8-50
8-11. Power Factor Controller Circuit
This circuit is composed of Low pass filter block and Power feedback block. AC input is rectified by D601,
then it charge C6Y2, C610 and C609.
C610 is not charged during period
α
and period
γ
from input voltage directly, because the voltage of
C6Y2 is smaller than the voltage of C610. Then, C610 is charged during period
α
and period
γ
by Power
feedback block. When TR1 (internal IC621) turn on, the N1 winding of T6Y1 is charged with energy. When
TR1(internal IC621) turn off, the N2 winding of T6Y1 discharge energy. So, the voltage of point A is the
part of slant line(Fig.8-12 : VC610-VC6Y2).And C610 is charged with feedback energy during period
α
and period
γ
, because the voltage of point A is bigger than the voltage of C610.
C610 is charged during period
β
(Fig.8-12) from input voltage directly.(Power supply which doesn't have
“Power Factor Controller Circuit” is only charged during this period.)
Finally, the voltage of C610 and input current become Wave of Fig.8-12.The harmonic current is decrease,
and Power Factor is improved. Because C610 is charged not only period
β
but also many parts of 1 cycle.
(Fig.8-12) VOLTAGE
・
INPUT CURRENT
V
C610
V
C6Y2
GND
β
γ
Period
α
INPUT CURRENT
VOLTAGE
GND
V
C6Y2
<V
C610
V
C6Y2
>V
C610
V
C6Y2min
V
C6Y2
<V
C610
V
C6Y2
>V
C610
I
N2
I
N2
+I
D6Y2
+
POWER FEEDBACK BLOCK
GND
TR1
IC621
B
C
C
B
E
1
2
3
C611
R605
L601
D603
T601
T6Y1
+
-
D6Y2
N2
N1
C610
D6Y1
D6Y3
L6Y1
C6Y2
C6Y1
D601
AC
AC
POINT A
LOW PASS FILTER BLOCK
(Fig.8-11) POWER FOCTER CONTROLLER CIRCUIT
+
-
C609
Summary of Contents for MultiSync FP1370
Page 13: ...4 4 REMARK SYMBOL Mount the EMF PWB 121E REMARK SYMBOL Clamp the connector ...
Page 14: ...4 5 REMARK SYMBOL COIL FORMING UPPER SIDE REMARK SYMBOL COIL FORMING LOWER SIDE ...
Page 23: ...4 14 REMARK SYMBOL REMARK SYMBOL Clamp CN CA CN CC and CN D with CLAMPER WIRE ...
Page 26: ...4 17 REMARK SYMBOL Clamp the wires SAFETY REMARK SYMBOL Clamp the wires CN ASD CN AF 21 ...
Page 80: ...5 51 Fig 3 11 CONV PWB Fig 3 12 EMF PWB CN EMF CN LL CN RR CNEM CN CA CN D CN CCB HS8N1 ...
Page 143: ...8 18 15V 80V AFC D FOCUS Fig 3 1 HIGH VOLTAGE CIRCUIT AND PROTECTOR CIRCUIT ...
Page 260: ...10 1 ...
Page 261: ...10 2 ...
Page 262: ...10 3 ...
Page 263: ...10 4 ...
Page 264: ...10 5 ...
Page 266: ...for Human Potential ...
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