參數(shù)資料
型號(hào)： LT1103C
廠商： Linear Technology Corporation
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
中文描述： 抗輻射高效，5安培開(kāi)關(guān)穩(wěn)壓器
文件頁(yè)數(shù)： 26/32頁(yè)
文件大?。?/td> 452K
代理商： LT1103C
26
LT1103/LT1105
APPLICATIO
S I
N
FOR
ATIO
U
W
U
forward converter to define the switch voltage when S1 is
off. This “reset” winding limits the maximum duty cycle
allowed for the switch. This topology trades off reduced
transformer size for increased complexity and parts count.
A separate isolated feedback path is required for full
isolation from input to output because voltages on the
primary are no longer related to the DC output voltage
during switch off time.
The isolated feedback path can take several forms. A
second transformer in a modulator/demodulator scheme
provides the isolation, but with significant complexity. An
optoisolator can be substituted for the transformer with a
savings in volume to be traded off with component
variations and possible aging problems with the
optoisolator transfer function. Finally, an extra winding
closely coupled to the output inductor L1 can sense the
flux in this element and give a representation of the output
voltage when S1 is off.
V
OUT
in continuous modeis defined as:
V
OUT
= V
IN
N DC
The secondary voltage charges up L1 through D1 when S1
is on. When S1 is off, energy in L1 is transferred through
free-wheeling diode D2 to C1. The extra transformer
winding and diode D3 are needed in a single switch
D1
V
OUT
C1
1:N
LT1103 AI02
V
IN
S1
D2
D3
L1
COMMON
Simplified Forward Converter
TYPICAL APPLICATIO
N
S
15V
V
SW
LT1105
LT1103 TA04
I
LIM
LT1105 FET Connection
LT1103 FET Connection
15V
V
SW
LT1103
LT1103 TA03
相關(guān)PDF資料
PDF描述
LT1103CT7 RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
LT1105 4-Bit Synchronous Up/Down Binary Counters 16-SOIC 0 to 70
LT1105CN RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
LT1105CN8 RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
LT1105I RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LT1103CT7 制造商:LINER 制造商全稱:Linear Technology 功能描述:Offline Switching Regulator
LT1103CY 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Current-Mode SMPS Controller
LT1105 制造商:LINER 制造商全稱:Linear Technology 功能描述:Offline Switching Regulator
LT1105C 制造商:LINER 制造商全稱:Linear Technology 功能描述:Offline Switching Regulator
LT1105CN 功能描述:IC OFFLINE SWIT CM HV 14DIP RoHS:否 類別:集成電路 (IC) >> PMIC - AC-DC 轉(zhuǎn)換器，離線開(kāi)關(guān) 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 輸出隔離:隔離 頻率范圍:61kHz ~ 71kHz 輸入電壓:9.4 V ~ 28 V 輸出電壓:12V 功率（瓦特）:- 工作溫度:-40°C ~ 125°C 封裝/外殼:SC-74，SOT-457 供應(yīng)商設(shè)備封裝:6-TSOP 包裝:帶卷 (TR)
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