參數(shù)資料
型號(hào)： TK651XX
廠商： TOKO Inc.
英文描述： STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR
中文描述： 升壓電壓電壓監(jiān)控轉(zhuǎn)爐
文件頁(yè)數(shù)： 15/20頁(yè)
文件大?。?/td> 138K
代理商： TK651XX
January 1999 TOKO, Inc.
Page 15
TK651xx
HIGHER-ORDER DESIGN EQUATION
The equation above was developed as a closed form approximation. In order to allow for a closed form, the design variable
that requires the least approximation was “I
OUT
,” as opposed to “L.”
The approximations made in the equation development have the primary consequence that error is introduced as
resistive losses become relatively large. As it is normally a practical design goal to ensure that resistive losses will be
relatively small, this seems acceptable. The variables used are:
I
OUT
Output current capability
I
OUT(TGT)
Targeted output current capability
V
F
Diode forward voltage
D
Oscillating duty ratio of main switch
L
Inductance value
Inductor winding resistance
R
OF
Output filter resistance
Snubber capacitance
V
OUT
Output voltage
V
BB
Battery voltage, unloaded
f
Oscillator frequency
R
S
Source resistance (battery + filter) R
L
R
SW
Switch on-state resistance
R
U
ESR of upstream output capacitor C
S
Deriving a design solution with this equation is necessarily an iterative process. Use worst-case tolerances as described
for inductor selection, using different values for “L” to approximately achieve an “I
OUT
” equal to the targeted value. Then,
fine tune the parasitic values as needed and, if necessary, readjust “L” again and reiterate the process.
SINGLE-CELL APPLICATION (CONT.)
C
S
[V
BB
-
2
+ (V
OUT
+ V
F
)
2
+ (V
OUT
+ V
F
- V
BB
)
2
]
2(V
OUT
+ V
F
)
I
OUT
=
V
OUT
+ R
OF
I
OUT(TGT)
+ D
BB
R
U
) + V
F
- V
BB
1 - D
S
+ R
L
)
2 L
(
2 L
)
2 L
D
[
(
2 L
1- D
S
+ R
L
+ R
SW
)
]
2
V
BB
2
D
相關(guān)PDF資料
PDF描述
TK65218 STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR
TK65218M STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR
TK65218MTL STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR
TK65221 STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR
TK65221M STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TK65218 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR
TK65218M 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR
TK65218MTL 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR
TK65218MTL/18M 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR
TK65221 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*