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參數(shù)資料
| 型號(hào)： | EFS11-T5 |
| 英文描述： | Single Event Hardened High-Speed, Dual Output PWM; Temperature Range: -55°C to 125°C; Package: 20-FlatPack |
| 中文描述： | 集成電路電源開關(guān) |
| 文件頁數(shù)： | 10/13頁 |
| 文件大?。?/td> | 235K |
| 代理商： | EFS11-T5 |
Striking pulse
1/ THE AC POWER SWITCH: FUNCTIONAL DESCRIPTION
The Starter is a bi-directional switch which performs two functions:
the preheat of the tube,
the ignition of the tube.
During the preheat period, the ASD
is fully
conducting. The tube lamp is short circuited by the
starter, and the current flows through its filaments. In
these conditions, the tube can not light up, but the
temperature of the tube electrodes increases.
At the end of the preheat period, the lamp filaments are
warm enough to emit electrons in the gas and to permit
the lamp ignition in good conditions. The ASD switches
off the preheating current . At this moment, the ballast is
equivalent to a current generator (I=ISO, ISO = Switched
Off current). As the ASD switches off, the starter voltage
increases. The amplitude of this high voltage spike is
clamped by the ASD (VBR≈1350 V). As the starter and
the tube are in parallel, the striking pulse is directly
applied to the tube. The electromagnetic energy of the
ballast is then discharged through the tube and the
ASD.
2/ WHAT’S NEW IN THIS SWITCH?
The AC SWITCH merges an auxiliary power supply for
the driver, a power clamping device (1350V) and a
bi-directional switch with his execution pilot block.
EFS STARLIGHT-KIT APPLICATION NOTE
3
2
1
FLUORESCENT
TUBE
220V / 50HZ
BALLAST
V strike
The mains voltage is applied
Preheating of the tube
Striking of the tube
PREHEAT
GND
Vcc
G2
TUBE
G1
Power supply
ON / OFF
DRIVER
NEW EFS ASD
AC
SWITCH
HIGH
VOL
T
AGE
CLAMPING
EFS
6/13
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| EFS21-T5 | IC-POWER SWITCH |
| EFS11-TL5 | High Frequency Half Bridge Driver; Temperature Range: -55°C to 125°C; Package: 16-FlatPack |
| EFS1A-CD | Lamp Starter |
| EFS31-T5 | Real-Time Clock/Calendar with I2C Bus™ and EEPROM; Temperature Range: -40°C to 85°C; Package: 8-TSSOP |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EFS11-TL5 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Lamp Starter |
| EFS125 | 功能描述:保險(xiǎn)絲 125A 415VAC IND RoHS:否 制造商:Littelfuse 產(chǎn)品:Surface Mount Fuses 電流額定值:0.5 A 電壓額定值:600 V 保險(xiǎn)絲類型:Fast Acting 保險(xiǎn)絲大小/組:Nano 尺寸:12.1 mm L x 4.5 mm W 安裝風(fēng)格: 端接類型:SMD/SMT 系列:485 |
| EFS160 | 功能描述:保險(xiǎn)絲 160A 415V AC INDUST. RoHS:否 制造商:Littelfuse 產(chǎn)品:Surface Mount Fuses 電流額定值:0.5 A 電壓額定值:600 V 保險(xiǎn)絲類型:Fast Acting 保險(xiǎn)絲大小/組:Nano 尺寸:12.1 mm L x 4.5 mm W 安裝風(fēng)格: 端接類型:SMD/SMT 系列:485 |
| EFS1ACD | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:IC-SM-PWR SUPPLY DRIVER |
| EFS1A-CD | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Lamp Starter |
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