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IRPLCFL4
Functional Description
This solution adopts a completely different approach to the problem. Here we incorporate a voltage
doubler at the front end in all modes of operation giving a fixed 300VDC bus. Consequently by
choosing correctly the dead time and value of the snubber capacitor it is not difficult to achieve soft
switching in all modes of operation.
By simply changing the frequency between 3 defined settings, however, it was found to be extremely
difficult to set a point where the dim level is 50%. The problem with this is that the lamp current against
ballast frequency characteristic of the system exhibits a very sharp knee such that as the frequency
increases the lamp current is gradually reduced up to a point at which a small increase of frequency
will result in a very large reduction in the lamp current.
Ballast / Lamp Operating Characteristic
Lamp
Current
Ballast Running
Frequency
4
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相关代理商/技术参数
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功能描述:KIT DESIGN CFL BALLAST 220VAC RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035
IRPLCFL5U
功能描述:KIT DESIGN CFL BALLAST 120VAC RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035
IRPLCFL7U
制造商:International Rectifier 功能描述:9999V 999.000A OTHER - Boxed Product (Development Kits)
IRPLCFL8U
功能描述:电源管理IC开发工具 3 lvl Dim CFL Fluor Ballast w/IRS2530D RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V
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功能描述:电源管理IC开发工具 3 lvl Dim CFL Fluor Ballast Ref dsgn RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V
IRPLDIM1
制造商:IRF 制造商全称:International Rectifier 功能描述:Dimming Ballast Control IC Design Kit
IRPLDIM1E
功能描述:KIT BALLAST DIMMING 230VAC RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035
IRPLDIM1U
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