MC34262_11 Datasheet, PDF (11/19 Pages) ON Semiconductor – Power Factor Controllers

MC34262, MC33262
92 to _RFI
138 Vac _Filter
1 C₅
D₂ D₄
D₁ D₃
Zero Current
Detector
+
2.5V
Reference
+
1.2V
1.6V/
1.4V
UVLO
36V
6.7V
+ ^13V/
8.0V
Delay
Timer R
RS
Latch
16V
10
Drive
Output
10
100k
R₆ 1N4934
8
D₆
+ ₁₀₀
C₄
5 22k
R₄
T
7
MUR130
D₅
V_{O 230V/}
MTP
8N50E
+
220
0.35A
C₃
Q₁
2.2M
R₅
Current Sense
Comparator
0.01
7.5k ₃
C₂
R₃
20k
4
1.5V
Overvoltage
Comparator
10pF
Multiplier
+
1.08 V_ref
10mA
Error
Amp
+
V_ref
1
Quickstart
1.0M
R₂
0.1
R₇
11k
R₁
6
2
0.68
C₁
Figure 20. 80 W Power Factor Controller
Power Factor Controller Test Data
AC Line Input
V_rms
90
P_in
85.9
PF
0.999
I_fund
0.93
Current Harmonic Distortion (% I_fund)
THD
2
3
5
7
2.6
0.08
1.6
0.84 0.95
V_O(pp)
4.0
100
85.3 0.999 0.85
2.3
0.13
1.0
1.2
0.73
4.0
110
85.1 0.998 0.77 2.2
0.10 0.58
1.5
0.59
4.0
120
84.7 0.998 0.71 3.0
0.09 0.73
1.9
0.58
4.1
130
84.4 0.997 0.65
3.9
0.12
1.7
2.2
0.61
4.1
138
84.1 0.996 0.62
4.6
0.16
2.4
2.3
0.60
4.1
This data was taken with the test set−up shown in Figure 25.
T = Coilcraft N2881−A
Primary: 62 turns of # 22 AWG
Secondary: 5 turns of # 22 AWG
Core: Coilcraft PT2510, EE 25
Gap: 0.072″ total for a primary inductance (L_P) of 320 mH
Heatsink = AAVID Engineering Inc. 590302B03600, or 593002B03400
DC Output
V_O
230.7
I_O
0.350
P_O
80.8
230.7 0.350 80.8
230.7 0.350 80.8
230.7 0.350 80.8
230.7 0.350 80.8
230.7 0.350 80.8
h(%)
94.0
94.7
94.9
95.3
95.7
96.0
http://onsemi.com
11