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參數(shù)資料
| 型號： | TK75003D |
| 廠商： | TOKO INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | PWM CONTROLLER |
| 中文描述： | SWITCHING CONTROLLER, 1600 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封裝： | DIP-8 |
| 文件頁數(shù)： | 13/14頁 |
| 文件大?。?/td> | 108K |
| 代理商： | TK75003D |
January 1999 TOKO, Inc.
Page 13
TK75003
FIGURE 9: BOOST POWER FACTOR CORRECTOR APPLICATION CIRCUIT
APPLICATION INFORMATION (CONT.)
Select for R
7
:
R
7
= 4.3 kohms
Resistance of current-sense resistor R
8
(Note 2):
R
8
= (V
CCD
- I
SC(PK)
x R
7
x D) / I
L1(PK)
= 0.201 ohms
Select for R
8
:
R
8
= 0.18 ohms
Note 1: This value of R
ensures that the line current will be zero around
the zero-crossing of the line voltage, which is the required condition for
low-distortion line current.
Note 2:
This value of R
ensures that the sum of the voltage drop across
R
(caused by the peak inductor current) and the voltage drop across R
7
(caused by the instantaneous value of the stabilizing current) is equal to
the threshold voltage of the current-control detector at the peak of the
line voltage.
C1
0.1 μF
F1
2 A / 250 V
B1
600 V, 1.5 A
R1a
24 k
0.5 W
R1b
24 k
0.5 W
R2
5.6 k
C10
1 nF
400 V
C2
470 μF
R3
5.6 k
R4
150 k
D4
30 V
D2 IN4148
C3
100 nF
C4
100 nF
VCC
FB
GND
CT
DRV
R7
4.3 k
C6
10 nF
R8
0.18
0.5 W
R12
2.43 k
C8
100 μF
400 V
R11a
200 k
0.25 W
R11b
200 k
0.25 W
D3
HFA04TB60
C5
820 pF
5 %
R5
10
Q1
IRF840
R6
51
D1
1N4148
TH1
10
U1
TK75003
t:9
ETD-29 core
gap in center leg
L1
2.5 mH
t: 220
380 V DC
100 W
85-265
VAC
R9
33 k
R10
1.2 k
Q2
2907A
U2
TL431
R13
100 k
C7
0.33 μF
+
-
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TK75003DIMG | PWM CONTROLLER |
| TK75005DCTL | LOW-COST FLEXIBLE PWM CONTROLLER |
| TK75005 | LOW-COST FLEXIBLE PWM CONTROLLER |
| TK75005DCMG | LOW-COST FLEXIBLE PWM CONTROLLER |
| TK75005MCMG | LOW-COST FLEXIBLE PWM CONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TK75003DIMG | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:PWM CONTROLLER |
| TK75003DIMG/75003 | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:PWM CONTROLLER |
| TK75005 | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:LOW-COST FLEXIBLE PWM CONTROLLER |
| TK75005DCMG | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:LOW-COST FLEXIBLE PWM CONTROLLER |
| TK75005DCTL | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:LOW-COST FLEXIBLE PWM CONTROLLER |
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