参数资料
| 型号： | IRPLHALO1E |
| 厂商： | International Rectifier |
| 文件页数： | 12/17页 |
| 文件大小： | 0K |
| 描述： | KIT HALOGIN CONVERTER 100VA |
| 标准包装： | 1 |
| 主要目的： | 照明，镇流器控制 |
| 已用 IC / 零件： | IR2161 |
| 已供物品： | 板，文档 |
| 相关产品： | IR2161STRPBF-ND - IC HALOGEN CONVERTER CTLR 8-SOIC IR2161PBF-ND - IC HALOGEN CONVERTER CTLR 8-DIP IR2161SPBF-ND - IC HALOGEN CONV CTRL 8-SOIC |
| 其它名称： | *IRPLHALO1E |
IRPLHALO1E
The transformer selection procedure is as follows:
1.
2.
Select the correct core size for the maximum load at 30kHz. Use the manufacturer ’s core
data to determine the maximum throughput power at this frequency.
Calculate the number of turns required at the primary
Np (min) =
Vpk ? Ton (max)
2 ? B (max) ? Ae
Where Bmax (maximum flux density in Teslas) can be obtained from the core manufactur-
ers data for the Ferrite material operating at a temperature of 100 degrees C and Ae is the
cross sectional area of the magnetic path in mm 2 .
Vpk may be considered to be 400V and Ton(max) may be considered to be 18uS.
3.
Calculate the number of turns required at the secondary.
Ns =
2. Np . Vout ( rms )
Vac ( rms )
4.
12
Determine the leakage inductance.
This can only be done by measurement. Simply short out the secondary and measure the
primary inductance with an LCR bridge. The amount of leakage inductance depends on the
physical construction of the transformer, the better the primary and secondary windings are
coupled, the lower the leakage inductance will be. However, in this application some leak-
age inductance is desirable to limit the primary current if the secondary is short circuited. It
is also important to consider that a high isolation breakdown voltage (4kV) is required in this
application between the primary and secondary windings, for safety certification of the con-
vertor. This means that winding the primary and secondary close together is not possible
and therefore, some leakage inductance will result.
In some designs the output transformer is purposely designed to have a high leakage
inductance in order to limit the primary current under short circuit conditions and therefore
allow smaller half bridge MOSFETs to be used. In this case the short circuit primary current
may be too small to trigger the short circuit protection, the result being that the system will
take longer to shut down because only the overload threshold is exceeded at the CS pin.
This is unlikely to cause any problems but should be considered.
www.irf.com
相关PDF资料 |
PDF描述 |
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| IRPLHID2 | KIT DESIGN BALLAST IRS2573D |
| IRPLLNR2U | BALLAST 32W/T8 120V AC IR21571 |
| IRPLLNR4 | BALLAST UNIV INP FLUOR IR2166 |
| IRPLLNR5 | KIT BALLAST UNIV FLUOR 54W TL5 |
| IRPLLNR7 | KIT UNIV ELEC BALLAST FLUOR LAMP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IRPLHID1U | 制造商:International Rectifier 功能描述:600V .500A OTHER - Boxed Product (Development Kits) |
| IRPLHID2 | 功能描述:电源管理IC开发工具 HID Ballast for 70W Lamp Using IRS2573D 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 |
| IRPLLED1 | 功能描述:BOARD EVALUATION FOR IRS2540PBF RoHS:是 类别:编程器，开发系统 >> 评估板 - LED 驱动器 系列:- 标准包装:1 系列:PowerWise® 电流 - 输出 / 通道:20mA 输出及类型:1，非隔离 输出电压:17V 特点:可调光 输入电压:2.7 ~ 5.5 V 已供物品:板 已用 IC / 零件:LM3508 相关产品:LM3508TLX-ND - IC LED DRVR WHT BCKLGT 9USMDLM3508TLDKR-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLCT-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLTR-ND - IC LED DRVR WHT BCKLGT 9MICROSMD |
| IRPLLED1A | 功能描述:电源管理IC开发工具 Hi-Vlt DC-DC Buck Cnvr HBLED Cur Cntrl 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 |
| IRPLLED5 | 制造商:International Rectifier 功能描述: |
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