Psd Block Diagram - Toshiba Aplio SSA-770A Service Manual

No. 2D730-148E*O
(b) PSD block diagram
PSD-ENH
l
Main
Switcher '
IC21
Status Output
Overvoltage
UnderVoltage
OverCurrent
OverTemperature
48V
INPUT
0
I
Full Bridge
Phase-shift
Soft Switcher
Q2-Q5
Filter
L22 L23 L28
: :
: :
i i
: :
l
P3.3D
i ;
I j .M,2D
I,,&/,!
' :ge,;, L27 1
AUX 1 Tl
Internal Use Supply pycc
Switcher
1 Q6 -
Lu
T
- Filter - Linear Reg.
L6 L8
IC2
6-11