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參數(shù)資料
| 型號： | IRPLLNR3 |
| 廠商： | International Rectifier |
| 英文描述： | Universal Input Linear Fluorescent Ballast using the IR2167 |
| 中文描述： | 通用輸入線性熒光燈鎮(zhèn)流器用IR2167 |
| 文件頁數(shù)： | 20/27頁 |
| 文件大小： | 341K |
| 代理商： | IRPLLNR3 |
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IRPLLNR3
CSD1
REOL
REOL4
CEOL
CRES
SD
2V
A
Inside the
IR2167
0V
2V
in A
in the SD pin
Fig. 17:
Improved End-of-life circuit
Improved End of Life solution
The same PCB can be used with a different end of life configuration. It is needed to put a capacitor
in the place of DEOL1 diode (100nF), to short DEOL2 (0 Ohm resistor) and to reduce the capacitor
in the SD pin CSD1 (100pF). The resultant circuit is shown in fig. 17.
The value of REOL4 is changed so that the lamp voltage during normal running produces a signal with
1.5 Vppk at the point (A) were the capacitor CEOL connects it to the SD pin. For a T5/35W lamp
1.2Kohm at REOL4 provides the correct voltage.
The SD pin is internally biased at 2V with 1Mohm impedance and therefore at the SD pin a signal
varying between 1.25V and 2.75V will normally be present due to the AC coupling of the 100nF
capacitor (CEOL).
During end of life the lamp voltage may increase either symmetrically (AC end of life, due to a similar
deterioration in both cathode) or asymmetrically (DC end of life, due to a deterioration only in one
cathode). This circuit is simpler and cheaper than the previous version and it has the advantage of
detecting both failure modes.
The peak to peak voltage at the SD pin will increase (with 2V DC offset) in either case until the
positive peak exceeds 3V and/or the negative peak drops below 1V, therefore triggering the window
comparator shutdown. The threshold of end of life can be adjusted by changing the value of REOL4
(usually 30% Vlamp is required).
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IRPLLNR4 | 功能描述:BALLAST UNIV INP FLUOR IR2166 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標準包裝:1 系列:- 類型:MCU 適用于相關(guān)產(chǎn)品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035 |
| IRPLLNR5 | 功能描述:電源管理IC開發(fā)工具 Uni Inpt Lin Fluor Ballast 54W TL5 Lamp RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| IRPLLNR7 | 功能描述:電源管理IC開發(fā)工具 Flourescent Ballast Using IRS2166DPBF RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| IRPLMB1E | 功能描述:KIT DESIGN BALLAST 220VAC RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標準包裝:1 系列:- 類型:MCU 適用于相關(guān)產(chǎn)品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035 |
| IR-POST-B | 制造商:Knoll Systems 功能描述:Single Target IR Repeater Kit with Black Postage Stamp Receiver 制造商:KNOLL SYSTEMS 功能描述:IR REPEATER COMPLETE KIT BLACK POSTAGE STAMP RECEIVER |
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