参数资料
| 型号： | IRPLHALO1E |
| 厂商： | International Rectifier |
| 文件页数： | 6/17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
AC voltage to appear across the primary. The reduced output voltage will naturally result in a reduced
current in the lamp which eases the inrush current thus avoiding tripping of the shutdown circuit and
easing stress on the lamp filament as well as high current in the half bridge MOSFETs (M1 and M2).
The frequency sweeps down gradually from 125kHz to the minimum frequency over a period of
around 1s (for a CSD capacitor of 100nF). During this time the external capacitor at the CSD pin
charges from 0V to 5V controlling the oscillator frequency via the internal voltage controlled oscillator
(VCO). The value of CSD will determine the duration of the soft start sweep. However since it also
governs the shut down circuit delays the value should be kept at 100nF to achieve the correct
operation.
Fig. 2 Startup current without and with soft start function
Run Mode
When soft start is completed the system switches over to run mode. During this time the system
provides some regulation of the output voltage of the convertor from minimum to maximum load. In
this type of system it is desirable that the voltage supplied to the lamp does not exceed a particular
limit. If the lamp voltage becomes too high the temperature of the filament runs too high and the life
of the lamp is significantly reduced. The problem is that the output transformer is never perfectly
coupled so there will always be a degree of load regulation. The transformer has to be designed
such that the lamp voltage at maximum load is sufficiently high to ensure adequate light output.
At minimum load the voltage will consequently be higher and is likely to exceed the maximum
desired lamp voltage. The load current is sensed via the current sense resistor (RCS). The peak
current is detected and amplified within the IC then appears at the CSD pin during voltage compen-
sation mode. The voltage across the CSD capacitor will vary from 0V if there is no load to approxi-
mately 5V at maximum load.
6
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相关PDF资料 |
PDF描述 |
|---|---|
| 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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