 45 ma.
2012-1-11 11:45:19 上传
下载附件 (14.19 kb)
详情请见:
der297[1].pdf(4.1 mb, 下载次数: 1)2012-1-11 11:43:58 上传
下载次数: 1
下载积分: 积分 -1
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powerint公司的4.3w pfc led驱动器采用linkswitchtm-pl系列lnk458kg,主要用于b10替代灯. 115 vac输入48v输出时的效率大于86%,115 vac输入96v输出时的效率大于87%,功率因素大于0.95,thd小于15%,起动时间小于300ms.本文介绍了led驱动参考设计主要优势以及输出48 v/90 ma, 48 v/ 60 ma和96 v/ 45 ma参考设计主要指标,电路图和相应的材料清单.
4.3 w power factor corrected led driver (non-isolated buck boost) using linkswitchtm-pl lnk458kg
this document is an engineering report describing a non-isolated led driver (power supply) utilizing a lnk458kg from the linkswitch-pl family of devices.
the der-297 provides a single constant current output with an output power of 4.5 w.
the board can be easily configured for output voltages from 35 v to 100 v as shown in the example table below.
the key design goals were high efficiency and small size, enabling the driver to fit into candelabra and b10 sized lamps and maximize efficacy.
the board was optimized to operate over the low ac input voltage range (85 vac to 132 vac, 47 hz to 63 hz). linkswitch-pl based designs provide a high power factor (>0.95) meeting current international requirements.
the form factor of the board was chosen to meet the requirements for standard b10 led replacement lamps. the output is non-isolated and requires the mechanical design of the enclosure to isolate the output of the supply and the led load from the user.
the design was not optimized for operation with phase controlled (triac) dimmers but this is possible with some modification will reduce efficiency.
the document contains the power supply specification, schematic, bill of materials, transformer documentation, printed circuit layout, design spreadsheet and performance data.
led驱动参考设计主要特性:
single-stage power factor corrected and accurate constant current (cc) output
low cost, low component count and small pcb footprint solution
highly energy efficient, >86 % at 115 vac input for 48 v and >87 % for 96 v output
superior performance and end user experience
fast start-up time (0.95 at 115 vac
%a thd <15% at 115 vac
meets iec ring wave, differential line surge and en55015 conducted e
2012-1-11 11:45:19 上传
下载附件 (25.97 kb)
图1. led驱动参考设计外形图
48 v, 90 ma参考设计指标:
2012-1-11 11:45:19 上传
下载附件 (31.26 kb)
48 v, 60 ma参考设计指标:
2012-1-11 11:45:19 上传
下载附件 (32.54 kb)
96 v, 45 ma参考设计指标:
2012-1-11 11:45:19 上传
下载附件 (33.01 kb)
2012-1-11 11:45:19 上传
下载附件 (12.12 kb)
图2.48 v, 90 ma参考设计电路图
2012-1-11 11:45:19 上传
下载附件 (12.35 kb)
图3.48 v, 60 ma参考设计电路图
2012-1-11 11:45:19 上传
下载附件 (12.07 kb)
图4.96 v, 45ma参考设计电路图
48 v, 90 ma参考设计材料清单:
2012-1-11 11:45:19 上传
下载附件 (47.68 kb)
48 v, 60 ma参考设计材料清单:
make the following changes to modify the design from 48 v, 90 ma to 48 v, 60 ma.
2012-1-11 11:45:19 上传
下载附件 (11.68 kb)
96 v, 45 ma参考设计材料清单:
make the following changes to modify design from 48 v, 90 ma to 96 v, 45 ma.
2012-1-11 11:45:19 上传
下载附件 (14.19 kb)
详情请见:
der297[1].pdf(4.1 mb, 下载次数: 1)2012-1-11 11:43:58 上传
下载次数: 1
下载积分: 积分 -1
东大索尼共同研发出AI系统Derma 传感器贴合在喉咙把口形转为声音
华为针对智慧园区管理提出了5G+云+AI+生态
空间电压矢量svpwm控制原理解析
因怀疑低价倾销光缆，欧盟正式对从中国进口的光缆展开反倾销调查
技嘉发布新的H470主板，支持11代酷睿
Powerint LNK458KG 4.3W PFC LED驱动参考设计
5G安全漏洞频发，阻碍5G的高速发展
家用电路常见故障_家用电路维修
智能家居热度不减，摩根智能一马当先
电阻知识概述
log2在verilog中到底有什么用
科学家使用日常无人机检测和监测浅水区的海洋巨型动物
汽车研发生产企业江淮汽车发布2022第一季度报告
OpenHarmony：使用网络组件axios与Spring Boot进行前后端交互
如何用二极管来实现限幅电路和钳位电路
微电网能量管理系统 削峰填谷 配合储能设备、低充高放
磁敏气缸传感器优点和缺点
郑大附一院正在建设5G网络基站
乐视Pro3双摄AI版和一加3T哪个好？买手机如何去看性价比？
物联网和云计算是智慧园区项目运用较为广泛的两种技术