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參數(shù)資料
| 型號： | ICE1QS01 |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Controller for Switch Mode Power Supplies Supporting Low Power Standby and Power Factor Correction (PFC) |
| 中文描述： | 控制器開關(guān)電源支持低功耗待機和功率因數(shù)校正（PFC物料供應(yīng)） |
| 文件頁數(shù)： | 8/21頁 |
| 文件大?。?/td> | 484K |
| 代理商： | ICE1QS01 |
ICE1QS01
Version 1.4
8
27
Apr 2004
the current in the power transistor (Iprimary) is:
Lprimary: Primary inductance of the transformer
The advantage of primary current simulation is the elimination of the leading edge spike, which is
generated when the power transistor is switched on.
RZI (zero crossing input and primary regulation)
Zero current counter
Every time when the falling voltage ramp of V
RZI
crosses the 50 mV threshold a pulse is sent to the
zero-current-counter and increases the counter by one. If zero-current-counter and up-down-coun-
ter are equal the gate drive OUT is switched to high. Up-down counter is influenced via SRC voltage
as described below. If V
RZI
is greater than 50 mV gate drive OUT is always switched low.
Figure: Zero Crossing Switching Behaviour
VPCS
1 5
V
Lprimary
-------------------------------------------------------
Iprimary
C
2
×
×
R
2
+
=
VRZI
OUT
ton
toff
ton
toff
VPCS
VSRC
V
t
t
t
status up-down
counter = 0001:
swtch on at first
zero crossing
status up-down
counter = 0010:
swtch on at second
zero crossing
1.5V
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| ICE1QS01G | Controller for Switch Mode Power Supplies Supporting Low Power Standby and Power Factor Correction (PFC) |
| ICE3AS02 | Off-Line SMPS Current Mode Controller with integrated 500V Startup Cell |
| ICE3AS02G | Off-Line SMPS Current Mode Controller with integrated 500V Startup Cell |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICE1QS01G | 功能描述:軟開關(guān) PWM 控制器 PWM-QR CONTROL IC FOR SMPS RoHS:否 制造商:Fairchild Semiconductor 輸出端數(shù)量: 輸出電流: 開關(guān)頻率: 工作電源電壓:30 V 電源電流: 最大工作溫度:+ 105 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| ICE1QS01GNT | 制造商:Infineon Technologies AG 功能描述:Controller Switch Mode Power Supply 8-Pin DSO |
| ICE1QS01GXT | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 CTRLR SMP SUPPLIES LOW POWER PFC 20V RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| ICE1QS01XK | 制造商:Infineon Technologies AG 功能描述:Controller Switch Mode Power Supply 8-Pin PDIP |
| ICE200 | 制造商:Atmel Corporation 功能描述:IN-CIRCUIT EMULATOR |
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