Operation Of Power Supply (Aps-M602) - Toshiba TLP-X2000B Service Manual

Operation of Power Supply (APS-M602)

OUTLINE
This power circuit APS-T60 is composed of 2 units as shown as below. (Fig.1)
APS-T602 is composed of AC inlet and input line filters mainly.
APS-T603 is composed of rectifier circuits, PFC circuit and DC/DC converter circuit mainly.
The power circuit APS-T60 is supplied 100~240Vac and it supplies 5 power sources to load
circuits.
In case of the typical operation, it supplies 370V (260W max.) and 16V as Non-isolated output and
supplies 3 outputs as isolated output. 3 isolated outputs are 6V, 14V and 17V.
In case of the standby mode, 16V line is turned off. And the voltage of 370V line is varied to
voltagethat
rectified the AC source. 3 isolated outputs are not turned off.
Power
Bridge Factor
Rectifier Correction
Circuit (PFC)
Circuit
6–9
+370V (non-isolated)
+16V (non-isolated)
0V (non-isolated)
DC/DC
Switching
Converter
Primary
+16V line Feedback
Rectifier
Control
Circuit
Chapter 6
to Ballast
+17V
+14V
Secondary
Rectifier
+6V
Circuit
GND
ST/OP
(ON/OFF
Control)