Low-Voltage Power Supply; Outline - Canon mf6600 Series Service Manual

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Technical Overview > Engine Control System > Low-voltage Power Supply > Outline

Low-voltage Power Supply

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Outline

The Low-voltage power supply converts AC Power from the power receptacle into DC Power
to cover the DC loads.
Block diagram of the Low Voltage Power Supply is shown below.
● TYPE I
Power switch
(SW1)
Low-voltage power supply
Noise
filter
Fuse
(FU101)
3LVPS
2LVPS
Noise filter
+24V generation
Main
circuit
controller
generation
circuit
Protection
circuit
+3.3V
generation
circuit
2 Technical Overview > Engine Control System > Low-voltage Power Supply > Outline
Engine controller
Fixing
control
Fixing unit
circuit
High-voltage
power supply
+24P1
DOOR
Main motor,
SNS
FET
+24U
+24V
PWSV
Door switch
(SW301)
+5V
+5V
+3.3V
DC controller
● TYPE II
Power switch
(SW1)
Fuse
(FU101)
Noise filter
+24V generation
circuit
etc.
Protection
circuit
F-2-12 F-2-12
Engine controller
Low-voltage power supply
Fixing
Noise
control
filter
circuit
High-voltage
power supply
DOOR
SNS
FET
+24V
FET
+5V
generation +5V
circuit
+3.3V
+3.3V
generation
circuit
DC controller
2-12
Fixing unit
+24P1
Main motor, etc.
+24U
Door switch
(SW301)
+24V_S
Main controller
+3.3V
F-2-13 F-2-13
2-12